OSX/sec/Security/SecKeyAdaptors.c

   1 /*
   2  * Copyright (c) 2016 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 /*
  25  * SecKeyAdaptors.c - Implementation of assorted algorithm adaptors for SecKey.
  26  * Algorithm adaptor is able to perform some transformation on provided input and calculated results and invoke
  27  * underlying operation with different algorithm. Typical adaptors are message->digest or unpadded->padded.
  28  * To invoke underlying operation, add algorithm to the context algorithm array and invoke SecKeyRunAlgorithmAndCopyResult().
  29  */
  30
  31 #include <Security/SecBase.h>
  32 #include <Security/SecKeyInternal.h>
  33 #include <Security/SecItem.h>
  34 #include <Security/SecCFAllocator.h>
  35
  36 #include <AssertMacros.h>
  37 #include <utilities/SecCFWrappers.h>
  38 #include <utilities/array_size.h>
  39 #include <utilities/debugging.h>
  40 #include <utilities/SecCFError.h>
  41 #include <utilities/SecBuffer.h>
  42
  43 #include <corecrypto/ccsha1.h>
  44 #include <corecrypto/ccsha2.h>
  45 #include <corecrypto/ccmd5.h>
  46 #include <corecrypto/ccrsa_priv.h>
  47 #include <corecrypto/ccansikdf.h>
  48 #include <corecrypto/ccmode.h>
  49 #include <corecrypto/ccaes.h>
  50
  51 #pragma mark Algorithm constants value definitions
  52
  53 const SecKeyAlgorithm kSecKeyAlgorithmRSASignatureRaw = CFSTR("algid:sign:RSA:raw");
  54 const SecKeyAlgorithm kSecKeyAlgorithmRSASignatureRawCCUnit = CFSTR("algid:sign:RSA:raw-cc");
  55
  56 const SecKeyAlgorithm kSecKeyAlgorithmRSASignatureDigestPKCS1v15Raw = CFSTR("algid:sign:RSA:digest-PKCS1v15");
  57 const SecKeyAlgorithm kSecKeyAlgorithmRSASignatureDigestPKCS1v15MD5 = CFSTR("algid:sign:RSA:digest-PKCS1v15:MD5");
  58 const SecKeyAlgorithm kSecKeyAlgorithmRSASignatureDigestPKCS1v15SHA1 = CFSTR("algid:sign:RSA:digest-PKCS1v15:SHA1");
  59 const SecKeyAlgorithm kSecKeyAlgorithmRSASignatureDigestPKCS1v15SHA224 = CFSTR("algid:sign:RSA:digest-PKCS1v15:SHA224");
  60 const SecKeyAlgorithm kSecKeyAlgorithmRSASignatureDigestPKCS1v15SHA256 = CFSTR("algid:sign:RSA:digest-PKCS1v15:SHA256");
  61 const SecKeyAlgorithm kSecKeyAlgorithmRSASignatureDigestPKCS1v15SHA384 = CFSTR("algid:sign:RSA:digest-PKCS1v15:SHA384");
  62 const SecKeyAlgorithm kSecKeyAlgorithmRSASignatureDigestPKCS1v15SHA512 = CFSTR("algid:sign:RSA:digest-PKCS1v15:SHA512");
  63
  64 const SecKeyAlgorithm kSecKeyAlgorithmRSASignatureMessagePKCS1v15MD5 = CFSTR("algid:sign:RSA:message-PKCS1v15:MD5");
  65 const SecKeyAlgorithm kSecKeyAlgorithmRSASignatureMessagePKCS1v15SHA1 = CFSTR("algid:sign:RSA:message-PKCS1v15:SHA1");
  66 const SecKeyAlgorithm kSecKeyAlgorithmRSASignatureMessagePKCS1v15SHA224 = CFSTR("algid:sign:RSA:message-PKCS1v15:SHA224");
  67 const SecKeyAlgorithm kSecKeyAlgorithmRSASignatureMessagePKCS1v15SHA256 = CFSTR("algid:sign:RSA:message-PKCS1v15:SHA256");
  68 const SecKeyAlgorithm kSecKeyAlgorithmRSASignatureMessagePKCS1v15SHA384 = CFSTR("algid:sign:RSA:message-PKCS1v15:SHA384");
  69 const SecKeyAlgorithm kSecKeyAlgorithmRSASignatureMessagePKCS1v15SHA512 = CFSTR("algid:sign:RSA:message-PKCS1v15:SHA512");
  70
  71 const SecKeyAlgorithm kSecKeyAlgorithmECDSASignatureRFC4754 = CFSTR("algid:sign:ECDSA:RFC4754");
  72
  73 const SecKeyAlgorithm kSecKeyAlgorithmECDSASignatureDigestX962 = CFSTR("algid:sign:ECDSA:digest-X962");
  74 const SecKeyAlgorithm kSecKeyAlgorithmECDSASignatureDigestX962SHA1 = CFSTR("algid:sign:ECDSA:digest-X962:SHA1");
  75 const SecKeyAlgorithm kSecKeyAlgorithmECDSASignatureDigestX962SHA224 = CFSTR("algid:sign:ECDSA:digest-X962:SHA224");
  76 const SecKeyAlgorithm kSecKeyAlgorithmECDSASignatureDigestX962SHA256 = CFSTR("algid:sign:ECDSA:digest-X962:SHA256");
  77 const SecKeyAlgorithm kSecKeyAlgorithmECDSASignatureDigestX962SHA384 = CFSTR("algid:sign:ECDSA:digest-X962:SHA384");
  78 const SecKeyAlgorithm kSecKeyAlgorithmECDSASignatureDigestX962SHA512 = CFSTR("algid:sign:ECDSA:digest-X962:SHA512");
  79
  80 const SecKeyAlgorithm kSecKeyAlgorithmECDSASignatureMessageX962SHA1 = CFSTR("algid:sign:ECDSA:message-X962:SHA1");
  81 const SecKeyAlgorithm kSecKeyAlgorithmECDSASignatureMessageX962SHA224 = CFSTR("algid:sign:ECDSA:message-X962:SHA224");
  82 const SecKeyAlgorithm kSecKeyAlgorithmECDSASignatureMessageX962SHA256 = CFSTR("algid:sign:ECDSA:message-X962:SHA256");
  83 const SecKeyAlgorithm kSecKeyAlgorithmECDSASignatureMessageX962SHA384 = CFSTR("algid:sign:ECDSA:message-X962:SHA384");
  84 const SecKeyAlgorithm kSecKeyAlgorithmECDSASignatureMessageX962SHA512 = CFSTR("algid:sign:ECDSA:message-X962:SHA512");
  85
  86 const SecKeyAlgorithm kSecKeyAlgorithmRSAEncryptionRaw = CFSTR("algid:encrypt:RSA:raw");
  87 const SecKeyAlgorithm kSecKeyAlgorithmRSAEncryptionRawCCUnit = CFSTR("algid:encrypt:RSA:raw-cc");
  88 const SecKeyAlgorithm kSecKeyAlgorithmRSAEncryptionPKCS1 = CFSTR("algid:encrypt:RSA:PKCS1");
  89 const SecKeyAlgorithm kSecKeyAlgorithmRSAEncryptionOAEPSHA1 = CFSTR("algid:encrypt:RSA:OAEP:SHA1");
  90 const SecKeyAlgorithm kSecKeyAlgorithmRSAEncryptionOAEPSHA224 = CFSTR("algid:encrypt:RSA:OAEP:SHA224");
  91 const SecKeyAlgorithm kSecKeyAlgorithmRSAEncryptionOAEPSHA256 = CFSTR("algid:encrypt:RSA:OAEP:SHA256");
  92 const SecKeyAlgorithm kSecKeyAlgorithmRSAEncryptionOAEPSHA384 = CFSTR("algid:encrypt:RSA:OAEP:SHA384");
  93 const SecKeyAlgorithm kSecKeyAlgorithmRSAEncryptionOAEPSHA512 = CFSTR("algid:encrypt:RSA:OAEP:SHA512");
  94
  95 const SecKeyAlgorithm kSecKeyAlgorithmRSAEncryptionOAEPSHA1AESGCM = CFSTR("algid:encrypt:RSA:OAEP:SHA1:AESGCM");
  96 const SecKeyAlgorithm kSecKeyAlgorithmRSAEncryptionOAEPSHA224AESGCM = CFSTR("algid:encrypt:RSA:OAEP:SHA224:AESGCM");
  97 const SecKeyAlgorithm kSecKeyAlgorithmRSAEncryptionOAEPSHA256AESGCM = CFSTR("algid:encrypt:RSA:OAEP:SHA256:AESGCM");
  98 const SecKeyAlgorithm kSecKeyAlgorithmRSAEncryptionOAEPSHA384AESGCM = CFSTR("algid:encrypt:RSA:OAEP:SHA384:AESGCM");
  99 const SecKeyAlgorithm kSecKeyAlgorithmRSAEncryptionOAEPSHA512AESGCM = CFSTR("algid:encrypt:RSA:OAEP:SHA512:AESGCM");
 100
 101 const SecKeyAlgorithm kSecKeyAlgorithmECIESEncryptionStandardX963SHA1AESGCM = CFSTR("algid:encrypt:ECIES:ECDH:KDFX963:SHA1:AESGCM");
 102 const SecKeyAlgorithm kSecKeyAlgorithmECIESEncryptionStandardX963SHA224AESGCM = CFSTR("algid:encrypt:ECIES:ECDH:KDFX963:SHA224:AESGCM");
 103 const SecKeyAlgorithm kSecKeyAlgorithmECIESEncryptionStandardX963SHA256AESGCM = CFSTR("algid:encrypt:ECIES:ECDH:KDFX963:SHA256:AESGCM");
 104 const SecKeyAlgorithm kSecKeyAlgorithmECIESEncryptionStandardX963SHA384AESGCM = CFSTR("algid:encrypt:ECIES:ECDH:KDFX963:SHA384:AESGCM");
 105 const SecKeyAlgorithm kSecKeyAlgorithmECIESEncryptionStandardX963SHA512AESGCM = CFSTR("algid:encrypt:ECIES:ECDH:KDFX963:SHA512:AESGCM");
 106
 107 const SecKeyAlgorithm kSecKeyAlgorithmECIESEncryptionCofactorX963SHA1AESGCM = CFSTR("algid:encrypt:ECIES:ECDHC:KDFX963:SHA1:AESGCM");
 108 const SecKeyAlgorithm kSecKeyAlgorithmECIESEncryptionCofactorX963SHA224AESGCM = CFSTR("algid:encrypt:ECIES:ECDHC:KDFX963:SHA224:AESGCM");
 109 const SecKeyAlgorithm kSecKeyAlgorithmECIESEncryptionCofactorX963SHA256AESGCM = CFSTR("algid:encrypt:ECIES:ECDHC:KDFX963:SHA256:AESGCM");
 110 const SecKeyAlgorithm kSecKeyAlgorithmECIESEncryptionCofactorX963SHA384AESGCM = CFSTR("algid:encrypt:ECIES:ECDHC:KDFX963:SHA384:AESGCM");
 111 const SecKeyAlgorithm kSecKeyAlgorithmECIESEncryptionCofactorX963SHA512AESGCM = CFSTR("algid:encrypt:ECIES:ECDHC:KDFX963:SHA512:AESGCM");
 112
 113 const SecKeyAlgorithm kSecKeyAlgorithmECDHKeyExchangeStandard = CFSTR("algid:keyexchange:ECDH");
 114 const SecKeyAlgorithm kSecKeyAlgorithmECDHKeyExchangeStandardX963SHA1 = CFSTR("algid:keyexchange:ECDH:KDFX963:SHA1");
 115 const SecKeyAlgorithm kSecKeyAlgorithmECDHKeyExchangeStandardX963SHA224 = CFSTR("algid:keyexchange:ECDH:KDFX963:SHA224");
 116 const SecKeyAlgorithm kSecKeyAlgorithmECDHKeyExchangeStandardX963SHA256 = CFSTR("algid:keyexchange:ECDH:KDFX963:SHA256");
 117 const SecKeyAlgorithm kSecKeyAlgorithmECDHKeyExchangeStandardX963SHA384 = CFSTR("algid:keyexchange:ECDH:KDFX963:SHA384");
 118 const SecKeyAlgorithm kSecKeyAlgorithmECDHKeyExchangeStandardX963SHA512 = CFSTR("algid:keyexchange:ECDH:KDFX963:SHA512");
 119
 120 const SecKeyAlgorithm kSecKeyAlgorithmECDHKeyExchangeCofactor = CFSTR("algid:keyexchange:ECDHC");
 121 const SecKeyAlgorithm kSecKeyAlgorithmECDHKeyExchangeCofactorX963SHA1 = CFSTR("algid:keyexchange:ECDHC:KDFX963:SHA1");
 122 const SecKeyAlgorithm kSecKeyAlgorithmECDHKeyExchangeCofactorX963SHA224 = CFSTR("algid:keyexchange:ECDHC:KDFX963:SHA224");
 123 const SecKeyAlgorithm kSecKeyAlgorithmECDHKeyExchangeCofactorX963SHA256 = CFSTR("algid:keyexchange:ECDHC:KDFX963:SHA256");
 124 const SecKeyAlgorithm kSecKeyAlgorithmECDHKeyExchangeCofactorX963SHA384 = CFSTR("algid:keyexchange:ECDHC:KDFX963:SHA384");
 125 const SecKeyAlgorithm kSecKeyAlgorithmECDHKeyExchangeCofactorX963SHA512 = CFSTR("algid:keyexchange:ECDHC:KDFX963:SHA512");
 126
 127 const SecKeyAlgorithm kSecKeyAlgorithmECIESEncryptionAKSSmartCard = CFSTR("algid:encrypt:ECIES:ECDH:SHA256:2PubKeys");
 128
 129 void SecKeyOperationContextDestroy(SecKeyOperationContext *context) {
 130     CFReleaseNull(context->algorithm);
 131 }
 132
 133 static void PerformWithCFDataBuffer(CFIndex size, void (^operation)(uint8_t *buffer, CFDataRef data)) {
 134     PerformWithBuffer(size, ^(size_t size, uint8_t *buffer) {
 135         CFDataRef data = CFDataCreateWithBytesNoCopy(kCFAllocatorDefault, (const UInt8 *)buffer, size, kCFAllocatorNull);
 136         operation(buffer, data);
 137         CFRelease(data);
 138     });
 139 }
 140
 141 static CF_RETURNS_RETAINED CFDataRef SecKeyMessageToDigestAdaptor(SecKeyOperationContext *context, CFDataRef message, CFDataRef in2,
 142                                               const struct ccdigest_info *di, CFErrorRef *error) {
 143     if (context->mode == kSecKeyOperationModeCheckIfSupported) {
 144         return SecKeyRunAlgorithmAndCopyResult(context, NULL, NULL, error);
 145     }
 146
 147     __block CFTypeRef result;
 148     PerformWithCFDataBuffer(di->output_size, ^(uint8_t *buffer, CFDataRef data) {
 149         ccdigest(di, CFDataGetLength(message), CFDataGetBytePtr(message), buffer);
 150         result = SecKeyRunAlgorithmAndCopyResult(context, data, in2, error);
 151     });
 152     return result;
 153 }
 154
 155 #define SECKEY_DIGEST_RSA_ADAPTORS(name, di) \
 156 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureMessagePKCS1v15 ## name( \
 157         SecKeyOperationContext *context, CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) { \
 158     CFArrayAppendValue(context->algorithm, kSecKeyAlgorithmRSASignatureDigestPKCS1v15 ## name); \
 159     return SecKeyMessageToDigestAdaptor(context, in1, in2, di, error); \
 160 }
 161
 162 #define SECKEY_DIGEST_ADAPTORS(name, di) SECKEY_DIGEST_RSA_ADAPTORS(name, di) \
 163 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureMessageX962 ## name( \
 164         SecKeyOperationContext *context, CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) { \
 165     CFArrayAppendValue(context->algorithm, kSecKeyAlgorithmECDSASignatureDigestX962 ## name); \
 166     return SecKeyMessageToDigestAdaptor(context, in1, in2, di, error); \
 167 } \
 168 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureDigestX962 ## name( \
 169         SecKeyOperationContext *context, CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) { \
 170     CFArrayAppendValue(context->algorithm, kSecKeyAlgorithmECDSASignatureDigestX962); \
 171     return SecKeyRunAlgorithmAndCopyResult(context, in1, in2, error); \
 172 }
 173
 174 SECKEY_DIGEST_ADAPTORS(SHA1, ccsha1_di())
 175 SECKEY_DIGEST_ADAPTORS(SHA224, ccsha224_di())
 176 SECKEY_DIGEST_ADAPTORS(SHA256, ccsha256_di())
 177 SECKEY_DIGEST_ADAPTORS(SHA384, ccsha384_di())
 178 SECKEY_DIGEST_ADAPTORS(SHA512, ccsha512_di())
 179 SECKEY_DIGEST_RSA_ADAPTORS(MD5, ccmd5_di())
 180
 181 #undef SECKEY_DIGEST_RSA_ADAPTORS
 182 #undef SECKEY_DIGEST_ADAPTORS
 183
 184 static CFDataRef SecKeyRSACopyBigEndianToCCUnit(CFDataRef bigEndian, size_t size) {
 185     CFMutableDataRef result = NULL;
 186     if (bigEndian != NULL) {
 187         size_t dataSize = CFDataGetLength(bigEndian);
 188         if (dataSize > size) {
 189             size = dataSize;
 190         }
 191         result = CFDataCreateMutableWithScratch(kCFAllocatorDefault, ccrsa_sizeof_n_from_size(size));
 192         ccn_read_uint(ccn_nof_size(size), (cc_unit *)CFDataGetMutableBytePtr(result), dataSize, CFDataGetBytePtr(bigEndian));
 193     }
 194     return result;
 195 }
 196
 197 static void PerformWithBigEndianToCCUnit(CFDataRef bigEndian, size_t size, void (^operation)(CFDataRef ccunits)) {
 198     if (bigEndian == NULL) {
 199         return operation(NULL);
 200     }
 201     size_t dataSize = CFDataGetLength(bigEndian);
 202     if (dataSize > size) {
 203         size = dataSize;
 204     }
 205     PerformWithCFDataBuffer(ccrsa_sizeof_n_from_size(size), ^(uint8_t *buffer, CFDataRef data) {
 206         ccn_read_uint(ccn_nof_size(size), (cc_unit *)buffer, dataSize, CFDataGetBytePtr(bigEndian));
 207         operation(data);
 208     });
 209 }
 210
 211 static CFDataRef SecKeyRSACopyCCUnitToBigEndian(CFDataRef ccunits, size_t size) {
 212     CFMutableDataRef result = NULL;
 213     if (ccunits != NULL) {
 214         cc_size n = ccn_nof_size(CFDataGetLength(ccunits));
 215         const cc_unit *s = (const cc_unit *)CFDataGetBytePtr(ccunits);
 216         result = CFDataCreateMutableWithScratch(kCFAllocatorDefault, size);
 217         ccn_write_uint_padded(n, s, CFDataGetLength(result), CFDataGetMutableBytePtr(result));
 218     }
 219     return result;
 220 }
 221
 222 static void PerformWithCCUnitToBigEndian(CFDataRef ccunits, size_t size, void (^operation)(CFDataRef bigEndian)) {
 223     if (ccunits == NULL) {
 224         return operation(NULL);
 225     }
 226     PerformWithCFDataBuffer(size, ^(uint8_t *buffer, CFDataRef data) {
 227         cc_size n = ccn_nof_size(CFDataGetLength(ccunits));
 228         const cc_unit *s = (const cc_unit *)CFDataGetBytePtr(ccunits);
 229         ccn_write_uint_padded(n, s, size, buffer);
 230         operation(data);
 231     });
 232 }
 233
 234 static CFTypeRef SecKeyRSACopyPKCS1EMSASignature(SecKeyOperationContext *context,
 235                                                  CFDataRef in1, CFDataRef in2, CFErrorRef *error, const uint8_t *oid) {
 236     if (oid != NULL) {
 237         CFArrayAppendValue(context->algorithm, kSecKeyAlgorithmRSASignatureDigestPKCS1v15Raw);
 238     }
 239     CFArrayAppendValue(context->algorithm, kSecKeyAlgorithmRSASignatureRawCCUnit);
 240     if (context->mode == kSecKeyOperationModeCheckIfSupported) {
 241         return SecKeyRunAlgorithmAndCopyResult(context, NULL, NULL, error);
 242     }
 243
 244     __block CFTypeRef result = NULL;
 245     size_t size = SecKeyGetBlockSize(context->key);
 246     if (size == 0) {
 247         SecError(errSecParam, error, CFSTR("expecting RSA key"));
 248         return NULL;
 249     }
 250     PerformWithCFDataBuffer(size, ^(uint8_t *buffer, CFDataRef data) {
 251         uint8_t s[size];
 252         int err = ccrsa_emsa_pkcs1v15_encode(size, s, CFDataGetLength(in1), CFDataGetBytePtr(in1), oid);
 253         require_noerr_action_quiet(err, out, SecError(errSecParam, error, CFSTR("RSAsign wrong input data length")));
 254         ccn_read_uint(ccn_nof_size(size), (cc_unit *)buffer, size, s);
 255         require_quiet(result = SecKeyRunAlgorithmAndCopyResult(context, data, NULL, error), out);
 256         CFAssignRetained(result, SecKeyRSACopyCCUnitToBigEndian(result, SecKeyGetBlockSize(context->key)));
 257     out:;
 258     });
 259     return result;
 260 }
 261
 262 #define seckey_ccoid_md5 ((unsigned char *)"\x06\x08\x2a\x86\x48\x86\xf7\x0d\x02\x05")
 263
 264 #define PKCS1v15_EMSA_SIGN_ADAPTOR(name, oid) \
 265 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_Sign_RSASignatureDigestPKCS1v15 ## name( \
 266         SecKeyOperationContext *context, CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) { \
 267     return SecKeyRSACopyPKCS1EMSASignature(context, in1, in2, error, oid); \
 268 }
 269
 270 PKCS1v15_EMSA_SIGN_ADAPTOR(SHA1, ccoid_sha1)
 271 PKCS1v15_EMSA_SIGN_ADAPTOR(SHA224, ccoid_sha224)
 272 PKCS1v15_EMSA_SIGN_ADAPTOR(SHA256, ccoid_sha256)
 273 PKCS1v15_EMSA_SIGN_ADAPTOR(SHA384, ccoid_sha384)
 274 PKCS1v15_EMSA_SIGN_ADAPTOR(SHA512, ccoid_sha512)
 275 PKCS1v15_EMSA_SIGN_ADAPTOR(Raw, NULL)
 276 PKCS1v15_EMSA_SIGN_ADAPTOR(MD5, seckey_ccoid_md5)
 277
 278 #undef PKCS1v15_EMSA_SIGN_ADAPTOR
 279
 280 static CFTypeRef SecKeyAlgorithmAdaptorCopyBigEndianToCCUnit(SecKeyOperationContext *context,
 281                                                              CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) {
 282     if (context->mode == kSecKeyOperationModeCheckIfSupported) {
 283         return SecKeyRunAlgorithmAndCopyResult(context, NULL, NULL, error);
 284     }
 285
 286     __block CFTypeRef result = NULL;
 287     PerformWithBigEndianToCCUnit(in1, SecKeyGetBlockSize(context->key), ^(CFDataRef ccunits) {
 288         result = SecKeyRunAlgorithmAndCopyResult(context, ccunits, in2, error);
 289         if (result != NULL) {
 290             CFAssignRetained(result, SecKeyRSACopyCCUnitToBigEndian(result, SecKeyGetBlockSize(context->key)));
 291         }
 292     });
 293     return result;
 294 }
 295
 296 static CFTypeRef SecKeyAlgorithmAdaptorCopyCCUnitToBigEndian(SecKeyOperationContext *context,
 297                                                              CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) {
 298     if (context->mode == kSecKeyOperationModeCheckIfSupported) {
 299         return SecKeyRunAlgorithmAndCopyResult(context, NULL, NULL, error);
 300     }
 301
 302     __block CFTypeRef result = NULL;
 303     PerformWithCCUnitToBigEndian(in1, SecKeyGetBlockSize(context->key), ^(CFDataRef bigEndian) {
 304         result = SecKeyRunAlgorithmAndCopyResult(context, bigEndian, in2, error);
 305         if (result != NULL) {
 306             CFAssignRetained(result, SecKeyRSACopyBigEndianToCCUnit(result, SecKeyGetBlockSize(context->key)));
 307         }
 308     });
 309     return result;
 310 }
 311
 312 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureRaw(SecKeyOperationContext *context,
 313                                                                              CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) {
 314     CFArrayAppendValue(context->algorithm, kSecKeyAlgorithmRSASignatureRawCCUnit);
 315     return SecKeyAlgorithmAdaptorCopyBigEndianToCCUnit(context, in1, in2, error);
 316 }
 317
 318 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureRawCCUnit(SecKeyOperationContext *context,
 319                                                                                    CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) {
 320     CFArrayAppendValue(context->algorithm, kSecKeyAlgorithmRSASignatureRaw);
 321     return SecKeyAlgorithmAdaptorCopyCCUnitToBigEndian(context, in1, in2, error);
 322 }
 323
 324 static bool SecKeyVerifyBadSignature(CFErrorRef *error) {
 325     return SecError(errSecVerifyFailed, error, CFSTR("RSA signature verification failed, no match"));
