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-rw-r--r--src/nss/ciphers.c838
1 files changed, 838 insertions, 0 deletions
diff --git a/src/nss/ciphers.c b/src/nss/ciphers.c
new file mode 100644
index 00000000..54bd2af2
--- /dev/null
+++ b/src/nss/ciphers.c
@@ -0,0 +1,838 @@
+/**
+ * XMLSec library
+ *
+ * This is free software; see Copyright file in the source
+ * distribution for preciese wording.
+ *
+ * Copyright (C) 2002-2003 Aleksey Sanin <aleksey@aleksey.com>
+ * Copyright (c) 2003 America Online, Inc. All rights reserved.
+ */
+#include "globals.h"
+
+#include <string.h>
+
+#include <nspr.h>
+#include <nss.h>
+#include <secoid.h>
+#include <pk11func.h>
+
+#include <xmlsec/xmlsec.h>
+#include <xmlsec/keys.h>
+#include <xmlsec/transforms.h>
+#include <xmlsec/errors.h>
+
+#include <xmlsec/nss/crypto.h>
+
+#define XMLSEC_NSS_MAX_KEY_SIZE 32
+#define XMLSEC_NSS_MAX_IV_SIZE 32
+#define XMLSEC_NSS_MAX_BLOCK_SIZE 32
+
+/**************************************************************************
+ *
+ * Internal Nss Block cipher CTX
+ *
+ *****************************************************************************/
+typedef struct _xmlSecNssBlockCipherCtx xmlSecNssBlockCipherCtx,
+ *xmlSecNssBlockCipherCtxPtr;
+struct _xmlSecNssBlockCipherCtx {
+ CK_MECHANISM_TYPE cipher;
+ PK11Context* cipherCtx;
+ xmlSecKeyDataId keyId;
+ int keyInitialized;
+ int ctxInitialized;
+ xmlSecByte key[XMLSEC_NSS_MAX_KEY_SIZE];
+ xmlSecSize keySize;
+ xmlSecByte iv[XMLSEC_NSS_MAX_IV_SIZE];
+ xmlSecSize ivSize;
+};
+static int xmlSecNssBlockCipherCtxInit (xmlSecNssBlockCipherCtxPtr ctx,
+ xmlSecBufferPtr in,
+ xmlSecBufferPtr out,
+ int encrypt,
+ const xmlChar* cipherName,
+ xmlSecTransformCtxPtr transformCtx);
+static int xmlSecNssBlockCipherCtxUpdate (xmlSecNssBlockCipherCtxPtr ctx,
+ xmlSecBufferPtr in,
+ xmlSecBufferPtr out,
+ int encrypt,
+ const xmlChar* cipherName,
+ xmlSecTransformCtxPtr transformCtx);
+static int xmlSecNssBlockCipherCtxFinal (xmlSecNssBlockCipherCtxPtr ctx,
+ xmlSecBufferPtr in,
+ xmlSecBufferPtr out,
+ int encrypt,
+ const xmlChar* cipherName,
+ xmlSecTransformCtxPtr transformCtx);
+static int
+xmlSecNssBlockCipherCtxInit(xmlSecNssBlockCipherCtxPtr ctx,
+ xmlSecBufferPtr in, xmlSecBufferPtr out,
+ int encrypt,
+ const xmlChar* cipherName,
+ xmlSecTransformCtxPtr transformCtx) {
+ SECItem keyItem;
+ SECItem ivItem;
+ PK11SlotInfo* slot;
+ PK11SymKey* symKey;
+ int ivLen;
+ SECStatus rv;
+ int ret;
+
+ xmlSecAssert2(ctx != NULL, -1);
+ xmlSecAssert2(ctx->cipher != 0, -1);
+ xmlSecAssert2(ctx->cipherCtx == NULL, -1);
+ xmlSecAssert2(ctx->keyInitialized != 0, -1);
+ xmlSecAssert2(ctx->ctxInitialized == 0, -1);
+ xmlSecAssert2(in != NULL, -1);
+ xmlSecAssert2(out != NULL, -1);
+ xmlSecAssert2(transformCtx != NULL, -1);
+
+ ivLen = PK11_GetIVLength(ctx->cipher);
+ xmlSecAssert2(ivLen > 0, -1);
+ xmlSecAssert2((xmlSecSize)ivLen <= sizeof(ctx->iv), -1);
+
+ if(encrypt) {
+ /* generate random iv */
+ rv = PK11_GenerateRandom(ctx->iv, ivLen);
+ if(rv != SECSuccess) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "PK11_GenerateRandom",
+ XMLSEC_ERRORS_R_CRYPTO_FAILED,
+ "size=%d", ivLen);
+ return(-1);
