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/**
* XMLSec library
*
* This is free software; see Copyright file in the source
* distribution for preciese wording.
*
* Copyrigth (C) 2003 Cordys R&D BV, All rights reserved.
* Copyright (c) 2005-2006 Cryptocom LTD (http://www.cryptocom.ru).
*/
#include "globals.h"
#include <string.h>
#include <windows.h>
#include <wincrypt.h>
#ifndef XMLSEC_NO_GOST
#include "csp_calg.h"
#endif
#include <xmlsec/xmlsec.h>
#include <xmlsec/keys.h>
#include <xmlsec/transforms.h>
#include <xmlsec/errors.h>
#include <xmlsec/mscrypto/crypto.h>
#define MSCRYPTO_MAX_HASH_SIZE 256
typedef struct _xmlSecMSCryptoDigestCtx xmlSecMSCryptoDigestCtx, *xmlSecMSCryptoDigestCtxPtr;
struct _xmlSecMSCryptoDigestCtx {
HCRYPTPROV provider;
ALG_ID alg_id;
HCRYPTHASH mscHash;
unsigned char dgst[MSCRYPTO_MAX_HASH_SIZE];
size_t dgstSize; /* dgst size in bytes */
};
/******************************************************************************
*
* MSCrypto Digest transforms
*
* xmlSecMSCryptoDigestCtx is located after xmlSecTransform
*
*****************************************************************************/
#define xmlSecMSCryptoDigestSize \
(sizeof(xmlSecTransform) + sizeof(xmlSecMSCryptoDigestCtx))
#define xmlSecMSCryptoDigestGetCtx(transform) \
((xmlSecMSCryptoDigestCtxPtr)(((xmlSecByte*)(transform)) + sizeof(xmlSecTransform)))
static int xmlSecMSCryptoDigestInitialize (xmlSecTransformPtr transform);
static void xmlSecMSCryptoDigestFinalize (xmlSecTransformPtr transform);
static int xmlSecMSCryptoDigestVerify (xmlSecTransformPtr transform,
const xmlSecByte* data,
xmlSecSize dataSize,
xmlSecTransformCtxPtr transformCtx);
static int xmlSecMSCryptoDigestExecute (xmlSecTransformPtr transform,
int last,
xmlSecTransformCtxPtr transformCtx);
static int xmlSecMSCryptoDigestCheckId (xmlSecTransformPtr transform);
static int
xmlSecMSCryptoDigestCheckId(xmlSecTransformPtr transform) {
#ifndef XMLSEC_NO_SHA1
if(xmlSecTransformCheckId(transform, xmlSecMSCryptoTransformSha1Id)) {
return(1);
}
#endif /* XMLSEC_NO_SHA1 */
#ifndef XMLSEC_NO_GOST
if(xmlSecTransformCheckId(transform, xmlSecMSCryptoTransformGostR3411_94Id)) {
return(1);
}
#endif /* XMLSEC_NO_GOST*/
return(0);
}
static int
xmlSecMSCryptoDigestInitialize(xmlSecTransformPtr transform) {
xmlSecMSCryptoDigestCtxPtr ctx;
xmlSecAssert2(xmlSecMSCryptoDigestCheckId(transform), -1);
xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecMSCryptoDigestSize), -1);
ctx = xmlSecMSCryptoDigestGetCtx(transform);
xmlSecAssert2(ctx != NULL, -1);
/* initialize context */
memset(ctx, 0, sizeof(xmlSecMSCryptoDigestCtx));
#ifndef XMLSEC_NO_SHA1
if(xmlSecTransformCheckId(transform, xmlSecMSCryptoTransformSha1Id)) {
ctx->alg_id = CALG_SHA;
} else
#endif /* XMLSEC_NO_SHA1 */
#ifndef XMLSEC_NO_GOST
if(xmlSecTransformCheckId(transform, xmlSecMSCryptoTransformGostR3411_94Id)) {
ctx->alg_id = CALG_MAGPRO_HASH_R3411_94;
/* TODO: Check what provider is best suited here.... */
if (!CryptAcquireContext(&ctx->provider, NULL, 0, PROV_MAGPRO_GOST, CRYPT_VERIFYCONTEXT)) {
if (!CryptAcquireContext(&ctx->provider, NULL, 0, PROV_CRYPTOPRO_GOST, CRYPT_VERIFYCONTEXT)) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
NULL,
XMLSEC_ERRORS_R_CRYPTO_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
}
return(0);
} else
#endif /* XMLSEC_NO_GOST*/
{
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
NULL,
XMLSEC_ERRORS_R_INVALID_TRANSFORM,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
/* TODO: Check what provider is best suited here.... */
if (!CryptAcquireContext(&ctx->provider, NULL, MS_STRONG_PROV, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
if (!CryptAcquireContext(&ctx->provider, NULL, MS_ENHANCED_PROV,PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
NULL,
XMLSEC_ERRORS_R_CRYPTO_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
