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/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/* lib/crypto/nss/nss_gen.h */
/*
* 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 "k5-int.h"
#include "pkcs11t.h"
#include "sechash.h"
#include "secmodt.h"
/* 512 bits is bigger than anything defined to date */
#define MAX_KEY_LENGTH 64
#define MAX_BLOCK_SIZE 64
/*
* Common nss utils
*/
/* Make sure NSS is properly initialized. */
krb5_error_code k5_nss_init(void);
/* Import a key into NSS and store the handle in krb5_key. */
krb5_error_code
k5_nss_gen_import(krb5_key key, CK_MECHANISM_TYPE mech,
CK_ATTRIBUTE_TYPE operation);
/* Clean up an imported key. */
void
k5_nss_gen_cleanup(krb5_key key);
/* Create a new crypto/hash/sign context from a krb5_key. */
PK11Context *
k5_nss_create_context(krb5_key krb_key, CK_MECHANISM_TYPE mechanism,
CK_ATTRIBUTE_TYPE operation, SECItem * param);
/* Map an NSS error into a krb5_error_code. */
krb5_error_code k5_nss_map_error(int nss_error);
krb5_error_code k5_nss_map_last_error(void);
/*
* Common encryption functions
*/
/* Encrypt/decrypt block modes except cts using iov. */
krb5_error_code
k5_nss_gen_block_iov(krb5_key key, CK_MECHANISM_TYPE mech,
CK_ATTRIBUTE_TYPE operation, const krb5_data *ivec,
krb5_crypto_iov *data, size_t num_data);
/* Encrypt/decrypt stream modes using iov. */
krb5_error_code
k5_nss_gen_stream_iov(krb5_key key, krb5_data *state, CK_MECHANISM_TYPE mech,
CK_ATTRIBUTE_TYPE operation, krb5_crypto_iov *data,
size_t num_data);
/* Encrypt/decrypt block modes using cts. */
krb5_error_code
k5_nss_gen_cts_iov(krb5_key key, CK_MECHANISM_TYPE mech,
CK_ATTRIBUTE_TYPE operation, const krb5_data *ivec,
krb5_crypto_iov *data, size_t num_data);
/* Compute a CBC-MAC. */
krb5_error_code
k5_nss_gen_cbcmac_iov(krb5_key key, CK_MECHANISM_TYPE mech,
const krb5_data *ivec, const krb5_crypto_iov *data,
size_t num_data, krb5_data *output);
/* Stream state management calls. */
krb5_error_code k5_nss_stream_init_state(krb5_data *new_state);
void k5_nss_stream_free_state(krb5_data *state);
/*
* Common hash functions
*/
/* All hash modes. */
krb5_error_code
k5_nss_gen_hash(HASH_HashType hashType, const krb5_crypto_iov *data,
size_t num_data, krb5_data *output);
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