+ }
+
+ /* write iv to the output */
+ ret = xmlSecBufferAppend(out, ctx->iv, ivLen);
+ if(ret < 0) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "xmlSecBufferAppend",
+ XMLSEC_ERRORS_R_XMLSEC_FAILED,
+ "size=%d", ivLen);
+ return(-1);
+ }
+
+ } else {
+ /* if we don't have enough data, exit and hope that
+ * we'll have iv next time */
+ if(xmlSecBufferGetSize(in) < (xmlSecSize)ivLen) {
+ return(0);
+ }
+
+ /* copy iv to our buffer*/
+ xmlSecAssert2(xmlSecBufferGetData(in) != NULL, -1);
+ memcpy(ctx->iv, xmlSecBufferGetData(in), ivLen);
+
+ /* and remove from input */
+ ret = xmlSecBufferRemoveHead(in, ivLen);
+ if(ret < 0) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "xmlSecBufferRemoveHead",
+ XMLSEC_ERRORS_R_XMLSEC_FAILED,
+ "size=%d", ivLen);
+ return(-1);
+ }
+ }
+
+ memset(&keyItem, 0, sizeof(keyItem));
+ keyItem.data = ctx->key;
+ keyItem.len = ctx->keySize;
+ memset(&ivItem, 0, sizeof(ivItem));
+ ivItem.data = ctx->iv;
+ ivItem.len = ctx->ivSize;
+
+ slot = PK11_GetBestSlot(ctx->cipher, NULL);
+ if(slot == NULL) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "PK11_GetBestSlot",
+ XMLSEC_ERRORS_R_CRYPTO_FAILED,
+ XMLSEC_ERRORS_NO_MESSAGE);
+ return(-1);
+ }
+
+ symKey = PK11_ImportSymKey(slot, ctx->cipher, PK11_OriginDerive,
+ CKA_SIGN, &keyItem, NULL);
+ if(symKey == NULL) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "PK11_ImportSymKey",
+ XMLSEC_ERRORS_R_CRYPTO_FAILED,
+ XMLSEC_ERRORS_NO_MESSAGE);
+ PK11_FreeSlot(slot);
+ return(-1);
+ }
+
+ ctx->cipherCtx = PK11_CreateContextBySymKey(ctx->cipher,
+ (encrypt) ? CKA_ENCRYPT : CKA_DECRYPT,
+ symKey, &ivItem);
+ if(ctx->cipherCtx == NULL) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "PK11_CreateContextBySymKey",
+ XMLSEC_ERRORS_R_CRYPTO_FAILED,
+ XMLSEC_ERRORS_NO_MESSAGE);
+ PK11_FreeSymKey(symKey);
+ PK11_FreeSlot(slot);
+ return(-1);
+ }
+
+ ctx->ctxInitialized = 1;
+ PK11_FreeSymKey(symKey);
+ PK11_FreeSlot(slot);
+ return(0);
+}
+
+static int
+xmlSecNssBlockCipherCtxUpdate(xmlSecNssBlockCipherCtxPtr ctx,
+ xmlSecBufferPtr in, xmlSecBufferPtr out,
+ int encrypt,
+ const xmlChar* cipherName,
+ xmlSecTransformCtxPtr transformCtx) {
+ xmlSecSize inSize, inBlocks, outSize;
+ int blockLen;
+ int outLen = 0;
+ xmlSecByte* outBuf;
+ SECStatus rv;
+ int ret;
+
+ xmlSecAssert2(ctx != NULL, -1);
+ xmlSecAssert2(ctx->cipher != 0, -1);
+ xmlSecAssert2(ctx->cipherCtx != NULL, -1);
+ xmlSecAssert2(ctx->ctxInitialized != 0, -1);
+ xmlSecAssert2(in != NULL, -1);
+ xmlSecAssert2(out != NULL, -1);
+ xmlSecAssert2(transformCtx != NULL, -1);
+
+ blockLen = PK11_GetBlockSize(ctx->cipher, NULL);
+ xmlSecAssert2(blockLen > 0, -1);
+
+ inSize = xmlSecBufferGetSize(in);
+ outSize = xmlSecBufferGetSize(out);
+
+ if(inSize < (xmlSecSize)blockLen) {
+ return(0);
+ }
+
+ if(encrypt) {
+ inBlocks = inSize / ((xmlSecSize)blockLen);
+ } else {
+ /* we want to have the last block in the input buffer
+ * for padding check */
+ inBlocks = (inSize - 1) / ((xmlSecSize)blockLen);
+ }
+ inSize = inBlocks * ((xmlSecSize)blockLen);
+
+ /* we write out the input size plus may be one block */
+ ret = xmlSecBufferSetMaxSize(out, outSize + inSize + blockLen);
