mirror of
git://source.winehq.org/git/wine.git
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461 lines
15 KiB
C
461 lines
15 KiB
C
/*
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* dlls/rsaenh/tomcrypt.h
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* Function prototypes, type definitions and constant definitions
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* for LibTomCrypt code.
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*
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* Copyright 2004 Michael Jung
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* Based on public domain code by Tom St Denis (tomstdenis@iahu.ca)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/*
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* This file contains code from the LibTomCrypt cryptographic
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* library written by Tom St Denis (tomstdenis@iahu.ca). LibTomCrypt
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* is in the public domain. The code in this file is tailored to
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* special requirements. Take a look at http://libtomcrypt.org for the
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* original version.
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*/
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#ifndef __WINE_TOMCRYPT_H_
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#define __WINE_TOMCRYPT_H_
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <limits.h>
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#include "basetsd.h"
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/* error codes [will be expanded in future releases] */
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enum {
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CRYPT_OK=0, /* Result OK */
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CRYPT_ERROR, /* Generic Error */
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CRYPT_NOP, /* Not a failure but no operation was performed */
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CRYPT_INVALID_KEYSIZE, /* Invalid key size given */
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CRYPT_INVALID_ROUNDS, /* Invalid number of rounds */
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CRYPT_FAIL_TESTVECTOR, /* Algorithm failed test vectors */
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CRYPT_BUFFER_OVERFLOW, /* Not enough space for output */
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CRYPT_INVALID_PACKET, /* Invalid input packet given */
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CRYPT_INVALID_PRNGSIZE, /* Invalid number of bits for a PRNG */
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CRYPT_ERROR_READPRNG, /* Could not read enough from PRNG */
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CRYPT_INVALID_CIPHER, /* Invalid cipher specified */
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CRYPT_INVALID_HASH, /* Invalid hash specified */
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CRYPT_INVALID_PRNG, /* Invalid PRNG specified */
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CRYPT_MEM, /* Out of memory */
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CRYPT_PK_TYPE_MISMATCH, /* Not equivalent types of PK keys */
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CRYPT_PK_NOT_PRIVATE, /* Requires a private PK key */
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CRYPT_INVALID_ARG, /* Generic invalid argument */
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CRYPT_FILE_NOTFOUND, /* File Not Found */
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CRYPT_PK_INVALID_TYPE, /* Invalid type of PK key */
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CRYPT_PK_INVALID_SYSTEM,/* Invalid PK system specified */
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CRYPT_PK_DUP, /* Duplicate key already in key ring */
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CRYPT_PK_NOT_FOUND, /* Key not found in keyring */
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CRYPT_PK_INVALID_SIZE, /* Invalid size input for PK parameters */
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CRYPT_INVALID_PRIME_SIZE/* Invalid size of prime requested */
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};
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#define CONST64(a,b) ((((ULONG64)(a)) << 32) | (b))
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typedef ULONG64 ulong64;
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/* this is the "32-bit at least" data type
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* Re-define it to suit your platform but it must be at least 32-bits
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*/
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typedef ULONG32 ulong32;
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/* ---- HELPER MACROS ---- */
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#define STORE32H(x, y) \
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{ (y)[0] = (unsigned char)(((x)>>24)&255); (y)[1] = (unsigned char)(((x)>>16)&255); \
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(y)[2] = (unsigned char)(((x)>>8)&255); (y)[3] = (unsigned char)((x)&255); }
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#define LOAD32H(x, y) \
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{ x = ((unsigned long)((y)[0] & 255)<<24) | \
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((unsigned long)((y)[1] & 255)<<16) | \
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((unsigned long)((y)[2] & 255)<<8) | \
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((unsigned long)((y)[3] & 255)); }
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#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)) && !defined(INTEL_CC)
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static inline unsigned ROR(unsigned word, int i)
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{
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__asm__("rorl %%cl,%0"
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:"=r" (word)
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:"0" (word),"c" (i));
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return word;
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}
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#else
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/* rotates the hard way */
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#define ROR(x, y) ( ((((unsigned long)(x)&0xFFFFFFFFUL)>>(unsigned long)((y)&31)) | \
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((unsigned long)(x)<<(unsigned long)(32-((y)&31)))) & 0xFFFFFFFFUL)
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#endif
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#undef MIN
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#define MIN(x, y) ( ((x)<(y))?(x):(y) )
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#define byte(x, n) (((x) >> (8 * (n))) & 255)
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typedef struct tag_rc2_key {
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unsigned xkey[64];
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} rc2_key;
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typedef struct tag_des_key {
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ulong32 ek[32], dk[32];
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} des_key;
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typedef struct tag_des3_key {
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ulong32 ek[3][32], dk[3][32];
