poly1305.h

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/*
 *  Copyright The Mbed TLS Contributors
 *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
 */
 
#ifndef MBEDTLS_POLY1305_H
#define MBEDTLS_POLY1305_H
#include "mbedtls/private_access.h"
 
#include "mbedtls/build_info.h"
 
#include <stdint.h>
#include <stddef.h>

#define MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA         -0x0057
 
#ifdef __cplusplus
extern "C" {
#endif
 
#if !defined(MBEDTLS_POLY1305_ALT)
 
typedef struct mbedtls_poly1305_context {
    uint32_t MBEDTLS_PRIVATE(r)[4];      
    uint32_t MBEDTLS_PRIVATE(s)[4];      
    uint32_t MBEDTLS_PRIVATE(acc)[5];    
    uint8_t MBEDTLS_PRIVATE(queue)[16];  
    size_t MBEDTLS_PRIVATE(queue_len);   
}
mbedtls_poly1305_context;
 
#else  /* MBEDTLS_POLY1305_ALT */
#include "poly1305_alt.h"
#endif /* MBEDTLS_POLY1305_ALT */

void mbedtls_poly1305_init(mbedtls_poly1305_context *ctx);

void mbedtls_poly1305_free(mbedtls_poly1305_context *ctx);

int mbedtls_poly1305_starts(mbedtls_poly1305_context *ctx,
                            const unsigned char key[32]);

int mbedtls_poly1305_update(mbedtls_poly1305_context *ctx,
                            const unsigned char *input,
                            size_t ilen);

int mbedtls_poly1305_finish(mbedtls_poly1305_context *ctx,
                            unsigned char mac[16]);

int mbedtls_poly1305_mac(const unsigned char key[32],
                         const unsigned char *input,
                         size_t ilen,
                         unsigned char mac[16]);
 
#if defined(MBEDTLS_SELF_TEST)
int mbedtls_poly1305_self_test(int verbose);
#endif /* MBEDTLS_SELF_TEST */
 
#ifdef __cplusplus
}
#endif
 
#endif /* MBEDTLS_POLY1305_H */