]> git.saurik.com Git - apple/security.git/blobdiff - libsecurity_apple_csp/lib/AppleCSPUtils.cpp
Security-57031.1.35.tar.gz
[apple/security.git] / libsecurity_apple_csp / lib / AppleCSPUtils.cpp
diff --git a/libsecurity_apple_csp/lib/AppleCSPUtils.cpp b/libsecurity_apple_csp/lib/AppleCSPUtils.cpp
deleted file mode 100644 (file)
index 246bba2..0000000
+++ /dev/null
@@ -1,689 +0,0 @@
-/*
- * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
- * 
- * The contents of this file constitute Original Code as defined in and are
- * subject to the Apple Public Source License Version 1.2 (the 'License').
- * You may not use this file except in compliance with the License. Please obtain
- * a copy of the License at http://www.apple.com/publicsource and read it before
- * using this file.
- * 
- * This Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
- * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
- * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
- * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
- * specific language governing rights and limitations under the License.
- */
-
-
-//
-// AppleCSPUtils.cpp - CSP-wide utility functions
-//
-
-#include "AppleCSPUtils.h"
-#include <Security/cssmerr.h>
-#include <security_utilities/alloc.h>
-#include <security_cdsa_utilities/cssmdates.h>
-#include <string.h>
-#include <FEECSPUtils.h>
-#include <SHA1_MD5_Object.h>
-#include "RSA_DSA_keys.h"
-#include <syslog.h>
-
-/*
- * Validate key attribute bits per specified key type.
- *
- * Used to check requested key attributes for new keys and for validating
- * incoming existing keys. For checking key attributes for new keys,
- * assumes that KEYATTR_RETURN_xxx bits have been checked elsewhere
- * and stripped off before coming here.
- */
-void cspValidateKeyAttr(
-       cspKeyType      keyType,
-       uint32          keyAttr)
-{
-       uint32 sensitiveBit = (keyAttr & CSSM_KEYATTR_SENSITIVE)    ? 1 : 0;
-       uint32 extractBit   = (keyAttr & CSSM_KEYATTR_EXTRACTABLE)  ? 1 : 0;
-
-       /* first general CSP-wide checks */
-       if(keyAttr & KEY_ATTR_RETURN_MASK) {
-               //errorLog0(" KEY_ATTR_RETURN bits set\n");
-               CssmError::throwMe(CSSMERR_CSP_INVALID_KEYATTR_MASK);
-       }
-       if(keyAttr & CSSM_KEYATTR_PERMANENT) {
-               //errorLog0(" PERMANENT bit not supported\n");
-               CssmError::throwMe(CSSMERR_CSP_UNSUPPORTED_KEYATTR_MASK);
-       }
-       if(keyAttr & CSSM_KEYATTR_PRIVATE) {
-               CssmError::throwMe(CSSMERR_CSP_UNSUPPORTED_KEYATTR_MASK);
-       }
-       /* Anything else? */
-       
-       /* now check per keyType */
-       switch(keyType) {
-               case CKT_Session:
-                       break;
-
-               case CKT_Public:
-                       if(sensitiveBit || !extractBit) {
-                               //errorLog0("Public keys must be extractable in the clear\n");
-                               CssmError::throwMe(CSSMERR_CSP_INVALID_KEYATTR_MASK);
-                       }
-                       break;
-
-               case CKT_Private:
-                       //if(!sensitiveBit) {
-                       //      errorLog0("Private keys must have KEYATTR_SENSITIVE\n");
-                       //      CssmError::throwMe(CSSMERR_CSP_INVALID_KEYATTR_MASK);
-                       //}
-
-                       /*
-                        * One more restriction - EXTRACTABLE - caller must check since
-                        * that involves KEYUSE bits.
-                        */
-                       break;
-               default:
-                       CssmError::throwMe(CSSMERR_CSP_INTERNAL_ERROR);
-       }
-       return;
-}
-
-/*
- * Perform sanity check of incoming key attribute bits for a given
- * key type, and return a cspKeyStorage value.
