xbn_fp.h

IBE是一种非对称密码技术

/* Copyright 2003-2006, Voltage Security, all rights reserved.
 */

#include "ictk.h"
#include "xbn_z.h"

#ifndef XBN_FP_H
#define XBN_FP_H

#ifdef __cplusplus
extern "C" {
#endif

/* x = -a (mod p)
 */
int fpNegate (
   z_t *x,
   z_t *a,
   z_t *p
   );

/* x = a + b (mod p)
 */
int fpAdd (
   z_t *x,
   z_t *a,
   z_t *b,
   z_t *p
   );

/* x = a - b (mod p)
 */
int fpSub (
   z_t *x,
   z_t *a,
   z_t *b,
   z_t *p
   );

/* x = a * b (mod p)
 */
int fpMul (
   z_t *x,
   z_t *a,
   z_t *b,
   z_t *p
   );

/* x = a * a (mod p)
 */
int fpSqr (
   z_t *x,
   z_t *a,
   z_t *p
   );

/* x = square roots of a (mod p);
 * Set num to be the number of roots
 */
int fpSqrt (
   int *number,
   z_t *x,
   z_t *a,
   z_t *p,
   bf_context_t *bf
   );

#ifdef __cplusplus
}
#endif

#endif // XBN_FP_H