 326 }
 327
 328 static CFTypeRef SecKeyRSAVerifyAdaptorCopyResult(SecKeyOperationContext *context, CFTypeRef signature, CFErrorRef *error,
 329                                                   Boolean (^verifyBlock)(CFDataRef decrypted)) {
 330     CFTypeRef result = NULL;
 331     context->operation = kSecKeyOperationTypeDecrypt;
 332     CFArrayAppendValue(context->algorithm, kSecKeyAlgorithmRSAEncryptionRaw);
 333     result = SecKeyRunAlgorithmAndCopyResult(context, signature, NULL, error);
 334     if (context->mode == kSecKeyOperationModePerform && result != NULL) {
 335         if (verifyBlock(result)) {
 336             CFRetainAssign(result, kCFBooleanTrue);
 337         } else {
 338             CFRetainAssign(result, kCFBooleanFalse);
 339             SecKeyVerifyBadSignature(error);
 340         }
 341     }
 342     return result;
 343 }
 344
 345 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_Verify_RSASignatureRaw(SecKeyOperationContext *context,
 346                                                                          CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) {
 347     return SecKeyRSAVerifyAdaptorCopyResult(context, in2, error, ^Boolean(CFDataRef decrypted) {
 348         // Skip zero-padding from the beginning of the decrypted signature.
 349         const UInt8 *data = CFDataGetBytePtr(decrypted);
 350         CFIndex length = CFDataGetLength(decrypted);
 351         while (*data == 0x00 && length > 0) {
 352             data++;
 353             length--;
 354         }
 355         // The rest of the decrypted signature must be the same as input data.
 356         return length == CFDataGetLength(in1) && memcmp(CFDataGetBytePtr(in1), data, length) == 0;
 357     });
 358 };
 359
 360 #define PKCS1v15_EMSA_VERIFY_ADAPTOR(name, oid) \
 361 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_Verify_RSASignatureDigestPKCS1v15 ## name( \
 362         SecKeyOperationContext *context, CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) { \
 363     return SecKeyRSAVerifyAdaptorCopyResult(context, in2, error, ^Boolean(CFDataRef decrypted) { \
 364         return ccrsa_emsa_pkcs1v15_verify(CFDataGetLength(decrypted), \
 365                                           (uint8_t *)CFDataGetBytePtr(decrypted), \
 366                                           CFDataGetLength(in1), CFDataGetBytePtr(in1), oid) == 0; \
 367     }); \
 368 }
 369
 370 PKCS1v15_EMSA_VERIFY_ADAPTOR(SHA1, ccoid_sha1)
 371 PKCS1v15_EMSA_VERIFY_ADAPTOR(SHA224, ccoid_sha224)
 372 PKCS1v15_EMSA_VERIFY_ADAPTOR(SHA256, ccoid_sha256)
 373 PKCS1v15_EMSA_VERIFY_ADAPTOR(SHA384, ccoid_sha384)
 374 PKCS1v15_EMSA_VERIFY_ADAPTOR(SHA512, ccoid_sha512)
 375 PKCS1v15_EMSA_VERIFY_ADAPTOR(Raw, NULL)
 376 PKCS1v15_EMSA_VERIFY_ADAPTOR(MD5, seckey_ccoid_md5)
 377
 378 #undef PKCS1v15_EMSA_VERIFY_ADAPTOR
 379
 380 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_EncryptDecrypt_RSAEncryptionRaw(SecKeyOperationContext *context,
 381                                                                                   CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) {
 382     CFArrayAppendValue(context->algorithm, kSecKeyAlgorithmRSAEncryptionRawCCUnit);
 383     return SecKeyAlgorithmAdaptorCopyBigEndianToCCUnit(context, in1, in2, error);
 384 }
 385
 386 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_EncryptDecrypt_RSAEncryptionRawCCUnit(SecKeyOperationContext *context,
 387                                                                                         CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) {
 388     CFArrayAppendValue(context->algorithm, kSecKeyAlgorithmRSAEncryptionRaw);
 389     return SecKeyAlgorithmAdaptorCopyCCUnitToBigEndian(context, in1, in2, error);
 390 }
 391
 392 static CFTypeRef SecKeyRSACopyEncryptedWithPadding(SecKeyOperationContext *context, const struct ccdigest_info *di,
 393                                                    CFDataRef in1, CFErrorRef *error) {
 394     CFArrayAppendValue(context->algorithm, kSecKeyAlgorithmRSAEncryptionRawCCUnit);
 395     size_t size = SecKeyGetBlockSize(context->key);
 396     size_t minSize = (di != NULL) ? di->output_size * 2 + 2 : 11;
 397     if (size < minSize) {
 398         return kCFNull;
 399     }
 400     if (context->mode == kSecKeyOperationModeCheckIfSupported) {
 401         return SecKeyRunAlgorithmAndCopyResult(context, NULL, NULL, error);
 402     }
 403
 404     __block CFTypeRef result = NULL;
 405     PerformWithCFDataBuffer(size, ^(uint8_t *buffer, CFDataRef data) {
 406         int err;
 407         if (di != NULL) {
 408             err = ccrsa_oaep_encode(di, ccrng_seckey, size, (cc_unit *)buffer,
 409                                     CFDataGetLength(in1), CFDataGetBytePtr(in1));
 410         } else {
 411             err = ccrsa_eme_pkcs1v15_encode(ccrng_seckey, size, (cc_unit *)buffer,
 412                                             CFDataGetLength(in1), CFDataGetBytePtr(in1));
 413         }
 414         require_noerr_action_quiet(err, out, SecError(errSecParam, error,
 415                                                       CFSTR("RSAencrypt wrong input size (err %d)"), err));
 416         require_quiet(result = SecKeyRunAlgorithmAndCopyResult(context, data, NULL, error), out);
 417         CFAssignRetained(result, SecKeyRSACopyCCUnitToBigEndian(result, SecKeyGetBlockSize(context->key)));
 418     out:;
 419     });
 420     return result;
 421 }
 422
 423 static CFTypeRef SecKeyRSACopyDecryptedWithPadding(SecKeyOperationContext *context, const struct ccdigest_info *di,
 424                                                    CFDataRef in1, CFErrorRef *error) {
 425     CFArrayAppendValue(context->algorithm, kSecKeyAlgorithmRSAEncryptionRawCCUnit);
 426     size_t minSize = (di != NULL) ? di->output_size * 2 + 2 : 11;
 427     if (SecKeyGetBlockSize(context->key) < minSize) {
 428         return kCFNull;
 429     }
 430     if (context->mode == kSecKeyOperationModeCheckIfSupported) {
 431         return SecKeyRunAlgorithmAndCopyResult(context, NULL, NULL, error);
 432     }
 433
 434     __block CFMutableDataRef result = NULL;
 435     PerformWithBigEndianToCCUnit(in1, SecKeyGetBlockSize(context->key), ^(CFDataRef ccunits) {
 436         CFDataRef cc_result = NULL;
 437         require_quiet(cc_result = SecKeyRunAlgorithmAndCopyResult(context, ccunits, NULL, error), out);
 438         size_t size = CFDataGetLength(cc_result);
 439         result = CFDataCreateMutableWithScratch(NULL, size);
 440         int err;
 441         if (di != NULL) {
 442             err = ccrsa_oaep_decode(di, &size, CFDataGetMutableBytePtr(result),
 443                                     CFDataGetLength(cc_result), (cc_unit *)CFDataGetBytePtr(cc_result));
 444         } else {
 445             err = ccrsa_eme_pkcs1v15_decode(&size, CFDataGetMutableBytePtr(result),
 446                                             CFDataGetLength(cc_result), (cc_unit *)CFDataGetBytePtr(cc_result));
 447         }
 448         require_noerr_action_quiet(err, out, (CFReleaseNull(result),
 449                                               SecError(errSecParam, error, CFSTR("RSAdecrypt wrong input (err %d)"), err)));
 450         CFDataSetLength(result, size);
 451     out:
 452         CFReleaseSafe(cc_result);
 453     });
 454     return result;
 455 }
 456
 457 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_Encrypt_RSAEncryptionPKCS1(SecKeyOperationContext *context,
 458                                                                              CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) {
 459     return SecKeyRSACopyEncryptedWithPadding(context, NULL, in1, error);
 460 }
 461
 462 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_Decrypt_RSAEncryptionPKCS1(SecKeyOperationContext *context,
 463                                                                              CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) {
 464     return SecKeyRSACopyDecryptedWithPadding(context, NULL, in1, error);
 465 }
 466
 467 #define RSA_OAEP_CRYPT_ADAPTOR(name, di) \
 468 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_Encrypt_RSAEncryptionOAEP ## name( \
 469         SecKeyOperationContext *context, CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) { \
 470     return SecKeyRSACopyEncryptedWithPadding(context, di, in1, error); \
 471 } \
 472 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_Decrypt_RSAEncryptionOAEP ## name( \
 473         SecKeyOperationContext *context, CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) { \
 474     return SecKeyRSACopyDecryptedWithPadding(context, di, in1, error); \
 475 }
 476
 477 RSA_OAEP_CRYPT_ADAPTOR(SHA1, ccsha1_di());
 478 RSA_OAEP_CRYPT_ADAPTOR(SHA224, ccsha224_di());
 479 RSA_OAEP_CRYPT_ADAPTOR(SHA256, ccsha256_di());
 480 RSA_OAEP_CRYPT_ADAPTOR(SHA384, ccsha384_di());
 481 RSA_OAEP_CRYPT_ADAPTOR(SHA512, ccsha512_di());
 482
 483 #undef RSA_OAEP_CRYPT_ADAPTOR
 484
 485 const SecKeyKeyExchangeParameter kSecKeyKeyExchangeParameterRequestedSize = CFSTR("requestedSize");
 486 const SecKeyKeyExchangeParameter kSecKeyKeyExchangeParameterSharedInfo = CFSTR("sharedInfo");
 487
 488 static CFTypeRef SecKeyECDHCopyX963Result(SecKeyOperationContext *context, const struct ccdigest_info *di,
 489                                           CFTypeRef in1, CFTypeRef params, CFErrorRef *error) {
 490     CFTypeRef result = NULL;
 491     require_quiet(result = SecKeyRunAlgorithmAndCopyResult(context, in1, NULL, error), out);
 492
 493     if (context->mode == kSecKeyOperationModePerform) {
 494         // Parse params.