}
return(0);
}
static void xmlSecMSCryptoDigestFinalize(xmlSecTransformPtr transform) {
xmlSecMSCryptoDigestCtxPtr ctx;
xmlSecAssert(xmlSecMSCryptoDigestCheckId(transform));
xmlSecAssert(xmlSecTransformCheckSize(transform, xmlSecMSCryptoDigestSize));
ctx = xmlSecMSCryptoDigestGetCtx(transform);
xmlSecAssert(ctx != NULL);
if(ctx->mscHash != 0) {
CryptDestroyHash(ctx->mscHash);
}
CryptReleaseContext(ctx->provider, 0);
memset(ctx, 0, sizeof(xmlSecMSCryptoDigestCtx));
}
static int
xmlSecMSCryptoDigestVerify(xmlSecTransformPtr transform,
const xmlSecByte* data,
xmlSecSize dataSize,
xmlSecTransformCtxPtr transformCtx) {
xmlSecMSCryptoDigestCtxPtr ctx;
xmlSecAssert2(xmlSecMSCryptoDigestCheckId(transform), -1);
xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecMSCryptoDigestSize), -1);
xmlSecAssert2(transform->operation == xmlSecTransformOperationVerify, -1);
xmlSecAssert2(transform->status == xmlSecTransformStatusFinished, -1);
xmlSecAssert2(data != NULL, -1);
xmlSecAssert2(transformCtx != NULL, -1);
ctx = xmlSecMSCryptoDigestGetCtx(transform);
xmlSecAssert2(ctx != NULL, -1);
xmlSecAssert2(ctx->dgstSize > 0, -1);
if(dataSize != ctx->dgstSize) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
NULL,
XMLSEC_ERRORS_R_INVALID_SIZE,
"data_size=%d;dgst_size=%d",
dataSize, ctx->dgstSize);
transform->status = xmlSecTransformStatusFail;
return(0);
}
if(memcmp(ctx->dgst, data, ctx->dgstSize) != 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
NULL,
XMLSEC_ERRORS_R_INVALID_DATA,
"data and digest do not match");
transform->status = xmlSecTransformStatusFail;
return(0);
}
transform->status = xmlSecTransformStatusOk;
return(0);
}
static int
xmlSecMSCryptoDigestExecute(xmlSecTransformPtr transform,
int last,
xmlSecTransformCtxPtr transformCtx) {
xmlSecMSCryptoDigestCtxPtr ctx;
xmlSecBufferPtr in, out;
int ret;
xmlSecAssert2(xmlSecMSCryptoDigestCheckId(transform), -1);
xmlSecAssert2((transform->operation == xmlSecTransformOperationSign) || (transform->operation == xmlSecTransformOperationVerify), -1);
xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecMSCryptoDigestSize), -1);
xmlSecAssert2(transformCtx != NULL, -1);
in = &(transform->inBuf);
xmlSecAssert2(in != NULL, -1);
out = &(transform->outBuf);
xmlSecAssert2(out != NULL, -1);
ctx = xmlSecMSCryptoDigestGetCtx(transform);
xmlSecAssert2(ctx != NULL, -1);
if(transform->status == xmlSecTransformStatusNone) {
ret = CryptCreateHash(ctx->provider,
ctx->alg_id,
0,
0,
&(ctx->mscHash));
if((ret == 0) || (ctx->mscHash == 0)) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"CryptHashData",
XMLSEC_ERRORS_R_CRYPTO_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
transform->status = xmlSecTransformStatusWorking;
}
if (transform->status == xmlSecTransformStatusWorking) {
xmlSecSize inSize;
inSize = xmlSecBufferGetSize(in);
if(inSize > 0) {
ret = CryptHashData(ctx->mscHash,
xmlSecBufferGetData(in),
inSize,
0);
if(ret == 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"CryptHashData",
XMLSEC_ERRORS_R_CRYPTO_FAILED,
"size=%d", inSize);
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);
}
}
if(last) {
/* TODO: make a MSCrypto compatible assert here */
/* xmlSecAssert2((xmlSecSize)EVP_MD_size(ctx->digest) <= sizeof(ctx->dgst), -1); */
DWORD retLen;
retLen = MSCRYPTO_MAX_HASH_SIZE;
ret = CryptGetHashParam(ctx->mscHash,
HP_HASHVAL,
ctx->dgst,
&retLen,
0);
if (ret == 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"CryptGetHashParam",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
"size=%d", inSize);
return(-1);
}
ctx->dgstSize = (size_t)retLen;
xmlSecAssert2(ctx->dgstSize > 0, -1);
/* copy result to output */
if(transform->operation == xmlSecTransformOperationSign) {
ret = xmlSecBufferAppend(out, ctx->dgst, ctx->dgstSize);
