rsaref.h

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/* RSAREF.H - header file for RSAREF cryptographic toolkit
 */

/* Copyright (C) RSA Laboratories, a division of RSA Data Security,
     Inc., created 1991. All rights reserved.
 */

#ifndef _RSAREF_H_
#define _RSAREF_H_ 1

#define R_memset memset
#define R_memcpy memcpy
#define R_memcmp memcmp

#include "md5.h"

#ifdef __cplusplus
extern "C" {
#endif

/* RSA key lengths.
 */
#define MIN_RSA_MODULUS_BITS 1024
#define MAX_RSA_MODULUS_BITS 4096
#define MAX_RSA_MODULUS_LEN ((MAX_RSA_MODULUS_BITS + 7) / 8)
#define MAX_RSA_PRIME_BITS ((MAX_RSA_MODULUS_BITS + 1) / 2)
#define MAX_RSA_PRIME_LEN ((MAX_RSA_PRIME_BITS + 7) / 8)

/* Error codes.
 */
#define RE_CONTENT_ENCODING 0x0400
#define RE_DATA 0x0401
#define RE_DIGEST_ALGORITHM 0x0402
#define RE_ENCODING 0x0403
#define RE_KEY 0x0404
#define RE_KEY_ENCODING 0x0405
#define RE_LEN 0x0406
#define RE_MODULUS_LEN 0x0407
#define RE_NEED_RANDOM 0x0408
#define RE_PRIVATE_KEY 0x0409
#define RE_PUBLIC_KEY 0x040a
#define RE_SIGNATURE 0x040b
#define RE_SIGNATURE_ENCODING 0x040c
#define RE_ENCRYPTION_ALGORITHM 0x040d

/* Random structure.
 */
typedef struct {
  unsigned int bytesNeeded;
  unsigned char state[32];
  unsigned int outputAvailable;
  unsigned char output[16];
} R_RANDOM_STRUCT;

/* RSA public and private key.
 */
typedef struct {
  unsigned int bits;                           /* length in bits of modulus */
  unsigned char modulus[MAX_RSA_MODULUS_LEN];                    /* modulus */
  unsigned char exponent[MAX_RSA_MODULUS_LEN];           /* public exponent */
} R_RSA_PUBLIC_KEY;

typedef struct {
  unsigned int bits;                           /* length in bits of modulus */
  unsigned char modulus[MAX_RSA_MODULUS_LEN];                    /* modulus */
  unsigned char publicExponent[MAX_RSA_MODULUS_LEN];     /* public exponent */
  unsigned char exponent[MAX_RSA_MODULUS_LEN];          /* private exponent */
  unsigned char prime[2][MAX_RSA_PRIME_LEN];               /* prime factors */
  unsigned char primeExponent[2][MAX_RSA_PRIME_LEN];   /* exponents for CRT */
  unsigned char coefficient[MAX_RSA_PRIME_LEN];          /* CRT coefficient */
} R_RSA_PRIVATE_KEY;

/* RSA prototype key.
 */
typedef struct {
  unsigned int bits;                           /* length in bits of modulus */
  int useFermat4;                        /* public exponent (1 = F4, 0 = 3) */
} R_RSA_PROTO_KEY;



/* Random structures.
 */
int R_RandomInit PROTO_LIST ((R_RANDOM_STRUCT *));
int R_RandomUpdate PROTO_LIST
  ((R_RANDOM_STRUCT *, unsigned char *, unsigned int));
int R_GetRandomBytesNeeded PROTO_LIST ((unsigned int *, R_RANDOM_STRUCT *));
void R_RandomFinal PROTO_LIST ((R_RANDOM_STRUCT *));


/* Key-pair generation.
 */
int R_GeneratePEMKeys PROTO_LIST
  ((R_RSA_PUBLIC_KEY *, R_RSA_PRIVATE_KEY *, R_RSA_PROTO_KEY *,
    R_RANDOM_STRUCT *));

#define R_memset memset
#define R_memcpy memcpy
#define R_memcmp memcmp

#ifdef __cplusplus
}
#endif

#endif