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} des3_key;
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typedef struct tag_aes_key {
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ulong32 eK[64], dK[64];
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int Nr;
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} aes_key;
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int rc2_setup(const unsigned char *key, int keylen, int bits, int num_rounds, rc2_key *skey);
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void rc2_ecb_encrypt(const unsigned char *pt, unsigned char *ct, rc2_key *key);
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void rc2_ecb_decrypt(const unsigned char *ct, unsigned char *pt, rc2_key *key);
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int des_setup(const unsigned char *key, int keylen, int num_rounds, des_key *skey);
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void des_ecb_encrypt(const unsigned char *pt, unsigned char *ct, const des_key *key);
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void des_ecb_decrypt(const unsigned char *ct, unsigned char *pt, const des_key *key);
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int des3_setup(const unsigned char *key, int keylen, int num_rounds, des3_key *skey);
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void des3_ecb_encrypt(const unsigned char *pt, unsigned char *ct, const des3_key *key);
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void des3_ecb_decrypt(const unsigned char *ct, unsigned char *pt, const des3_key *key);
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int aes_setup(const unsigned char *key, int keylen, int rounds, aes_key *skey);
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void aes_ecb_encrypt(const unsigned char *pt, unsigned char *ct, aes_key *skey);
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void aes_ecb_decrypt(const unsigned char *ct, unsigned char *pt, aes_key *skey);
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struct rc4_prng {
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int x, y;
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unsigned char buf[256];
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};
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typedef union Prng_state {
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struct rc4_prng rc4;
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} prng_state;
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int rc4_start(prng_state *prng);
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int rc4_add_entropy(const unsigned char *buf, unsigned long len, prng_state *prng);
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int rc4_ready(prng_state *prng);
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unsigned long rc4_read(unsigned char *buf, unsigned long len, prng_state *prng);
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/* some default configurations.
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*
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* A "mp_digit" must be able to hold DIGIT_BIT + 1 bits
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* A "mp_word" must be able to hold 2*DIGIT_BIT + 1 bits
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*
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* At the very least a mp_digit must be able to hold 7 bits
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* [any size beyond that is ok provided it doesn't overflow the data type]
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*/
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typedef unsigned long mp_digit;
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typedef ulong64 mp_word;
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#define DIGIT_BIT 28
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#define MP_DIGIT_BIT DIGIT_BIT
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#define MP_MASK ((((mp_digit)1)<<((mp_digit)DIGIT_BIT))-((mp_digit)1))
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#define MP_DIGIT_MAX MP_MASK
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/* equalities */
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#define MP_LT -1 /* less than */
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#define MP_EQ 0 /* equal to */
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#define MP_GT 1 /* greater than */
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#define MP_ZPOS 0 /* positive integer */
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#define MP_NEG 1 /* negative */
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#define MP_OKAY 0 /* ok result */
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#define MP_MEM -2 /* out of mem */
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#define MP_VAL -3 /* invalid input */
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#define MP_RANGE MP_VAL
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#define MP_YES 1 /* yes response */
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#define MP_NO 0 /* no response */
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/* Primality generation flags */
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#define LTM_PRIME_BBS 0x0001 /* BBS style prime */
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#define LTM_PRIME_SAFE 0x0002 /* Safe prime (p-1)/2 == prime */
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#define LTM_PRIME_2MSB_OFF 0x0004 /* force 2nd MSB to 0 */
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#define LTM_PRIME_2MSB_ON 0x0008 /* force 2nd MSB to 1 */
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typedef int mp_err;
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/* define this to use lower memory usage routines (exptmods mostly) */
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/* #define MP_LOW_MEM */
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#define MP_PREC 64 /* default digits of precision */
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/* size of comba arrays, should be at least 2 * 2**(BITS_PER_WORD - BITS_PER_DIGIT*2) */
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#define MP_WARRAY (1 << (sizeof(mp_word) * CHAR_BIT - 2 * DIGIT_BIT + 1))
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/* the infamous mp_int structure */
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typedef struct {
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int used, alloc, sign;
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mp_digit *dp;
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} mp_int;
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/* callback for mp_prime_random, should fill dst with random bytes and return how many read [up to len] */
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typedef int ltm_prime_callback(unsigned char *dst, int len, void *dat);
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#define DIGIT(m,k) ((m)->dp[(k)])
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/* error code to char* string */
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char *mp_error_to_string(int code);
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/* init a null terminated series of arguments */
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int WINAPIV mp_init_multi(mp_int *mp, ...);
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/* clear a null terminated series of arguments */
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void WINAPIV mp_clear_multi(mp_int *mp, ...);
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/* shrink ram required for a bignum */
