cdsa/cssm/oidsalg.c

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 /*
  20  * oidsalg.c - OIDs defining crypto algorithms
  21  */
  22
  23 #include <Security/oidsbase.h>
  24 #include <Security/cssmtype.h>
  25 #include <Security/cssmapple.h>
  26 #include <string.h>
  27
  28 static const uint8
  29         OID_MD2[]               = { OID_RSA_HASH, 2 },
  30         OID_MD4[]                       = { OID_RSA_HASH, 4 },
  31         OID_MD5[]                       = { OID_RSA_HASH, 5 },
  32         OID_RSAEncryption[]             = { OID_PKCS_1, 1 },
  33         OID_MD2WithRSA[]                = { OID_PKCS_1, 2 },
  34         OID_MD4WithRSA[]                = { OID_PKCS_1, 3 },
  35         OID_MD5WithRSA[]                = { OID_PKCS_1, 4 },
  36         OID_SHA1WithRSA[]               = { OID_PKCS_1, 5 },
  37         OID_PKCS_3_ARC[]                = { OID_PKCS_3 },
  38         OID_DHKeyAgreement[]    = { OID_PKCS_3, 1 },
  39         /* BSAFE-specific DSA */
  40         OID_OIW_DSA[]                   = { OID_OIW_ALGORITHM, 12  },
  41         OID_OIW_DSAWithSHA1[]   = { OID_OIW_ALGORITHM, 27  },
  42         /* DSA from CMS */
  43         OID_CMS_DSA[]                   = { 0x2A, 0x86, 0x48, 0xCE, 0x38, 4, 1 },
  44         OID_CMS_DSAWithSHA1[]   = { 0x2A, 0x86, 0x48, 0xCE, 0x38, 4, 3 },
  45         /* DSA from JDK 1.1 */
  46         OID_JDK_DSA[]                   = { 0x2B, 0x0E, 0x03, 0x02, 0x0c },
  47         OID_JDK_DSAWithSHA1[]   = { 0x2B, 0x0E, 0x03, 0x02, 0x0D },
  48
  49         OID_OIW_SHA1[]                  = { OID_OIW_ALGORITHM, 26  },
  50         OID_OIW_RSAWithSHA1[]   = { OID_OIW_ALGORITHM, 29  },
  51
  52         /* ANSI X9.42 */
  53         OID_ANSI_DH_PUB_NUMBER[]= { OID_ANSI_X9_42, 1 },
  54         OID_ANSI_DH_STATIC[]    = { OID_ANSI_X9_42_SCHEME, 1 },
  55         OID_ANSI_DH_EPHEM[]     = { OID_ANSI_X9_42_SCHEME, 2 },
  56         OID_ANSI_DH_ONE_FLOW[]  = { OID_ANSI_X9_42_SCHEME, 3 },
  57         OID_ANSI_DH_HYBRID1[]   = { OID_ANSI_X9_42_SCHEME, 4 },
  58         OID_ANSI_DH_HYBRID2[]   = { OID_ANSI_X9_42_SCHEME, 5 },
  59         OID_ANSI_DH_HYBRID_ONEFLOW[]    = { OID_ANSI_X9_42_SCHEME, 6 },
  60         /* sic - enumerated in reverse order in the spec */
  61         OID_ANSI_MQV1[]                 = { OID_ANSI_X9_42_SCHEME, 8 },
  62         OID_ANSI_MQV2[]                 = { OID_ANSI_X9_42_SCHEME, 7 },
  63
  64         OID_ANSI_DH_STATIC_SHA1[]       = { OID_ANSI_X9_42_NAMED_SCHEME, 1 },
  65         OID_ANSI_DH_EPHEM_SHA1[]        = { OID_ANSI_X9_42_NAMED_SCHEME, 2 },
  66         OID_ANSI_DH_ONE_FLOW_SHA1[] = { OID_ANSI_X9_42_NAMED_SCHEME, 3 },
  67         OID_ANSI_DH_HYBRID1_SHA1[]      = { OID_ANSI_X9_42_NAMED_SCHEME, 4 },
  68         OID_ANSI_DH_HYBRID2_SHA1[]      = { OID_ANSI_X9_42_NAMED_SCHEME, 5 },
  69         OID_ANSI_DH_HYBRID_ONEFLOW_SHA1[]       = { OID_ANSI_X9_42_NAMED_SCHEME, 6 },
  70         /* sic - enumerated in reverse order in the spec */
