diff options
Diffstat (limited to 'src/nss/kw_des.c')
-rw-r--r-- | src/nss/kw_des.c | 663 |
1 files changed, 663 insertions, 0 deletions
diff --git a/src/nss/kw_des.c b/src/nss/kw_des.c new file mode 100644 index 00000000..e75f69c9 --- /dev/null +++ b/src/nss/kw_des.c @@ -0,0 +1,663 @@ +/** + * + * XMLSec library + * + * DES KW Algorithm support + * + * This is free software; see Copyright file in the source + * distribution for preciese wording. + * + * Copyright (c) 2003 America Online, Inc. All rights reserved. + * Copyright (C) 2002-2003 Aleksey Sanin <aleksey@aleksey.com> + */ +#ifndef XMLSEC_NO_DES +#include "globals.h" + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +#include <nss.h> +#include <pk11func.h> +#include <hasht.h> + +#include <xmlsec/xmlsec.h> +#include <xmlsec/xmltree.h> +#include <xmlsec/keys.h> +#include <xmlsec/transforms.h> +#include <xmlsec/errors.h> + +#include <xmlsec/nss/crypto.h> + +#include "../kw_aes_des.h" + +/********************************************************************* + * + * DES KW implementation + * + *********************************************************************/ +static int xmlSecNssKWDes3GenerateRandom (void * context, + xmlSecByte * out, + xmlSecSize outSize); +static int xmlSecNssKWDes3Sha1 (void * context, + const xmlSecByte * in, + xmlSecSize inSize, + xmlSecByte * out, + xmlSecSize outSize); +static int xmlSecNssKWDes3BlockEncrypt (void * context, + const xmlSecByte * iv, + xmlSecSize ivSize, + const xmlSecByte * in, + xmlSecSize inSize, + xmlSecByte * out, + xmlSecSize outSize); +static int xmlSecNssKWDes3BlockDecrypt (void * context, + const xmlSecByte * iv, + xmlSecSize ivSize, + const xmlSecByte * in, + xmlSecSize inSize, + xmlSecByte * out, + xmlSecSize outSize); + +static xmlSecKWDes3Klass xmlSecNssKWDes3ImplKlass = { + /* callbacks */ + xmlSecNssKWDes3GenerateRandom, /* xmlSecKWDes3GenerateRandomMethod generateRandom; */ + xmlSecNssKWDes3Sha1, /* xmlSecKWDes3Sha1Method sha1; */ + xmlSecNssKWDes3BlockEncrypt, /* xmlSecKWDes3BlockEncryptMethod encrypt; */ + xmlSecNssKWDes3BlockDecrypt, /* xmlSecKWDes3BlockDecryptMethod decrypt; */ + + /* for the future */ + NULL, /* void* reserved0; */ + NULL, /* void* reserved1; */ +}; + +static int xmlSecNssKWDes3Encrypt (const xmlSecByte *key, + xmlSecSize keySize, + const xmlSecByte *iv, + xmlSecSize ivSize, + const xmlSecByte *in, + xmlSecSize inSize, + xmlSecByte *out, + xmlSecSize outSize, + int enc); + + +/********************************************************************* + * + * Triple DES Key Wrap transform + * + * key (xmlSecBuffer) is located after xmlSecTransform structure + * + ********************************************************************/ +typedef struct _xmlSecNssKWDes3Ctx xmlSecNssKWDes3Ctx, + *xmlSecNssKWDes3CtxPtr; +struct _xmlSecNssKWDes3Ctx { + xmlSecBuffer keyBuffer; +}; +#define xmlSecNssKWDes3Size \ + (sizeof(xmlSecTransform) + sizeof(xmlSecNssKWDes3Ctx)) +#define xmlSecNssKWDes3GetCtx(transform) \ + ((xmlSecNssKWDes3CtxPtr)(((xmlSecByte*)(transform)) + sizeof(xmlSecTransform))) + +static int xmlSecNssKWDes3Initialize (xmlSecTransformPtr transform); +static void xmlSecNssKWDes3Finalize (xmlSecTransformPtr transform); +static int xmlSecNssKWDes3SetKeyReq (xmlSecTransformPtr transform, + xmlSecKeyReqPtr keyReq); +static int xmlSecNssKWDes3SetKey (xmlSecTransformPtr transform, + xmlSecKeyPtr key); +static int xmlSecNssKWDes3Execute (xmlSecTransformPtr transform, + int last, + xmlSecTransformCtxPtr transformCtx); +static xmlSecTransformKlass xmlSecNssKWDes3Klass = { + /* klass/object sizes */ + sizeof(xmlSecTransformKlass), /* xmlSecSize klassSize */ + xmlSecNssKWDes3Size, /* xmlSecSize objSize */ + + xmlSecNameKWDes3, /* const xmlChar* name; */ + xmlSecHrefKWDes3, /* const xmlChar* href; */ + xmlSecTransformUsageEncryptionMethod, /* xmlSecAlgorithmUsage usage; */ + + xmlSecNssKWDes3Initialize, /* xmlSecTransformInitializeMethod initialize; */ + xmlSecNssKWDes3Finalize, /* xmlSecTransformFinalizeMethod finalize; */ + NULL, /* xmlSecTransformNodeReadMethod readNode; */ + NULL, /* xmlSecTransformNodeWriteMethod writeNode; */ + xmlSecNssKWDes3SetKeyReq, /* xmlSecTransformSetKeyMethod setKeyReq; */ + xmlSecNssKWDes3SetKey, /* xmlSecTransformSetKeyMethod setKey; */ + NULL, /* xmlSecTransformValidateMethod validate; */ + xmlSecTransformDefaultGetDataType, /* xmlSecTransformGetDataTypeMethod getDataType; */ + xmlSecTransformDefaultPushBin, /* xmlSecTransformPushBinMethod pushBin; */ + xmlSecTransformDefaultPopBin, /* xmlSecTransformPopBinMethod popBin; */ + NULL, /* xmlSecTransformPushXmlMethod pushXml; */ + NULL, /* xmlSecTransformPopXmlMethod popXml; */ + xmlSecNssKWDes3Execute, /* xmlSecTransformExecuteMethod execute; */ + + NULL, /* void* reserved0; */ + NULL, /* void* reserved1; */ +}; + +/** + * xmlSecNssTransformKWDes3GetKlass: + * + * The Triple DES key wrapper transform klass. + * + * Returns: Triple DES key wrapper transform klass. + */ +xmlSecTransformId +xmlSecNssTransformKWDes3GetKlass(void) { + return(&xmlSecNssKWDes3Klass); +} + +static int +xmlSecNssKWDes3Initialize(xmlSecTransformPtr transform) { + xmlSecNssKWDes3CtxPtr ctx; + int ret; + + xmlSecAssert2(xmlSecTransformCheckId(transform, xmlSecNssTransformKWDes3Id), -1); + xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecNssKWDes3Size), -1); + + ctx = xmlSecNssKWDes3GetCtx(transform); + xmlSecAssert2(ctx != NULL, -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); + } + + return(0); +} + +static void +xmlSecNssKWDes3Finalize(xmlSecTransformPtr transform) { + xmlSecNssKWDes3CtxPtr