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/**
* 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/app.h>
#include <xmlsec/nss/crypto.h>
#define XMLSEC_NSS_MAX_DIGEST_SIZE 64
/**************************************************************************
*
* Internal NSS Digest CTX
*
*****************************************************************************/
typedef struct _xmlSecNssDigestCtx xmlSecNssDigestCtx, *xmlSecNssDigestCtxPtr;
struct _xmlSecNssDigestCtx {
SECOidData* digest;
PK11Context* digestCtx;
xmlSecByte dgst[XMLSEC_NSS_MAX_DIGEST_SIZE];
xmlSecSize dgstSize; /* dgst size in bytes */
};
/******************************************************************************
*
* Digest transforms
*
* xmlSecNssDigestCtx is located after xmlSecTransform
*
*****************************************************************************/
#define xmlSecNssDigestSize \
(sizeof(xmlSecTransform) + sizeof(xmlSecNssDigestCtx))
#define xmlSecNssDigestGetCtx(transform) \
((xmlSecNssDigestCtxPtr)(((xmlSecByte*)(transform)) + sizeof(xmlSecTransform)))
static int xmlSecNssDigestCheckId (xmlSecTransformPtr transform);
static int xmlSecNssDigestInitialize (xmlSecTransformPtr transform);
static void xmlSecNssDigestFinalize (xmlSecTransformPtr transform);
static int xmlSecNssDigestVerify (xmlSecTransformPtr transform,
const xmlSecByte* data,
xmlSecSize dataSize,
xmlSecTransformCtxPtr transformCtx);
static int xmlSecNssDigestExecute (xmlSecTransformPtr transform,
int last,
xmlSecTransformCtxPtr transformCtx);
static int
xmlSecNssDigestCheckId(xmlSecTransformPtr transform) {
#ifndef XMLSEC_NO_MD5
if(xmlSecTransformCheckId(transform, xmlSecNssTransformMd5Id)) {
return(1);
}
#endif /* XMLSEC_NO_MD5 */
#ifndef XMLSEC_NO_SHA1
if(xmlSecTransformCheckId(transform, xmlSecNssTransformSha1Id)) {
return(1);
}
#endif /* XMLSEC_NO_SHA1 */
#ifndef XMLSEC_NO_SHA256
if(xmlSecTransformCheckId(transform, xmlSecNssTransformSha256Id)) {
return(1);
}
#endif /* XMLSEC_NO_SHA256 */
#ifndef XMLSEC_NO_SHA384
if(xmlSecTransformCheckId(transform, xmlSecNssTransformSha384Id)) {
return(1);
}
#endif /* XMLSEC_NO_SHA384 */
#ifndef XMLSEC_NO_SHA512
if(xmlSecTransformCheckId(transform, xmlSecNssTransformSha512Id)) {
return(1);
}
#endif /* XMLSEC_NO_SHA512 */
return(0);
}
static int
xmlSecNssDigestInitialize(xmlSecTransformPtr transform) {
xmlSecNssDigestCtxPtr ctx;
xmlSecAssert2(xmlSecNssDigestCheckId(transform), -1);
xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecNssDigestSize), -1);
ctx = xmlSecNssDigestGetCtx(transform);
xmlSecAssert2(ctx != NULL, -1);
/* initialize context */
memset(ctx, 0, sizeof(xmlSecNssDigestCtx));
#ifndef XMLSEC_NO_MD5
if(xmlSecTransformCheckId(transform, xmlSecNssTransformMd5Id)) {
ctx->digest = SECOID_FindOIDByTag(SEC_OID_MD5);
} else
#endif /* XMLSEC_NO_MD5 */
#ifndef XMLSEC_NO_SHA1
if(xmlSecTransformCheckId(transform, xmlSecNssTransformSha1Id)) {
ctx->digest = SECOID_FindOIDByTag(SEC_OID_SHA1);