+ if(ret < 0) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "xmlSecBufferSetMaxSize",
+ XMLSEC_ERRORS_R_XMLSEC_FAILED,
+ "size=%d", outSize + inSize + blockLen);
+ return(-1);
+ }
+ outBuf = xmlSecBufferGetData(out) + outSize;
+
+ rv = PK11_CipherOp(ctx->cipherCtx, outBuf, &outLen, inSize + blockLen,
+ xmlSecBufferGetData(in), inSize);
+ if(rv != SECSuccess) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "PK11_CipherOp",
+ XMLSEC_ERRORS_R_CRYPTO_FAILED,
+ XMLSEC_ERRORS_NO_MESSAGE);
+ return(-1);
+ }
+ xmlSecAssert2((xmlSecSize)outLen == inSize, -1);
+
+ /* set correct output buffer size */
+ ret = xmlSecBufferSetSize(out, outSize + outLen);
+ if(ret < 0) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "xmlSecBufferSetSize",
+ XMLSEC_ERRORS_R_XMLSEC_FAILED,
+ "size=%d", outSize + outLen);
+ return(-1);
+ }
+
+ /* remove the processed block from input */
+ ret = xmlSecBufferRemoveHead(in, inSize);
+ if(ret < 0) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "xmlSecBufferRemoveHead",
+ XMLSEC_ERRORS_R_XMLSEC_FAILED,
+ "size=%d", inSize);
+ return(-1);
+ }
+ return(0);
+}
+
+static int
+xmlSecNssBlockCipherCtxFinal(xmlSecNssBlockCipherCtxPtr ctx,
+ xmlSecBufferPtr in,
+ xmlSecBufferPtr out,
+ int encrypt,
+ const xmlChar* cipherName,
+ xmlSecTransformCtxPtr transformCtx) {
+ xmlSecSize inSize, outSize;
+ int blockLen, outLen = 0;
+ xmlSecByte* inBuf;
+ xmlSecByte* outBuf;
+ SECStatus rv;
+ int ret;
+
+ xmlSecAssert2(ctx != NULL, -1);
+ xmlSecAssert2(ctx->cipher != 0, -1);
+ xmlSecAssert2(ctx->cipherCtx != NULL, -1);
+ xmlSecAssert2(ctx->ctxInitialized != 0, -1);
+ xmlSecAssert2(in != NULL, -1);
+ xmlSecAssert2(out != NULL, -1);
+ xmlSecAssert2(transformCtx != NULL, -1);
+
+ blockLen = PK11_GetBlockSize(ctx->cipher, NULL);
+ xmlSecAssert2(blockLen > 0, -1);
+
+ inSize = xmlSecBufferGetSize(in);
+ outSize = xmlSecBufferGetSize(out);
+
+ if(encrypt != 0) {
+ xmlSecAssert2(inSize < (xmlSecSize)blockLen, -1);
+
+ /* create padding */
+ ret = xmlSecBufferSetMaxSize(in, blockLen);
+ if(ret < 0) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "xmlSecBufferSetMaxSize",
+ XMLSEC_ERRORS_R_XMLSEC_FAILED,
+ "size=%d", blockLen);
+ return(-1);
+ }
+ inBuf = xmlSecBufferGetData(in);
+
+ /* generate random padding */
+ if((xmlSecSize)blockLen > (inSize + 1)) {
+ rv = PK11_GenerateRandom(inBuf + inSize, blockLen - inSize - 1);
+ if(rv != SECSuccess) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "PK11_GenerateRandom",
+ XMLSEC_ERRORS_R_CRYPTO_FAILED,
+ "size=%d", blockLen - inSize - 1);
+ return(-1);
+ }
+ }
+ inBuf[blockLen - 1] = blockLen - inSize;
+ inSize = blockLen;
+ } else {
+ if(inSize != (xmlSecSize)blockLen) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ NULL,
+ XMLSEC_ERRORS_R_INVALID_DATA,
+ "data=%d;block=%d", inSize, blockLen);
+ return(-1);
+ }
+ }
+
+ /* process last block */
+ ret = xmlSecBufferSetMaxSize(out, outSize + 2 * blockLen);
+ if(ret < 0) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "xmlSecBufferSetMaxSize",
+ XMLSEC_ERRORS_R_XMLSEC_FAILED,
+ "size=%d", outSize + 2 * blockLen);
+ return(-1);
+ }
+ outBuf = xmlSecBufferGetData(out) + outSize;
+