ctx; + + xmlSecAssert(xmlSecTransformCheckId(transform, xmlSecNssTransformKWDes3Id)); + xmlSecAssert(xmlSecTransformCheckSize(transform, xmlSecNssKWDes3Size)); + + ctx = xmlSecNssKWDes3GetCtx(transform); + xmlSecAssert(ctx != NULL); + + xmlSecBufferFinalize(&(ctx->keyBuffer)); +} + +static int +xmlSecNssKWDes3SetKeyReq(xmlSecTransformPtr transform, xmlSecKeyReqPtr keyReq) { + xmlSecNssKWDes3CtxPtr ctx; + + xmlSecAssert2(xmlSecTransformCheckId(transform, xmlSecNssTransformKWDes3Id), -1); + xmlSecAssert2((transform->operation == xmlSecTransformOperationEncrypt) || (transform->operation == xmlSecTransformOperationDecrypt), -1); + xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecNssKWDes3Size), -1); + xmlSecAssert2(keyReq != NULL, -1); + + ctx = xmlSecNssKWDes3GetCtx(transform); + xmlSecAssert2(ctx != NULL, -1); + + keyReq->keyId = xmlSecNssKeyDataDesId; + keyReq->keyType = xmlSecKeyDataTypeSymmetric; + if(transform->operation == xmlSecTransformOperationEncrypt) { + keyReq->keyUsage= xmlSecKeyUsageEncrypt; + } else { + keyReq->keyUsage= xmlSecKeyUsageDecrypt; + } + keyReq->keyBitsSize = 8 * XMLSEC_KW_DES3_KEY_LENGTH; + return(0); +} + +static int +xmlSecNssKWDes3SetKey(xmlSecTransformPtr transform, xmlSecKeyPtr key) { + xmlSecNssKWDes3CtxPtr ctx; + xmlSecBufferPtr buffer; + xmlSecSize keySize; + int ret; + + xmlSecAssert2(xmlSecTransformCheckId(transform, xmlSecNssTransformKWDes3Id), -1); + xmlSecAssert2((transform->operation == xmlSecTransformOperationEncrypt) || (transform->operation == xmlSecTransformOperationDecrypt), -1); + xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecNssKWDes3Size), -1); + xmlSecAssert2(key != NULL, -1); + xmlSecAssert2(xmlSecKeyDataCheckId(xmlSecKeyGetValue(key), xmlSecNssKeyDataDesId), -1); + + ctx = xmlSecNssKWDes3GetCtx(transform); + xmlSecAssert2(ctx != NULL, -1); + + buffer = xmlSecKeyDataBinaryValueGetBuffer(xmlSecKeyGetValue(key)); + xmlSecAssert2(buffer != NULL, -1); + + keySize = xmlSecBufferGetSize(buffer); + if(keySize < XMLSEC_KW_DES3_KEY_LENGTH) { + xmlSecError(XMLSEC_ERRORS_HERE, + xmlSecErrorsSafeString(xmlSecTransformGetName(transform)), + NULL, + XMLSEC_ERRORS_R_INVALID_KEY_DATA_SIZE, + "key length %d is not enough (%d expected)", + keySize, XMLSEC_KW_DES3_KEY_LENGTH); + return(-1); + } + + ret = xmlSecBufferSetData(&(ctx->keyBuffer), xmlSecBufferGetData(buffer), XMLSEC_KW_DES3_KEY_LENGTH); + if(ret < 0) { + xmlSecError(XMLSEC_ERRORS_HERE, + xmlSecErrorsSafeString(xmlSecTransformGetName(transform)), + "xmlSecBufferSetData", + XMLSEC_ERRORS_R_XMLSEC_FAILED, + "size=%d", XMLSEC_KW_DES3_KEY_LENGTH); + return(-1); + } + + return(0); +} + +static int +xmlSecNssKWDes3Execute(xmlSecTransformPtr transform, int last, xmlSecTransformCtxPtr transformCtx) { + xmlSecNssKWDes3CtxPtr