} else
#endif /* XMLSEC_NO_SHA1 */
#ifndef XMLSEC_NO_SHA256
if(xmlSecTransformCheckId(transform, xmlSecNssTransformSha256Id)) {
ctx->digest = SECOID_FindOIDByTag(SEC_OID_SHA256);
} else
#endif /* XMLSEC_NO_SHA256 */
#ifndef XMLSEC_NO_SHA384
if(xmlSecTransformCheckId(transform, xmlSecNssTransformSha384Id)) {
ctx->digest = SECOID_FindOIDByTag(SEC_OID_SHA384);
} else
#endif /* XMLSEC_NO_SHA384 */
#ifndef XMLSEC_NO_SHA512
if(xmlSecTransformCheckId(transform, xmlSecNssTransformSha512Id)) {
ctx->digest = SECOID_FindOIDByTag(SEC_OID_SHA512);
} else
#endif /* XMLSEC_NO_SHA512 */
if(1) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
NULL,
XMLSEC_ERRORS_R_INVALID_TRANSFORM,
XMLSEC_ERRORS_NO_MESSAGE);
return(-1);
}
if(ctx->digest == NULL) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"SECOID_FindOIDByTag",
XMLSEC_ERRORS_R_CRYPTO_FAILED,
"error code=%d", PORT_GetError());
return(-1);
}
ctx->digestCtx = PK11_CreateDigestContext(ctx->digest->offset);
if(ctx->digestCtx == NULL) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"PK11_CreateDigestContext",
XMLSEC_ERRORS_R_CRYPTO_FAILED,
"error code=%d", PORT_GetError());
return(-1);
}
return(0);
}
static void
xmlSecNssDigestFinalize(xmlSecTransformPtr transform) {
xmlSecNssDigestCtxPtr ctx;
xmlSecAssert(xmlSecNssDigestCheckId(transform));
xmlSecAssert(xmlSecTransformCheckSize(transform, xmlSecNssDigestSize));
ctx = xmlSecNssDigestGetCtx(transform);
xmlSecAssert(ctx != NULL);
if(ctx->digestCtx != NULL) {
PK11_DestroyContext(ctx->digestCtx, PR_TRUE);
}
memset(ctx, 0, sizeof(xmlSecNssDigestCtx));
}
static int
xmlSecNssDigestVerify(xmlSecTransformPtr transform,
const xmlSecByte* data, xmlSecSize dataSize,
xmlSecTransformCtxPtr transformCtx) {
xmlSecNssDigestCtxPtr ctx;
xmlSecAssert2(xmlSecNssDigestCheckId(transform), -1);
xmlSecAssert2(transform->operation == xmlSecTransformOperationVerify, -1);
xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecNssDigestSize), -1);
xmlSecAssert2(transform->status == xmlSecTransformStatusFinished, -1);
xmlSecAssert2(data != NULL, -1);
xmlSecAssert2(transformCtx != NULL, -1);
ctx = xmlSecNssDigestGetCtx(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_DATA,
"data and digest sizes are different (data=%d, dgst=%d)",
dataSize, ctx->dgstSize);
transform->status = xmlSecTransformStatusFail;
return(0);
}
if(memcmp(ctx->dgst, data, dataSize) != 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
xmlSecNssDigestExecute(xmlSecTransformPtr transform, int last, xmlSecTransformCtxPtr transformCtx) {
xmlSecNssDigestCtxPtr ctx;
xmlSecBufferPtr in, out;
SECStatus rv;
int ret;
xmlSecAssert2(xmlSecNssDigestCheckId(transform), -1);
xmlSecAssert2((transform->operation == xmlSecTransformOperationSign) || (transform->operation == xmlSecTransformOperationVerify), -1);
xmlSecAssert2(transformCtx != NULL, -1);
xmlSecAssert2(xmlSecTransformCheckSize(transform, xmlSecNssDigestSize), -1);
ctx = xmlSecNssDigestGetCtx(transform);
