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Add the modes OFB128, CFB128 and CTR128 to AES.

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Submitted by Stephen Sprunk <stephen@sprunk.org>
This commit is contained in:
Richard Levitte 2002-02-16 12:21:43 +00:00
parent 330e5c5460
commit 58133d22a8
7 changed files with 41 additions and 26 deletions
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4
crypto/aes/Makefile.ssl
View file

@ -26,8 +26,8 @@ TEST=
APPS=
LIB=$(TOP)/libcrypto.a
LIBSRC=aes_core.c aes_misc.c aes_ecb.c aes_cbc.c
LIBOBJ=aes_core.o aes_misc.o aes_ecb.o aes_cbc.o
LIBSRC=aes_core.c aes_misc.c aes_ecb.c aes_cbc.c aes_cfb.c aes_ofb.c aes_ctr.c
LIBOBJ=aes_core.o aes_misc.o aes_ecb.o aes_cbc.o aes_cfb.o aes_ofb.o aes_ctr.o
SRC= $(LIBSRC)

36
crypto/aes/aes.h
View file

@ -1,6 +1,6 @@
/* crypto/aes/aes.h -*- mode:C; c-file-style: "eay" -*- */
/* ====================================================================
* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
* Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -58,8 +58,10 @@
static const int AES_DECRYPT = 0;
static const int AES_ENCRYPT = 1;
#define AES_MAXNR 14 /* array size can't be a const in C */
static const int AES_BLOCK_SIZE = 16; /* bytes */
/* Because array size can't be a const in C, the following two are macros.
Both sizes are in bytes. */
#define AES_MAXNR 14
#define AES_BLOCK_SIZE 16
#ifdef __cplusplus
extern "C" {
@ -74,17 +76,31 @@ typedef struct aes_key_st AES_KEY;
const char *AES_options(void);
int AES_set_encrypt_key(const unsigned char *userKey, const int bits, AES_KEY *key);
int AES_set_decrypt_key(const unsigned char *userKey, const int bits, AES_KEY *key);
int AES_set_encrypt_key(const unsigned char *userKey, const int bits,
AES_KEY *key);
int AES_set_decrypt_key(const unsigned char *userKey, const int bits,
AES_KEY *key);
void AES_encrypt(const unsigned char *in, unsigned char *out, const AES_KEY *key);
void AES_decrypt(const unsigned char *in, unsigned char *out, const AES_KEY *key);
void AES_encrypt(const unsigned char *in, unsigned char *out,
const AES_KEY *key);
void AES_decrypt(const unsigned char *in, unsigned char *out,
const AES_KEY *key);
void AES_ecb_encrypt(const unsigned char *in, unsigned char *out,
const AES_KEY *key, const int enc);
const AES_KEY *key, const int enc);
void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
const unsigned long length, const AES_KEY *key,
unsigned char *ivec, const int enc);
const unsigned long length, const AES_KEY *key,
unsigned char *ivec, const int enc);
void AES_cfb128_encrypt(const unsigned char *in, unsigned char *out,
const unsigned long length, const AES_KEY *key,
unsigned char *ivec, int *num, const int enc);
void AES_ofb128_encrypt(const unsigned char *in, unsigned char *out,
const unsigned long length, const AES_KEY *key,
unsigned char *ivec, int *num);
void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out,
const unsigned long length, const AES_KEY *key,
unsigned char *counter, unsigned int *num);
#ifdef __cplusplus
}

2
crypto/aes/aes_cbc.c
View file

@ -1,6 +1,6 @@
/* crypto/aes/aes_cbc.c -*- mode:C; c-file-style: "eay" -*- */
/* ====================================================================
* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
* Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions

10
crypto/aes/aes_core.c
View file

@ -715,16 +715,6 @@ static const u32 rcon[] = {
0x1B000000, 0x36000000, /* for 128-bit blocks, Rijndael never uses more than 10 rcon values */
};
#define SWAP(x) (_lrotl(x, 8) & 0x00ff00ff | _lrotr(x, 8) & 0xff00ff00)
#ifdef _MSC_VER
#define GETU32(p) SWAP(*((u32 *)(p)))
#define PUTU32(ct, st) { *((u32 *)(ct)) = SWAP((st)); }
#else
#define GETU32(pt) (((u32)(pt)[0] << 24) ^ ((u32)(pt)[1] << 16) ^ ((u32)(pt)[2] << 8) ^ ((u32)(pt)[3]))
#define PUTU32(ct, st) { (ct)[0] = (u8)((st) >> 24); (ct)[1] = (u8)((st) >> 16); (ct)[2] = (u8)((st) >> 8); (ct)[3] = (u8)(st); }
#endif
/**
* Expand the cipher key into the encryption key schedule.
*/

2
crypto/aes/aes_ecb.c
View file

@ -1,6 +1,6 @@
/* crypto/aes/aes_ecb.c -*- mode:C; c-file-style: "eay" -*- */
/* ====================================================================
* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
* Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions

11
crypto/aes/aes_locl.h
View file

@ -1,6 +1,6 @@
/* crypto/aes/aes.h -*- mode:C; c-file-style: "eay" -*- */
/* ====================================================================
* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
* Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -65,6 +65,15 @@
#include <string.h>
#endif
#ifdef _MSC_VER
# define SWAP(x) (_lrotl(x, 8) & 0x00ff00ff | _lrotr(x, 8) & 0xff00ff00)
# define GETU32(p) SWAP(*((u32 *)(p)))
# define PUTU32(ct, st) { *((u32 *)(ct)) = SWAP((st)); }
#else
# define GETU32(pt) (((u32)(pt)[0] << 24) ^ ((u32)(pt)[1] << 16) ^ ((u32)(pt)[2] << 8) ^ ((u32)(pt)[3]))
# define PUTU32(ct, st) { (ct)[0] = (u8)((st) >> 24); (ct)[1] = (u8)((st) >> 16); (ct)[2] = (u8)((st) >> 8); (ct)[3] = (u8)(st); }
#endif
typedef unsigned long u32;
typedef unsigned short u16;
typedef unsigned char u8;

2
crypto/aes/aes_misc.c
View file

@ -1,6 +1,6 @@
/* crypto/aes/aes_misc.c -*- mode:C; c-file-style: "eay" -*- */
/* ====================================================================
* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
* Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions