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/**
* XMLSec library
*
* This is free software; see Copyright file in the source
* distribution for preciese wording.
*
* Copyright (C) 2010 Aleksey Sanin <aleksey@aleksey.com>
*/
#include "globals.h"
#include <string.h>
#include <gnutls/gnutls.h>
#include <gnutls/x509.h>
#include <xmlsec/xmlsec.h>
#include <xmlsec/xmltree.h>
#include <xmlsec/keys.h>
#include <xmlsec/base64.h>
#include <xmlsec/keyinfo.h>
#include <xmlsec/transforms.h>
#include <xmlsec/errors.h>
#include <xmlsec/gnutls/crypto.h>
/**************************************************************************
*
* We use xmlsec-gcrypt for all the basic crypto ops
*
*****************************************************************************/
#include <xmlsec/gcrypt/crypto.h>
#include <gcrypt.h>
static void xmlSecGnuTLSDestroyParams(gnutls_datum_t * params, xmlSecSize num) {
xmlSecSize ii;
xmlSecAssert(params != NULL);
for(ii = 0; ii < num; ++ii) {
gnutls_free(params[ii].data);
}
}
static void xmlSecGnuTLSDestroyMpis(gcry_mpi_t * mpis, xmlSecSize num) {
xmlSecSize ii;
xmlSecAssert(mpis != NULL);
for(ii = 0; ii < num; ++ii) {
gcry_mpi_release(mpis[ii]);
}
}
static int xmlSecGnuTLSConvertParamsToMpis(gnutls_datum_t * params, xmlSecSize paramsNum,
gcry_mpi_t * mpis, xmlSecSize mpisNum) {
xmlSecSize ii;
int rc;
xmlSecAssert2(params != NULL, -1);
xmlSecAssert2(mpis != NULL, -1);
xmlSecAssert2(paramsNum == mpisNum, -1);
for(ii = 0; ii < paramsNum; ++ii) {
rc = gcry_mpi_scan(&(mpis[ii]), GCRYMPI_FMT_USG, params[ii].data, params[ii].size, NULL);
if((rc != GPG_ERR_NO_ERROR) || (mpis[ii] == NULL)) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"gcry_mpi_scan",
XMLSEC_ERRORS_R_CRYPTO_FAILED,
XMLSEC_GNUTLS_GCRYPT_REPORT_ERROR(rc));
xmlSecGnuTLSDestroyMpis(mpis, ii); /* destroy up to now */
return(-1);
}
}
/* done */
return(0);
}
#ifndef XMLSEC_NO_DSA
/**
* xmlSecGnuTLSKeyDataDsaGetKlass:
*
* The DSA key data klass.
*
* Returns: pointer to DSA key data klass.
*/
xmlSecKeyDataId
xmlSecGnuTLSKeyDataDsaGetKlass(void) {
return (xmlSecGCryptKeyDataDsaGetKlass());
}
/**
* xmlSecGnuTLSKeyDataDsaAdoptPrivateKey:
* @data: the pointer to DSA key data.
* @dsa_key: the pointer to GnuTLS DSA private key.
*
* Sets the value of DSA key data.
*
* Returns: 0 on success or a negative value otherwise.