xmlSecAssert2(ctx != NULL, -1);
xmlSecAssert2(ctx->digestCtx != NULL, -1);
in = &(transform->inBuf);
out = &(transform->outBuf);
if(transform->status == xmlSecTransformStatusNone) {
rv = PK11_DigestBegin(ctx->digestCtx);
if(rv != SECSuccess) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"PK11_DigestBegin",
XMLSEC_ERRORS_R_CRYPTO_FAILED,
"error code=%d", PORT_GetError());
return(-1);
}
transform->status = xmlSecTransformStatusWorking;
}
if(transform->status == xmlSecTransformStatusWorking) {
xmlSecSize inSize;
inSize = xmlSecBufferGetSize(in);
if(inSize > 0) {
rv = PK11_DigestOp(ctx->digestCtx, xmlSecBufferGetData(in), inSize);
if (rv != SECSuccess) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"PK11_DigestOp",
XMLSEC_ERRORS_R_CRYPTO_FAILED,
"error code=%d", PORT_GetError());
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) {
unsigned int dgstSize;
rv = PK11_DigestFinal(ctx->digestCtx, ctx->dgst, &dgstSize, sizeof(ctx->dgst));
if(rv != SECSuccess) {
xmlSecError(XMLSEC_ERRORS_HERE,
xmlSecErrorsSafeString(xmlSecTransformGetName(transform)),
"PK11_DigestFinal",
XMLSEC_ERRORS_R_CRYPTO_FAILED,
"error code=%d", PORT_GetError());
return(-1);
}
xmlSecAssert2(dgstSize > 0, -1);
ctx->dgstSize = XMLSEC_SIZE_BAD_CAST(dgstSize);
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(&(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);
}
#ifndef XMLSEC_NO_MD5
/******************************************************************************
*
* Md5 Digest transforms
*
*****************************************************************************/
static xmlSecTransformKlass xmlSecNssMd5Klass = {
/* klass/object sizes */
sizeof(xmlSecTransformKlass), /* xmlSecSize klassSize */
xmlSecNssDigestSize, /* xmlSecSize objSize */
/* data */
xmlSecNameMd5, /* const xmlChar* name; */
xmlSecHrefMd5, /* const xmlChar* href; */
xmlSecTransformUsageDigestMethod, /* xmlSecTransformUsage usage; */
/* methods */
xmlSecNssDigestInitialize, /* xmlSecTransformInitializeMethod initialize; */
xmlSecNssDigestFinalize, /* xmlSecTransformFinalizeMethod finalize; */
NULL, /* xmlSecTransformNodeReadMethod readNode; */
NULL, /* xmlSecTransformNodeWriteMethod writeNode; */
NULL, /* xmlSecTransformSetKeyReqMethod setKeyReq; */
NULL, /* xmlSecTransformSetKeyMethod setKey; */
xmlSecNssDigestVerify, /* xmlSecTransformVerifyMethod verify; */
xmlSecTransformDefaultGetDataType, /* xmlSecTransformGetDataTypeMethod getDataType; */
xmlSecTransformDefaultPushBin, /* xmlSecTransformPushBinMethod pushBin; */
xmlSecTransformDefaultPopBin, /* xmlSecTransformPopBinMethod popBin; */
NULL, /* xmlSecTransformPushXmlMethod pushXml; */
NULL, /* xmlSecTransformPopXmlMethod popXml; */
xmlSecNssDigestExecute, /* xmlSecTransformExecuteMethod execute; */
NULL, /* void* reserved0; */
NULL, /* void* reserved1; */
};
/**
* xmlSecNssTransformMd5GetKlass:
*
* MD5 digest transform klass.
*
* Returns: pointer to MD5 digest transform klass.