if(ret < 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"xmlSecBufferAppend",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
"size=%d", ctx->dgstSize);
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 {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
NULL,
XMLSEC_ERRORS_R_INVALID_STATUS,
"status=%d", transform->status);
return(-1);
}
return(0);
}
#ifndef XMLSEC_NO_SHA1
/******************************************************************************
*
* SHA1
*
*****************************************************************************/
static xmlSecTransformKlass xmlSecMSCryptoSha1Klass = {
/* klass/object sizes */
sizeof(xmlSecTransformKlass), /* size_t klassSize */
xmlSecMSCryptoDigestSize, /* size_t objSize */
xmlSecNameSha1, /* const xmlChar* name; */
xmlSecHrefSha1, /* const xmlChar* href; */
xmlSecTransformUsageDigestMethod, /* xmlSecTransformUsage usage; */
xmlSecMSCryptoDigestInitialize, /* xmlSecTransformInitializeMethod initialize; */
xmlSecMSCryptoDigestFinalize, /* xmlSecTransformFinalizeMethod finalize; */
NULL, /* xmlSecTransformNodeReadMethod readNode; */
NULL, /* xmlSecTransformNodeWriteMethod writeNode; */
NULL, /* xmlSecTransformSetKeyReqMethod setKeyReq; */
NULL, /* xmlSecTransformSetKeyMethod setKey; */
xmlSecMSCryptoDigestVerify, /* xmlSecTransformVerifyMethod verify; */
xmlSecTransformDefaultGetDataType, /* xmlSecTransformGetDataTypeMethod getDataType; */
xmlSecTransformDefaultPushBin, /* xmlSecTransformPushBinMethod pushBin; */
xmlSecTransformDefaultPopBin, /* xmlSecTransformPopBinMethod popBin; */
NULL, /* xmlSecTransformPushXmlMethod pushXml; */
NULL, /* xmlSecTransformPopXmlMethod popXml; */
xmlSecMSCryptoDigestExecute, /* xmlSecTransformExecuteMethod execute; */
NULL, /* void* reserved0; */
NULL, /* void* reserved1; */
};
/**
* xmlSecMSCryptoTransformSha1GetKlass:
*
* SHA-1 digest transform klass.
*
* Returns: pointer to SHA-1 digest transform klass.
*/
xmlSecTransformId
xmlSecMSCryptoTransformSha1GetKlass(void) {
return(&xmlSecMSCryptoSha1Klass);
}
#endif /* XMLSEC_NO_SHA1 */
#ifndef XMLSEC_NO_GOST
/******************************************************************************
*
* GOSTR3411_94
*
*****************************************************************************/
static xmlSecTransformKlass xmlSecMSCryptoGostR3411_94Klass = {
/* klass/object sizes */
sizeof(xmlSecTransformKlass), /* size_t klassSize */
xmlSecMSCryptoDigestSize, /* size_t objSize */
xmlSecNameGostR3411_94, /* const xmlChar* name; */
xmlSecHrefGostR3411_94, /* const xmlChar* href; */
xmlSecTransformUsageDigestMethod, /* xmlSecTransformUsage usage; */
xmlSecMSCryptoDigestInitialize, /* xmlSecTransformInitializeMethod initialize; */
xmlSecMSCryptoDigestFinalize, /* xmlSecTransformFinalizeMethod finalize; */
NULL, /* xmlSecTransformNodeReadMethod readNode; */
NULL, /* xmlSecTransformNodeWriteMethod writeNode; */
NULL, /* xmlSecTransformSetKeyReqMethod setKeyReq; */
NULL, /* xmlSecTransformSetKeyMethod setKey; */
xmlSecMSCryptoDigestVerify, /* xmlSecTransformVerifyMethod verify; */
xmlSecTransformDefaultGetDataType, /* xmlSecTransformGetDataTypeMethod getDataType; */
xmlSecTransformDefaultPushBin, /* xmlSecTransformPushBinMethod pushBin; */
xmlSecTransformDefaultPopBin, /* xmlSecTransformPopBinMethod popBin; */
NULL, /* xmlSecTransformPushXmlMethod pushXml; */
NULL, /* xmlSecTransformPopXmlMethod popXml; */
xmlSecMSCryptoDigestExecute, /* xmlSecTransformExecuteMethod execute; */
NULL, /* void* reserved0; */
NULL, /* void* reserved1; */
};
/**
* xmlSecMSCryptoTransformGostR3411_94GetKlass:
*
* GOSTR3411_94 digest transform klass.
*
* Returns: pointer to GOSTR3411_94 digest transform klass.
*/
xmlSecTransformId
xmlSecMSCryptoTransformGostR3411_94GetKlass(void) {
return(&xmlSecMSCryptoGostR3411_94Klass);
}
#endif /* XMLSEC_NO_GOST*/
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