 495         CFTypeRef value = NULL;
 496         CFIndex requestedSize = 0;
 497         require_action_quiet((value = CFDictionaryGetValue(params, kSecKeyKeyExchangeParameterRequestedSize)) != NULL
 498                              && CFGetTypeID(value) == CFNumberGetTypeID() &&
 499                              CFNumberGetValue(value, kCFNumberCFIndexType, &requestedSize), out,
 500                              SecError(errSecParam, error, CFSTR("kSecKeyKeyExchangeParameterRequestedSize is missing")));
 501         size_t sharedInfoLength = 0;
 502         const void *sharedInfo = NULL;
 503         if ((value = CFDictionaryGetValue(params, kSecKeyKeyExchangeParameterSharedInfo)) != NULL &&
 504             CFGetTypeID(value) == CFDataGetTypeID()) {
 505             sharedInfo = CFDataGetBytePtr(value);
 506             sharedInfoLength = CFDataGetLength(value);
 507         }
 508
 509         CFMutableDataRef kdfResult = CFDataCreateMutableWithScratch(kCFAllocatorDefault, requestedSize);
 510         int err = ccansikdf_x963(di, CFDataGetLength(result), CFDataGetBytePtr(result), sharedInfoLength, sharedInfo,
 511                                  requestedSize, CFDataGetMutableBytePtr(kdfResult));
 512         CFAssignRetained(result, kdfResult);
 513         require_noerr_action_quiet(err, out, (CFReleaseNull(result),
 514                                               SecError(errSecParam, error, CFSTR("ECDHKeyExchange wrong input (%d)"), err)));
 515     }
 516 out:
 517     return result;
 518 }
 519
 520 #define ECDH_X963_ADAPTOR(hashname, di, cofactor) \
 521 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_KeyExchange_ECDH ## cofactor ## X963 ## hashname( \
 522         SecKeyOperationContext *context, CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) { \
 523     CFArrayAppendValue(context->algorithm, kSecKeyAlgorithmECDHKeyExchange ## cofactor); \
 524     return SecKeyECDHCopyX963Result(context, di, in1, in2, error); \
 525 }
 526
 527 ECDH_X963_ADAPTOR(SHA1, ccsha1_di(), Standard)
 528 ECDH_X963_ADAPTOR(SHA224, ccsha224_di(), Standard)
 529 ECDH_X963_ADAPTOR(SHA256, ccsha256_di(), Standard)
 530 ECDH_X963_ADAPTOR(SHA384, ccsha384_di(), Standard)
 531 ECDH_X963_ADAPTOR(SHA512, ccsha512_di(), Standard)
 532 ECDH_X963_ADAPTOR(SHA1, ccsha1_di(), Cofactor)
 533 ECDH_X963_ADAPTOR(SHA224, ccsha224_di(), Cofactor)
 534 ECDH_X963_ADAPTOR(SHA256, ccsha256_di(), Cofactor)
 535 ECDH_X963_ADAPTOR(SHA384, ccsha384_di(), Cofactor)
 536 ECDH_X963_ADAPTOR(SHA512, ccsha512_di(), Cofactor)
 537
 538 #undef ECDH_X963_ADAPTOR
 539
 540 // Extract number value of either CFNumber or CFString.
 541 static CFIndex SecKeyGetCFIndexFromRef(CFTypeRef ref) {
 542     CFIndex result = 0;
 543     if (CFGetTypeID(ref) == CFNumberGetTypeID()) {
 544         if (!CFNumberGetValue(ref, kCFNumberCFIndexType, &result)) {
 545             result = 0;
 546         }
 547     } else if (CFGetTypeID(ref) == CFStringGetTypeID()) {
 548         result = CFStringGetIntValue(ref);
 549     }
 550     return result;
 551 }
 552
 553 typedef CFDataRef (*SecKeyECIESKeyExchangeCopyResult)(SecKeyOperationContext *context, SecKeyAlgorithm keyExchangeAlgorithm, bool encrypt, CFDataRef ephemeralPubKey, CFDataRef pubKey, CFErrorRef *error);
 554 typedef Boolean (*SecKeyECIESEncryptCopyResult)(CFDataRef keyExchangeResult, CFDataRef inData, CFMutableDataRef result, CFErrorRef *error);
 555 typedef CFDataRef SecKeyECIESDecryptCopyResult(CFDataRef keyExchangeResult, CFDataRef inData, CFErrorRef *error);
 556
 557 static CFTypeRef SecKeyECIESCopyEncryptedData(SecKeyOperationContext *context, SecKeyAlgorithm keyExchangeAlgorithm,
 558                                               SecKeyECIESKeyExchangeCopyResult keyExchangeCopyResult,
 559                                               SecKeyECIESEncryptCopyResult encryptCopyResult,
 560                                               CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) {
 561     CFDictionaryRef parameters = NULL;
 562     SecKeyRef ephemeralPrivateKey = NULL, ephemeralPublicKey = NULL;
 563     CFDataRef pubKeyData = NULL, ephemeralPubKeyData = NULL, keyExchangeResult = NULL;
 564     CFTypeRef result = NULL;
 565     SecKeyRef originalKey = context->key;
 566     CFMutableDataRef ciphertext = NULL;
 567
 568     require_action_quiet(parameters = SecKeyCopyAttributes(context->key), out,
 569                          SecError(errSecParam, error, CFSTR("Unable to export key parameters")));
 570     require_action_quiet(CFEqual(CFDictionaryGetValue(parameters, kSecAttrKeyType), kSecAttrKeyTypeECSECPrimeRandom), out, result = kCFNull);
 571     require_action_quiet(CFEqual(CFDictionaryGetValue(parameters, kSecAttrKeyClass), kSecAttrKeyClassPublic), out, result = kCFNull);
 572
 573     // Generate ephemeral key.
 574     require_quiet(pubKeyData = SecKeyCopyExternalRepresentation(context->key, error), out);
 575     CFAssignRetained(parameters, CFDictionaryCreateForCFTypes(kCFAllocatorDefault,
 576                                                               kSecAttrKeyType, CFDictionaryGetValue(parameters, kSecAttrKeyType),
 577                                                               kSecAttrKeySizeInBits, CFDictionaryGetValue(parameters, kSecAttrKeySizeInBits),
 578                                                               NULL));
 579     require_quiet(ephemeralPrivateKey = SecKeyCreateRandomKey(parameters, error), out);
 580     require_action_quiet(ephemeralPublicKey = SecKeyCopyPublicKey(ephemeralPrivateKey), out,
 581                          SecError(errSecParam, error, CFSTR("Unable to get public key from generated ECkey")));
 582     require_quiet(ephemeralPubKeyData = SecKeyCopyExternalRepresentation(ephemeralPublicKey, error), out);
 583
 584     context->key = ephemeralPrivateKey;
 585     require_quiet(keyExchangeResult = keyExchangeCopyResult(context, keyExchangeAlgorithm, true,
 586                                                             ephemeralPubKeyData, pubKeyData, error), out);
 587     if (context->mode == kSecKeyOperationModePerform) {
 588         // Encrypt input data using AES-GCM.
 589         ciphertext = CFDataCreateMutableCopy(kCFAllocatorDefault, 0, ephemeralPubKeyData);
 590         require_quiet(encryptCopyResult(keyExchangeResult, in1, ciphertext, error), out);
 591         result = CFRetain(ciphertext);
 592     } else {
 593         result = CFRetain(keyExchangeResult);
 594     }
 595
 596 out:
 597     CFReleaseSafe(parameters);
 598     CFReleaseSafe(ephemeralPrivateKey);
 599     CFReleaseSafe(ephemeralPublicKey);
 600     CFReleaseSafe(pubKeyData);
 601     CFReleaseSafe(ephemeralPubKeyData);
 602     CFReleaseSafe(keyExchangeResult);
 603     CFReleaseSafe(ciphertext);
 604     context->key = originalKey;
 605     return result;
 606 }
 607
 608 static CFTypeRef SecKeyECIESCopyDecryptedData(SecKeyOperationContext *context, SecKeyAlgorithm keyExchangeAlgorithm,
 609                                               SecKeyECIESKeyExchangeCopyResult keyExchangeCopyResult,
 610                                               SecKeyECIESDecryptCopyResult decryptCopyResult,
 611                                               CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) {
 612     CFTypeRef result = NULL;
 613     CFDictionaryRef parameters = NULL;
 614     CFDataRef ephemeralPubKeyData = NULL, keyExchangeResult = NULL, pubKeyData = NULL;
 615     SecKeyRef pubKey = NULL;
 616     CFDataRef ciphertext = NULL;
 617     const UInt8 *ciphertextBuffer = NULL;
 618     CFIndex keySize = 0;
 619
 620     require_action_quiet(parameters = SecKeyCopyAttributes(context->key), out,
 621                          SecError(errSecParam, error, CFSTR("Unable to export key parameters")));
 622     require_action_quiet(CFEqual(CFDictionaryGetValue(parameters, kSecAttrKeyType), kSecAttrKeyTypeECSECPrimeRandom), out, result = kCFNull);
 623     require_action_quiet(CFEqual(CFDictionaryGetValue(parameters, kSecAttrKeyClass), kSecAttrKeyClassPrivate), out, result = kCFNull);
 624
 625     if (context->mode == kSecKeyOperationModePerform) {
 626         // Extract ephemeral public key from the packet.
 627         keySize = (SecKeyGetCFIndexFromRef(CFDictionaryGetValue(parameters, kSecAttrKeySizeInBits)) + 7) / 8;
 628         require_action_quiet(CFDataGetLength(in1) >= keySize * 2 + 1, out,
 629                              SecError(errSecParam, error, CFSTR("%@: too small input packet for ECIES decrypt"), context->key));
 630         ciphertextBuffer = CFDataGetBytePtr(in1);
 631         ephemeralPubKeyData = CFDataCreateWithBytesNoCopy(kCFAllocatorDefault, ciphertextBuffer, keySize * 2 + 1, kCFAllocatorNull);
 632         ciphertextBuffer += keySize * 2 + 1;
 633
 634         require_action_quiet(pubKey = SecKeyCopyPublicKey(context->key), out,
 635                              SecError(errSecParam, error, CFSTR("%@: Unable to get public key"), context->key));
 636         require_quiet(pubKeyData = SecKeyCopyExternalRepresentation(pubKey, error), out);
 637     }
 638
 639     // Perform keyExchange operation.
 640     require_quiet(keyExchangeResult = keyExchangeCopyResult(context, keyExchangeAlgorithm, false,
 641                                                             ephemeralPubKeyData, pubKeyData, error), out);
 642     if (context->mode == kSecKeyOperationModePerform) {
 643         // Decrypt ciphertext using AES-GCM.
 644         ciphertext = CFDataCreateWithBytesNoCopy(kCFAllocatorDefault, ciphertextBuffer, CFDataGetLength(in1) - (keySize * 2 + 1),
 645                                                  kCFAllocatorNull);
 646         require_quiet(result = decryptCopyResult(keyExchangeResult, ciphertext, error), out);
 647     } else {
 648         result = CFRetain(keyExchangeResult);
 649     }
 650
 651 out:
 652     CFReleaseSafe(parameters);
 653     CFReleaseSafe(ephemeralPubKeyData);
 654     CFReleaseSafe(keyExchangeResult);
 655     CFReleaseSafe(pubKeyData);
 656     CFReleaseSafe(pubKey);
 657     CFReleaseSafe(ciphertext);
 658     return result;
 659 }
 660
 661 static const CFIndex kSecKeyIESTagLength = 16;
 662 static const UInt8 kSecKeyIESIV[16] = { 0 };
 663
 664 static CFDataRef SecKeyECIESKeyExchangeKDFX963CopyResult(SecKeyOperationContext *context, SecKeyAlgorithm keyExchangeAlgorithm,
 665                                                          bool encrypt, CFDataRef ephemeralPubKey, CFDataRef pubKey,
 666                                                          CFErrorRef *error) {
 667     CFDictionaryRef parameters = NULL;
 668     CFNumberRef keySizeRef = NULL;
 669     CFDataRef result = NULL;
 670
 671     CFArrayAppendValue(context->algorithm, keyExchangeAlgorithm);
 672     context->operation = kSecKeyOperationTypeKeyExchange;
 673
 674     if (context->mode == kSecKeyOperationModePerform) {
 675         // Use 128bit AES for EC keys <= 256bit, 256bit AES for larger keys.
 676         CFIndex keySize = ((CFDataGetLength(pubKey) - 1) / 2) * 8;
 677         keySize = (keySize > 256) ? (256 / 8) : (128 / 8);
 678
 679         // Generate shared secret using KDF.
 680         keySizeRef = CFNumberCreate(kCFAllocatorDefault, kCFNumberCFIndexType, &keySize);
 681         parameters = CFDictionaryCreateForCFTypes(kCFAllocatorDefault,
 682                                                   kSecKeyKeyExchangeParameterSharedInfo, ephemeralPubKey,
 683                                                   kSecKeyKeyExchangeParameterRequestedSize, keySizeRef,
 684                                                   NULL);
 685     }
 686
 687     result = SecKeyRunAlgorithmAndCopyResult(context, encrypt ? pubKey : ephemeralPubKey, parameters, error);
 688     CFReleaseSafe(parameters);
 689     CFReleaseSafe(keySizeRef);
 690     return result;
 691 }
 692
 693 static Boolean SecKeyECIESEncryptAESGCMCopyResult(CFDataRef keyExchangeResult, CFDataRef inData, CFMutableDataRef result,
 694                                                   CFErrorRef *error) {
 695     Boolean res = FALSE;
 696     CFIndex prefix = CFDataGetLength(result);
 697     CFDataSetLength(result, prefix + CFDataGetLength(inData) + kSecKeyIESTagLength);
 698     UInt8 *resultBuffer = CFDataGetMutableBytePtr(result) + prefix;
 699     UInt8 *tagBuffer = resultBuffer + CFDataGetLength(inData);
 700     require_action_quiet(ccgcm_one_shot(ccaes_gcm_encrypt_mode(),
 701                                         CFDataGetLength(keyExchangeResult), CFDataGetBytePtr(keyExchangeResult),
 702                                         sizeof(kSecKeyIESIV), kSecKeyIESIV,
 703                                         0, NULL,
 704                                         CFDataGetLength(inData), CFDataGetBytePtr(inData),
 705                                         resultBuffer, kSecKeyIESTagLength, tagBuffer) == 0, out,
 706                          SecError(errSecParam, error, CFSTR("ECIES: Failed to aes-gcm encrypt data")));
 707     res = TRUE;
 708 out:
 709     return res;
 710 }
 711
 712 static CFDataRef SecKeyECIESDecryptAESGCMCopyResult(CFDataRef keyExchangeResult, CFDataRef inData, CFErrorRef *error) {
 713     CFDataRef result = NULL;
 714     CFMutableDataRef plaintext = CFDataCreateMutableWithScratch(kCFAllocatorDefault, CFDataGetLength(inData) - kSecKeyIESTagLength);
 715     CFMutableDataRef tag = CFDataCreateMutableWithScratch(SecCFAllocatorZeroize(), kSecKeyIESTagLength);
 716     CFDataGetBytes(inData, CFRangeMake(CFDataGetLength(inData) - kSecKeyIESTagLength, kSecKeyIESTagLength),
 717                    CFDataGetMutableBytePtr(tag));
 718     require_action_quiet(ccgcm_one_shot(ccaes_gcm_decrypt_mode(),
 719                                         CFDataGetLength(keyExchangeResult), CFDataGetBytePtr(keyExchangeResult),
 720                                         sizeof(kSecKeyIESIV), kSecKeyIESIV,
 721                                         0, NULL,
 722                                         CFDataGetLength(plaintext), CFDataGetBytePtr(inData), CFDataGetMutableBytePtr(plaintext),
 723                                         kSecKeyIESTagLength, CFDataGetMutableBytePtr(tag)) == 0, out,
 724                          SecError(errSecParam, error, CFSTR("ECIES: Failed to aes-gcm decrypt data")));
 725     result = CFRetain(plaintext);
 726 out:
 727     CFReleaseSafe(plaintext);
 728     CFReleaseSafe(tag);
 729     return result;
 730 }
 731
 732 #define ECIES_X963_ADAPTOR(hashname, cofactor) \
 733 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_Encrypt_ECIES ## cofactor ## X963 ## hashname( \
 734         SecKeyOperationContext *context, CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) { \
 735     return SecKeyECIESCopyEncryptedData(context, kSecKeyAlgorithmECDHKeyExchange ## cofactor ## X963 ## hashname, \
 736          SecKeyECIESKeyExchangeKDFX963CopyResult, SecKeyECIESEncryptAESGCMCopyResult, in1, in2, error); \
 737 } \
 738 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_Decrypt_ECIES ## cofactor ## X963 ## hashname( \
 739         SecKeyOperationContext *context, CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) { \
 740     return SecKeyECIESCopyDecryptedData(context, kSecKeyAlgorithmECDHKeyExchange ## cofactor ## X963 ## hashname, \
 741         SecKeyECIESKeyExchangeKDFX963CopyResult, SecKeyECIESDecryptAESGCMCopyResult, in1, in2, error); \
 742 }
 743
 744 ECIES_X963_ADAPTOR(SHA1, Standard)
 745 ECIES_X963_ADAPTOR(SHA224, Standard)
 746 ECIES_X963_ADAPTOR(SHA256, Standard)
 747 ECIES_X963_ADAPTOR(SHA384, Standard)
 748 ECIES_X963_ADAPTOR(SHA512, Standard)
 749 ECIES_X963_ADAPTOR(SHA1, Cofactor)
 750 ECIES_X963_ADAPTOR(SHA224, Cofactor)
 751 ECIES_X963_ADAPTOR(SHA256, Cofactor)
 752 ECIES_X963_ADAPTOR(SHA384, Cofactor)
 753 ECIES_X963_ADAPTOR(SHA512, Cofactor)
 754
 755 #undef ECIES_X963_ADAPTOR
 756
 757 static CFDataRef SecKeyECIESKeyExchangeSHA2562PubKeysCopyResult(SecKeyOperationContext *context, SecKeyAlgorithm keyExchangeAlgorithm,
 758                                                                 bool encrypt, CFDataRef ephemeralPubKey, CFDataRef pubKey,
 759                                                                 CFErrorRef *error) {
 760     CFArrayAppendValue(context->algorithm, keyExchangeAlgorithm);
 761     context->operation = kSecKeyOperationTypeKeyExchange;
 762     CFMutableDataRef result = (CFMutableDataRef)SecKeyRunAlgorithmAndCopyResult(context, ephemeralPubKey, NULL, error);
 763     if (result != NULL && context->mode == kSecKeyOperationModePerform) {
 764         const struct ccdigest_info *di = ccsha256_di();
 765         ccdigest_di_decl(di, ctx);
 766         ccdigest_init(di, ctx);
 767         ccdigest_update(di, ctx, CFDataGetLength(result), CFDataGetBytePtr(result));
 768         ccdigest_update(di, ctx, CFDataGetLength(ephemeralPubKey), CFDataGetBytePtr(ephemeralPubKey));
 769         ccdigest_update(di, ctx, CFDataGetLength(pubKey), CFDataGetBytePtr(pubKey));
 770         CFAssignRetained(result, CFDataCreateMutableWithScratch(kCFAllocatorDefault, di->output_size));
 771         ccdigest_final(di, ctx, CFDataGetMutableBytePtr(result));
 772     }
 773     return result;
 774 }
 775
 776 static CFDataRef SecKeyECIESDecryptAESCBCCopyResult(CFDataRef keyExchangeResult, CFDataRef inData, CFErrorRef *error) {
 777     CFMutableDataRef result = CFDataCreateMutableWithScratch(kCFAllocatorDefault, CFDataGetLength(inData));
 778     cccbc_one_shot(ccaes_cbc_decrypt_mode(),
 779                    CFDataGetLength(keyExchangeResult), CFDataGetBytePtr(keyExchangeResult),
 780                    NULL, CFDataGetLength(keyExchangeResult) / CCAES_BLOCK_SIZE,
 781                    CFDataGetBytePtr(inData), CFDataGetMutableBytePtr(result));
 782     return result;
 783 }
 784
 785 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_Decrypt_ECIES_Standard_SHA256_2PubKeys(
 786         SecKeyOperationContext *context, CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) {
 787     return SecKeyECIESCopyDecryptedData(context, kSecKeyAlgorithmECDHKeyExchangeStandard,
 788                                         SecKeyECIESKeyExchangeSHA2562PubKeysCopyResult,
 789                                         SecKeyECIESDecryptAESCBCCopyResult,
 790                                         in1, in2, error);
 791 }
 792
 793 static CFTypeRef SecKeyRSAAESGCMCopyEncryptedData(SecKeyOperationContext *context, SecKeyAlgorithm keyWrapAlgorithm,
 794                                                   CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) {
 795     CFTypeRef result = NULL;
 796     CFDictionaryRef parameters = NULL;
 797     CFDataRef pubKeyData = NULL, wrappedKey = NULL, sessionKey = NULL;
 798     CFMutableDataRef ciphertext = NULL;
 799
 800     require_action_quiet(parameters = SecKeyCopyAttributes(context->key), out,
 801                          SecError(errSecParam, error, CFSTR("Unable to export key parameters")));
 802     require_action_quiet(CFEqual(CFDictionaryGetValue(parameters, kSecAttrKeyType), kSecAttrKeyTypeRSA), out, result = kCFNull);
 803     require_action_quiet(CFEqual(CFDictionaryGetValue(parameters, kSecAttrKeyClass), kSecAttrKeyClassPublic), out, result = kCFNull);
 804
 805     CFArrayAppendValue(context->algorithm, keyWrapAlgorithm);
 806     require_action_quiet(context->mode == kSecKeyOperationModePerform, out,
 807                          result = SecKeyRunAlgorithmAndCopyResult(context, NULL, NULL, error));
 808
 809     // Generate session key.  Use 128bit AES for RSA keys < 4096bit, 256bit AES for larger keys.