+ rv = PK11_CipherOp(ctx->cipherCtx, outBuf, &outLen, 2 * blockLen,
+ xmlSecBufferGetData(in), inSize);
+ if(rv != SECSuccess) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "PK11_CipherOp",
+ XMLSEC_ERRORS_R_CRYPTO_FAILED,
+ XMLSEC_ERRORS_NO_MESSAGE);
+ return(-1);
+ }
+ xmlSecAssert2((xmlSecSize)outLen == inSize, -1);
+
+ if(encrypt == 0) {
+ /* check padding */
+ if(outLen < outBuf[blockLen - 1]) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ NULL,
+ XMLSEC_ERRORS_R_INVALID_DATA,
+ "padding=%d;buffer=%d",
+ outBuf[blockLen - 1], outLen);
+ return(-1);
+ }
+ outLen -= outBuf[blockLen - 1];
+ }
+
+ /* set correct output buffer size */
+ ret = xmlSecBufferSetSize(out, outSize + outLen);
+ if(ret < 0) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "xmlSecBufferSetSize",
+ XMLSEC_ERRORS_R_XMLSEC_FAILED,
+ "size=%d", outSize + outLen);
+ return(-1);
+ }
+
+ /* remove the processed block from input */
+ ret = xmlSecBufferRemoveHead(in, inSize);
+ if(ret < 0) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(cipherName),
+ "xmlSecBufferRemoveHead",
+ XMLSEC_ERRORS_R_XMLSEC_FAILED,
+ "size=%d", inSize);
+ return(-1);
+ }
+
+ return(0);
+}
+
+
+/******************************************************************************
+ *
+ * EVP Block Cipher transforms
+ *
+ * xmlSecNssBlockCipherCtx block is located after xmlSecTransform structure
+ *
+ *****************************************************************************/
+#define xmlSecNssBlockCipherSize \
+ (sizeof(xmlSecTransform) + sizeof(xmlSecNssBlockCipherCtx))
+#define xmlSecNssBlockCipherGetCtx(transform) \
+ ((xmlSecNssBlockCipherCtxPtr)(((xmlSecByte*)(transform)) + sizeof(xmlSecTransform)))
+
+static int xmlSecNssBlockCipherInitialize (xmlSecTransformPtr transform);
+static void xmlSecNssBlockCipherFinalize (xmlSecTransformPtr transform);
+static int xmlSecNssBlockCipherSetKeyReq (xmlSecTransformPtr transform,
+ xmlSecKeyReqPtr keyReq);
+static int xmlSecNssBlockCipherSetKey (xmlSecTransformPtr transform,
+ xmlSecKeyPtr key);
+static int xmlSecNssBlockCipherExecute (xmlSecTransformPtr transform,
+ int last,
+ xmlSecTransformCtxPtr transformCtx);
+static int xmlSecNssBlockCipherCheckId (xmlSecTransformPtr transform);
+
+
+
+static int
+xmlSecNssBlockCipherCheckId(xmlSecTransformPtr transform) {
+#ifndef XMLSEC_NO_DES
+ if(xmlSecTransformCheckId(transform, xmlSecNssTransformDes3CbcId)) {
+ return(1);
+ }
+#endif /* XMLSEC_NO_DES */
+
+#ifndef XMLSEC_NO_AES
+ if(xmlSecTransformCheckId(transform, xmlSecNssTransformAes128CbcId) ||
+ xmlSecTransformCheckId(transform, xmlSecNssTransformAes192CbcId) ||
+ xmlSecTransformCheckId(transform, xmlSecNssTransformAes256CbcId)) {
+
+ return(1);
+ }
+#endif /* XMLSEC_NO_AES */
+
+ return(0);
+}
+
+static int
+xmlSecNssBlockCipherInitialize(xmlSecTransformPtr transform) {
+ xmlSecNssBlockCipherCtxPtr ctx;
+
+ xmlSecAssert2(xmlSecNssBlockCipherCheckId(transform), -1);
+ xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecNssBlockCipherSize), -1);
+
+ ctx = xmlSecNssBlockCipherGetCtx(transform);
+ xmlSecAssert2(ctx != NULL, -1);
+
+ memset(ctx, 0, sizeof(xmlSecNssBlockCipherCtx));
+
+#ifndef XMLSEC_NO_DES