*/
int
xmlSecGnuTLSKeyDataDsaAdoptPrivateKey(xmlSecKeyDataPtr data, gnutls_x509_privkey_t dsa_key) {
gnutls_datum_t params[5];
gcry_mpi_t mpis[5];
gcry_sexp_t priv_key = NULL;
gcry_sexp_t pub_key = NULL;
int rc;
int err;
int ret;
xmlSecAssert2(xmlSecKeyDataCheckId(data, xmlSecGnuTLSKeyDataDsaId), -1);
xmlSecAssert2(dsa_key != NULL, -1);
xmlSecAssert2(gnutls_x509_privkey_get_pk_algorithm(dsa_key) == GNUTLS_PK_DSA, -1);
/* get raw values */
err = gnutls_x509_privkey_export_dsa_raw(dsa_key,
&(params[0]), &(params[1]), &(params[2]),
&(params[3]), &(params[4]));
if(err != GNUTLS_E_SUCCESS) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"gnutls_x509_privkey_export_dsa_raw",
XMLSEC_ERRORS_R_CRYPTO_FAILED,
XMLSEC_GNUTLS_REPORT_ERROR(err));
return(-1);
}
/* convert to mpis */
ret = xmlSecGnuTLSConvertParamsToMpis(
params, sizeof(params)/sizeof(params[0]),
mpis, sizeof(mpis)/sizeof(mpis[0]));
if(ret < 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"xmlSecGnuTLSConvertParamsToMpis",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
xmlSecGnuTLSDestroyParams(params, sizeof(params)/sizeof(params[0]));
return(-1);
}
xmlSecGnuTLSDestroyParams(params, sizeof(params)/sizeof(params[0]));
/* build expressions */
rc = gcry_sexp_build(&(priv_key), NULL, "(private-key(dsa(p%m)(q%m)(g%m)(y%m)(x%m)))",
mpis[0], mpis[1], mpis[2], mpis[3], mpis[4]);
if((rc != GPG_ERR_NO_ERROR) || (priv_key == NULL)) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"gcry_sexp_build(private/dsa)",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_GNUTLS_GCRYPT_REPORT_ERROR(rc));
xmlSecGnuTLSDestroyMpis(mpis, sizeof(mpis)/sizeof(mpis[0]));
return(-1);
}
rc = gcry_sexp_build(&(pub_key), NULL, "(public-key(dsa(p%m)(q%m)(g%m)(y%m)))",
mpis[0], mpis[1], mpis[2], mpis[3]);
if((rc != GPG_ERR_NO_ERROR) || (pub_key == NULL)) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"gcry_sexp_build(private/rsa)",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_GNUTLS_GCRYPT_REPORT_ERROR(rc));
gcry_sexp_release(priv_key);
xmlSecGnuTLSDestroyMpis(mpis, sizeof(mpis)/sizeof(mpis[0]));
return(-1);
}
xmlSecGnuTLSDestroyMpis(mpis, sizeof(mpis)/sizeof(mpis[0]));
ret = xmlSecGCryptKeyDataDsaAdoptKeyPair(data, pub_key, priv_key);
if(ret < 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"xmlSecGCryptKeyDataDsaAdoptKeyPair",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
gcry_sexp_release(pub_key);
gcry_sexp_release(priv_key);
return(-1);
}
/* done, we "adopted" the key - destroy it! */
gnutls_x509_privkey_deinit(dsa_key);
return(0);
}
/**
* xmlSecGnuTLSKeyDataDsaAdoptPublicKey:
* @data: the pointer to DSA key data.
* @p: the pointer to p component of the DSA public key
* @q: the pointer to q component of the DSA public key
* @g: the pointer to g component of the DSA public key
* @y: the pointer to y component of the DSA public key
*
* Sets the value of DSA key data.
*
* Returns: 0 on success or a negative value otherwise.