  71         OID_ANSI_MQV1_SHA1[]            = { OID_ANSI_X9_42_NAMED_SCHEME, 8 },
  72         OID_ANSI_MQV2_SHA1[]            = { OID_ANSI_X9_42_NAMED_SCHEME, 7 };
  73
  74 const CSSM_OID
  75         CSSMOID_MD2                     = {OID_RSA_HASH_LENGTH+1, (uint8 *)OID_MD2},
  76         CSSMOID_MD4                     = {OID_RSA_HASH_LENGTH+1, (uint8 *)OID_MD4},
  77         CSSMOID_MD5                     = {OID_RSA_HASH_LENGTH+1, (uint8 *)OID_MD5},
  78         CSSMOID_RSA                     = {OID_PKCS_1_LENGTH+1, (uint8 *)OID_RSAEncryption},
  79         CSSMOID_MD2WithRSA      = {OID_PKCS_1_LENGTH+1, (uint8 *)OID_MD2WithRSA},
  80         CSSMOID_MD4WithRSA      = {OID_PKCS_1_LENGTH+1, (uint8 *)OID_MD4WithRSA},
  81         CSSMOID_MD5WithRSA      = {OID_PKCS_1_LENGTH+1, (uint8 *)OID_MD5WithRSA},
  82         CSSMOID_SHA1WithRSA     = {OID_PKCS_1_LENGTH+1, (uint8 *)OID_SHA1WithRSA},
  83         CSSMOID_PKCS3                   = {OID_PKCS_3_LENGTH,   (uint8 *)OID_PKCS_3_ARC},
  84         CSSMOID_DH                      = {OID_PKCS_3_LENGTH+1, (uint8 *)OID_DHKeyAgreement},
  85         CSSMOID_DSA                     = {OID_OIW_ALGORITHM_LENGTH+1, (uint8 *)OID_OIW_DSA},
  86         CSSMOID_DSA_CMS                 = { 7, (uint8 *)OID_CMS_DSA},
  87         CSSMOID_DSA_JDK                 = { 5, (uint8 *)OID_JDK_DSA},
  88         CSSMOID_SHA1WithDSA     = {OID_OIW_ALGORITHM_LENGTH+1, (uint8 *)OID_OIW_DSAWithSHA1},
  89         CSSMOID_SHA1WithDSA_CMS = { 7, (uint8 *)OID_CMS_DSAWithSHA1},
  90         CSSMOID_SHA1WithDSA_JDK = { 5, (uint8 *)OID_JDK_DSAWithSHA1},
  91         CSSMOID_SHA1                    = {OID_OIW_ALGORITHM_LENGTH+1, (uint8 *)OID_OIW_SHA1},
  92         CSSMOID_SHA1WithRSA_OIW = {OID_OIW_ALGORITHM_LENGTH+1, (uint8 *)OID_OIW_RSAWithSHA1},
  93         CSSMOID_ANSI_DH_PUB_NUMBER = {OID_ANSI_X9_42_LEN + 1, (uint8 *)OID_ANSI_DH_PUB_NUMBER},
  94         CSSMOID_ANSI_DH_STATIC     = {OID_ANSI_X9_42_SCHEME_LEN + 1, (uint8 *)OID_ANSI_DH_STATIC},
  95         CSSMOID_ANSI_DH_ONE_FLOW   = {OID_ANSI_X9_42_SCHEME_LEN + 1, (uint8 *)OID_ANSI_DH_ONE_FLOW},
  96         CSSMOID_ANSI_DH_EPHEM      = {OID_ANSI_X9_42_SCHEME_LEN + 1, (uint8 *)OID_ANSI_DH_EPHEM},
  97         CSSMOID_ANSI_DH_HYBRID1    = {OID_ANSI_X9_42_SCHEME_LEN + 1, (uint8 *)OID_ANSI_DH_HYBRID1},
  98         CSSMOID_ANSI_DH_HYBRID2    = {OID_ANSI_X9_42_SCHEME_LEN + 1, (uint8 *)OID_ANSI_DH_HYBRID2},
  99         CSSMOID_ANSI_DH_HYBRID_ONEFLOW = {OID_ANSI_X9_42_SCHEME_LEN + 1,
 100                                                                           (uint8 *)OID_ANSI_DH_HYBRID_ONEFLOW},
 101         CSSMOID_ANSI_DH_MQV1       = {OID_ANSI_X9_42_SCHEME_LEN + 1, (uint8 *)OID_ANSI_MQV1},
 102         CSSMOID_ANSI_DH_MQV2       = {OID_ANSI_X9_42_SCHEME_LEN + 1, (uint8 *)OID_ANSI_MQV2},
 103         CSSMOID_ANSI_DH_STATIC_SHA1     = {OID_ANSI_X9_42_NAMED_SCHEME_LEN + 1,