+ if(transform->id == xmlSecNssTransformDes3CbcId) {
+ ctx->cipher = CKM_DES3_CBC;
+ ctx->keyId = xmlSecNssKeyDataDesId;
+ ctx->keySize = 24;
+ } else
+#endif /* XMLSEC_NO_DES */
+
+#ifndef XMLSEC_NO_AES
+ if(transform->id == xmlSecNssTransformAes128CbcId) {
+ ctx->cipher = CKM_AES_CBC;
+ ctx->keyId = xmlSecNssKeyDataAesId;
+ ctx->keySize = 16;
+ } else if(transform->id == xmlSecNssTransformAes192CbcId) {
+ ctx->cipher = CKM_AES_CBC;
+ ctx->keyId = xmlSecNssKeyDataAesId;
+ ctx->keySize = 24;
+ } else if(transform->id == xmlSecNssTransformAes256CbcId) {
+ ctx->cipher = CKM_AES_CBC;
+ ctx->keyId = xmlSecNssKeyDataAesId;
+ ctx->keySize = 32;
+ } else
+#endif /* XMLSEC_NO_AES */
+
+ if(1) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
+ NULL,
+ XMLSEC_ERRORS_R_INVALID_TRANSFORM,
+ XMLSEC_ERRORS_NO_MESSAGE);
+ return(-1);
+ }
+
+ return(0);
+}
+
+static void
+xmlSecNssBlockCipherFinalize(xmlSecTransformPtr transform) {
+ xmlSecNssBlockCipherCtxPtr ctx;
+
+ xmlSecAssert(xmlSecNssBlockCipherCheckId(transform));
+ xmlSecAssert(xmlSecTransformCheckSize(transform, xmlSecNssBlockCipherSize));
+
+ ctx = xmlSecNssBlockCipherGetCtx(transform);
+ xmlSecAssert(ctx != NULL);
+
+ if(ctx->cipherCtx != NULL) {
+ PK11_DestroyContext(ctx->cipherCtx, PR_TRUE);
+ }
+
+ memset(ctx, 0, sizeof(xmlSecNssBlockCipherCtx));
+}
+
+static int
+xmlSecNssBlockCipherSetKeyReq(xmlSecTransformPtr transform, xmlSecKeyReqPtr keyReq) {
+ xmlSecNssBlockCipherCtxPtr ctx;
+
+ xmlSecAssert2(xmlSecNssBlockCipherCheckId(transform), -1);
+ xmlSecAssert2((transform->operation == xmlSecTransformOperationEncrypt) || (transform->operation == xmlSecTransformOperationDecrypt), -1);
+ xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecNssBlockCipherSize), -1);
+ xmlSecAssert2(keyReq != NULL, -1);
+
+ ctx = xmlSecNssBlockCipherGetCtx(transform);
+ xmlSecAssert2(ctx != NULL, -1);
+ xmlSecAssert2(ctx->keyId != NULL, -1);
+
+ keyReq->keyId = ctx->keyId;
+ keyReq->keyType = xmlSecKeyDataTypeSymmetric;
+ if(transform->operation == xmlSecTransformOperationEncrypt) {
+ keyReq->keyUsage = xmlSecKeyUsageEncrypt;
+ } else {
+ keyReq->keyUsage = xmlSecKeyUsageDecrypt;
+ }
+ keyReq->keyBitsSize = 8 * ctx->keySize;
+ return(0);
+}
+
+static int
+xmlSecNssBlockCipherSetKey(xmlSecTransformPtr transform, xmlSecKeyPtr key) {
+ xmlSecNssBlockCipherCtxPtr ctx;
+ xmlSecBufferPtr buffer;
+
+ xmlSecAssert2(xmlSecNssBlockCipherCheckId(transform), -1);
+ xmlSecAssert2((transform->operation == xmlSecTransformOperationEncrypt) || (transform->operation == xmlSecTransformOperationDecrypt), -1);
+ xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecNssBlockCipherSize), -1);
+ xmlSecAssert2(key != NULL, -1);
+
+ ctx = xmlSecNssBlockCipherGetCtx(transform);
+ xmlSecAssert2(ctx != NULL, -1);
+ xmlSecAssert2(ctx->cipher != 0, -1);
+ xmlSecAssert2(ctx->keyInitialized == 0, -1);
+ xmlSecAssert2(ctx->keyId != NULL, -1);
+ xmlSecAssert2(xmlSecKeyCheckId(key, ctx->keyId), -1);
+
+ xmlSecAssert2(ctx->keySize > 0, -1);
+ xmlSecAssert2(ctx->keySize <= sizeof(ctx->key), -1);
+
+ buffer = xmlSecKeyDataBinaryValueGetBuffer(xmlSecKeyGetValue(key));
+ xmlSecAssert2(buffer != NULL, -1);
+