*/
xmlSecTransformId
xmlSecNssTransformMd5GetKlass(void) {
return(&xmlSecNssMd5Klass);
}
#endif /* XMLSEC_NO_MD5 */
#ifndef XMLSEC_NO_SHA1
/******************************************************************************
*
* SHA1 Digest transforms
*
*****************************************************************************/
static xmlSecTransformKlass xmlSecNssSha1Klass = {
/* klass/object sizes */
sizeof(xmlSecTransformKlass), /* xmlSecSize klassSize */
xmlSecNssDigestSize, /* xmlSecSize objSize */
/* data */
xmlSecNameSha1, /* const xmlChar* name; */
xmlSecHrefSha1, /* const xmlChar* href; */
xmlSecTransformUsageDigestMethod, /* xmlSecTransformUsage usage; */
/* methods */
xmlSecNssDigestInitialize, /* xmlSecTransformInitializeMethod initialize; */
xmlSecNssDigestFinalize, /* xmlSecTransformFinalizeMethod finalize; */
NULL, /* xmlSecTransformNodeReadMethod readNode; */
NULL, /* xmlSecTransformNodeWriteMethod writeNode; */
NULL, /* xmlSecTransformSetKeyReqMethod setKeyReq; */
NULL, /* xmlSecTransformSetKeyMethod setKey; */
xmlSecNssDigestVerify, /* xmlSecTransformVerifyMethod verify; */
xmlSecTransformDefaultGetDataType, /* xmlSecTransformGetDataTypeMethod getDataType; */
xmlSecTransformDefaultPushBin, /* xmlSecTransformPushBinMethod pushBin; */
xmlSecTransformDefaultPopBin, /* xmlSecTransformPopBinMethod popBin; */
NULL, /* xmlSecTransformPushXmlMethod pushXml; */
NULL, /* xmlSecTransformPopXmlMethod popXml; */
xmlSecNssDigestExecute, /* xmlSecTransformExecuteMethod execute; */
NULL, /* void* reserved0; */
NULL, /* void* reserved1; */
};
/**
* xmlSecNssTransformSha1GetKlass:
*
* SHA-1 digest transform klass.
*
* Returns: pointer to SHA-1 digest transform klass.
*/
xmlSecTransformId
xmlSecNssTransformSha1GetKlass(void) {
return(&xmlSecNssSha1Klass);
}
#endif /* XMLSEC_NO_SHA1 */
#ifndef XMLSEC_NO_SHA256
/******************************************************************************
*
* SHA256 Digest transforms
*
*****************************************************************************/
static xmlSecTransformKlass xmlSecNssSha256Klass = {
/* klass/object sizes */
sizeof(xmlSecTransformKlass), /* xmlSecSize klassSize */
xmlSecNssDigestSize, /* xmlSecSize objSize */
/* data */
xmlSecNameSha256, /* const xmlChar* name; */
xmlSecHrefSha256, /* const xmlChar* href; */
xmlSecTransformUsageDigestMethod, /* xmlSecTransformUsage usage; */
/* methods */
xmlSecNssDigestInitialize, /* xmlSecTransformInitializeMethod initialize; */
xmlSecNssDigestFinalize, /* xmlSecTransformFinalizeMethod finalize; */
NULL, /* xmlSecTransformNodeReadMethod readNode; */
NULL, /* xmlSecTransformNodeWriteMethod writeNode; */
NULL, /* xmlSecTransformSetKeyReqMethod setKeyReq; */
NULL, /* xmlSecTransformSetKeyMethod setKey; */
xmlSecNssDigestVerify, /* xmlSecTransformVerifyMethod verify; */
xmlSecTransformDefaultGetDataType, /* xmlSecTransformGetDataTypeMethod getDataType; */
xmlSecTransformDefaultPushBin, /* xmlSecTransformPushBinMethod pushBin; */
xmlSecTransformDefaultPopBin, /* xmlSecTransformPopBinMethod popBin; */
NULL, /* xmlSecTransformPushXmlMethod pushXml; */
NULL, /* xmlSecTransformPopXmlMethod popXml; */
xmlSecNssDigestExecute, /* xmlSecTransformExecuteMethod execute; */
NULL, /* void* reserved0; */
NULL, /* void* reserved1; */
};
/**
* xmlSecNssTransformSha256GetKlass:
*
* SHA256 digest transform klass.
*
* Returns: pointer to SHA256 digest transform klass.