 810     require_quiet(pubKeyData = SecKeyCopyExternalRepresentation(context->key, error), out);
 811     CFIndex keySize = SecKeyGetCFIndexFromRef(CFDictionaryGetValue(parameters, kSecAttrKeySizeInBits));
 812     require_action_quiet(sessionKey = CFDataCreateWithRandomBytes((keySize >= 4096) ? (256 / 8) : (128 / 8)), out,
 813                          SecError(errSecParam, error, CFSTR("Failed to generate session key")));
 814
 815     // Encrypt session key using wrapping algorithm and store at the beginning of the result packet.
 816     require_action_quiet(wrappedKey = SecKeyRunAlgorithmAndCopyResult(context, sessionKey, NULL, error), out,
 817                          CFReleaseNull(result));
 818     ciphertext = CFDataCreateMutableWithScratch(kCFAllocatorDefault, CFDataGetLength(wrappedKey) + CFDataGetLength(in1) + kSecKeyIESTagLength);
 819     UInt8 *resultBuffer = CFDataGetMutableBytePtr(ciphertext);
 820     CFDataGetBytes(wrappedKey, CFRangeMake(0, CFDataGetLength(wrappedKey)), resultBuffer);
 821     resultBuffer += CFDataGetLength(wrappedKey);
 822
 823     // Encrypt input data using AES-GCM.
 824     UInt8 *tagBuffer = resultBuffer + CFDataGetLength(in1);
 825     require_action_quiet(ccgcm_one_shot(ccaes_gcm_encrypt_mode(),
 826                                         CFDataGetLength(sessionKey), CFDataGetBytePtr(sessionKey),
 827                                         sizeof(kSecKeyIESIV), kSecKeyIESIV,
 828                                         CFDataGetLength(pubKeyData), CFDataGetBytePtr(pubKeyData),
 829                                         CFDataGetLength(in1), CFDataGetBytePtr(in1), resultBuffer,
 830                                         kSecKeyIESTagLength, tagBuffer) == 0, out,
 831                          SecError(errSecParam, error, CFSTR("RSAWRAP: Failed to aes-gcm encrypt data")));
 832     result = CFRetain(ciphertext);
 833
 834 out:
 835     CFReleaseSafe(parameters);
 836     CFReleaseSafe(pubKeyData);
 837     CFReleaseSafe(wrappedKey);
 838     CFReleaseSafe(sessionKey);
 839     CFReleaseSafe(ciphertext);
 840     return result;
 841 }
 842
 843 static CFTypeRef SecKeyRSAAESGCMCopyDecryptedData(SecKeyOperationContext *context, SecKeyAlgorithm keyWrapAlgorithm,
 844                                                   CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) {
 845     CFTypeRef result = NULL;
 846     CFDictionaryRef parameters = NULL;
 847     CFMutableDataRef plaintext = NULL, tag = NULL;
 848     CFDataRef pubKeyData = NULL, sessionKey = NULL;
 849     SecKeyRef pubKey = NULL;
 850
 851     require_action_quiet(parameters = SecKeyCopyAttributes(context->key), out,
 852                          SecError(errSecParam, error, CFSTR("Unable to export key parameters")));
 853     require_action_quiet(CFEqual(CFDictionaryGetValue(parameters, kSecAttrKeyType), kSecAttrKeyTypeRSA), out, result = kCFNull);
 854     require_action_quiet(CFEqual(CFDictionaryGetValue(parameters, kSecAttrKeyClass), kSecAttrKeyClassPrivate), out, result = kCFNull);
 855
 856     CFArrayAppendValue(context->algorithm, keyWrapAlgorithm);
 857     require_action_quiet(context->mode == kSecKeyOperationModePerform, out,
 858                          result = SecKeyRunAlgorithmAndCopyResult(context, NULL, NULL, error));
 859
 860     // Extract encrypted session key.
 861     require_action_quiet(pubKey = SecKeyCopyPublicKey(context->key), out,
 862                          SecError(errSecParam, error, CFSTR("%@: unable to get public key"), context->key));
 863     require_quiet(pubKeyData = SecKeyCopyExternalRepresentation(pubKey, error), out);
 864
 865     CFIndex wrappedKeySize = SecKeyGetBlockSize(context->key);
 866     require_action_quiet(CFDataGetLength(in1) >= wrappedKeySize + kSecKeyIESTagLength, out,
 867                          SecError(errSecParam, error, CFSTR("RSA-WRAP too short input data")));
 868     sessionKey = CFDataCreateWithBytesNoCopy(kCFAllocatorDefault, CFDataGetBytePtr(in1), wrappedKeySize, kCFAllocatorNull);
 869
 870     // Decrypt session key.
 871     CFAssignRetained(sessionKey, SecKeyRunAlgorithmAndCopyResult(context, sessionKey, NULL, error));
 872     require_quiet(sessionKey, out);
 873     CFIndex keySize = SecKeyGetCFIndexFromRef(CFDictionaryGetValue(parameters, kSecAttrKeySizeInBits));
 874     keySize = (keySize >= 4096) ? (256 / 8) : (128 / 8);
 875     require_action_quiet(CFDataGetLength(sessionKey) == keySize, out,
 876                          SecError(errSecParam, error, CFSTR("RSA-WRAP bad ciphertext, unexpected session key size")));
 877
 878     // Decrypt ciphertext using AES-GCM.
 879     plaintext = CFDataCreateMutableWithScratch(SecCFAllocatorZeroize(), CFDataGetLength(in1) - wrappedKeySize - kSecKeyIESTagLength);
 880     tag = CFDataCreateMutableWithScratch(kCFAllocatorDefault, kSecKeyIESTagLength);
 881     CFDataGetBytes(in1, CFRangeMake(CFDataGetLength(in1) - kSecKeyIESTagLength, kSecKeyIESTagLength),
 882                    CFDataGetMutableBytePtr(tag));
 883     const UInt8 *ciphertextBuffer = CFDataGetBytePtr(in1);
 884     ciphertextBuffer += wrappedKeySize;
 885     require_action_quiet(ccgcm_one_shot(ccaes_gcm_decrypt_mode(),
 886                                         CFDataGetLength(sessionKey), CFDataGetBytePtr(sessionKey),
 887                                         sizeof(kSecKeyIESIV), kSecKeyIESIV,
 888                                         CFDataGetLength(pubKeyData), CFDataGetBytePtr(pubKeyData),
 889                                         CFDataGetLength(plaintext), ciphertextBuffer, CFDataGetMutableBytePtr(plaintext),
 890                                         kSecKeyIESTagLength, CFDataGetMutableBytePtr(tag)) == 0, out,
 891                          SecError(errSecParam, error, CFSTR("RSA-WRAP: Failed to aes-gcm decrypt data")));
 892     result = CFRetain(plaintext);
 893
 894 out:
 895     CFReleaseSafe(parameters);
 896     CFReleaseSafe(sessionKey);
 897     CFReleaseSafe(tag);
 898     CFReleaseSafe(pubKeyData);
 899     CFReleaseSafe(pubKey);
 900     CFReleaseSafe(plaintext);
 901     return result;
 902 }
 903
 904 #define RSA_OAEP_AESGCM_ADAPTOR(hashname) \
 905 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_Encrypt_RSAEncryptionOAEP ## hashname ## AESGCM( \
 906         SecKeyOperationContext *context, CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) { \
 907     return SecKeyRSAAESGCMCopyEncryptedData(context, kSecKeyAlgorithmRSAEncryptionOAEP ## hashname, in1, in2, error); \
 908 } \
 909 static CFTypeRef SecKeyAlgorithmAdaptorCopyResult_Decrypt_RSAEncryptionOAEP ## hashname ## AESGCM( \
 910         SecKeyOperationContext *context, CFTypeRef in1, CFTypeRef in2, CFErrorRef *error) { \
 911     return SecKeyRSAAESGCMCopyDecryptedData(context, kSecKeyAlgorithmRSAEncryptionOAEP ## hashname, in1, in2, error); \
 912 }
 913
 914 RSA_OAEP_AESGCM_ADAPTOR(SHA1)
 915 RSA_OAEP_AESGCM_ADAPTOR(SHA224)
 916 RSA_OAEP_AESGCM_ADAPTOR(SHA256)
 917 RSA_OAEP_AESGCM_ADAPTOR(SHA384)
 918 RSA_OAEP_AESGCM_ADAPTOR(SHA512)
 919
 920 #undef RSA_OAEP_AESGCM_ADAPTOR
 921
 922 SecKeyAlgorithmAdaptor SecKeyGetAlgorithmAdaptor(SecKeyOperationType operation, SecKeyAlgorithm algorithm) {
 923     static CFDictionaryRef adaptors[kSecKeyOperationTypeCount];
 924     static dispatch_once_t onceToken;
 925     dispatch_once(&onceToken, ^{
 926         const void *signKeys[] = {
 927             kSecKeyAlgorithmRSASignatureDigestPKCS1v15SHA1,
 928             kSecKeyAlgorithmRSASignatureDigestPKCS1v15SHA224,
 929             kSecKeyAlgorithmRSASignatureDigestPKCS1v15SHA256,
 930             kSecKeyAlgorithmRSASignatureDigestPKCS1v15SHA384,
 931             kSecKeyAlgorithmRSASignatureDigestPKCS1v15SHA512,
 932             kSecKeyAlgorithmRSASignatureDigestPKCS1v15Raw,
 933             kSecKeyAlgorithmRSASignatureDigestPKCS1v15MD5,
 934
 935             kSecKeyAlgorithmRSASignatureRaw,
 936             kSecKeyAlgorithmRSASignatureRawCCUnit,
 937
 938             kSecKeyAlgorithmRSASignatureMessagePKCS1v15SHA1,
 939             kSecKeyAlgorithmRSASignatureMessagePKCS1v15SHA224,
 940             kSecKeyAlgorithmRSASignatureMessagePKCS1v15SHA256,
 941             kSecKeyAlgorithmRSASignatureMessagePKCS1v15SHA384,
 942             kSecKeyAlgorithmRSASignatureMessagePKCS1v15SHA512,
 943             kSecKeyAlgorithmRSASignatureMessagePKCS1v15MD5,
 944
 945             kSecKeyAlgorithmECDSASignatureMessageX962SHA1,
 946             kSecKeyAlgorithmECDSASignatureMessageX962SHA224,
 947             kSecKeyAlgorithmECDSASignatureMessageX962SHA256,
 948             kSecKeyAlgorithmECDSASignatureMessageX962SHA384,
 949             kSecKeyAlgorithmECDSASignatureMessageX962SHA512,
