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/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/* lib/crypto/nss/enc_provider/camellia.c */
/*
* Copyright (c) 2010 Red Hat, Inc.
* All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* * Neither the name of Red Hat, Inc., nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "crypto_int.h"
#include "nss_gen.h"
static krb5_error_code
krb5int_camellia_encrypt(krb5_key key, const krb5_data *ivec,
krb5_crypto_iov *data, size_t num_data)
{
krb5_error_code ret;
ret = k5_nss_gen_import(key, CKM_CAMELLIA_CBC, CKA_ENCRYPT);
if (ret != 0)
return ret;
return k5_nss_gen_cts_iov(key, CKM_CAMELLIA_CBC, CKA_ENCRYPT,
ivec, data, num_data);
}
static krb5_error_code
krb5int_camellia_decrypt(krb5_key key, const krb5_data *ivec,
krb5_crypto_iov *data, size_t num_data)
{
krb5_error_code ret;
ret = k5_nss_gen_import(key, CKM_CAMELLIA_CBC, CKA_DECRYPT);
if (ret != 0)
return ret;
return k5_nss_gen_cts_iov(key, CKM_CAMELLIA_CBC, CKA_DECRYPT,
ivec, data, num_data);
}
krb5_error_code
krb5int_camellia_cbc_mac(krb5_key key, const krb5_crypto_iov *data,
size_t num_data, const krb5_data *ivec,
krb5_data *output)
{
krb5_error_code ret;
ret = k5_nss_gen_import(key, CKM_CAMELLIA_CBC, CKA_ENCRYPT);
if (ret != 0)
return ret;
return k5_nss_gen_cbcmac_iov(key, CKM_CAMELLIA_CBC, ivec, data, num_data,
output);
}
/*
* perhaps we should store the NSS context in the krb5_data state here?
*/
static krb5_error_code
camellia_init_state(const krb5_keyblock *key, krb5_keyusage usage,
krb5_data *state)
{
state->length = 16;
state->data = (void *) malloc(16);
if (state->data == NULL)
return ENOMEM;
memset(state->data, 0, state->length);
return 0;
}
const struct krb5_enc_provider krb5int_enc_camellia128 = {
16,
16, 16,
krb5int_camellia_encrypt,
krb5int_camellia_decrypt,
krb5int_camellia_cbc_mac,
camellia_init_state,
krb5int_default_free_state,
};
const struct krb5_enc_provider krb5int_enc_camellia256 = {
16,
32, 32,
krb5int_camellia_encrypt,
krb5int_camellia_decrypt,
krb5int_camellia_cbc_mac,
camellia_init_state,
krb5int_default_free_state,
k5_nss_gen_cleanup
};
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