nist_kw.h

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/*
 *  Copyright The Mbed TLS Contributors
 *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
 */
 
#ifndef MBEDTLS_NIST_KW_H
#define MBEDTLS_NIST_KW_H
#include "mbedtls/private_access.h"
 
#include "mbedtls/build_info.h"
 
#include "mbedtls/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 MBEDTLS_PRIVATE(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 */