 104                                                                                 (uint8 *)OID_ANSI_DH_STATIC_SHA1},
 105         CSSMOID_ANSI_DH_ONE_FLOW_SHA1   = {OID_ANSI_X9_42_NAMED_SCHEME_LEN + 1,
 106                                                                                 (uint8 *)OID_ANSI_DH_ONE_FLOW_SHA1},
 107         CSSMOID_ANSI_DH_EPHEM_SHA1              = {OID_ANSI_X9_42_NAMED_SCHEME_LEN + 1,
 108                                                                                 (uint8 *)OID_ANSI_DH_EPHEM_SHA1},
 109         CSSMOID_ANSI_DH_HYBRID1_SHA1    = {OID_ANSI_X9_42_NAMED_SCHEME_LEN + 1,
 110                                                                                 (uint8 *)OID_ANSI_DH_HYBRID1_SHA1},
 111         CSSMOID_ANSI_DH_HYBRID2_SHA1    = {OID_ANSI_X9_42_NAMED_SCHEME_LEN + 1,
 112                                                                                 (uint8 *)OID_ANSI_DH_HYBRID2_SHA1},
 113         CSSMOID_ANSI_DH_HYBRID_ONEFLOW_SHA1 = {OID_ANSI_X9_42_NAMED_SCHEME_LEN + 1,
 114                                                                                 (uint8 *)OID_ANSI_DH_HYBRID_ONEFLOW_SHA1},
 115         CSSMOID_ANSI_MQV1_SHA1                  = {OID_ANSI_X9_42_NAMED_SCHEME_LEN + 1,
 116                                                                                 (uint8 *)OID_ANSI_MQV1_SHA1},
 117         CSSMOID_ANSI_MQV2_SHA1                  = {OID_ANSI_X9_42_NAMED_SCHEME_LEN + 1,
 118                                                                                 (uint8 *)OID_ANSI_MQV2_SHA1};
 119
 120
 121 /*      iSignTP OBJECT IDENTIFIER ::=
 122  *              { appleTrustPolicy 1 }
 123  *      { 1 2 840 113635 100 1 1 }
 124  *
 125  * BER =  06 09 2A 86 48 86 F7 63 64 01 01
 126  */
 127 static const uint8
 128 APPLE_TP_ISIGN[]                = {APPLE_TP_OID, 1},
 129
 130 /*      AppleX509Basic OBJECT IDENTIFIER ::=
 131  *              { appleTrustPolicy 2 }
 132  *      { 1 2 840 113635 100 1 2 }
 133  *
 134  * BER =  06 09 2A 86 48 86 F7 63 64 01 01
 135  */
 136 APPLE_TP_X509_BASIC[]   = {APPLE_TP_OID, 2},
 137
 138 /* AppleSSLPolicy := {appleTrustPolicy 3 } */
 139 APPLE_TP_SSL[]                  = {APPLE_TP_OID, 3},
 140
 141 /* AppleLocalCertGenPolicy := {appleTrustPolicy 4 } */
 142 APPLE_TP_LOCAL_CERT_GEN[]       = {APPLE_TP_OID, 4},
 143
 144 /* AppleCSRGenPolicy := {appleTrustPolicy 5 } */
 145 APPLE_TP_CSR_GEN[]                      = {APPLE_TP_OID, 5},
 146
 147 /* Apple CRL-based revocation policy := {appleTrustPolicy 6 } */
 148 APPLE_TP_REVOCATION_CRL[]       = {APPLE_TP_OID, 6},
 149
 150 /* Apple OCSP-based revocation policy := {appleTrustPolicy 7 } */
 151 APPLE_TP_REVOCATION_OCSP[]      = {APPLE_TP_OID, 7},
 152
 153 /* Apple S/MIME trust policy := {appleTrustPolicy 8 } */
 154 APPLE_TP_SMIME[]                        = {APPLE_TP_OID, 8},
 155
 156 /* Apple EAP trust policy := {appleTrustPolicy 9 } */