- *
- * Called from any routine which generates a new key. This specifically
- * excludes WrapKey().
- */
-cspKeyStorage cspParseKeyAttr(
-       cspKeyType      keyType,
-       uint32          keyAttr)
-{
-       uint32 sensitiveBit = (keyAttr & CSSM_KEYATTR_SENSITIVE)    ? 1 : 0;
-       uint32 rtnDataBit   = (keyAttr & CSSM_KEYATTR_RETURN_DATA)  ? 1 : 0;
-       uint32 rtnRefBit    = (keyAttr & CSSM_KEYATTR_RETURN_REF)   ? 1 : 0;
-       uint32 extractBit   = (keyAttr & CSSM_KEYATTR_EXTRACTABLE)  ? 1 : 0;
-
-       cspKeyStorage rtn;
-
-       /* first general CDSA-wide checks */
-       if(keyAttr & (CSSM_KEYATTR_ALWAYS_SENSITIVE |
-                                 CSSM_KEYATTR_NEVER_EXTRACTABLE)) {
-               //errorLog0("ALWAYS_SENSITIVE, NEVER_EXTRACTABLE illegal at SPI\n");
-               CssmError::throwMe(CSSMERR_CSP_INVALID_KEYATTR_MASK);
-       }
-       switch(keyAttr & KEY_ATTR_RETURN_MASK) {
-               /* ensure only one bit is set */
-               case CSSM_KEYATTR_RETURN_DATA:
-                       rtn = CKS_Data;
-                       break;
-               case CSSM_KEYATTR_RETURN_REF:
-                       rtn = CKS_Ref;
-                       break;
-               case CSSM_KEYATTR_RETURN_NONE:
-                       rtn = CKS_None;
-                       break;
-               case CSSM_KEYATTR_RETURN_DEFAULT:
-                       /* CSP default */
-                       rtnRefBit = 1;
-                       rtn = CKS_Ref;
-                       break;
-               default:
-                       //errorLog0("Multiple KEYATTR_RETURN bits set\n");
-                       CssmError::throwMe(CSSMERR_CSP_INVALID_KEYATTR_MASK);
-       }
-
-       /* now CSP-wide checks for all key types */
-       if(keyType != CKT_Session) {
-               /* session keys modifiable, no others are */
-               if(keyAttr & CSSM_KEYATTR_MODIFIABLE) {
-                       //errorLog0("CSSM_KEYATTR_MODIFIABLE not supported\n");
-                       CssmError::throwMe(CSSMERR_CSP_INVALID_KEYATTR_MASK);
-               }
-       }
-       if(rtnDataBit) {
-               if(!extractBit) {
-                       //errorLog0("RETURN_DATA and !EXTRACTABLE not supported\n");
-                       CssmError::throwMe(CSSMERR_CSP_INVALID_KEYATTR_MASK);
-               }
-               if(sensitiveBit) {
-                       //errorLog0("RETURN_DATA and SENSITIVE not supported\n");
-                       CssmError::throwMe(CSSMERR_CSP_INVALID_KEYATTR_MASK);
-               }
-       }
-
-       /* now check per keyType. We're ust checking for things specific
-        * to KEYATTR_RETURN_xxx; cspValidateKeyAttr will check other fields. */
-        #if 0
-        // nothing for now
-       switch(keyType) {
-               case CKT_Session:
-                       break;
-
-               case MKT_Public:
-                       break;
-
-               case MKT_Private:
-                       if(rtnDataBit) {
-                               errorLog0("Private keys must be generated by ref\n");
-                               goto errorOut;
-                       }
-                       /*
-                        * One more restriction - EXTRACTABLE - caller must check since
-                        * that involves KEYUSE bits.
-                        */
-                       break;
-               default:
-                       CssmError::throwMe(CSSMERR_CSP_INTERNAL_ERROR);
-       }
-       #endif  // 0
-
-       /* validate other common static attributes */
-       cspValidateKeyAttr(keyType, (keyAttr & ~KEY_ATTR_RETURN_MASK));
-       return rtn;
-}
-
-
-/* used in cspValidateKeyUsageBits() */
-/*
- * This is a vestige from OS9/ASA. In the real world there are in fact certs with
- * keyUsage extensions which specify, e.g., verify and wrap. I think we'll just
- * have to ignore the old exclusivity rules. 