+ if(xmlSecBufferGetSize(buffer) < ctx->keySize) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
+ NULL,
+ XMLSEC_ERRORS_R_INVALID_KEY_DATA_SIZE,
+ "keySize=%d;expected=%d",
+ xmlSecBufferGetSize(buffer), ctx->keySize);
+ return(-1);
+ }
+
+ xmlSecAssert2(xmlSecBufferGetData(buffer) != NULL, -1);
+ memcpy(ctx->key, xmlSecBufferGetData(buffer), ctx->keySize);
+
+ ctx->keyInitialized = 1;
+ return(0);
+}
+
+static int
+xmlSecNssBlockCipherExecute(xmlSecTransformPtr transform, int last, xmlSecTransformCtxPtr transformCtx) {
+ xmlSecNssBlockCipherCtxPtr ctx;
+ xmlSecBufferPtr in, out;
+ int ret;
+
+ xmlSecAssert2(xmlSecNssBlockCipherCheckId(transform), -1);
+ xmlSecAssert2((transform->operation == xmlSecTransformOperationEncrypt) || (transform->operation == xmlSecTransformOperationDecrypt), -1);
+ xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecNssBlockCipherSize), -1);
+ xmlSecAssert2(transformCtx != NULL, -1);
+
+ in = &(transform->inBuf);
+ out = &(transform->outBuf);
+
+ ctx = xmlSecNssBlockCipherGetCtx(transform);
+ xmlSecAssert2(ctx != NULL, -1);
+
+ if(transform->status == xmlSecTransformStatusNone) {
+ transform->status = xmlSecTransformStatusWorking;
+ }
+
+ if(transform->status == xmlSecTransformStatusWorking) {
+ if(ctx->ctxInitialized == 0) {
+ ret = xmlSecNssBlockCipherCtxInit(ctx, in, out,
+ (transform->operation == xmlSecTransformOperationEncrypt) ? 1 : 0,
+ xmlSecTransformGetName(transform), transformCtx);
+ if(ret < 0) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
+ "xmlSecNssBlockCipherCtxInit",
+ XMLSEC_ERRORS_R_XMLSEC_FAILED,
+ XMLSEC_ERRORS_NO_MESSAGE);
+ return(-1);
+ }
+ }
+ if((ctx->ctxInitialized == 0) && (last != 0)) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
+ NULL,
+ XMLSEC_ERRORS_R_INVALID_DATA,
+ "not enough data to initialize transform");
+ return(-1);
+ }
+
+ if(ctx->ctxInitialized != 0) {
+ ret = xmlSecNssBlockCipherCtxUpdate(ctx, in, out,
+ (transform->operation == xmlSecTransformOperationEncrypt) ? 1 : 0,
+ xmlSecTransformGetName(transform), transformCtx);
+ if(ret < 0) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
+ "xmlSecNssBlockCipherCtxUpdate",
+ XMLSEC_ERRORS_R_XMLSEC_FAILED,
+ XMLSEC_ERRORS_NO_MESSAGE);
+ return(-1);
+ }
+ }
+
+ if(last) {
+ ret = xmlSecNssBlockCipherCtxFinal(ctx, in, out,
+ (transform->operation == xmlSecTransformOperationEncrypt) ? 1 : 0,
+ xmlSecTransformGetName(transform), transformCtx);
+ if(ret < 0) {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
+ "xmlSecNssBlockCipherCtxFinal",
+ XMLSEC_ERRORS_R_XMLSEC_FAILED,
+ XMLSEC_ERRORS_NO_MESSAGE);
+ 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(in) == 0, -1);
+ } else if(transform->status == xmlSecTransformStatusNone) {
+ /* the only way we can get here is if there is no enough data in the input */
+ xmlSecAssert2(last == 0, -1);
+ } else {
+ xmlSecError(XMLSEC_ERRORS_HERE,
+ xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
+ NULL,
+ XMLSEC_ERRORS_R_INVALID_STATUS,
+ "status=%d", transform->status);
+ return(-1);
+ }
+
+ return(0);
+}
+
+
+#ifndef XMLSEC_NO_AES
+/*********************************************************************
+ *
+ * AES CBC cipher transforms
+ *