 157 APPLE_TP_EAP[]                          = {APPLE_TP_OID, 9},
 158
 159 /*
 160  *      fee OBJECT IDENTIFIER ::=
 161  *              { appleSecurityAlgorithm 1 }
 162  *      { 1 2 840 113635 100 2 1 }
 163  *
 164  * BER = 06 09 2A 86 48 86 F7 63 64 02 01
 165  */
 166 APPLE_FEE[]                     = {APPLE_ALG_OID, 1},
 167
 168 /*
 169  *      asc OBJECT IDENTIFIER ::=
 170  *              { appleSecurityAlgorithm 2 }
 171  *      { 1 2 840 113635 100 2 2 }
 172  *
 173  * BER = 06 09 2A 86 48 86 F7 63 64 02 02
 174  */
 175 APPLE_ASC[]                     = {APPLE_ALG_OID, 2},
 176
 177 /*
 178  *      fee_MD5 OBJECT IDENTIFIER ::=
 179  *              { appleSecurityAlgorithm 3 }
 180  *      { 1 2 840 113635 100 2 3 }
 181  *
 182  * BER = 06 09 2A 86 48 86 F7 63 64 02 03
 183  */
 184 APPLE_FEE_MD5[]         = {APPLE_ALG_OID, 3},
 185
 186 /*
 187  *      fee_SHA1 OBJECT IDENTIFIER ::=
 188  *              { appleSecurityAlgorithm 4 }
 189  *      { 1 2 840 113635 100 2 4 }
 190  *
 191  * BER = 06 09 2A 86 48 86 F7 63 64 02 04
 192  */
 193 APPLE_FEE_SHA1[]        = {APPLE_ALG_OID, 4},
 194
 195 /*
 196  *      feed OBJECT IDENTIFIER ::=
 197  *              { appleSecurityAlgorithm 5 }
 198  *      { 1 2 840 113635 100 2 5 }
 199  *
 200  * BER = 06 09 2A 86 48 86 F7 63 64 02 05
 201  */
 202 APPLE_FEED[]            = {APPLE_ALG_OID, 5},
 203
 204 /*
 205  *      feedExp OBJECT IDENTIFIER ::=
 206  *              { appleSecurityAlgorithm 6 }
 207  *      { 1 2 840 113635 100 2 6 }
 208  *
 209  * BER = 06 09 2A 86 48 86 F7 63 64 02 06
 210  */
 211 APPLE_FEEDEXP[]         = {APPLE_ALG_OID, 6},
 212
 213 /*
 214  *      AppleECDSA OBJECT IDENTIFIER ::=
 215  *              { appleSecurityAlgorithm 7 }
 216  *      { 1 2 840 113635 100 2 7 }
 217  *
 218  * BER = 06 09 2A 86 48 86 F7 63 64 02 07
 219  */
 220 APPLE_ECDSA[]           = {APPLE_ALG_OID, 7};
 221
 222 const CSSM_OID
 223
 224 CSSMOID_APPLE_ISIGN      = {APPLE_TP_OID_LENGTH+1,  (uint8 *)APPLE_TP_ISIGN},
 225 CSSMOID_APPLE_X509_BASIC = {APPLE_TP_OID_LENGTH+1,  (uint8 *)APPLE_TP_X509_BASIC},
 226 CSSMOID_APPLE_TP_SSL     = {APPLE_TP_OID_LENGTH+1,  (uint8 *)APPLE_TP_SSL},
 227 CSSMOID_APPLE_TP_LOCAL_CERT_GEN =
 228                                                    {APPLE_TP_OID_LENGTH+1,  (uint8 *)APPLE_TP_LOCAL_CERT_GEN},
 229 CSSMOID_APPLE_TP_CSR_GEN = {APPLE_TP_OID_LENGTH+1,  (uint8 *)APPLE_TP_CSR_GEN},
 230 CSSMOID_APPLE_TP_REVOCATION_CRL =
 231                                                    {APPLE_TP_OID_LENGTH+1,  (uint8 *)APPLE_TP_REVOCATION_CRL},
 232 CSSMOID_APPLE_TP_REVOCATION_OCSP =
 233                                                    {APPLE_TP_OID_LENGTH+1,  (uint8 *)APPLE_TP_REVOCATION_OCSP},
 234 CSSMOID_APPLE_TP_SMIME   = {APPLE_TP_OID_LENGTH+1,  (uint8 *)APPLE_TP_SMIME},
 235 CSSMOID_APPLE_TP_EAP     = {APPLE_TP_OID_LENGTH+1,  (uint8 *)APPLE_TP_EAP},
 236 CSSMOID_APPLE_FEE        = {APPLE_ALG_OID_LENGTH+1, (uint8 *)APPLE_FEE},