- */
-#define IGNORE_KEYUSE_EXCLUSIVITY      1
-#if            IGNORE_KEYUSE_EXCLUSIVITY
-#define checkExclusiveUsage(ku, cb, ob, em)
-#else
-static void checkExclusiveUsage(
-       uint32          keyUsage,               // requested usage word
-       uint32          checkBits,              // if any of these are set
-       uint32          otherBits,              // these are the only other bits which can be set
-       const char      *errMsg)
-{
-       if(keyUsage & checkBits) {
-               if(keyUsage & ~otherBits) {
-                       errorLog0((char *)errMsg);
-                       CssmError::throwMe(CSSMERR_CSP_UNSUPPORTED_KEYUSAGE_MASK);
-               }
-       }
-}
-#endif /* IGNORE_KEYUSE_EXCLUSIVITY */
-
-/*
- * Validate key usage bits for specified key type.
- */
-void cspValidateKeyUsageBits (
-       cspKeyType      keyType,
-       uint32          keyUsage)
-{
-       /* general restrictions */
-       checkExclusiveUsage(keyUsage,
-               CSSM_KEYUSE_ANY,
-               CSSM_KEYUSE_ANY,
-               "CSSM_KEYUSE_ANY overload");
-       checkExclusiveUsage(keyUsage,
-                       CSSM_KEYUSE_DERIVE,
-                       CSSM_KEYUSE_DERIVE,
-                       "CSSM_KEYUSE_DERIVE overload\n");
-
-       /* brute force per key type. */
-       switch(keyType) {
-               case CKT_Session:
-                       checkExclusiveUsage(keyUsage,
-                                       CSSM_KEYUSE_ENCRYPT | CSSM_KEYUSE_DECRYPT,
-                                       CSSM_KEYUSE_ENCRYPT | CSSM_KEYUSE_DECRYPT,
-                                       "session key usage: encrypt/decrypt overload\n");
-                       checkExclusiveUsage(keyUsage,
-                                       CSSM_KEYUSE_SIGN | CSSM_KEYUSE_VERIFY |
-                                               CSSM_KEYUSE_SIGN_RECOVER | CSSM_KEYUSE_VERIFY_RECOVER,
-                                       CSSM_KEYUSE_SIGN | CSSM_KEYUSE_VERIFY |
-                                               CSSM_KEYUSE_SIGN_RECOVER | CSSM_KEYUSE_VERIFY_RECOVER,
-                                       "session key usage: sign/verify overload\n");
-                       checkExclusiveUsage(keyUsage,
-                                       CSSM_KEYUSE_WRAP | CSSM_KEYUSE_UNWRAP,
-                                       CSSM_KEYUSE_WRAP | CSSM_KEYUSE_UNWRAP,
-                                       "session key usage: wrap/unwrap overload\n");
-                       break;
-
-               case CKT_Public:
-                       checkExclusiveUsage(keyUsage,
-                                       CSSM_KEYUSE_ENCRYPT,
-                                       CSSM_KEYUSE_ENCRYPT,
-                                       "public key usage: encrypt overload\n");
-                       if(keyUsage & CSSM_KEYUSE_DECRYPT) {
-                               errorLog0("public key usage: DECRYPT illegal\n");
-                               CssmError::throwMe(CSSMERR_CSP_UNSUPPORTED_KEYUSAGE_MASK);
-                       }
-                       if(keyUsage & (CSSM_KEYUSE_SIGN | CSSM_KEYUSE_SIGN_RECOVER)) {
-                               errorLog0("public key usage: SIGN illegal\n");
-                               CssmError::throwMe(CSSMERR_CSP_UNSUPPORTED_KEYUSAGE_MASK);
-                       }
-                       checkExclusiveUsage(keyUsage,
-                                       CSSM_KEYUSE_VERIFY | CSSM_KEYUSE_VERIFY_RECOVER,
-                                       CSSM_KEYUSE_VERIFY | CSSM_KEYUSE_VERIFY_RECOVER,
-                                       "public key usage: verify overload\n");
-                       checkExclusiveUsage(keyUsage,
-                                       CSSM_KEYUSE_WRAP,
-                                       CSSM_KEYUSE_WRAP,
-                                       "public key usage: wrap overload\n");
-                       if(keyUsage & CSSM_KEYUSE_UNWRAP) {
-                               errorLog0("public key usage: UNWRAP illegal\n");