*/
xmlSecTransformId
xmlSecNssTransformSha256GetKlass(void) {
return(&xmlSecNssSha256Klass);
}
#endif /* XMLSEC_NO_SHA256 */
#ifndef XMLSEC_NO_SHA384
/******************************************************************************
*
* SHA384 Digest transforms
*
*****************************************************************************/
static xmlSecTransformKlass xmlSecNssSha384Klass = {
/* klass/object sizes */
sizeof(xmlSecTransformKlass), /* xmlSecSize klassSize */
xmlSecNssDigestSize, /* xmlSecSize objSize */
/* data */
xmlSecNameSha384, /* const xmlChar* name; */
xmlSecHrefSha384, /* const xmlChar* href; */
xmlSecTransformUsageDigestMethod, /* xmlSecTransformUsage usage; */
/* methods */
xmlSecNssDigestInitialize, /* xmlSecTransformInitializeMethod initialize; */
xmlSecNssDigestFinalize, /* xmlSecTransformFinalizeMethod finalize; */
NULL, /* xmlSecTransformNodeReadMethod readNode; */
NULL, /* xmlSecTransformNodeWriteMethod writeNode; */
NULL, /* xmlSecTransformSetKeyReqMethod setKeyReq; */
NULL, /* xmlSecTransformSetKeyMethod setKey; */
xmlSecNssDigestVerify, /* xmlSecTransformVerifyMethod verify; */
xmlSecTransformDefaultGetDataType, /* xmlSecTransformGetDataTypeMethod getDataType; */
xmlSecTransformDefaultPushBin, /* xmlSecTransformPushBinMethod pushBin; */
xmlSecTransformDefaultPopBin, /* xmlSecTransformPopBinMethod popBin; */
NULL, /* xmlSecTransformPushXmlMethod pushXml; */
NULL, /* xmlSecTransformPopXmlMethod popXml; */
xmlSecNssDigestExecute, /* xmlSecTransformExecuteMethod execute; */
NULL, /* void* reserved0; */
NULL, /* void* reserved1; */
};
/**
* xmlSecNssTransformSha384GetKlass:
*
* SHA384 digest transform klass.
*
* Returns: pointer to SHA384 digest transform klass.
*/
xmlSecTransformId
xmlSecNssTransformSha384GetKlass(void) {
return(&xmlSecNssSha384Klass);
}
#endif /* XMLSEC_NO_SHA384 */
#ifndef XMLSEC_NO_SHA512
/******************************************************************************
*
* SHA512 Digest transforms
*
*****************************************************************************/
static xmlSecTransformKlass xmlSecNssSha512Klass = {
/* klass/object sizes */
sizeof(xmlSecTransformKlass), /* xmlSecSize klassSize */
xmlSecNssDigestSize, /* xmlSecSize objSize */
/* data */
xmlSecNameSha512, /* const xmlChar* name; */
xmlSecHrefSha512, /* const xmlChar* href; */
xmlSecTransformUsageDigestMethod, /* xmlSecTransformUsage usage; */
/* methods */
xmlSecNssDigestInitialize, /* xmlSecTransformInitializeMethod initialize; */
xmlSecNssDigestFinalize, /* xmlSecTransformFinalizeMethod finalize; */
NULL, /* xmlSecTransformNodeReadMethod readNode; */
NULL, /* xmlSecTransformNodeWriteMethod writeNode; */
NULL, /* xmlSecTransformSetKeyReqMethod setKeyReq; */
NULL, /* xmlSecTransformSetKeyMethod setKey; */
xmlSecNssDigestVerify, /* xmlSecTransformVerifyMethod verify; */
xmlSecTransformDefaultGetDataType, /* xmlSecTransformGetDataTypeMethod getDataType; */
xmlSecTransformDefaultPushBin, /* xmlSecTransformPushBinMethod pushBin; */
xmlSecTransformDefaultPopBin, /* xmlSecTransformPopBinMethod popBin; */
NULL, /* xmlSecTransformPushXmlMethod pushXml; */
NULL, /* xmlSecTransformPopXmlMethod popXml; */
xmlSecNssDigestExecute, /* xmlSecTransformExecuteMethod execute; */
NULL, /* void* reserved0; */
NULL, /* void* reserved1; */
};
/**
* xmlSecNssTransformSha512GetKlass:
*
* SHA512 digest transform klass.
*
* Returns: pointer to SHA512 digest transform klass.
*/
xmlSecTransformId
xmlSecNssTransformSha512GetKlass(void) {
return(&xmlSecNssSha512Klass);
}
#endif /* XMLSEC_NO_SHA512 */
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