 237 CSSMOID_APPLE_ASC        = {APPLE_ALG_OID_LENGTH+1, (uint8 *)APPLE_ASC},
 238 CSSMOID_APPLE_FEE_MD5    = {APPLE_ALG_OID_LENGTH+1, (uint8 *)APPLE_FEE_MD5},
 239 CSSMOID_APPLE_FEE_SHA1   = {APPLE_ALG_OID_LENGTH+1, (uint8 *)APPLE_FEE_SHA1},
 240 CSSMOID_APPLE_FEED       = {APPLE_ALG_OID_LENGTH+1, (uint8 *)APPLE_FEED},
 241 CSSMOID_APPLE_FEEDEXP    = {APPLE_ALG_OID_LENGTH+1, (uint8 *)APPLE_FEEDEXP},
 242 CSSMOID_APPLE_ECDSA      = {APPLE_ALG_OID_LENGTH+1, (uint8 *)APPLE_ECDSA};
 243
 244 /* PKCS12 algorithms */
 245 #define OID_PKCS12_PbeIds                       OID_PKCS_12,1
 246 #define OID_PKCS12_PbeIds_Length        OID_PKCS_12_LENGTH+1
 247
 248 static const uint8
 249         OID_PKCS12_pbeWithSHAAnd128BitRC4[] =   { OID_PKCS12_PbeIds, 1 },
 250         OID_PKCS12_pbeWithSHAAnd40BitRC4[] =    { OID_PKCS12_PbeIds, 2 },
 251         OID_PKCS12_pbeWithSHAAnd3Key3DESCBC[] = { OID_PKCS12_PbeIds, 3 },
 252         OID_PKCS12_pbeWithSHAAnd2Key3DESCBC[] = { OID_PKCS12_PbeIds, 4 },
 253         OID_PKCS12_pbeWithSHAAnd128BitRC2CBC[] ={ OID_PKCS12_PbeIds, 5 },
 254         OID_PKCS12_pbewithSHAAnd40BitRC2CBC[] = { OID_PKCS12_PbeIds, 6 };
 255
 256
 257 const CSSM_OID
 258 CSSMOID_PKCS12_pbeWithSHAAnd128BitRC4 = {OID_PKCS12_PbeIds_Length + 1,
 259                                         (uint8 *)OID_PKCS12_pbeWithSHAAnd128BitRC4 },
 260 CSSMOID_PKCS12_pbeWithSHAAnd40BitRC4 = {OID_PKCS12_PbeIds_Length + 1,
 261                                         (uint8 *)OID_PKCS12_pbeWithSHAAnd40BitRC4 },
 262 CSSMOID_PKCS12_pbeWithSHAAnd3Key3DESCBC = {OID_PKCS12_PbeIds_Length + 1,
 263                                         (uint8 *)OID_PKCS12_pbeWithSHAAnd3Key3DESCBC },
 264 CSSMOID_PKCS12_pbeWithSHAAnd2Key3DESCBC = {OID_PKCS12_PbeIds_Length + 1,
 265                                         (uint8 *)OID_PKCS12_pbeWithSHAAnd2Key3DESCBC },
 266 CSSMOID_PKCS12_pbeWithSHAAnd128BitRC2CBC = {OID_PKCS12_PbeIds_Length + 1,
 267                                         (uint8 *)OID_PKCS12_pbeWithSHAAnd128BitRC2CBC },
 268 CSSMOID_PKCS12_pbewithSHAAnd40BitRC2CBC = {OID_PKCS12_PbeIds_Length + 1,
 269                                         (uint8 *)OID_PKCS12_pbewithSHAAnd40BitRC2CBC };
 270
 271
 272 #pragma mark ----- CSSM_OID <--> CSSM_ALGORITHMS -----
 273
 274 typedef struct {
 275         const CSSM_OID  *oid;
 276         CSSM_ALGORITHMS alg;
 277 } OidToAlgEnt;
 278
 279 static const OidToAlgEnt oidToAlgMap[] =
 280 {
 281         {&CSSMOID_RSA, CSSM_ALGID_RSA },
 282         {&CSSMOID_MD2WithRSA, CSSM_ALGID_MD2WithRSA },
 283         {&CSSMOID_MD5WithRSA, CSSM_ALGID_MD5WithRSA },
 284         {&CSSMOID_SHA1WithRSA, CSSM_ALGID_SHA1WithRSA },
 285         {&CSSMOID_SHA1WithRSA_OIW, CSSM_ALGID_SHA1WithRSA },
 286         {&CSSMOID_SHA1, CSSM_ALGID_SHA1},
 287         {&CSSMOID_MD5, CSSM_ALGID_MD5 },
 288         /*
 289          * These OIDs have three variants - one for BSAFE, CMS, and JDK 1.1.