-                               CssmError::throwMe(CSSMERR_CSP_UNSUPPORTED_KEYUSAGE_MASK);
-                       }
-                       break;
-
-               case CKT_Private:
-                       if(keyUsage & CSSM_KEYUSE_ENCRYPT) {
-                               errorLog0("private key usage: ENCRYPT illegal\n");
-                               CssmError::throwMe(CSSMERR_CSP_UNSUPPORTED_KEYUSAGE_MASK);
-                       }
-                       checkExclusiveUsage(keyUsage,
-                                       CSSM_KEYUSE_DECRYPT,
-                                       CSSM_KEYUSE_DECRYPT,
-                                       "private key usage: decrypt overload\n");
-                       checkExclusiveUsage(keyUsage,
-                                       CSSM_KEYUSE_SIGN | CSSM_KEYUSE_SIGN_RECOVER,
-                                       CSSM_KEYUSE_SIGN | CSSM_KEYUSE_SIGN_RECOVER,
-                                       "private key usage: sign overload\n");
-                       if(keyUsage & (CSSM_KEYUSE_VERIFY | CSSM_KEYUSE_VERIFY_RECOVER)) {
-                               errorLog0("private key usage: VERIFY illegal\n");
-                               CssmError::throwMe(CSSMERR_CSP_UNSUPPORTED_KEYUSAGE_MASK);
-                       }
-                       if(keyUsage & CSSM_KEYUSE_WRAP) {
-                               errorLog0("private key usage: WRAP illegal\n");
-                               CssmError::throwMe(CSSMERR_CSP_UNSUPPORTED_KEYUSAGE_MASK);
-                       }
-                       checkExclusiveUsage(keyUsage,
-                                       CSSM_KEYUSE_UNWRAP,
-                                       CSSM_KEYUSE_UNWRAP,
-                                       "private key usage: unwrap overload\n");
-                       break;
-               default:
-                       CssmError::throwMe(CSSMERR_CSP_INTERNAL_ERROR);
-       }
-}
-
-/*
- * Validate existing key's usage bits against intended use.
- */
-
-/*
- * For now, a key marked for KEYUSE_{WRAP|UNWRAP} can also be used for
- * KEYUSE_{ENCRYPT|DECRYPT}. This is a temporary workaround for
- * Radar 2716153.
- */
-#define RELAXED_WRAP_USAGE             1
-
-void cspValidateIntendedKeyUsage(
-       const CSSM_KEYHEADER    *hdr,
-       CSSM_KEYUSE                             intendedUsage)
-{
-       uint32          keyUsage = hdr->KeyUsage;
-       cspKeyType      keyType;
-
-       /* first, the obvious */
-       if(keyUsage & CSSM_KEYUSE_ANY) {
-               /* OK for now */
-               return;
-       }
-       if(!(keyUsage & intendedUsage)) {
-               #if             RELAXED_WRAP_USAGE
-               if(! ( ( (keyUsage & CSSM_KEYUSE_WRAP) && 
-                        (intendedUsage == CSSM_KEYUSE_ENCRYPT)
-                          ) ||
-                          ( (keyUsage & CSSM_KEYUSE_UNWRAP) && 
-                        (intendedUsage == CSSM_KEYUSE_DECRYPT)
-                          )
-                        ) )
-               #endif
-               CssmError::throwMe(CSSMERR_CSP_KEY_USAGE_INCORRECT);
-       }
-
-       /* now validate all of the key's usage bits - this is mainly to
-        * prevent and detect tampering */
-       switch(hdr->KeyClass) {
-               case CSSM_KEYCLASS_SESSION_KEY:
-                       keyType = CKT_Session;
-                       break;
-               case CSSM_KEYCLASS_PUBLIC_KEY:
-                       keyType = CKT_Public;
-                       break;
-               case CSSM_KEYCLASS_PRIVATE_KEY:
-                       keyType = CKT_Private;
-                       break;
-               default:
-                       CssmError::throwMe(CSSMERR_CSP_INTERNAL_ERROR);
-       }
-       try {
-               cspValidateKeyUsageBits(keyType, keyUsage);
-       }
-       catch (...) {
-               /* override error.... */
-               CssmError::throwMe(CSSMERR_CSP_KEY_USAGE_INCORRECT);
-       }
-}
-
-/*
- * Set up a key header.
