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Annotation of embedaddon/strongswan/src/libstrongswan/crypto/iv/iv_gen.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * Copyright (C) 2015 Tobias Brunner
                      3:  * HSR Hochschule fuer Technik Rapperswil
                      4:  *
                      5:  * Copyright (C) 2015 Martin Willi
                      6:  * Copyright (C) 2015 revosec AG
                      7:  *
                      8:  * This program is free software; you can redistribute it and/or modify it
                      9:  * under the terms of the GNU General Public License as published by the
                     10:  * Free Software Foundation; either version 2 of the License, or (at your
                     11:  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
                     12:  *
                     13:  * This program is distributed in the hope that it will be useful, but
                     14:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
                     15:  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
                     16:  * for more details.
                     17:  */
                     18: 
                     19: #include "iv_gen.h"
                     20: #include "iv_gen_rand.h"
                     21: #include "iv_gen_seq.h"
                     22: #include "iv_gen_null.h"
                     23: 
                     24: /**
                     25:  * See header.
                     26:  */
                     27: iv_gen_t* iv_gen_create_for_alg(encryption_algorithm_t alg)
                     28: {
                     29:        switch (alg)
                     30:        {
                     31:                case ENCR_DES:
                     32:                case ENCR_3DES:
                     33:                case ENCR_RC5:
                     34:                case ENCR_IDEA:
                     35:                case ENCR_CAST:
                     36:                case ENCR_BLOWFISH:
                     37:                case ENCR_3IDEA:
                     38:                case ENCR_AES_CBC:
                     39:                case ENCR_CAMELLIA_CBC:
                     40:                case ENCR_SERPENT_CBC:
                     41:                case ENCR_TWOFISH_CBC:
                     42:                case ENCR_RC2_CBC:
                     43:                        return iv_gen_rand_create();
                     44:                case ENCR_AES_CTR:
                     45:                case ENCR_AES_CCM_ICV8:
                     46:                case ENCR_AES_CCM_ICV12:
                     47:                case ENCR_AES_CCM_ICV16:
                     48:                case ENCR_AES_GCM_ICV8:
                     49:                case ENCR_AES_GCM_ICV12:
                     50:                case ENCR_AES_GCM_ICV16:
                     51:                case ENCR_CAMELLIA_CTR:
                     52:                case ENCR_CAMELLIA_CCM_ICV8:
                     53:                case ENCR_CAMELLIA_CCM_ICV12:
                     54:                case ENCR_CAMELLIA_CCM_ICV16:
                     55:                case ENCR_CHACHA20_POLY1305:
                     56:                case ENCR_NULL_AUTH_AES_GMAC:
                     57:                        return iv_gen_seq_create();
                     58:                case ENCR_NULL:
                     59:                        return iv_gen_null_create();
                     60:                case ENCR_UNDEFINED:
                     61:                case ENCR_DES_ECB:
                     62:                case ENCR_DES_IV32:
                     63:                case ENCR_DES_IV64:
                     64:                case ENCR_AES_ECB:
                     65:                        break;
                     66:        }
                     67:        return NULL;
                     68: }