diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/libstrongswan/Android.mk | 1 | ||||
| -rw-r--r-- | src/libstrongswan/Makefile.am | 1 | ||||
| -rw-r--r-- | src/libstrongswan/crypto/iv/iv_gen_rand.c | 79 | ||||
| -rw-r--r-- | src/libstrongswan/crypto/iv/iv_gen_rand.h | 32 |
4 files changed, 113 insertions, 0 deletions
diff --git a/src/libstrongswan/Android.mk b/src/libstrongswan/Android.mk index 74b409608..a108312c2 100644 --- a/src/libstrongswan/Android.mk +++ b/src/libstrongswan/Android.mk @@ -13,6 +13,7 @@ crypto/prfs/prf.c crypto/prfs/mac_prf.c crypto/pkcs5.c \ crypto/rngs/rng.c crypto/prf_plus.c crypto/signers/signer.c \ crypto/signers/mac_signer.c crypto/crypto_factory.c crypto/crypto_tester.c \ crypto/diffie_hellman.c crypto/aead.c crypto/transform.c \ +crypto/iv/iv_gen_rand.c \ credentials/credential_factory.c credentials/builder.c \ credentials/cred_encoding.c credentials/keys/private_key.c \ credentials/keys/public_key.c credentials/keys/shared_key.c \ diff --git a/src/libstrongswan/Makefile.am b/src/libstrongswan/Makefile.am index f4f09c12c..f5c373c33 100644 --- a/src/libstrongswan/Makefile.am +++ b/src/libstrongswan/Makefile.am @@ -11,6 +11,7 @@ crypto/prfs/prf.c crypto/prfs/mac_prf.c crypto/pkcs5.c \ crypto/rngs/rng.c crypto/prf_plus.c crypto/signers/signer.c \ crypto/signers/mac_signer.c crypto/crypto_factory.c crypto/crypto_tester.c \ crypto/diffie_hellman.c crypto/aead.c crypto/transform.c \ +crypto/iv/iv_gen_rand.c \ credentials/credential_factory.c credentials/builder.c \ credentials/cred_encoding.c credentials/keys/private_key.c \ credentials/keys/public_key.c credentials/keys/shared_key.c \ diff --git a/src/libstrongswan/crypto/iv/iv_gen_rand.c b/src/libstrongswan/crypto/iv/iv_gen_rand.c new file mode 100644 index 000000000..3448ee041 --- /dev/null +++ b/src/libstrongswan/crypto/iv/iv_gen_rand.c @@ -0,0 +1,79 @@ +/* + * Copyright (C) 2013 Tobias Brunner + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "iv_gen_rand.h" + +#include <library.h> + +typedef struct private_iv_gen_t private_iv_gen_t; + +/** + * Private data of an iv_gen_t object. + */ +struct private_iv_gen_t { + + /** + * Public iv_gen_t interface. + */ + iv_gen_t public; + + /** + * rng_t object + */ + rng_t *rng; +}; + +METHOD(iv_gen_t, get_iv, bool, + private_iv_gen_t *this, size_t size, u_int8_t *buffer) +{ + if (!this->rng) + { + return FALSE; + } + return this->rng->get_bytes(this->rng, size, buffer); +} + +METHOD(iv_gen_t, allocate_iv, bool, + private_iv_gen_t *this, size_t size, chunk_t *chunk) +{ + if (!this->rng) + { + return FALSE; + } + return this->rng->allocate_bytes(this->rng, size, chunk); +} + +METHOD(iv_gen_t, destroy, void, + private_iv_gen_t *this) +{ + DESTROY_IF(this->rng); + free(this); +} + +iv_gen_t *iv_gen_rand_create() +{ + private_iv_gen_t *this; + + INIT(this, + .public = { + .get_iv = _get_iv, + .allocate_iv = _allocate_iv, + .destroy = _destroy, + }, + .rng = lib->crypto->create_rng(lib->crypto, RNG_WEAK), + ); + + return &this->public; +} diff --git a/src/libstrongswan/crypto/iv/iv_gen_rand.h b/src/libstrongswan/crypto/iv/iv_gen_rand.h new file mode 100644 index 000000000..62d76ed21 --- /dev/null +++ b/src/libstrongswan/crypto/iv/iv_gen_rand.h @@ -0,0 +1,32 @@ +/* + * Copyright (C) 2013 Tobias Brunner + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +/** + * @{ @ingroup iv + */ + +#ifndef IV_GEN_RAND_H_ +#define IV_GEN_RAND_H_ + +#include <crypto/iv/iv_gen.h> + +/** + * Create an IV generator that generates random IVs. + * + * @return IV generator + */ +iv_gen_t *iv_gen_rand_create(); + +#endif /** IV_GEN_RAND_H_ @}*/ |