 950
 951             kSecKeyAlgorithmECDSASignatureDigestX962SHA1,
 952             kSecKeyAlgorithmECDSASignatureDigestX962SHA224,
 953             kSecKeyAlgorithmECDSASignatureDigestX962SHA256,
 954             kSecKeyAlgorithmECDSASignatureDigestX962SHA384,
 955             kSecKeyAlgorithmECDSASignatureDigestX962SHA512,
 956         };
 957         const void *signValues[] = {
 958             SecKeyAlgorithmAdaptorCopyResult_Sign_RSASignatureDigestPKCS1v15SHA1,
 959             SecKeyAlgorithmAdaptorCopyResult_Sign_RSASignatureDigestPKCS1v15SHA224,
 960             SecKeyAlgorithmAdaptorCopyResult_Sign_RSASignatureDigestPKCS1v15SHA256,
 961             SecKeyAlgorithmAdaptorCopyResult_Sign_RSASignatureDigestPKCS1v15SHA384,
 962             SecKeyAlgorithmAdaptorCopyResult_Sign_RSASignatureDigestPKCS1v15SHA512,
 963             SecKeyAlgorithmAdaptorCopyResult_Sign_RSASignatureDigestPKCS1v15Raw,
 964             SecKeyAlgorithmAdaptorCopyResult_Sign_RSASignatureDigestPKCS1v15MD5,
 965
 966             SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureRaw,
 967             SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureRawCCUnit,
 968
 969             SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureMessagePKCS1v15SHA1,
 970             SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureMessagePKCS1v15SHA224,
 971             SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureMessagePKCS1v15SHA256,
 972             SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureMessagePKCS1v15SHA384,
 973             SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureMessagePKCS1v15SHA512,
 974             SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureMessagePKCS1v15MD5,
 975
 976             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureMessageX962SHA1,
 977             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureMessageX962SHA224,
 978             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureMessageX962SHA256,
 979             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureMessageX962SHA384,
 980             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureMessageX962SHA512,
 981
 982             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureDigestX962SHA1,
 983             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureDigestX962SHA224,
 984             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureDigestX962SHA256,
 985             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureDigestX962SHA384,
 986             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureDigestX962SHA512,
 987         };
 988         check_compile_time(array_size(signKeys) == array_size(signValues));
 989         adaptors[kSecKeyOperationTypeSign] = CFDictionaryCreate(kCFAllocatorDefault, signKeys, signValues,
 990                                                                 array_size(signKeys), &kCFTypeDictionaryKeyCallBacks, NULL);
 991
 992         const void *verifyKeys[] = {
 993             kSecKeyAlgorithmRSASignatureRaw,
 994
 995             kSecKeyAlgorithmRSASignatureDigestPKCS1v15SHA1,
 996             kSecKeyAlgorithmRSASignatureDigestPKCS1v15SHA224,
 997             kSecKeyAlgorithmRSASignatureDigestPKCS1v15SHA256,
 998             kSecKeyAlgorithmRSASignatureDigestPKCS1v15SHA384,
 999             kSecKeyAlgorithmRSASignatureDigestPKCS1v15SHA512,
1000             kSecKeyAlgorithmRSASignatureDigestPKCS1v15Raw,
1001             kSecKeyAlgorithmRSASignatureDigestPKCS1v15MD5,
1002
1003             kSecKeyAlgorithmRSASignatureMessagePKCS1v15SHA1,
1004             kSecKeyAlgorithmRSASignatureMessagePKCS1v15SHA224,
1005             kSecKeyAlgorithmRSASignatureMessagePKCS1v15SHA256,
1006             kSecKeyAlgorithmRSASignatureMessagePKCS1v15SHA384,
1007             kSecKeyAlgorithmRSASignatureMessagePKCS1v15SHA512,
1008             kSecKeyAlgorithmRSASignatureMessagePKCS1v15MD5,
1009
1010             kSecKeyAlgorithmECDSASignatureMessageX962SHA1,
1011             kSecKeyAlgorithmECDSASignatureMessageX962SHA224,
1012             kSecKeyAlgorithmECDSASignatureMessageX962SHA256,
1013             kSecKeyAlgorithmECDSASignatureMessageX962SHA384,
1014             kSecKeyAlgorithmECDSASignatureMessageX962SHA512,
1015
1016             kSecKeyAlgorithmECDSASignatureDigestX962SHA1,
1017             kSecKeyAlgorithmECDSASignatureDigestX962SHA224,
1018             kSecKeyAlgorithmECDSASignatureDigestX962SHA256,
1019             kSecKeyAlgorithmECDSASignatureDigestX962SHA384,
1020             kSecKeyAlgorithmECDSASignatureDigestX962SHA512,
1021         };
1022         const void *verifyValues[] = {
1023             SecKeyAlgorithmAdaptorCopyResult_Verify_RSASignatureRaw,
1024
1025             SecKeyAlgorithmAdaptorCopyResult_Verify_RSASignatureDigestPKCS1v15SHA1,
1026             SecKeyAlgorithmAdaptorCopyResult_Verify_RSASignatureDigestPKCS1v15SHA224,
1027             SecKeyAlgorithmAdaptorCopyResult_Verify_RSASignatureDigestPKCS1v15SHA256,
1028             SecKeyAlgorithmAdaptorCopyResult_Verify_RSASignatureDigestPKCS1v15SHA384,
1029             SecKeyAlgorithmAdaptorCopyResult_Verify_RSASignatureDigestPKCS1v15SHA512,
1030             SecKeyAlgorithmAdaptorCopyResult_Verify_RSASignatureDigestPKCS1v15Raw,
1031             SecKeyAlgorithmAdaptorCopyResult_Verify_RSASignatureDigestPKCS1v15MD5,
1032
1033             SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureMessagePKCS1v15SHA1,
1034             SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureMessagePKCS1v15SHA224,
1035             SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureMessagePKCS1v15SHA256,
1036             SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureMessagePKCS1v15SHA384,
1037             SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureMessagePKCS1v15SHA512,
1038             SecKeyAlgorithmAdaptorCopyResult_SignVerify_RSASignatureMessagePKCS1v15MD5,
1039
1040             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureMessageX962SHA1,
1041             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureMessageX962SHA224,
1042             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureMessageX962SHA256,
1043             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureMessageX962SHA384,
1044             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureMessageX962SHA512,
1045
1046             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureDigestX962SHA1,
1047             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureDigestX962SHA224,
1048             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureDigestX962SHA256,
1049             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureDigestX962SHA384,
1050             SecKeyAlgorithmAdaptorCopyResult_SignVerify_ECDSASignatureDigestX962SHA512,
1051         };
1052         check_compile_time(array_size(verifyKeys) == array_size(verifyValues));
1053         adaptors[kSecKeyOperationTypeVerify] = CFDictionaryCreate(kCFAllocatorDefault, verifyKeys, verifyValues,
1054                                                                   array_size(verifyKeys), &kCFTypeDictionaryKeyCallBacks, NULL);
1055
1056         const void *encryptKeys[] = {
1057             kSecKeyAlgorithmRSAEncryptionRaw,
1058             kSecKeyAlgorithmRSAEncryptionRawCCUnit,
1059
1060             kSecKeyAlgorithmRSAEncryptionPKCS1,
1061             kSecKeyAlgorithmRSAEncryptionOAEPSHA1,
1062             kSecKeyAlgorithmRSAEncryptionOAEPSHA224,
1063             kSecKeyAlgorithmRSAEncryptionOAEPSHA256,
1064             kSecKeyAlgorithmRSAEncryptionOAEPSHA384,
1065             kSecKeyAlgorithmRSAEncryptionOAEPSHA512,
1066
1067             kSecKeyAlgorithmRSAEncryptionOAEPSHA1AESGCM,
1068             kSecKeyAlgorithmRSAEncryptionOAEPSHA224AESGCM,
1069             kSecKeyAlgorithmRSAEncryptionOAEPSHA256AESGCM,
1070             kSecKeyAlgorithmRSAEncryptionOAEPSHA384AESGCM,
1071             kSecKeyAlgorithmRSAEncryptionOAEPSHA512AESGCM,
1072
1073             kSecKeyAlgorithmECIESEncryptionStandardX963SHA1AESGCM,
1074             kSecKeyAlgorithmECIESEncryptionStandardX963SHA224AESGCM,
1075             kSecKeyAlgorithmECIESEncryptionStandardX963SHA256AESGCM,
1076             kSecKeyAlgorithmECIESEncryptionStandardX963SHA384AESGCM,
1077             kSecKeyAlgorithmECIESEncryptionStandardX963SHA512AESGCM,
1078
1079             kSecKeyAlgorithmECIESEncryptionCofactorX963SHA1AESGCM,
1080             kSecKeyAlgorithmECIESEncryptionCofactorX963SHA224AESGCM,
1081             kSecKeyAlgorithmECIESEncryptionCofactorX963SHA256AESGCM,
1082             kSecKeyAlgorithmECIESEncryptionCofactorX963SHA384AESGCM,
