/** 

 * XML Security Library (http://www.aleksey.com/xmlsec).

 *

 *

 * This is free software; see Copyright file in the source

 * distribution for preciese wording.

 * 

 * Copyright (C) 2002-2003 Aleksey Sanin <aleksey@aleksey.com>

 * Portion Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 

 */

#include "xmlsec_config.h"

#ifndef XMLSEC_NO_CRYPTO_DYNAMIC_LOADING

#include "xmlsec_globals.h"

#include <stdlib.h>

#include <stdio.h>

#include <stdarg.h>

#include <string.h>

#include <time.h>

#include <libxml2_tree.h>

#include "xmlsec_xmlsec.h"

#include "xmlsec_app.h"

#include "xmlsec_list.h"

#include "xmlsec_keysdata.h"

#include "xmlsec_keys.h"

#include "xmlsec_keysmngr.h"

#include "xmlsec_transforms.h"

#include "xmlsec_private.h"

#include "xmlsec_errors.h"

/******************************************************************************

 *

 * Crypto Init/shutdown

 *

 *****************************************************************************/

/**

 * xmlSecCryptoInit:

 * 

 * XMLSec library specific crypto engine initialization. 

 *

 * Returns 0 on success or a negative value otherwise.

 */

int 

xmlSecCryptoInit(void) {

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->cryptoInit == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "cryptoInit",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(-1);

    }

    return(xmlSecCryptoDLGetFunctions()->cryptoInit());

}

/**

 * xmlSecCryptoShutdown:

 * 

 * XMLSec library specific crypto engine shutdown. 

 *

 * Returns 0 on success or a negative value otherwise.

 */

int 

xmlSecCryptoShutdown(void) {

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->cryptoShutdown == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "cryptoShutdown",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(-1);

    }

    return(xmlSecCryptoDLGetFunctions()->cryptoShutdown());

}

/**

 * xmlSecCryptoKeysMngrInit:

 * @mngr:		the pointer to keys manager.

 *

 * Adds crypto specific key data stores in keys manager.

 *

 * Returns 0 on success or a negative value otherwise.

 */

int 

xmlSecCryptoKeysMngrInit(xmlSecKeysMngrPtr mngr) {

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->cryptoKeysMngrInit == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "cryptoKeysMngrInit",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(-1);

    }

    return(xmlSecCryptoDLGetFunctions()->cryptoKeysMngrInit(mngr));

}

/******************************************************************************

 *

 * Key data ids

 *

 *****************************************************************************/

/** 

 * xmlSecKeyDataAesGetKlass:

 * 

 * The AES key data klass.

 *

 * Returns AES key data klass or NULL if an error occurs

 * (xmlsec-crypto library is not loaded or the AES key data

 * klass is not implemented).

 */

xmlSecKeyDataId 

xmlSecKeyDataAesGetKlass(void) {

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->keyDataAesGetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "keyDataAesId",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecKeyDataIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->keyDataAesGetKlass());

}

/** 

 * xmlSecKeyDataDesGetKlass:

 * 

 * The DES key data klass.

 *

 * Returns DES key data klass or NULL if an error occurs

 * (xmlsec-crypto library is not loaded or the DES key data

 * klass is not implemented).

 */

xmlSecKeyDataId 

xmlSecKeyDataDesGetKlass(void) {

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->keyDataDesGetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "keyDataDesId",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecKeyDataIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->keyDataDesGetKlass());

}

/** 

 * xmlSecKeyDataDsaGetKlass:

 * 

 * The DSA key data klass.

 *

 * Returns DSA key data klass or NULL if an error occurs

 * (xmlsec-crypto library is not loaded or the DSA key data

 * klass is not implemented).

 */

xmlSecKeyDataId	

xmlSecKeyDataDsaGetKlass(void) {

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->keyDataDsaGetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "keyDataDsaId",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecKeyDataIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->keyDataDsaGetKlass());

}

/** 

 * xmlSecKeyDataHmacGetKlass:

 * 

 * The HMAC key data klass.

