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* algorithms.h, cast5.c, cipher.c, idea-stub.c, twofish.c, blowfish.c,

Browse source 
des.c, rijndael.c: Consistently use const for input buffers.
This commit is contained in:
David Shaw 2004-10-12 17:35:50 +00:00
parent ca6dcb7258
commit b15cc684b8
9 changed files with 112 additions and 135 deletions
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38
cipher/blowfish.c
View file

@ -54,10 +54,7 @@ typedef struct {
u32 p[BLOWFISH_ROUNDS+2];
} BLOWFISH_context;
static int bf_setkey( BLOWFISH_context *c, byte *key, unsigned keylen );
static void encrypt_block( BLOWFISH_context *bc, byte *outbuf, byte *inbuf );
static void decrypt_block( BLOWFISH_context *bc, byte *outbuf, byte *inbuf );
static int bf_setkey( void *c, const byte *key, unsigned keylen );
/* precomputed S boxes */
static const u32 ks0[256] = {
@ -424,7 +421,7 @@ decrypt( BLOWFISH_context *bc, u32 *ret_xl, u32 *ret_xr )
#undef R
static void
do_encrypt_block( BLOWFISH_context *bc, byte *outbuf, byte *inbuf )
do_encrypt_block( BLOWFISH_context *bc, byte *outbuf, const byte *inbuf )
{
u32 d1, d2;
@ -442,14 +439,14 @@ do_encrypt_block( BLOWFISH_context *bc, byte *outbuf, byte *inbuf )
}
static void
encrypt_block( BLOWFISH_context *bc, byte *outbuf, byte *inbuf )
encrypt_block( void *bc, byte *outbuf, const byte *inbuf )
{
do_encrypt_block (bc, outbuf, inbuf);
burn_stack (64);
}
static void
do_decrypt_block( BLOWFISH_context *bc, byte *outbuf, byte *inbuf )
do_decrypt_block( BLOWFISH_context *bc, byte *outbuf, const byte *inbuf )
{
u32 d1, d2;
@ -467,7 +464,7 @@ do_decrypt_block( BLOWFISH_context *bc, byte *outbuf, byte *inbuf )
}
static void
decrypt_block( BLOWFISH_context *bc, byte *outbuf, byte *inbuf )
decrypt_block( void *bc, byte *outbuf, const byte *inbuf )
{
do_decrypt_block (bc, outbuf, inbuf);
burn_stack (64);
@ -504,7 +501,7 @@ selftest(void)
static int
do_bf_setkey( BLOWFISH_context *c, byte *key, unsigned keylen )
do_bf_setkey( BLOWFISH_context *c, const byte *key, unsigned keylen )
{
int i, j;
u32 data, datal, datar;
@ -587,7 +584,7 @@ do_bf_setkey( BLOWFISH_context *c, byte *key, unsigned keylen )
}
static int
bf_setkey( BLOWFISH_context *c, byte *key, unsigned keylen )
bf_setkey( void *c, const byte *key, unsigned keylen )
{
int rc = do_bf_setkey (c, key, keylen);
burn_stack (64);
@ -601,22 +598,19 @@ bf_setkey( BLOWFISH_context *c, byte *key, unsigned keylen )
* the ALGO is invalid.
*/
const char *
blowfish_get_info( int algo, size_t *keylen,
size_t *blocksize, size_t *contextsize,
int (**r_setkey)( void *c, byte *key, unsigned keylen ),
void (**r_encrypt)( void *c, byte *outbuf, byte *inbuf ),
void (**r_decrypt)( void *c, byte *outbuf, byte *inbuf )
)
blowfish_get_info(int algo, size_t *keylen,
size_t *blocksize, size_t *contextsize,
int (**r_setkey)(void *c, const byte *key, unsigned keylen),
void (**r_encrypt)(void *c, byte *outbuf, const byte *inbuf),
void (**r_decrypt)( void *c, byte *outbuf, const byte *inbuf)
)
{
*keylen = 128;
*blocksize = BLOWFISH_BLOCKSIZE;
*contextsize = sizeof(BLOWFISH_context);
*(int (**)(BLOWFISH_context*, byte*, unsigned))r_setkey
= bf_setkey;
*(void (**)(BLOWFISH_context*, byte*, byte*))r_encrypt
= encrypt_block;
*(void (**)(BLOWFISH_context*, byte*, byte*))r_decrypt
= decrypt_block;
*r_setkey = bf_setkey;
*r_encrypt = encrypt_block;
*r_decrypt = decrypt_block;
if( algo == CIPHER_ALGO_BLOWFISH )
return "BLOWFISH";