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int mp_shrink(mp_int *a);
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/* ---> Basic Manipulations <--- */
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#define mp_iszero(a) (((a)->used == 0) ? MP_YES : MP_NO)
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#define mp_iseven(a) (((a)->used > 0 && (((a)->dp[0] & 1) == 0)) ? MP_YES : MP_NO)
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#define mp_isodd(a) (((a)->used > 0 && (((a)->dp[0] & 1) == 1)) ? MP_YES : MP_NO)
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/* set a 32-bit const */
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int mp_set_int(mp_int *a, unsigned long b);
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/* get a 32-bit value */
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unsigned long mp_get_int(const mp_int * a);
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/* initialize and set a digit */
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int mp_init_set (mp_int * a, mp_digit b);
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/* initialize and set 32-bit value */
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int mp_init_set_int (mp_int * a, unsigned long b);
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/* copy, b = a */
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int mp_copy(const mp_int *a, mp_int *b);
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/* inits and copies, a = b */
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int mp_init_copy(mp_int *a, const mp_int *b);
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/* ---> digit manipulation <--- */
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/* I Love Earth! */
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/* makes a pseudo-random int of a given size */
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int mp_rand(mp_int *a, int digits);
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/* ---> binary operations <--- */
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/* c = a XOR b */
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int mp_xor(mp_int *a, mp_int *b, mp_int *c);
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/* c = a OR b */
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int mp_or(mp_int *a, mp_int *b, mp_int *c);
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/* c = a AND b */
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int mp_and(mp_int *a, mp_int *b, mp_int *c);
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/* ---> Basic arithmetic <--- */
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/* b = -a */
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int mp_neg(mp_int *a, mp_int *b);
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/* compare a to b */
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int mp_cmp(const mp_int *a, const mp_int *b);
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/* c = a + b */
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int mp_add(mp_int *a, mp_int *b, mp_int *c);
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/* c = a - b */
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int mp_sub(mp_int *a, mp_int *b, mp_int *c);
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/* c = a * b */
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int mp_mul(const mp_int *a, const mp_int *b, mp_int *c);
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/* c = a mod b, 0 <= c < b */
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int mp_mod(const mp_int *a, mp_int *b, mp_int *c);
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/* ---> single digit functions <--- */
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/* compare against a single digit */
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int mp_cmp_d(const mp_int *a, mp_digit b);
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/* c = a - b */
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int mp_sub_d(mp_int *a, mp_digit b, mp_int *c);
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/* a/3 => 3c + d == a */
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int mp_div_3(mp_int *a, mp_int *c, mp_digit *d);
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/* c = a**b */
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int mp_expt_d(mp_int *a, mp_digit b, mp_int *c);
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/* ---> number theory <--- */
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/* d = a + b (mod c) */
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int mp_addmod(mp_int *a, mp_int *b, mp_int *c, mp_int *d);
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/* d = a - b (mod c) */
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int mp_submod(mp_int *a, mp_int *b, mp_int *c, mp_int *d);
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/* d = a * b (mod c) */
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int mp_mulmod(const mp_int *a, const mp_int *b, mp_int *c, mp_int *d);
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/* c = 1/a (mod b) */
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int mp_invmod(const mp_int *a, mp_int *b, mp_int *c);
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/* c = (a, b) */
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int mp_gcd(const mp_int *a, const mp_int *b, mp_int *c);
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/* produces value such that U1*a + U2*b = U3 */
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int mp_exteuclid(mp_int *a, mp_int *b, mp_int *U1, mp_int *U2, mp_int *U3);
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/* c = [a, b] or (a*b)/(a, b) */
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int mp_lcm(const mp_int *a, const mp_int *b, mp_int *c);
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/* finds one of the b'th root of a, such that |c|**b <= |a|
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*
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* returns error if a < 0 and b is even
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*/
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int mp_n_root(mp_int *a, mp_digit b, mp_int *c);
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/* special sqrt algo */
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int mp_sqrt(mp_int *arg, mp_int *ret);
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/* is number a square? */
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int mp_is_square(mp_int *arg, int *ret);
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/* computes the jacobi c = (a | n) (or Legendre if b is prime) */
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int mp_jacobi(mp_int *a, mp_int *n, int *c);
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/* returns 1 if a is a valid DR modulus */
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int mp_dr_is_modulus(mp_int *a);
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/* returns true if a can be reduced with mp_reduce_2k */
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int mp_reduce_is_2k(mp_int *a);
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/* d = a**b (mod c) */
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int mp_exptmod(const mp_int *a, const mp_int *b, mp_int *c, mp_int *d);
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/* ---> Primes <--- */
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/* number of primes */
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#define PRIME_SIZE 256
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/* performs one Fermat test of "a" using base "b".
