nist_kw.h

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/*
 *  Copyright The Mbed TLS Contributors
 *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
 *
 *  This file is provided under the Apache License 2.0, or the
 *  GNU General Public License v2.0 or later.
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 *  Apache License 2.0:
 *
 *  Licensed under the Apache License, Version 2.0 (the "License"); you may
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 *
 *  http://www.apache.org/licenses/LICENSE-2.0
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 *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
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 *  GNU General Public License v2.0 or later:
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#ifndef MBEDTLS_NIST_KW_H
#define MBEDTLS_NIST_KW_H
 
#if !defined(MBEDTLS_CONFIG_FILE)
#include "config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
 
#include "cipher.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef enum
{
    MBEDTLS_KW_MODE_KW = 0,
    MBEDTLS_KW_MODE_KWP = 1
} mbedtls_nist_kw_mode_t;
 
#if !defined(MBEDTLS_NIST_KW_ALT)
// Regular implementation
//
 
typedef struct {
    mbedtls_cipher_context_t cipher_ctx;    
} mbedtls_nist_kw_context;
 
#else  /* MBEDTLS_NIST_key wrapping_ALT */
#include "nist_kw_alt.h"
#endif /* MBEDTLS_NIST_KW_ALT */
 
void mbedtls_nist_kw_init( mbedtls_nist_kw_context *ctx );
 
int mbedtls_nist_kw_setkey( mbedtls_nist_kw_context *ctx,
                            mbedtls_cipher_id_t cipher,
                            const unsigned char *key,
                            unsigned int keybits,
                            const int is_wrap );
 
void mbedtls_nist_kw_free( mbedtls_nist_kw_context *ctx );
 
int mbedtls_nist_kw_wrap( mbedtls_nist_kw_context *ctx, mbedtls_nist_kw_mode_t mode,
                          const unsigned char *input, size_t in_len,
                          unsigned char *output, size_t* out_len, size_t out_size );
 
int mbedtls_nist_kw_unwrap( mbedtls_nist_kw_context *ctx, mbedtls_nist_kw_mode_t mode,
                            const unsigned char *input, size_t in_len,
                            unsigned char *output, size_t* out_len, size_t out_size);
 
 
#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
int mbedtls_nist_kw_self_test( int verbose );
#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
 
#ifdef __cplusplus
}
#endif
 
#endif /* MBEDTLS_NIST_KW_H */