cipher_internal.h

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#ifndef MBEDTLS_CIPHER_WRAP_H
#define MBEDTLS_CIPHER_WRAP_H

#if !defined(MBEDTLS_CONFIG_FILE)
#include "config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif

#include "cipher.h"

#ifdef __cplusplus
extern "C" {
#endif

struct mbedtls_cipher_base_t
{
    mbedtls_cipher_id_t cipher;

    int (*ecb_func)( void *ctx, mbedtls_operation_t mode,
                     const unsigned char *input, unsigned char *output );

#if defined(MBEDTLS_CIPHER_MODE_CBC)

    int (*cbc_func)( void *ctx, mbedtls_operation_t mode, size_t length,
                     unsigned char *iv, const unsigned char *input,
                     unsigned char *output );
#endif

#if defined(MBEDTLS_CIPHER_MODE_CFB)

    int (*cfb_func)( void *ctx, mbedtls_operation_t mode, size_t length, size_t *iv_off,
                     unsigned char *iv, const unsigned char *input,
                     unsigned char *output );
#endif

#if defined(MBEDTLS_CIPHER_MODE_CTR)

    int (*ctr_func)( void *ctx, size_t length, size_t *nc_off,
                     unsigned char *nonce_counter, unsigned char *stream_block,
                     const unsigned char *input, unsigned char *output );
#endif

#if defined(MBEDTLS_CIPHER_MODE_STREAM)

    int (*stream_func)( void *ctx, size_t length,
                        const unsigned char *input, unsigned char *output );
#endif

    int (*setkey_enc_func)( void *ctx, const unsigned char *key,
                            unsigned int key_bitlen );

    int (*setkey_dec_func)( void *ctx, const unsigned char *key,
                            unsigned int key_bitlen);

    void * (*ctx_alloc_func)( void );

    void (*ctx_free_func)( void *ctx );

};

typedef struct
{
    mbedtls_cipher_type_t type;
    const mbedtls_cipher_info_t *info;
} mbedtls_cipher_definition_t;

extern const mbedtls_cipher_definition_t mbedtls_cipher_definitions[];

extern int mbedtls_cipher_supported[];

#ifdef __cplusplus
}
#endif

#endif /* MBEDTLS_CIPHER_WRAP_H */