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* Sets result to 0 if composite or 1 if probable prime
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*/
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int mp_prime_fermat(mp_int *a, mp_int *b, int *result);
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/* This gives [for a given bit size] the number of trials required
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* such that Miller-Rabin gives a prob of failure lower than 2^-96
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*/
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int mp_prime_rabin_miller_trials(int size);
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/* finds the next prime after the number "a" using "t" trials
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* of Miller-Rabin.
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*
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* bbs_style = 1 means the prime must be congruent to 3 mod 4
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*/
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int mp_prime_next_prime(mp_int *a, int t, int bbs_style);
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/* makes a truly random prime of a given size (bytes),
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* call with bbs = 1 if you want it to be congruent to 3 mod 4
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*
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* You have to supply a callback which fills in a buffer with random bytes. "dat" is a parameter you can
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* have passed to the callback (e.g. a state or something). This function doesn't use "dat" itself
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* so it can be NULL
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*
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* The prime generated will be larger than 2^(8*size).
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*/
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#define mp_prime_random(a, t, size, bbs, cb, dat) mp_prime_random_ex(a, t, ((size) * 8) + 1, (bbs==1)?LTM_PRIME_BBS:0, cb, dat)
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/* makes a truly random prime of a given size (bits),
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*
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* Flags are as follows:
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*
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* LTM_PRIME_BBS - make prime congruent to 3 mod 4
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* LTM_PRIME_SAFE - make sure (p-1)/2 is prime as well (implies LTM_PRIME_BBS)
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* LTM_PRIME_2MSB_OFF - make the 2nd highest bit zero
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* LTM_PRIME_2MSB_ON - make the 2nd highest bit one
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*
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* You have to supply a callback which fills in a buffer with random bytes. "dat" is a parameter you can
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* have passed to the callback (e.g. a state or something). This function doesn't use "dat" itself
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* so it can be NULL
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*
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*/
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int mp_prime_random_ex(mp_int *a, int t, int size, int flags, ltm_prime_callback cb, void *dat);
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/* ---> radix conversion <--- */
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int mp_count_bits(const mp_int *a);
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int mp_unsigned_bin_size(const mp_int *a);
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int mp_read_unsigned_bin(mp_int *a, const unsigned char *b, int c);
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int mp_to_unsigned_bin(const mp_int *a, unsigned char *b);
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int mp_read_signed_bin(mp_int *a, unsigned char *b, int c);
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int mp_to_signed_bin(mp_int *a, unsigned char *b);
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int mp_read_radix(mp_int *a, char *str, int radix);
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int mp_toradix(mp_int *a, char *str, int radix);
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int mp_toradix_n(mp_int * a, char *str, int radix, int maxlen);
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int mp_radix_size(mp_int *a, int radix, int *size);
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int mp_fread(mp_int *a, int radix, FILE *stream);
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int mp_fwrite(mp_int *a, int radix, FILE *stream);
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#define mp_read_raw(mp, str, len) mp_read_signed_bin((mp), (str), (len))
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#define mp_raw_size(mp) mp_signed_bin_size(mp)
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#define mp_toraw(mp, str) mp_to_signed_bin((mp), (str))
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#define mp_read_mag(mp, str, len) mp_read_unsigned_bin((mp), (str), (len))
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#define mp_mag_size(mp) mp_unsigned_bin_size(mp)
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#define mp_tomag(mp, str) mp_to_unsigned_bin((mp), (str))
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#define mp_tobinary(M, S) mp_toradix((M), (S), 2)
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#define mp_tooctal(M, S) mp_toradix((M), (S), 8)
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#define mp_todecimal(M, S) mp_toradix((M), (S), 10)
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#define mp_tohex(M, S) mp_toradix((M), (S), 16)
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extern const char *mp_s_rmap;
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#define PK_PRIVATE 0 /* PK private keys */
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#define PK_PUBLIC 1 /* PK public keys */
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/* Min and Max RSA key sizes (in bits) */
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#define MIN_RSA_SIZE 384
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#define MAX_RSA_SIZE 16384
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typedef struct Rsa_key {
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int type;
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mp_int e, d, N, p, q, qP, dP, dQ;
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} rsa_key;
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int rsa_make_key(int size, long e, rsa_key *key);
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int rsa_exptmod(const unsigned char *in, unsigned long inlen,
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unsigned char *out, unsigned long *outlen, int which,
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rsa_key *key);
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void rsa_free(rsa_key *key);
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#endif /* __WINE_TOMCRYPT_H_ */
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