 *

 * Returns HMAC key data klass or NULL if an error occurs

 * (xmlsec-crypto library is not loaded or the HMAC key data

 * klass is not implemented).

 */

xmlSecKeyDataId	

xmlSecKeyDataHmacGetKlass(void) {

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->keyDataHmacGetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "keyDataHmacId",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecKeyDataIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->keyDataHmacGetKlass());

}

/** 

 * xmlSecKeyDataRsaGetKlass:

 * 

 * The RSA key data klass.

 *

 * Returns RSA key data klass or NULL if an error occurs

 * (xmlsec-crypto library is not loaded or the RSA key data

 * klass is not implemented).

 */

xmlSecKeyDataId	

xmlSecKeyDataRsaGetKlass(void) {

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->keyDataRsaGetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "keyDataRsaId",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecKeyDataIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->keyDataRsaGetKlass());

}

/** 

 * xmlSecKeyDataX509GetKlass:

 * 

 * The X509 key data klass.

 *

 * Returns X509 key data klass or NULL if an error occurs

 * (xmlsec-crypto library is not loaded or the X509 key data

 * klass is not implemented).

 */

xmlSecKeyDataId	

xmlSecKeyDataX509GetKlass(void) {

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->keyDataX509GetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "keyDataX509Id",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecKeyDataIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->keyDataX509GetKlass());

}

/** 

 * xmlSecKeyDataRawX509CertGetKlass:

 * 

 * The raw X509 cert key data klass.

 *

 * Returns raw x509 cert key data klass or NULL if an error occurs

 * (xmlsec-crypto library is not loaded or the raw X509 cert key data

 * klass is not implemented).

 */

xmlSecKeyDataId	

xmlSecKeyDataRawX509CertGetKlass(void) {

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->keyDataRawX509CertGetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "keyDataRawX509CertId",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecKeyDataIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->keyDataRawX509CertGetKlass());

}

/******************************************************************************

 *

 * Key data store ids

 *

 *****************************************************************************/

/** 

 * xmlSecX509StoreGetKlass:

 * 

 * The X509 certificates key data store klass.

 *

 * Returns pointer to X509 certificates key data store klass or NULL if 

 * an error occurs (xmlsec-crypto library is not loaded or the raw X509 

 * cert key data klass is not implemented).

 */

xmlSecKeyDataStoreId 

xmlSecX509StoreGetKlass(void) {

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->x509StoreGetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "x509StoreId",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecKeyStoreIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->x509StoreGetKlass());

}

/******************************************************************************

 *

 * Crypto transforms ids

 *

 *****************************************************************************/

/**

 * xmlSecTransformAes128CbcGetKlass:

 * 

 * AES 128 CBC encryption transform klass.

 * 

 * Returns pointer to AES 128 CBC encryption transform or NULL if an error

 * occurs (the xmlsec-crypto library is not loaded or this transform is not

 * implemented).

 */ 

xmlSecTransformId 

xmlSecTransformAes128CbcGetKlass(void) {

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->transformAes128CbcGetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "transformAes128CbcId",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecTransformIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->transformAes128CbcGetKlass());

}

/**

 * xmlSecTransformAes192CbcGetKlass:

 * 

 * AES 192 CBC encryption transform klass.

 * 

 * Returns pointer to AES 192 CBC encryption transform or NULL if an error

 * occurs (the xmlsec-crypto library is not loaded or this transform is not

 * implemented).

 */ 

xmlSecTransformId 

xmlSecTransformAes192CbcGetKlass(void) {

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->transformAes192CbcGetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "transformAes192CbcId",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecTransformIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->transformAes192CbcGetKlass());

}

/**

 * xmlSecTransformAes256CbcGetKlass:

 * 

 * AES 256 CBC encryption transform klass.

 * 

 * Returns pointer to AES 256 CBC encryption transform or NULL if an error

 * occurs (the xmlsec-crypto library is not loaded or this transform is not

 * implemented).

 */ 

xmlSecTransformId 

xmlSecTransformAes256CbcGetKlass(void) {

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->transformAes256CbcGetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "transformAes256CbcId",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecTransformIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->transformAes256CbcGetKlass());

}

/** 

 * xmlSecTransformKWAes128GetKlass:

 *

 * The AES-128 kew wrapper transform klass.