- */
-void setKeyHeader(
-       CSSM_KEYHEADER &hdr,
-       const Guid &myGuid,
-       CSSM_ALGORITHMS alg, 
-       CSSM_KEYCLASS keyClass,
-       CSSM_KEYATTR_FLAGS attrs, 
-       CSSM_KEYUSE use)
-{
-    memset(&hdr, 0, sizeof(CSSM_KEYHEADER));
-    hdr.HeaderVersion = CSSM_KEYHEADER_VERSION;
-    hdr.CspId = myGuid;
-    hdr.AlgorithmId = alg;
-    hdr.KeyClass = keyClass;
-    hdr.KeyUsage = use;
-    hdr.KeyAttr = attrs;
-
-    // defaults (change as needed)
-    hdr.WrapAlgorithmId = CSSM_ALGID_NONE;
-}
-
-/*
- * Ensure that indicated CssmData can handle 'length' bytes 
- * of data. Malloc the Data ptr if necessary.
- */
-void setUpCssmData(
-       CssmData                        &data,
-       size_t                          length,
-       Allocator               &allocator)
-{
-       /* FIXME - I'm sure Perry has more elegant ways of doing this,
-        * but I can't figure them out. */
-       if(data.Length == 0) {
-               data.Data = (uint8 *)allocator.malloc(length);
-       }
-       else if(data.Length < length) {
-               CssmError::throwMe(CSSMERR_CSP_INVALID_DATA);
-       }
-       data.Length = length;
-}
-
-void setUpData(
-       CSSM_DATA                       &data,
-       size_t                          length,
-       Allocator               &allocator)
-{
-       setUpCssmData(CssmData::overlay(data), length, allocator);
-}
-
-void freeCssmData(
-       CssmData                        &data, 
-       Allocator               &allocator)
-{
-       if(data.Data) {
-               allocator.free(data.Data);
-               data.Data = NULL;
-       }
-       data.Length = 0;
-}
-       
-void freeData(
-       CSSM_DATA                       *data, 
-       Allocator               &allocator,
-       bool                            freeStruct)             // free the CSSM_DATA itself
-{
-       if(data == NULL) {
-               return;
-       }
-       if(data->Data) {
-               allocator.free(data->Data);
-               data->Data = NULL;
-       }
-       data->Length = 0;
-       if(freeStruct) {
-               allocator.free(data);
-       }
-}
-
-/*
- * Copy source to destination, mallocing destination if necessary.
- */
-void copyCssmData(
-       const CssmData          &src,
-       CssmData                        &dst,
-       Allocator               &allocator)
-{
-       setUpCssmData(dst, src.Length, allocator);
-       memmove(dst.Data, src.Data, src.Length);
-}
-
-void copyData(
-       const CSSM_DATA         &src,
-       CSSM_DATA                       &dst,
-       Allocator               &allocator)
-{
-       copyCssmData(CssmData::overlay(src), 
-               CssmData::overlay(dst), 
-               allocator);
-}
-
-/*
- * Compare two CSSM_DATAs, return CSSM_TRUE if identical.