+ ********************************************************************/
+static xmlSecTransformKlass xmlSecNssAes128CbcKlass = {
+ /* klass/object sizes */
+ sizeof(xmlSecTransformKlass), /* xmlSecSize klassSize */
+ xmlSecNssBlockCipherSize, /* xmlSecSize objSize */
+
+ xmlSecNameAes128Cbc, /* const xmlChar* name; */
+ xmlSecHrefAes128Cbc, /* const xmlChar* href; */
+ xmlSecTransformUsageEncryptionMethod, /* xmlSecAlgorithmUsage usage; */
+
+ xmlSecNssBlockCipherInitialize, /* xmlSecTransformInitializeMethod initialize; */
+ xmlSecNssBlockCipherFinalize, /* xmlSecTransformFinalizeMethod finalize; */
+ NULL, /* xmlSecTransformNodeReadMethod readNode; */
+ NULL, /* xmlSecTransformNodeWriteMethod writeNode; */
+ xmlSecNssBlockCipherSetKeyReq, /* xmlSecTransformSetKeyMethod setKeyReq; */
+ xmlSecNssBlockCipherSetKey, /* xmlSecTransformSetKeyMethod setKey; */
+ NULL, /* xmlSecTransformValidateMethod validate; */
+ xmlSecTransformDefaultGetDataType, /* xmlSecTransformGetDataTypeMethod getDataType; */
+ xmlSecTransformDefaultPushBin, /* xmlSecTransformPushBinMethod pushBin; */
+ xmlSecTransformDefaultPopBin, /* xmlSecTransformPopBinMethod popBin; */
+ NULL, /* xmlSecTransformPushXmlMethod pushXml; */
+ NULL, /* xmlSecTransformPopXmlMethod popXml; */
+ xmlSecNssBlockCipherExecute, /* xmlSecTransformExecuteMethod execute; */
+
+ NULL, /* void* reserved0; */
+ NULL, /* void* reserved1; */
+};
+
+/**
+ * xmlSecNssTransformAes128CbcGetKlass:
+ *
+ * AES 128 CBC encryption transform klass.
+ *
+ * Returns: pointer to AES 128 CBC encryption transform.
+ */
+xmlSecTransformId
+xmlSecNssTransformAes128CbcGetKlass(void) {
+ return(&xmlSecNssAes128CbcKlass);
+}
+
+static xmlSecTransformKlass xmlSecNssAes192CbcKlass = {
+ /* klass/object sizes */
+ sizeof(xmlSecTransformKlass), /* xmlSecSize klassSize */
+ xmlSecNssBlockCipherSize, /* xmlSecSize objSize */
+
+ xmlSecNameAes192Cbc, /* const xmlChar* name; */
+ xmlSecHrefAes192Cbc, /* const xmlChar* href; */
+ xmlSecTransformUsageEncryptionMethod, /* xmlSecAlgorithmUsage usage; */
+
+ xmlSecNssBlockCipherInitialize, /* xmlSecTransformInitializeMethod initialize; */
+ xmlSecNssBlockCipherFinalize, /* xmlSecTransformFinalizeMethod finalize; */
+ NULL, /* xmlSecTransformNodeReadMethod readNode; */
+ NULL, /* xmlSecTransformNodeWriteMethod writeNode; */
+ xmlSecNssBlockCipherSetKeyReq, /* xmlSecTransformSetKeyMethod setKeyReq; */
+ xmlSecNssBlockCipherSetKey, /* xmlSecTransformSetKeyMethod setKey; */
+ NULL, /* xmlSecTransformValidateMethod validate; */
+ xmlSecTransformDefaultGetDataType, /* xmlSecTransformGetDataTypeMethod getDataType; */
+ xmlSecTransformDefaultPushBin, /* xmlSecTransformPushBinMethod pushBin; */
+ xmlSecTransformDefaultPopBin, /* xmlSecTransformPopBinMethod popBin; */
+ NULL, /* xmlSecTransformPushXmlMethod pushXml; */
+ NULL, /* xmlSecTransformPopXmlMethod popXml; */
+ xmlSecNssBlockCipherExecute, /* xmlSecTransformExecuteMethod execute; */
+
+ NULL, /* void* reserved0; */
+ NULL, /* void* reserved1; */
+};
+
+/**
+ * xmlSecNssTransformAes192CbcGetKlass:
+ *
+ * AES 192 CBC encryption transform klass.
+ *
+ * Returns: pointer to AES 192 CBC encryption transform.
