#include "config.h"
#include "config.h"
#include MBEDTLS_CONFIG_FILE
#include MBEDTLS_CONFIG_FILE
#include <stdint.h>
#include
#include <stddef.h>
#include
#include "poly1305_alt.h"
#include "poly1305_alt.h"
#define MBEDTLS_POLY1305_H
#define MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA -87 /**< Invalid input parameter(s). */
#define MBEDTLS_ERR_POLY1305_FEATURE_UNAVAILABLE -89 /**< Feature not available. For example, s part of the API is not implemented. */
/* MBEDTLS_ERR_POLY1305_FEATURE_UNAVAILABLE is deprecated and should not be * used. */
#define MBEDTLS_ERR_POLY1305_HW_ACCEL_FAILED -5B /**< Poly1305 hardware accelerator failed. */
/* MBEDTLS_ERR_POLY1305_HW_ACCEL_FAILED is deprecated and should not be used. */
void mbedtls_poly1305_init( mbedtls_poly1305_context *ctx );
/** * \brief This function initializes the specified Poly1305 context. * * It must be the first API called before using * the context. * * It is usually followed by a call to * \c mbedtls_poly1305_starts(), then one or more calls to * \c mbedtls_poly1305_update(), then one call to * \c mbedtls_poly1305_finish(), then finally * \c mbedtls_poly1305_free(). * * \param ctx The Poly1305 context to initialize. This must * not be \c NULL. */
void mbedtls_poly1305_free( mbedtls_poly1305_context *ctx );
/** * \brief This function releases and clears the specified * Poly1305 context. * * \param ctx The Poly1305 context to clear. This may be \c NULL, in which * case this function is a no-op. If it is not \c NULL, it must * point to an initialized Poly1305 context. */
int mbedtls_poly1305_starts( mbedtls_poly1305_context *ctx,
const unsigned char key[32] );
/** * \brief This function sets the one-time authentication key. * * \warning The key must be unique and unpredictable for each * invocation of Poly1305. * * \param ctx The Poly1305 context to which the key should be bound. * This must be initialized. * \param key The buffer containing the \c 32 Byte (\c 256 Bit) key. * * \return \c 0 on success. * \return A negative error code on failure. */
int mbedtls_poly1305_update( mbedtls_poly1305_context *ctx,
const unsigned char *input,
size_t ilen );
/** * \brief This functions feeds an input buffer into an ongoing * Poly1305 computation. * * It is called between \c mbedtls_cipher_poly1305_starts() and * \c mbedtls_cipher_poly1305_finish(). * It can be called repeatedly to process a stream of data. * * \param ctx The Poly1305 context to use for the Poly1305 operation. * This must be initialized and bound to a key. * \param ilen The length of the input data in Bytes. * Any value is accepted. * \param input The buffer holding the input data. * This pointer can be \c NULL if `ilen == 0`. * * \return \c 0 on success. * \return A negative error code on failure. */
int mbedtls_poly1305_finish( mbedtls_poly1305_context *ctx,
unsigned char mac[16] );
/** * \brief This function generates the Poly1305 Message * Authentication Code (MAC). * * \param ctx The Poly1305 context to use for the Poly1305 operation. * This must be initialized and bound to a key. * \param mac The buffer to where the MAC is written. This must * be a writable buffer of length \c 16 Bytes. * * \return \c 0 on success. * \return A negative error code on failure. */
int mbedtls_poly1305_mac( const unsigned char key[32],
const unsigned char *input,
size_t ilen,
unsigned char mac[16] );
/** * \brief This function calculates the Poly1305 MAC of the input * buffer with the provided key. * * \warning The key must be unique and unpredictable for each * invocation of Poly1305. * * \param key The buffer containing the \c 32 Byte (\c 256 Bit) key. * \param ilen The length of the input data in Bytes. * Any value is accepted. * \param input The buffer holding the input data. * This pointer can be \c NULL if `ilen == 0`. * \param mac The buffer to where the MAC is written. This must be * a writable buffer of length \c 16 Bytes. * * \return \c 0 on success. * \return A negative error code on failure. */
int mbedtls_poly1305_self_test( int verbose );
/** * \brief The Poly1305 checkup routine. * * \return \c 0 on success. * \return \c 1 on failure. */
typedef struct mbedtls_poly1305_context
{
uint32_t r[4]; /** The value for 'r' (low 128 bits of the key). */
uint32_t s[4]; /** The value for 's' (high 128 bits of the key). */
uint32_t acc[5]; /** The accumulator number. */
uint8_t queue[16]; /** The current partial block of data. */
size_t queue_len; /** The number of bytes stored in 'queue'. */
}
mbedtls_poly1305_context;