- */
-CSSM_BOOL cspCompareCssmData(
-       const CSSM_DATA *data1,
-       const CSSM_DATA *data2)
-{      
-       if((data1 == NULL) || (data1->Data == NULL) || 
-          (data2 == NULL) || (data2->Data == NULL) ||
-          (data1->Length != data2->Length)) {
-               return CSSM_FALSE;
-       }
-       if(data1->Length != data2->Length) {
-               return CSSM_FALSE;
-       }
-       if(memcmp(data1->Data, data2->Data, data1->Length) == 0) {
-               return CSSM_TRUE;
-       }
-       else {
-               return CSSM_FALSE;
-       }
-}
-
-/*
- * This takes care of mallocing the KeyLabel field. 
- */
-void copyCssmHeader(
-       const CssmKey::Header   &src,
-       CssmKey::Header                 &dst,
-       Allocator                       &allocator)
-{
-       dst = src;
-}
-
-/*
- * Given a wrapped key, infer its raw format for custom Apple unwrapping. 
- * This is a real kludge; it only works as long as each the key's
- * default format is used to generate the blob to be wrapped. 
- */
-CSSM_KEYBLOB_FORMAT inferFormat(
-       const CssmKey           &wrappedKey)
-{
-       switch(wrappedKey.keyClass()) {
-               case CSSM_KEYCLASS_SESSION_KEY:
-                       return CSSM_KEYBLOB_RAW_FORMAT_OCTET_STRING;
-               case CSSM_KEYCLASS_PUBLIC_KEY:
-                       switch(wrappedKey.algorithm()) {
-                               case CSSM_ALGID_RSA:
-                                       return RSA_PUB_KEY_FORMAT;
-                               case CSSM_ALGID_DSA:
-                                       return DSA_PUB_KEY_FORMAT;
-                               #ifdef  CRYPTKIT_CSP_ENABLE
-                               case CSSM_ALGID_FEE:
-                                       return FEE_KEYBLOB_DEFAULT_FORMAT;
-                               case CSSM_ALGID_ECDSA:
-                                       return CSSM_KEYBLOB_RAW_FORMAT_X509;
-                               #endif
-                               case CSSM_ALGID_DH:
-                                       return CSSM_KEYBLOB_RAW_FORMAT_PKCS3;
-                               default:
-                                       /* punt */
-                                       return CSSM_KEYBLOB_RAW_FORMAT_NONE;
-                       }
-               case CSSM_KEYCLASS_PRIVATE_KEY:
-                       switch(wrappedKey.algorithm()) {
-                               case CSSM_ALGID_RSA:
-                                       return RSA_PRIV_KEY_FORMAT;
-                               case CSSM_ALGID_DSA:
-                                       return DSA_PRIV_KEY_FORMAT;
-                               #ifdef  CRYPTKIT_CSP_ENABLE
-                               case CSSM_ALGID_FEE:
-                                       return FEE_KEYBLOB_DEFAULT_FORMAT;
-                               case CSSM_ALGID_ECDSA:
-                                       return CSSM_KEYBLOB_RAW_FORMAT_OPENSSL;
-                               #endif
-                               case CSSM_ALGID_DH:
-                                       return CSSM_KEYBLOB_RAW_FORMAT_PKCS3;
-                               default:
-                                       /* punt */
-                                       return CSSM_KEYBLOB_RAW_FORMAT_NONE;
-                       }
-               default:
-                       /* punt */
-                       return CSSM_KEYBLOB_RAW_FORMAT_NONE;
-       }
-}
-
-/*
- * Given a key and a Context, obtain the optional associated 
- * CSSM_ATTRIBUTE_{PUBLIC,PRIVATE,SYMMETRIC}_KEY_FORMAT attribute as a 
- * CSSM_KEYBLOB_FORMAT.
