static int
xmlSecMSCryptoKWAesInitialize(xmlSecTransformPtr transform) {
xmlSecMSCryptoKWAesCtxPtr ctx;
int ret;
xmlSecAssert2(xmlSecMSCryptoKWAesCheckId(transform), -1);
xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecMSCryptoKWAesSize), -1);
ctx = xmlSecMSCryptoKWAesGetCtx(transform);
xmlSecAssert2(ctx != NULL, -1);
memset(ctx, 0, sizeof(xmlSecMSCryptoKWAesCtx));
if(transform->id == xmlSecMSCryptoTransformKWAes128Id) {
ctx->algorithmIdentifier = CALG_AES_128;
ctx->keyId = xmlSecMSCryptoKeyDataAesId;
ctx->providers = xmlSecMSCryptoProviderInfo_Aes;
ctx->keySize = XMLSEC_KW_AES128_KEY_SIZE;
} else if(transform->id == xmlSecMSCryptoTransformKWAes192Id) {
ctx->algorithmIdentifier = CALG_AES_192;
ctx->keyId = xmlSecMSCryptoKeyDataAesId;
ctx->providers = xmlSecMSCryptoProviderInfo_Aes;
ctx->keySize = XMLSEC_KW_AES192_KEY_SIZE;
} else if(transform->id == xmlSecMSCryptoTransformKWAes256Id) {
ctx->algorithmIdentifier = CALG_AES_256;
ctx->keyId = xmlSecMSCryptoKeyDataAesId;
ctx->providers = xmlSecMSCryptoProviderInfo_Aes;
ctx->keySize = XMLSEC_KW_AES256_KEY_SIZE;
} else {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
NULL,
XMLSEC_ERRORS_R_INVALID_TRANSFORM,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
ret = xmlSecBufferInitialize(&ctx->keyBuffer, 0);
if(ret < 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
NULL,
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
/* find provider */
ctx->cryptProvider = xmlSecMSCryptoFindProvider(ctx->providers, NULL, CRYPT_VERIFYCONTEXT, TRUE);
if(ctx->cryptProvider == 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlSecMSCryptoFindProvider",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
/* Create dummy key to be able to import plain session keys */
if (!xmlSecMSCryptoCreatePrivateExponentOneKey(ctx->cryptProvider, &(ctx->pubPrivKey))) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlSecMSCryptoCreatePrivateExponentOneKey",
XMLSEC_ERRORS_R_CRYPTO_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
return(0);
}
static int
xmlSecMSCryptoKWDes3Initialize(xmlSecTransformPtr transform) {
xmlSecMSCryptoKWDes3CtxPtr ctx;
int ret;
xmlSecAssert2(xmlSecTransformCheckId(transform, xmlSecMSCryptoTransformKWDes3Id), -1);
xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecMSCryptoKWDes3Size), -1);
ctx = xmlSecMSCryptoKWDes3GetCtx(transform);
xmlSecAssert2(ctx != NULL, -1);
memset(ctx, 0, sizeof(xmlSecMSCryptoKWDes3Ctx));
if(transform->id == xmlSecMSCryptoTransformKWDes3Id) {
ctx->desAlgorithmIdentifier = CALG_3DES;
ctx->desProviders = xmlSecMSCryptoProviderInfo_Des;
ctx->sha1AlgorithmIdentifier = CALG_SHA1;
ctx->sha1Providers = xmlSecMSCryptoProviderInfo_Sha1;
ctx->keyId = xmlSecMSCryptoKeyDataDesId;
ctx->keySize = XMLSEC_KW_DES3_KEY_LENGTH;
} else {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
NULL,
XMLSEC_ERRORS_R_INVALID_TRANSFORM,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
ret = xmlSecBufferInitialize(&(ctx->keyBuffer), 0);
if(ret < 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlSecBufferInitialize",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
/* find providers */
ctx->desCryptProvider = xmlSecMSCryptoFindProvider(ctx->desProviders, NULL, CRYPT_VERIFYCONTEXT, TRUE);
if(ctx->desCryptProvider == 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlSecMSCryptoFindProvider(des)",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
ctx->sha1CryptProvider = xmlSecMSCryptoFindProvider(ctx->sha1Providers, NULL, CRYPT_VERIFYCONTEXT, TRUE);
if(ctx->sha1CryptProvider == 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlSecMSCryptoFindProvider(sha1)",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
/* Create dummy key to be able to import plain session keys */
if (!xmlSecMSCryptoCreatePrivateExponentOneKey(ctx->desCryptProvider, &(ctx->pubPrivKey))) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlSecMSCryptoCreatePrivateExponentOneKey",
XMLSEC_ERRORS_R_CRYPTO_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
return(0);
}
static int
xmlSecMSCryptoHmacInitialize(xmlSecTransformPtr transform) {
xmlSecMSCryptoHmacCtxPtr ctx;
xmlSecAssert2(xmlSecMSCryptoHmacCheckId(transform), -1);
xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecMSCryptoHmacSize), -1);
ctx = xmlSecMSCryptoHmacGetCtx(transform);
xmlSecAssert2(ctx != NULL, -1);
/* initialize context */
memset(ctx, 0, sizeof(xmlSecMSCryptoHmacCtx));
#ifndef XMLSEC_NO_SHA1
if(xmlSecTransformCheckId(transform, xmlSecMSCryptoTransformHmacSha1Id)) {
ctx->alg_id = CALG_SHA1;
ctx->providers = xmlSecMSCryptoProviderInfo_Hmac;
} else
#endif /* XMLSEC_NO_SHA1 */
#ifndef XMLSEC_NO_SHA256
if(xmlSecTransformCheckId(transform, xmlSecMSCryptoTransformHmacSha256Id)) {
ctx->alg_id = CALG_SHA_256;
ctx->providers = xmlSecMSCryptoProviderInfo_Hmac;
} else
#endif /* XMLSEC_NO_SHA256 */
#ifndef XMLSEC_NO_SHA384
if(xmlSecTransformCheckId(transform, xmlSecMSCryptoTransformHmacSha384Id)) {
ctx->alg_id = CALG_SHA_384;
ctx->providers = xmlSecMSCryptoProviderInfo_Hmac;
} else
#endif /* XMLSEC_NO_SHA384 */
#ifndef XMLSEC_NO_SHA512
if(xmlSecTransformCheckId(transform, xmlSecMSCryptoTransformHmacSha512Id)) {
ctx->alg_id = CALG_SHA_512;
ctx->providers = xmlSecMSCryptoProviderInfo_Hmac;
} else
#endif /* XMLSEC_NO_SHA512 */
#ifndef XMLSEC_NO_MD5
if(xmlSecTransformCheckId(transform, xmlSecMSCryptoTransformHmacMd5Id)) {
ctx->alg_id = CALG_MD5;
ctx->providers = xmlSecMSCryptoProviderInfo_Hmac;
} else
#endif /* XMLSEC_NO_MD5 */
/* not found */
{
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
NULL,
XMLSEC_ERRORS_R_INVALID_TRANSFORM,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
ctx->provider = xmlSecMSCryptoFindProvider(ctx->providers, NULL, CRYPT_VERIFYCONTEXT, TRUE);
if(ctx->provider == 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlSecMSCryptoFindProvider",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
/* Create dummy key to be able to import plain session keys */
if (!xmlSecMSCryptoCreatePrivateExponentOneKey(ctx->provider, &(ctx->pubPrivKey))) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlSecMSCryptoCreatePrivateExponentOneKey",
XMLSEC_ERRORS_R_CRYPTO_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
return(0);
}