+ */
+xmlSecTransformId
+xmlSecNssTransformAes192CbcGetKlass(void) {
+ return(&xmlSecNssAes192CbcKlass);
+}
+
+static xmlSecTransformKlass xmlSecNssAes256CbcKlass = {
+ /* klass/object sizes */
+ sizeof(xmlSecTransformKlass), /* xmlSecSize klassSize */
+ xmlSecNssBlockCipherSize, /* xmlSecSize objSize */
+
+ xmlSecNameAes256Cbc, /* const xmlChar* name; */
+ xmlSecHrefAes256Cbc, /* const xmlChar* href; */
+ xmlSecTransformUsageEncryptionMethod, /* xmlSecAlgorithmUsage usage; */
+
+ xmlSecNssBlockCipherInitialize, /* xmlSecTransformInitializeMethod initialize; */
+ xmlSecNssBlockCipherFinalize, /* xmlSecTransformFinalizeMethod finalize; */
+ NULL, /* xmlSecTransformNodeReadMethod readNode; */
+ NULL, /* xmlSecTransformNodeWriteMethod writeNode; */
+ xmlSecNssBlockCipherSetKeyReq, /* xmlSecTransformSetKeyMethod setKeyReq; */
+ xmlSecNssBlockCipherSetKey, /* xmlSecTransformSetKeyMethod setKey; */
+ NULL, /* xmlSecTransformValidateMethod validate; */
+ xmlSecTransformDefaultGetDataType, /* xmlSecTransformGetDataTypeMethod getDataType; */
+ xmlSecTransformDefaultPushBin, /* xmlSecTransformPushBinMethod pushBin; */
+ xmlSecTransformDefaultPopBin, /* xmlSecTransformPopBinMethod popBin; */
+ NULL, /* xmlSecTransformPushXmlMethod pushXml; */
+ NULL, /* xmlSecTransformPopXmlMethod popXml; */
+ xmlSecNssBlockCipherExecute, /* xmlSecTransformExecuteMethod execute; */
+
+ NULL, /* void* reserved0; */
+ NULL, /* void* reserved1; */
+};
+
+/**
+ * xmlSecNssTransformAes256CbcGetKlass:
+ *
+ * AES 256 CBC encryption transform klass.
+ *
+ * Returns: pointer to AES 256 CBC encryption transform.
+ */
+xmlSecTransformId
+xmlSecNssTransformAes256CbcGetKlass(void) {
+ return(&xmlSecNssAes256CbcKlass);
+}
+
+#endif /* XMLSEC_NO_AES */
+
+#ifndef XMLSEC_NO_DES
+static xmlSecTransformKlass xmlSecNssDes3CbcKlass = {
+ /* klass/object sizes */
+ sizeof(xmlSecTransformKlass), /* xmlSecSize klassSize */
+ xmlSecNssBlockCipherSize, /* xmlSecSize objSize */
+
+ xmlSecNameDes3Cbc, /* const xmlChar* name; */
+ xmlSecHrefDes3Cbc, /* const xmlChar* href; */
+ xmlSecTransformUsageEncryptionMethod, /* xmlSecAlgorithmUsage usage; */
+
+ xmlSecNssBlockCipherInitialize, /* xmlSecTransformInitializeMethod initialize; */
+ xmlSecNssBlockCipherFinalize, /* xmlSecTransformFinalizeMethod finalize; */
+ NULL, /* xmlSecTransformNodeReadMethod readNode; */
+ NULL, /* xmlSecTransformNodeWriteMethod writeNode; */
+ xmlSecNssBlockCipherSetKeyReq, /* xmlSecTransformSetKeyMethod setKeyReq; */
+ xmlSecNssBlockCipherSetKey, /* xmlSecTransformSetKeyMethod setKey; */
+ NULL, /* xmlSecTransformValidateMethod validate; */
+ xmlSecTransformDefaultGetDataType, /* xmlSecTransformGetDataTypeMethod getDataType; */
+ xmlSecTransformDefaultPushBin, /* xmlSecTransformPushBinMethod pushBin; */
+ xmlSecTransformDefaultPopBin, /* xmlSecTransformPopBinMethod popBin; */
+ NULL, /* xmlSecTransformPushXmlMethod pushXml; */
+ NULL, /* xmlSecTransformPopXmlMethod popXml; */
+ xmlSecNssBlockCipherExecute, /* xmlSecTransformExecuteMethod execute; */
+
+ NULL, /* void* reserved0; */
+ NULL, /* void* reserved1; */
+};
+
+/**
+ * xmlSecNssTransformDes3CbcGetKlass:
+ *
+ * Triple DES CBC encryption transform klass.
+ *
+ * Returns: pointer to Triple DES encryption transform.
+ */
+xmlSecTransformId
+xmlSecNssTransformDes3CbcGetKlass(void) {
+ return(&xmlSecNssDes3CbcKlass);
+}
+#endif /* XMLSEC_NO_DES */
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-10 14:53:37 +0000