1083             kSecKeyAlgorithmECIESEncryptionCofactorX963SHA512AESGCM,
1084         };
1085         const void *encryptValues[] = {
1086             SecKeyAlgorithmAdaptorCopyResult_EncryptDecrypt_RSAEncryptionRaw,
1087             SecKeyAlgorithmAdaptorCopyResult_EncryptDecrypt_RSAEncryptionRawCCUnit,
1088
1089             SecKeyAlgorithmAdaptorCopyResult_Encrypt_RSAEncryptionPKCS1,
1090             SecKeyAlgorithmAdaptorCopyResult_Encrypt_RSAEncryptionOAEPSHA1,
1091             SecKeyAlgorithmAdaptorCopyResult_Encrypt_RSAEncryptionOAEPSHA224,
1092             SecKeyAlgorithmAdaptorCopyResult_Encrypt_RSAEncryptionOAEPSHA256,
1093             SecKeyAlgorithmAdaptorCopyResult_Encrypt_RSAEncryptionOAEPSHA384,
1094             SecKeyAlgorithmAdaptorCopyResult_Encrypt_RSAEncryptionOAEPSHA512,
1095
1096             SecKeyAlgorithmAdaptorCopyResult_Encrypt_RSAEncryptionOAEPSHA1AESGCM,
1097             SecKeyAlgorithmAdaptorCopyResult_Encrypt_RSAEncryptionOAEPSHA224AESGCM,
1098             SecKeyAlgorithmAdaptorCopyResult_Encrypt_RSAEncryptionOAEPSHA256AESGCM,
1099             SecKeyAlgorithmAdaptorCopyResult_Encrypt_RSAEncryptionOAEPSHA384AESGCM,
1100             SecKeyAlgorithmAdaptorCopyResult_Encrypt_RSAEncryptionOAEPSHA512AESGCM,
1101
1102             SecKeyAlgorithmAdaptorCopyResult_Encrypt_ECIESStandardX963SHA1,
1103             SecKeyAlgorithmAdaptorCopyResult_Encrypt_ECIESStandardX963SHA224,
1104             SecKeyAlgorithmAdaptorCopyResult_Encrypt_ECIESStandardX963SHA256,
1105             SecKeyAlgorithmAdaptorCopyResult_Encrypt_ECIESStandardX963SHA384,
1106             SecKeyAlgorithmAdaptorCopyResult_Encrypt_ECIESStandardX963SHA512,
1107
1108             SecKeyAlgorithmAdaptorCopyResult_Encrypt_ECIESCofactorX963SHA1,
1109             SecKeyAlgorithmAdaptorCopyResult_Encrypt_ECIESCofactorX963SHA224,
1110             SecKeyAlgorithmAdaptorCopyResult_Encrypt_ECIESCofactorX963SHA256,
1111             SecKeyAlgorithmAdaptorCopyResult_Encrypt_ECIESCofactorX963SHA384,
1112             SecKeyAlgorithmAdaptorCopyResult_Encrypt_ECIESCofactorX963SHA512,
1113         };
1114         check_compile_time(array_size(encryptKeys) == array_size(encryptValues));
1115         adaptors[kSecKeyOperationTypeEncrypt] = CFDictionaryCreate(kCFAllocatorDefault, encryptKeys, encryptValues,
1116                                                                    array_size(encryptKeys), &kCFTypeDictionaryKeyCallBacks, NULL);
1117
1118         const void *decryptKeys[] = {
1119             kSecKeyAlgorithmRSAEncryptionRaw,
1120             kSecKeyAlgorithmRSAEncryptionRawCCUnit,
1121
1122             kSecKeyAlgorithmRSAEncryptionPKCS1,
1123             kSecKeyAlgorithmRSAEncryptionOAEPSHA1,
1124             kSecKeyAlgorithmRSAEncryptionOAEPSHA224,
1125             kSecKeyAlgorithmRSAEncryptionOAEPSHA256,
1126             kSecKeyAlgorithmRSAEncryptionOAEPSHA384,
1127             kSecKeyAlgorithmRSAEncryptionOAEPSHA512,
1128
1129             kSecKeyAlgorithmRSAEncryptionOAEPSHA1AESGCM,
1130             kSecKeyAlgorithmRSAEncryptionOAEPSHA224AESGCM,
1131             kSecKeyAlgorithmRSAEncryptionOAEPSHA256AESGCM,
1132             kSecKeyAlgorithmRSAEncryptionOAEPSHA384AESGCM,
1133             kSecKeyAlgorithmRSAEncryptionOAEPSHA512AESGCM,
1134
1135             kSecKeyAlgorithmECIESEncryptionStandardX963SHA1AESGCM,
1136             kSecKeyAlgorithmECIESEncryptionStandardX963SHA224AESGCM,
1137             kSecKeyAlgorithmECIESEncryptionStandardX963SHA256AESGCM,
1138             kSecKeyAlgorithmECIESEncryptionStandardX963SHA384AESGCM,
1139             kSecKeyAlgorithmECIESEncryptionStandardX963SHA512AESGCM,
1140
1141             kSecKeyAlgorithmECIESEncryptionCofactorX963SHA1AESGCM,
1142             kSecKeyAlgorithmECIESEncryptionCofactorX963SHA224AESGCM,
1143             kSecKeyAlgorithmECIESEncryptionCofactorX963SHA256AESGCM,
1144             kSecKeyAlgorithmECIESEncryptionCofactorX963SHA384AESGCM,
1145             kSecKeyAlgorithmECIESEncryptionCofactorX963SHA512AESGCM,
1146
1147             kSecKeyAlgorithmECIESEncryptionAKSSmartCard,
1148         };
1149         const void *decryptValues[] = {
1150             SecKeyAlgorithmAdaptorCopyResult_EncryptDecrypt_RSAEncryptionRaw,
1151             SecKeyAlgorithmAdaptorCopyResult_EncryptDecrypt_RSAEncryptionRawCCUnit,
1152
1153             SecKeyAlgorithmAdaptorCopyResult_Decrypt_RSAEncryptionPKCS1,
1154             SecKeyAlgorithmAdaptorCopyResult_Decrypt_RSAEncryptionOAEPSHA1,
1155             SecKeyAlgorithmAdaptorCopyResult_Decrypt_RSAEncryptionOAEPSHA224,
1156             SecKeyAlgorithmAdaptorCopyResult_Decrypt_RSAEncryptionOAEPSHA256,
1157             SecKeyAlgorithmAdaptorCopyResult_Decrypt_RSAEncryptionOAEPSHA384,
1158             SecKeyAlgorithmAdaptorCopyResult_Decrypt_RSAEncryptionOAEPSHA512,
1159
1160             SecKeyAlgorithmAdaptorCopyResult_Decrypt_RSAEncryptionOAEPSHA1AESGCM,
1161             SecKeyAlgorithmAdaptorCopyResult_Decrypt_RSAEncryptionOAEPSHA224AESGCM,
1162             SecKeyAlgorithmAdaptorCopyResult_Decrypt_RSAEncryptionOAEPSHA256AESGCM,
1163             SecKeyAlgorithmAdaptorCopyResult_Decrypt_RSAEncryptionOAEPSHA384AESGCM,
1164             SecKeyAlgorithmAdaptorCopyResult_Decrypt_RSAEncryptionOAEPSHA512AESGCM,
1165
1166             SecKeyAlgorithmAdaptorCopyResult_Decrypt_ECIESStandardX963SHA1,
1167             SecKeyAlgorithmAdaptorCopyResult_Decrypt_ECIESStandardX963SHA224,
1168             SecKeyAlgorithmAdaptorCopyResult_Decrypt_ECIESStandardX963SHA256,
1169             SecKeyAlgorithmAdaptorCopyResult_Decrypt_ECIESStandardX963SHA384,
1170             SecKeyAlgorithmAdaptorCopyResult_Decrypt_ECIESStandardX963SHA512,
1171
1172             SecKeyAlgorithmAdaptorCopyResult_Decrypt_ECIESCofactorX963SHA1,
1173             SecKeyAlgorithmAdaptorCopyResult_Decrypt_ECIESCofactorX963SHA224,
1174             SecKeyAlgorithmAdaptorCopyResult_Decrypt_ECIESCofactorX963SHA256,
1175             SecKeyAlgorithmAdaptorCopyResult_Decrypt_ECIESCofactorX963SHA384,
1176             SecKeyAlgorithmAdaptorCopyResult_Decrypt_ECIESCofactorX963SHA512,
1177
1178             SecKeyAlgorithmAdaptorCopyResult_Decrypt_ECIES_Standard_SHA256_2PubKeys,
1179         };
1180         check_compile_time(array_size(decryptKeys) == array_size(decryptValues));
1181         adaptors[kSecKeyOperationTypeDecrypt] = CFDictionaryCreate(kCFAllocatorDefault, decryptKeys, decryptValues,
1182                                                                    array_size(decryptKeys), &kCFTypeDictionaryKeyCallBacks, NULL);
1183
1184         const void *keyExchangeKeys[] = {
1185             kSecKeyAlgorithmECDHKeyExchangeStandardX963SHA1,
1186             kSecKeyAlgorithmECDHKeyExchangeStandardX963SHA224,
1187             kSecKeyAlgorithmECDHKeyExchangeStandardX963SHA256,
1188             kSecKeyAlgorithmECDHKeyExchangeStandardX963SHA384,
1189             kSecKeyAlgorithmECDHKeyExchangeStandardX963SHA512,
1190
1191             kSecKeyAlgorithmECDHKeyExchangeCofactorX963SHA1,
1192             kSecKeyAlgorithmECDHKeyExchangeCofactorX963SHA224,
1193             kSecKeyAlgorithmECDHKeyExchangeCofactorX963SHA256,
1194             kSecKeyAlgorithmECDHKeyExchangeCofactorX963SHA384,
1195             kSecKeyAlgorithmECDHKeyExchangeCofactorX963SHA512,
1196         };
1197         const void *keyExchangeValues[] = {
1198
1199             SecKeyAlgorithmAdaptorCopyResult_KeyExchange_ECDHStandardX963SHA1,
1200             SecKeyAlgorithmAdaptorCopyResult_KeyExchange_ECDHStandardX963SHA224,
1201             SecKeyAlgorithmAdaptorCopyResult_KeyExchange_ECDHStandardX963SHA256,
1202             SecKeyAlgorithmAdaptorCopyResult_KeyExchange_ECDHStandardX963SHA384,
1203             SecKeyAlgorithmAdaptorCopyResult_KeyExchange_ECDHStandardX963SHA512,
1204
1205             SecKeyAlgorithmAdaptorCopyResult_KeyExchange_ECDHCofactorX963SHA1,
1206             SecKeyAlgorithmAdaptorCopyResult_KeyExchange_ECDHCofactorX963SHA224,
1207             SecKeyAlgorithmAdaptorCopyResult_KeyExchange_ECDHCofactorX963SHA256,
1208             SecKeyAlgorithmAdaptorCopyResult_KeyExchange_ECDHCofactorX963SHA384,
1209             SecKeyAlgorithmAdaptorCopyResult_KeyExchange_ECDHCofactorX963SHA512,
1210         };
1211         check_compile_time(array_size(keyExchangeKeys) == array_size(keyExchangeKeys));
1212         adaptors[kSecKeyOperationTypeKeyExchange] = CFDictionaryCreate(kCFAllocatorDefault, keyExchangeKeys, keyExchangeValues,
1213                                                                        array_size(keyExchangeKeys), &kCFTypeDictionaryKeyCallBacks, NULL);
1214     });
1215
1216     return CFDictionaryGetValue(adaptors[operation], algorithm);
1217 }