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* cipher.c: Include the DUMMY cipher only when the new ALLOW_DUMMY

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is defined. It should only be defined for hard core debugging.
This commit is contained in:
Werner Koch 2002-08-12 17:46:46 +00:00
parent 9c86904866
commit 29e3108bb9
2 changed files with 17 additions and 5 deletions
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5
cipher/ChangeLog
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@ -1,3 +1,8 @@
2002-08-12 Werner Koch <wk@gnupg.org>
* cipher.c: Include the DUMMY cipher only when the new ALLOW_DUMMY
is defined. It should only be defined for hard core debugging.
2002-08-08 David Shaw <dshaw@jabberwocky.com> 2002-08-08 David Shaw <dshaw@jabberwocky.com>
* Makefile.am, md.c (load_digest_module): Allow switching TIGER on * Makefile.am, md.c (load_digest_module): Allow switching TIGER on

17
cipher/cipher.c
View File

@ -29,6 +29,10 @@
#include "cipher.h" #include "cipher.h"
#include "algorithms.h" #include "algorithms.h"
/* We have support for a DUMMY encryption cipher which comes handy to
debug MDCs and similar things. Because this is a bit dangerous it
is not enabled. */
/*#define ALLOW_DUMMY 1 */
#define MAX_BLOCKSIZE 16 #define MAX_BLOCKSIZE 16
#define TABLE_SIZE 14 #define TABLE_SIZE 14
@ -62,13 +66,16 @@ struct cipher_handle_s {
}; };
#ifdef IS_DEVELOPMENT_VERSION #ifdef ALLOW_DUMMY
static int static int
dummy_setkey( void *c, byte *key, unsigned keylen ) { return 0; } dummy_setkey( void *c, byte *key, unsigned keylen ) { return 0; }
static void static void
dummy_encrypt_block( void *c, byte *outbuf, byte *inbuf ) { BUG(); } dummy_encrypt_block( void *c, byte *outbuf, byte *inbuf ) { BUG(); }
static void static void
dummy_decrypt_block( void *c, byte *outbuf, byte *inbuf ) { BUG(); } dummy_decrypt_block( void *c, byte *outbuf, byte *inbuf ) { BUG(); }
#ifdef __GNUC__
# warning DUMMY cipher module is enabled
#endif
#endif #endif
@ -170,7 +177,7 @@ setup_cipher_table(void)
if (cipher_table[i].name) if (cipher_table[i].name)
i++; /* Note that IDEA is usually no available. */ i++; /* Note that IDEA is usually no available. */
#ifdef IS_DEVELOPMENT_VERSION #ifdef ALLOW_DUMMY
cipher_table[i].algo = CIPHER_ALGO_DUMMY; cipher_table[i].algo = CIPHER_ALGO_DUMMY;
cipher_table[i].name = "DUMMY"; cipher_table[i].name = "DUMMY";
cipher_table[i].blocksize = 8; cipher_table[i].blocksize = 8;
@ -379,7 +386,7 @@ cipher_open( int algo, int mode, int secure )
else else
hd->mode = mode; hd->mode = mode;
#ifdef IS_DEVELOPMENT_VERSION #ifdef ALLOW_DUMMY
if( algo == CIPHER_ALGO_DUMMY ) if( algo == CIPHER_ALGO_DUMMY )
hd->mode = CIPHER_MODE_DUMMY; hd->mode = CIPHER_MODE_DUMMY;
#endif #endif
@ -611,7 +618,7 @@ cipher_encrypt( CIPHER_HANDLE c, byte *outbuf, byte *inbuf, unsigned nbytes )
case CIPHER_MODE_PHILS_CFB: case CIPHER_MODE_PHILS_CFB:
do_cfb_encrypt(c, outbuf, inbuf, nbytes ); do_cfb_encrypt(c, outbuf, inbuf, nbytes );
break; break;
#ifdef IS_DEVELOPMENT_VERSION #ifdef ALLOW_DUMMY
case CIPHER_MODE_DUMMY: case CIPHER_MODE_DUMMY:
if( inbuf != outbuf ) if( inbuf != outbuf )
memmove( outbuf, inbuf, nbytes ); memmove( outbuf, inbuf, nbytes );
@ -643,7 +650,7 @@ cipher_decrypt( CIPHER_HANDLE c, byte *outbuf, byte *inbuf, unsigned nbytes )
case CIPHER_MODE_PHILS_CFB: case CIPHER_MODE_PHILS_CFB:
do_cfb_decrypt(c, outbuf, inbuf, nbytes ); do_cfb_decrypt(c, outbuf, inbuf, nbytes );
break; break;
#ifdef IS_DEVELOPMENT_VERSION #ifdef ALLOW_DUMMY
case CIPHER_MODE_DUMMY: case CIPHER_MODE_DUMMY:
if( inbuf != outbuf ) if( inbuf != outbuf )
memmove( outbuf, inbuf, nbytes ); memmove( outbuf, inbuf, nbytes );