- */
-CSSM_KEYBLOB_FORMAT requestedKeyFormat(
-       const Context   &context,
-       const CssmKey   &key)
-{
-       CSSM_ATTRIBUTE_TYPE attrType;
-       
-       switch(key.keyClass()) {
-               case CSSM_KEYCLASS_SESSION_KEY:
-                       attrType = CSSM_ATTRIBUTE_SYMMETRIC_KEY_FORMAT;
-                       break;
-               case CSSM_KEYCLASS_PUBLIC_KEY:
-                       attrType = CSSM_ATTRIBUTE_PUBLIC_KEY_FORMAT;
-                       break;
-               case CSSM_KEYCLASS_PRIVATE_KEY:
-                       attrType = CSSM_ATTRIBUTE_PRIVATE_KEY_FORMAT;
-                       break;
-               default:
-                       return CSSM_KEYBLOB_RAW_FORMAT_NONE;
-       }
-       /* not present ==> 0 ==> CSSM_KEYBLOB_RAW_FORMAT_NONE */
-       return context.getInt(attrType);
-}
-
-/* one-shot SHA1 digest */
-void cspGenSha1Hash(
-       const void              *inData,
-       size_t                  inDataLen,
-       void                    *out)           // caller mallocs, digest goes here
-{
-       SHA1Object sha1;
-       
-       sha1.digestInit();
-       sha1.digestUpdate(inData, inDataLen);
-       sha1.digestFinal(out);
-}
-
-/*
- * Convert a CSSM_DATE to a CssmUniformDate, or NULL if the CSSM_DATE
- * is empty.
- */
-static CssmUniformDate *cspGetUniformDate(
-       const CSSM_DATE &cdate)
-{
-       bool isZero = true;
-       unsigned char *cp = (unsigned char *)&cdate;
-       for(unsigned i=0; i<sizeof(cdate); i++) {
-               if(*cp++ != 0) {
-                       isZero = false;
-                       break;
-               }
-       }
-       if(isZero) {
-               return NULL;
-       }
-       else {
-               return new CssmUniformDate(CssmDate::overlay(cdate));
-       }
-}
-
-/*
- * Get "now" as a CssmUniformDate.
- */
-static CssmUniformDate *cspNow()
-{
-       CFAbsoluteTime cfTime = CFAbsoluteTimeGetCurrent();
-       return new CssmUniformDate(cfTime);
-}
-
-#define keyDateDebug(args...)  secdebug("keyDate", ## args) 
-
-/*
- * Verify temporal validity of specified key. 
- * An empty (all zero) time field means "ignore this".
- * Throws CSSMERR_CSP_APPLE_INVALID_KEY_START_DATE or 
- * CSSMERR_CSP_APPLE_INVALID_KEY_END_DATE as appropriate. 
- */
-void cspVerifyKeyTimes(
-       const CSSM_KEYHEADER &hdr)
-{
-       CSSM_RETURN err = CSSM_OK;
-       CssmUniformDate *now = NULL;    // evaluate lazily
-       CssmUniformDate *end = NULL;    // ditto
-       CssmUniformDate *start = cspGetUniformDate(hdr.StartDate);
-
-       if(start) {
-               now = cspNow();
-               if(*now < *start) {
-                       keyDateDebug("Invalid start date");
-                       err = CSSMERR_CSP_APPLE_INVALID_KEY_START_DATE;
-               }
-               else {
-                       keyDateDebug("Valid start date");
-               }
-       }
-       else {
-               keyDateDebug("Empty start date");
-       }
-
-       if(!err) {
-               end = cspGetUniformDate(hdr.EndDate);
-               if(end) {
-                       if(now == NULL) {
-                               now = cspNow();
-                       }
-                       if(*now > *end) {
-                               keyDateDebug("Invalid end date");
-                               err = CSSMERR_CSP_APPLE_INVALID_KEY_END_DATE;
-                       }
-                       else {
-                               keyDateDebug("Valid end date");
-                       }
-               }
-               else {
-                       keyDateDebug("Empty end date");
-               }
-       }
-       if(now) {
-               delete now;
-       }
-       if(end) {
-               delete end;
-       }
-       if(start) {
-               delete start;
-       }
-       if(err) {
-               CssmError::throwMe(err);
-       }
-}
-