*/
int
xmlSecGnuTLSKeyDataDsaAdoptPublicKey(xmlSecKeyDataPtr data,
gnutls_datum_t * p, gnutls_datum_t * q,
gnutls_datum_t * g, gnutls_datum_t * y) {
gnutls_datum_t params[4];
gcry_mpi_t mpis[4];
gcry_sexp_t pub_key = NULL;
int rc;
int ret;
xmlSecAssert2(xmlSecKeyDataCheckId(data, xmlSecGnuTLSKeyDataDsaId), -1);
xmlSecAssert2(p != NULL, -1);
xmlSecAssert2(q != NULL, -1);
xmlSecAssert2(g != NULL, -1);
xmlSecAssert2(y != NULL, -1);
/* copy */
memcpy(&(params[0]), p, sizeof(*p));
memcpy(&(params[1]), q, sizeof(*q));
memcpy(&(params[2]), g, sizeof(*g));
memcpy(&(params[3]), y, sizeof(*y));
/* convert to mpis */
ret = xmlSecGnuTLSConvertParamsToMpis(
params, sizeof(params)/sizeof(params[0]),
mpis, sizeof(mpis)/sizeof(mpis[0]));
if(ret < 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"xmlSecGnuTLSConvertParamsToMpis",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
/* don't destroy params - we got them from outside !!! */
return(-1);
}
/* don't destroy params - we got them from outside !!! */
/* build expressions */
rc = gcry_sexp_build(&(pub_key), NULL, "(public-key(dsa(p%m)(q%m)(g%m)(y%m)))",
mpis[0], mpis[1], mpis[2], mpis[3]);
if((rc != GPG_ERR_NO_ERROR) || (pub_key == NULL)) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"gcry_sexp_build(private/rsa)",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_GNUTLS_GCRYPT_REPORT_ERROR(rc));
xmlSecGnuTLSDestroyMpis(mpis, sizeof(mpis)/sizeof(mpis[0]));
return(-1);
}
xmlSecGnuTLSDestroyMpis(mpis, sizeof(mpis)/sizeof(mpis[0]));
ret = xmlSecGCryptKeyDataDsaAdoptKeyPair(data, pub_key, NULL);
if(ret < 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"xmlSecGCryptKeyDataDsaAdoptKeyPair",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
gcry_sexp_release(pub_key);
return(-1);
}
/* done, we "adopted" the key - destroy it! */
gnutls_free(p->data);
gnutls_free(q->data);
gnutls_free(g->data);
gnutls_free(y->data);
return(0);
}
#endif /* XMLSEC_NO_DSA */
#ifndef XMLSEC_NO_RSA
/**
* xmlSecGnuTLSKeyDataRsaGetKlass:
*
* The GnuTLS RSA key data klass.
*
* Returns: pointer to GnuTLS RSA key data klass.
*/
xmlSecKeyDataId
xmlSecGnuTLSKeyDataRsaGetKlass(void) {
return (xmlSecGCryptKeyDataRsaGetKlass());
}
/**
* xmlSecGnuTLSKeyDataRsaAdoptPrivateKey:
* @data: the pointer to RSA key data.
* @rsa_key: the pointer to GnuTLS RSA private key.
*
* Sets the value of RSA key data.
*
* Returns: 0 on success or a negative value otherwise.
*/
int
xmlSecGnuTLSKeyDataRsaAdoptPrivateKey(xmlSecKeyDataPtr data, gnutls_x509_privkey_t rsa_key) {
gnutls_datum_t params[6];
gcry_mpi_t mpis[6];
gcry_sexp_t priv_key = NULL;
gcry_sexp_t pub_key = NULL;
int rc;
int err;
int ret;
xmlSecAssert2(xmlSecKeyDataCheckId(data, xmlSecGnuTLSKeyDataRsaId), -1);
xmlSecAssert2(rsa_key != NULL, -1);
xmlSecAssert2(gnutls_x509_privkey_get_pk_algorithm(rsa_key) == GNUTLS_PK_RSA, -1);
/* get raw values */
err = gnutls_x509_privkey_export_rsa_raw(rsa_key,
&(params[0]), &(params[1]), &(params[2]),
&(params[3]), &(params[4]), &(params[5]));
if(err != GNUTLS_E_SUCCESS) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"gnutls_x509_privkey_export_rsa_raw",
XMLSEC_ERRORS_R_CRYPTO_FAILED,
XMLSEC_GNUTLS_REPORT_ERROR(err));
return(-1);
}
/* convert to mpis */
ret = xmlSecGnuTLSConvertParamsToMpis(
params, sizeof(params)/sizeof(params[0]),
mpis, sizeof(mpis)/sizeof(mpis[0]));
if(ret < 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"xmlSecGnuTLSConvertParamsToMpis",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