 *

 * Returns AES-128 kew wrapper transform klass or NULL if an error

 * occurs (the xmlsec-crypto library is not loaded or this transform is not

 * implemented).

 */

xmlSecTransformId 

xmlSecTransformKWAes128GetKlass(void) {	

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->transformKWAes128GetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "transformKWAes128Id",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecTransformIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->transformKWAes128GetKlass());

}

/** 

 * xmlSecTransformKWAes192GetKlass:

 *

 * The AES-192 kew wrapper transform klass.

 *

 * Returns AES-192 kew wrapper transform klass or NULL if an error

 * occurs (the xmlsec-crypto library is not loaded or this transform is not

 * implemented).

 */

xmlSecTransformId 

xmlSecTransformKWAes192GetKlass(void) {	

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->transformKWAes192GetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "transformKWAes192Id",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecTransformIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->transformKWAes192GetKlass());

}

/** 

 * xmlSecTransformKWAes256GetKlass:

 *

 * The AES-256 kew wrapper transform klass.

 *

 * Returns AES-256 kew wrapper transform klass or NULL if an error

 * occurs (the xmlsec-crypto library is not loaded or this transform is not

 * implemented).

 */

xmlSecTransformId 

xmlSecTransformKWAes256GetKlass(void) {	

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->transformKWAes256GetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "transformKWAes256Id",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecTransformIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->transformKWAes256GetKlass());

}

/** 

 * xmlSecTransformDes3CbcGetKlass:

 *

 * Triple DES CBC encryption transform klass.

 * 

 * Returns pointer to Triple DES encryption transform or NULL if an error

 * occurs (the xmlsec-crypto library is not loaded or this transform is not

 * implemented).

 */

xmlSecTransformId 

xmlSecTransformDes3CbcGetKlass(void) {	

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->transformDes3CbcGetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "transformDes3CbcId",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecTransformIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->transformDes3CbcGetKlass());

}

/** 

 * xmlSecTransformKWDes3GetKlass:

 * 

 * The Triple DES key wrapper transform klass.

 *

 * Returns Triple DES key wrapper transform klass or NULL if an error

 * occurs (the xmlsec-crypto library is not loaded or this transform is not

 * implemented).

 */

xmlSecTransformId 

xmlSecTransformKWDes3GetKlass(void) {

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->transformKWDes3GetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "transformKWDes3Id",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecTransformIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->transformKWDes3GetKlass());

}

/**

 * xmlSecTransformDsaSha1GetKlass:

 * 

 * The DSA-SHA1 signature transform klass.

 *

 * Returns DSA-SHA1 signature transform klass or NULL if an error

 * occurs (the xmlsec-crypto library is not loaded or this transform is not

 * implemented).

 */

xmlSecTransformId 

xmlSecTransformDsaSha1GetKlass(void) {	

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->transformDsaSha1GetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "transformDsaSha1Id",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecTransformIdUnknown);

    }

    return(xmlSecCryptoDLGetFunctions()->transformDsaSha1GetKlass());

}

/** 

 * xmlSecTransformHmacMd5GetKlass:

 *

 * The HMAC-MD5 transform klass.

 *

 * Returns the HMAC-MD5 transform klass or NULL if an error

 * occurs (the xmlsec-crypto library is not loaded or this transform is not

 * implemented).

 */

xmlSecTransformId 

xmlSecTransformHmacMd5GetKlass(void) {	

    if((xmlSecCryptoDLGetFunctions() == NULL) || (xmlSecCryptoDLGetFunctions()->transformHmacMd5GetKlass == NULL)) {

	xmlSecError(XMLSEC_ERRORS_HERE,

		    NULL,

		    "transformHmacMd5Id",

		    XMLSEC_ERRORS_R_NOT_IMPLEMENTED,

		    XMLSEC_ERRORS_NO_MESSAGE);

        return(xmlSecTransformIdUnknown);

    }