 290          * On the oid-to-alg map, we'll handle either one, mapping to
 291          * the same CSSM alg. When we map from alg to OID, we'll use
 292          * the CMS variant (being first in the list).
 293          */
 294         {&CSSMOID_DSA_CMS, CSSM_ALGID_DSA },
 295         {&CSSMOID_DSA, CSSM_ALGID_DSA },
 296         {&CSSMOID_DSA_JDK, CSSM_ALGID_DSA },
 297         {&CSSMOID_SHA1WithDSA_CMS, CSSM_ALGID_SHA1WithDSA },
 298         {&CSSMOID_SHA1WithDSA, CSSM_ALGID_SHA1WithDSA },
 299         {&CSSMOID_SHA1WithDSA_JDK, CSSM_ALGID_SHA1WithDSA },
 300         /*
 301          * Multiple entries for Diffie-Hellman. We favor the PKCS3 version for
 302          * mapping alg to OID.
 303          */
 304         {&CSSMOID_DH, CSSM_ALGID_DH},
 305         {&CSSMOID_ANSI_DH_PUB_NUMBER, CSSM_ALGID_DH},
 306         {&CSSMOID_ANSI_DH_STATIC, CSSM_ALGID_DH},
 307         {&CSSMOID_ANSI_DH_ONE_FLOW, CSSM_ALGID_DH},
 308         {&CSSMOID_ANSI_DH_EPHEM, CSSM_ALGID_DH},
 309         {&CSSMOID_ANSI_DH_HYBRID1, CSSM_ALGID_DH},
 310         {&CSSMOID_ANSI_DH_HYBRID2, CSSM_ALGID_DH},
 311         {&CSSMOID_ANSI_DH_HYBRID_ONEFLOW, CSSM_ALGID_DH},
 312         {&CSSMOID_APPLE_FEE, CSSM_ALGID_FEE },
 313         {&CSSMOID_APPLE_ASC, CSSM_ALGID_ASC },
 314         {&CSSMOID_APPLE_FEE_MD5, CSSM_ALGID_FEE_MD5 },
 315         {&CSSMOID_APPLE_FEE_SHA1, CSSM_ALGID_FEE_SHA1 },
 316         {&CSSMOID_APPLE_FEED, CSSM_ALGID_FEED },
 317         {&CSSMOID_APPLE_FEEDEXP, CSSM_ALGID_FEEDEXP },
 318         {&CSSMOID_APPLE_ECDSA, CSSM_ALGID_SHA1WithECDSA },
 319         {NULL, 0}
 320 };
 321
 322 #define NUM_OID_TO_ALGS (sizeof(oidToAlgMap) / sizeof(oidToAlgMap[0]))
 323
 324 /*
 325  * Compare two CSSM_DATAs (or two CSSM_OIDs), return true if identical.
 326  */
 327 static bool compareCssmData(
 328         const CSSM_DATA *data1,
 329         const CSSM_DATA *data2)
 330 {
 331         if((data1 == NULL) || (data1->Data == NULL) ||
 332            (data2 == NULL) || (data2->Data == NULL) ||
 333            (data1->Length != data2->Length)) {
 334                 return false;
 335         }
 336         if(data1->Length != data2->Length) {
 337                 return false;
 338         }
 339         if(memcmp(data1->Data, data2->Data, data1->Length) == 0) {
 340                 return true;
 341         }
 342         else {
 343                 return false;
 344         }
 345 }
 346
 347 bool cssmOidToAlg(
 348         const CSSM_OID *oid,
 349         CSSM_ALGORITHMS *alg)           // RETURNED
 350 {
 351         const OidToAlgEnt *ent;
 352
 353         for(ent=oidToAlgMap; ent->oid; ent++) {
 354                 if(compareCssmData(ent->oid, oid)) {
 355                         *alg = ent->alg;
 356                         return true;
 357                 }
 358         }
 359         return false;
 360 }
 361
 362 const CSSM_OID *cssmAlgToOid(
 363         CSSM_ALGORITHMS algId)
 364 {
 365         const OidToAlgEnt *ent;
 366
 367         for(ent=oidToAlgMap; ent->oid; ent++) {
 368                 if(ent->alg == algId) {
 369                         return ent->oid;
 370                 }
 371         }
 372         return NULL;
 373 }
 374
 375