xmlSecGnuTLSDestroyParams(params, sizeof(params)/sizeof(params[0]));
return(-1);
}
xmlSecGnuTLSDestroyParams(params, sizeof(params)/sizeof(params[0]));
/* build expressions */
rc = gcry_sexp_build(&(priv_key), NULL, "(private-key(rsa((n%m)(e%m)(d%m)(p%m)(q%m)(u%m))))",
mpis[0], mpis[1], mpis[2],
mpis[3], mpis[4], mpis[5]);
if((rc != GPG_ERR_NO_ERROR) || (priv_key == NULL)) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"gcry_sexp_build(private/rsa)",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_GNUTLS_GCRYPT_REPORT_ERROR(rc));
xmlSecGnuTLSDestroyMpis(mpis, sizeof(mpis)/sizeof(mpis[0]));
return(-1);
}
rc = gcry_sexp_build(&(pub_key), NULL, "(public-key(rsa((n%m)(e%m))))",
mpis[0], mpis[1]);
if((rc != GPG_ERR_NO_ERROR) || (pub_key == NULL)) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"gcry_sexp_build(private/rsa)",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_GNUTLS_GCRYPT_REPORT_ERROR(rc));
gcry_sexp_release(priv_key);
xmlSecGnuTLSDestroyMpis(mpis, sizeof(mpis)/sizeof(mpis[0]));
return(-1);
}
xmlSecGnuTLSDestroyMpis(mpis, sizeof(mpis)/sizeof(mpis[0]));
ret = xmlSecGCryptKeyDataRsaAdoptKeyPair(data, pub_key, priv_key);
if(ret < 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"xmlSecGCryptKeyDataRsaAdoptKeyPair",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
gcry_sexp_release(pub_key);
gcry_sexp_release(priv_key);
return(-1);
}
/* done, we "adopted" the key - destroy it! */
gnutls_x509_privkey_deinit(rsa_key);
return(0);
}
/**
* xmlSecGnuTLSKeyDataRsaAdoptPublicKey:
* @data: the pointer to RSA key data.
* @m: the pointer to m component of the RSA public key
* @e: the pointer to e component of the RSA public key
*
* Sets the value of RSA key data.
*
* Returns: 0 on success or a negative value otherwise.
*/
int
xmlSecGnuTLSKeyDataRsaAdoptPublicKey(xmlSecKeyDataPtr data,
gnutls_datum_t * m, gnutls_datum_t * e) {
gnutls_datum_t params[2];
gcry_mpi_t mpis[2];
gcry_sexp_t pub_key = NULL;
int rc;
int ret;
xmlSecAssert2(xmlSecKeyDataCheckId(data, xmlSecGnuTLSKeyDataRsaId), -1);
xmlSecAssert2(m != NULL, -1);
xmlSecAssert2(e != NULL, -1);
/* copy */
memcpy(&(params[0]), m, sizeof(*m));
memcpy(&(params[1]), e, sizeof(*e));
/* convert to mpis */
ret = xmlSecGnuTLSConvertParamsToMpis(
params, sizeof(params)/sizeof(params[0]),
mpis, sizeof(mpis)/sizeof(mpis[0]));
if(ret < 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"xmlSecGnuTLSConvertParamsToMpis",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
/* don't destroy params - we got them from outside !!! */
return(-1);
}
/* don't destroy params - we got them from outside !!! */
/* build expressions */
rc = gcry_sexp_build(&(pub_key), NULL, "(public-key(rsa((n%m)(e%m))))",
mpis[0], mpis[1]);
if((rc != GPG_ERR_NO_ERROR) || (pub_key == NULL)) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"gcry_sexp_build(private/rsa)",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_GNUTLS_GCRYPT_REPORT_ERROR(rc));
xmlSecGnuTLSDestroyMpis(mpis, sizeof(mpis)/sizeof(mpis[0]));
return(-1);
}
xmlSecGnuTLSDestroyMpis(mpis, sizeof(mpis)/sizeof(mpis[0]));
ret = xmlSecGCryptKeyDataRsaAdoptKeyPair(data, pub_key, NULL);
if(ret < 0) {
xmlSecError(XMLSEC_ERRORS_HERE,
NULL,
"xmlSecGCryptKeyDataRsaAdoptKeyPair",
XMLSEC_ERRORS_R_XMLSEC_FAILED,
XMLSEC_ERRORS_NO_MESSAGE);
gcry_sexp_release(pub_key);
return(-1);
}
/* done, we "adopted" the key - destroy it! */
gnutls_free(m->data);
gnutls_free(e->data);
return(0);
}
#endif /* XMLSEC_NO_RSA */
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