ctx; + xmlSecBufferPtr in, out; + xmlSecSize inSize, outSize, keySize; + int ret; + + xmlSecAssert2(xmlSecTransformCheckId(transform, xmlSecNssTransformKWDes3Id), -1); + xmlSecAssert2((transform->operation == xmlSecTransformOperationEncrypt) || (transform->operation == xmlSecTransformOperationDecrypt), -1); + xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecNssKWDes3Size), -1); + xmlSecAssert2(transformCtx != NULL, -1); + + ctx = xmlSecNssKWDes3GetCtx(transform); + xmlSecAssert2(ctx != NULL, -1); + + keySize = xmlSecBufferGetSize(&(ctx->keyBuffer)); + xmlSecAssert2(keySize == XMLSEC_KW_DES3_KEY_LENGTH, -1); + + in = &(transform->inBuf); + out = &(transform->outBuf); + inSize = xmlSecBufferGetSize(in); + outSize = xmlSecBufferGetSize(out); + xmlSecAssert2(outSize == 0, -1); + + if(transform->status == xmlSecTransformStatusNone) { + transform->status = xmlSecTransformStatusWorking; + } + + if((transform->status == xmlSecTransformStatusWorking) && (last == 0)) { + /* just do nothing */ + } else if((transform->status == xmlSecTransformStatusWorking) && (last != 0)) { + if((inSize % XMLSEC_KW_DES3_BLOCK_LENGTH) != 0) { + xmlSecError(XMLSEC_ERRORS_HERE, + xmlSecErrorsSafeString(xmlSecTransformGetName(transform)), + NULL, + XMLSEC_ERRORS_R_INVALID_SIZE, + "%d bytes - not %d bytes aligned", + inSize, XMLSEC_KW_DES3_BLOCK_LENGTH); + return(-1); + } + + if(transform->operation == xmlSecTransformOperationEncrypt) { + /* the encoded key might be 16 bytes longer plus one block just in case */ + outSize = inSize + XMLSEC_KW_DES3_IV_LENGTH + + XMLSEC_KW_DES3_BLOCK_LENGTH + + XMLSEC_KW_DES3_BLOCK_LENGTH; + } else { + /* just in case, add a block */ + outSize = inSize + XMLSEC_KW_DES3_BLOCK_LENGTH; + } + + ret = xmlSecBufferSetMaxSize(out, outSize); + if(ret < 0) { + xmlSecError(XMLSEC_ERRORS_HERE, + xmlSecErrorsSafeString(xmlSecTransformGetName(transform)), + "xmlSecBufferSetMaxSize", + XMLSEC_ERRORS_R_XMLSEC_FAILED, + "size=%d", outSize); + return(-1); + } + + if(transform->operation == xmlSecTransformOperationEncrypt) { + ret = xmlSecKWDes3Encode(&xmlSecNssKWDes3ImplKlass, ctx, + xmlSecBufferGetData(in), inSize, + xmlSecBufferGetData(out), outSize); + if(ret < 0) { + xmlSecError(XMLSEC_ERRORS_HERE, + xmlSecErrorsSafeString(xmlSecTransformGetName(transform)), + "xmlSecKWDes3Encode", + XMLSEC_ERRORS_R_XMLSEC_FAILED, + "key=%d,in=%d,out=%d", + keySize, inSize, outSize); + return(-1); + } + outSize = ret; + } else { + ret = xmlSecKWDes3Decode(&xmlSecNssKWDes3ImplKlass, ctx, + xmlSecBufferGetData(in), inSize, + xmlSecBufferGetData(out), outSize); + if(ret < 0) { + xmlSecError(XMLSEC_ERRORS_HERE, + xmlSecErrorsSafeString(xmlSecTransformGetName(transform)), + "xmlSecKWDes3Decode", + XMLSEC_ERRORS_R_XMLSEC_FAILED, + "key=%d,in=%d,out=%d", + keySize, inSize, outSize); + return(-1); + } + outSize = ret; + } + + ret = xmlSecBufferSetSize(out, outSize); + if(ret < 0) { + xmlSecError(XMLSEC_ERRORS_HERE, + xmlSecErrorsSafeString(xmlSecTransformGetName(transform)), + "xmlSecBufferSetSize", + XMLSEC_ERRORS_R_XMLSEC_FAILED, + "size=%d", outSize); + return(-1); + } + + ret = xmlSecBufferRemoveHead(in, inSize); + if(ret < 0) { + xmlSecError(XMLSEC_ERRORS_HERE, + xmlSecErrorsSafeString(xmlSecTransformGetName(transform)), + "xmlSecBufferRemoveHead", + XMLSEC_ERRORS_R_XMLSEC_FAILED, + "size=%d", inSize); + return(-1); + } + + transform->status = xmlSecTransformStatusFinished; + } else if(transform->status == xmlSecTransformStatusFinished) { + /* the only way we can get here is if there is no input */ + xmlSecAssert2(xmlSecBufferGetSize(&(transform->inBuf)) == 0, -1); + } else { + xmlSecError(XMLSEC_ERRORS_HERE, + xmlSecErrorsSafeString(xmlSecTransformGetName(transform)), + NULL, + XMLSEC_ERRORS_R_INVALID_STATUS, + "status=%d", transform->status); + return(-1); + } + return(0); +} + +/********************************************************************* + * + * DES KW implementation + * + *********************************************************************/ +static int +xmlSecNssKWDes3Sha1(void * context, + const xmlSecByte * in, xmlSecSize inSize, + xmlSecByte * out, xmlSecSize outSize) { + xmlSecNssKWDes3CtxPtr ctx = (xmlSecNssKWDes3CtxPtr)context; + PK11Context *pk11ctx = NULL; + unsigned int outLen = 0; + SECStatus status; + + xmlSecAssert2(ctx != NULL, -1); + xmlSecAssert2(in != NULL, -1); + xmlSecAssert2(inSize > 0, -1); + xmlSecAssert2(out != NULL, -1); + xmlSecAssert2(outSize >= SHA1_LENGTH, -1); + + /* Create a pk11ctx for hashing (digesting) */ + pk11ctx = PK11_CreateDigestContext(SEC_OID_SHA1); + if (pk11ctx == NULL) { + xmlSecError(XMLSEC_ERRORS_HERE, + NULL, + "PK11_CreateDigestContext", + XMLSEC_ERRORS_R_CRYPTO_FAILED, + XMLSEC_ERRORS_NO_MESSAGE); + return(-1); + } + + status = PK11_DigestBegin(pk11ctx); + if (status != SECSuccess) { + xmlSecError(XMLSEC_ERRORS_HERE, + NULL, + "PK11_DigestBegin", + XMLSEC_ERRORS_R_CRYPTO_FAILED, + XMLSEC_ERRORS_NO_MESSAGE); + PK11_DestroyContext(pk11ctx, PR_TRUE); + return(-1); + } + + status = PK11_DigestOp(pk11ctx, in, inSize); + if (status != SECSuccess) { + xmlSecError(XMLSEC_ERRORS_HERE, + NULL, + "PK11_DigestOp", + XMLSEC_ERRORS_R_CRYPTO_FAILED, + XMLSEC_ERRORS_NO_MESSAGE); + PK11_DestroyContext(pk11ctx, PR_TRUE); + return(-1); + } + + status = PK11_DigestFinal(pk11ctx, out, &outLen, outSize); + if (status != SECSuccess) { + xmlSecError(XMLSEC_ERRORS_HERE, + NULL, + "PK11_DigestFinal", + XMLSEC_ERRORS_R_CRYPTO_FAILED, + XMLSEC_ERRORS_NO_MESSAGE); + PK11_DestroyContext(pk11ctx, PR_TRUE); + return(-1); + } + + /* done */ + PK11_DestroyContext(pk11ctx, PR_TRUE); + xmlSecAssert2(outLen == SHA1_LENGTH, -1); + return(outLen); +} + +static int +xmlSecNssKWDes3GenerateRandom(void * context, + xmlSecByte * out, xmlSecSize outSize) { + xmlSecNssKWDes3CtxPtr ctx = (xmlSecNssKWDes3CtxPtr)context; + SECStatus status; + + xmlSecAssert2(ctx != NULL, -1); + xmlSecAssert2(out != NULL, -1); + xmlSecAssert2(outSize > 0, -1); + + status = PK11_GenerateRandom(out, outSize); + if(status != SECSuccess) { + xmlSecError(XMLSEC_ERRORS_HERE, + NULL, + "PK11_GenerateRandom", + XMLSEC_ERRORS_R_CRYPTO_FAILED, + XMLSEC_ERRORS_NO_MESSAGE); + return(-1); + } + + return((int)outSize); +} + +static int +xmlSecNssKWDes3BlockEncrypt(void * context, + const xmlSecByte * iv, xmlSecSize ivSize, + const xmlSecByte * in, xmlSecSize inSize, + xmlSecByte * out, xmlSecSize outSize) { + xmlSecNssKWDes3CtxPtr ctx = (xmlSecNssKWDes3CtxPtr)context; + int ret; + + xmlSecAssert2(ctx != NULL, -1); + xmlSecAssert2(xmlSecBufferGetData(&(ctx->keyBuffer)) != NULL, -1); + xmlSecAssert2(xmlSecBufferGetSize(&(ctx->keyBuffer)) >= XMLSEC_KW_DES3_KEY_LENGTH, -1); + xmlSecAssert2(iv != NULL, -1); + xmlSecAssert2(ivSize >= XMLSEC_KW_DES3_IV_LENGTH, -1); + xmlSecAssert2(in != NULL, -1); + xmlSecAssert2(inSize > 0, -1); + xmlSecAssert2(out != NULL, -1); + xmlSecAssert2(outSize >= inSize, -1); + + ret = xmlSecNssKWDes3Encrypt(xmlSecBufferGetData(&(ctx->keyBuffer)), XMLSEC_KW_DES3_KEY_LENGTH, + iv, XMLSEC_KW_DES3_IV_LENGTH, + in, inSize, + out, outSize, + 1); /* encrypt */ + if(ret < 0) { + xmlSecError(XMLSEC_ERRORS_HERE, + NULL, + "xmlSecNssKWDes3Encrypt", + XMLSEC_ERRORS_R_XMLSEC_FAILED, + XMLSEC_ERRORS_NO_MESSAGE); + return(-1); + } + + return(ret); +} + +static int +xmlSecNssKWDes3BlockDecrypt(void * context, + const xmlSecByte * iv, xmlSecSize ivSize, + const xmlSecByte * in, xmlSecSize inSize, + xmlSecByte * out, xmlSecSize outSize) { + xmlSecNssKWDes3CtxPtr ctx = (xmlSecNssKWDes3CtxPtr)context; + int ret; + + xmlSecAssert2(ctx != NULL, -1); + xmlSecAssert2(xmlSecBufferGetData(&(ctx->keyBuffer)) != NULL, -1); + xmlSecAssert2(xmlSecBufferGetSize(&(ctx->keyBuffer)) >= XMLSEC_KW_DES3_KEY_LENGTH, -1); + xmlSecAssert2(iv != NULL, -1); + xmlSecAssert2(ivSize >= XMLSEC_KW_DES3_IV_LENGTH, -1); + xmlSecAssert2(in != NULL, -1); + xmlSecAssert2(inSize > 0, -1); + xmlSecAssert2(out != NULL, -1); + xmlSecAssert2(outSize >= inSize, -1); + + ret = xmlSecNssKWDes3Encrypt(xmlSecBufferGetData(&(ctx->keyBuffer)), XMLSEC_KW_DES3_KEY_LENGTH, + iv, XMLSEC_KW_DES3_IV_LENGTH, + in, inSize, + out, outSize, + 0); /* decrypt */ + if(ret < 0) { + xmlSecError(XMLSEC_ERRORS_HERE, + NULL, + "xmlSecNssKWDes3Encrypt", + XMLSEC_ERRORS_R_XMLSEC_FAILED, + XMLSEC_ERRORS_NO_MESSAGE); + return(-1); + } + + return(ret); +} + + + +static int +xmlSecNssKWDes3Encrypt(const xmlSecByte *key, xmlSecSize keySize, + const xmlSecByte *iv, xmlSecSize ivSize, + const xmlSecByte *in, xmlSecSize inSize, + xmlSecByte *out, xmlSecSize outSize, + int enc) { + CK_MECHANISM_TYPE cipherMech; + PK11SlotInfo* slot = NULL; + PK11SymKey* symKey = NULL; + SECItem* param = NULL; + PK11Context* pk11ctx = NULL; + SECItem keyItem, ivItem; + SECStatus status; + int result_len = -1; + int tmp1_outlen; + unsigned int tmp2_outlen; + + xmlSecAssert2(key != NULL, -1); + xmlSecAssert2(keySize == XMLSEC_KW_DES3_KEY_LENGTH, -1); + xmlSecAssert2(iv != NULL, -1); + xmlSecAssert2(ivSize == XMLSEC_KW_DES3_IV_LENGTH, -1); + xmlSecAssert2(in != NULL, -1); + xmlSecAssert2(inSize > 0, -1); + xmlSecAssert2(out != NULL, -1); + xmlSecAssert2(outSize >= inSize, -1); + + cipherMech = CKM_DES3_CBC; + slot = PK11_GetBestSlot(cipherMech, NULL); + if (slot == NULL) { + xmlSecError(XMLSEC_ERRORS_HERE, + NULL, + "PK11_GetBestSlot", + XMLSEC_ERRORS_R_CRYPTO_FAILED, + XMLSEC_ERRORS_NO_MESSAGE); + goto done; + } + + keyItem.data = (unsigned char *)key; + keyItem.len = keySize; + symKey = PK11_ImportSymKey(slot, cipherMech, PK11_OriginUnwrap, + enc ? CKA_ENCRYPT : CKA_DECRYPT, &keyItem, NULL); + if (symKey == NULL) { + xmlSecError(XMLSEC_ERRORS_HERE, + NULL, + "PK11_ImportSymKey", + XMLSEC_ERRORS_R_CRYPTO_FAILED, + XMLSEC_ERRORS_NO_MESSAGE); + goto done; + } + + ivItem.data = (unsigned char *)iv; + ivItem.len = ivSize; + + param = PK11_ParamFromIV(cipherMech, &ivItem); + if (param == NULL) { + xmlSecError(XMLSEC_ERRORS_HERE, + NULL, + "PK11_ParamFromIV", + XMLSEC_ERRORS_R_CRYPTO_FAILED, + XMLSEC_ERRORS_NO_MESSAGE); + goto done; + } + + pk11ctx = PK11_CreateContextBySymKey(cipherMech, + enc ? CKA_ENCRYPT : CKA_DECRYPT, + symKey, param); + if (pk11ctx == NULL) { + xmlSecError(XMLSEC_ERRORS_HERE, + NULL, + "PK11_CreateContextBySymKey", + XMLSEC_ERRORS_R_CRYPTO_FAILED, + XMLSEC_ERRORS_NO_MESSAGE); + goto done; + } + + tmp1_outlen = tmp2_outlen = 0; + status = PK11_CipherOp(pk11ctx, out, &tmp1_outlen, outSize, + (unsigned char *)in, inSize); + if (status != SECSuccess) { + xmlSecError(XMLSEC_ERRORS_HERE, + NULL, + "PK11_CipherOp", + XMLSEC_ERRORS_R_CRYPTO_FAILED, + XMLSEC_ERRORS_NO_MESSAGE); + goto done; + } + + status = PK11_DigestFinal(pk11ctx, out+tmp1_outlen, + &tmp2_outlen, outSize-tmp1_outlen); + if (status != SECSuccess) { + xmlSecError(XMLSEC_ERRORS_HERE, + NULL, + "PK11_DigestFinal", + XMLSEC_ERRORS_R_CRYPTO_FAILED, + XMLSEC_ERRORS_NO_MESSAGE); + goto done; + } + + result_len = tmp1_outlen + tmp2_outlen; + +done: + if (slot) { + PK11_FreeSlot(slot); + } + if (symKey) { + PK11_FreeSymKey(symKey); + } + if (param) { + SECITEM_FreeItem(param, PR_TRUE); + } + if (pk11ctx) { + PK11_DestroyContext(pk11ctx, PR_TRUE); + } + + return(result_len); +} + + +#endif /* XMLSEC_NO_DES */ + |