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Code Activity

* blowfish.c (burn_stack), cast5.c (burn_stack), des.c (burn_stack), md5.c

Browse Source 
(burn_stack), random.c (burn_stack, read_pool, fast_random_poll),
rijndael.c (burn_stack), rmd160.c (burn_stack), rndegd.c
(rndegd_gather_random), rndlinux.c (rndlinux_gather_random), rndriscos.c
(rndriscos_gather_random), sha1.c (burn_stack), tiger.c (burn_stack),
twofish.c (burn_stack): Replace various calls to memset() with the more
secure wipememory().
This commit is contained in:
David Shaw 2002-11-06 15:28:12 +00:00
parent 666dcb370b
commit 90279250e8
14 changed files with 29 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
cipher/ChangeLog
View File

@ -1,3 +1,14 @@
2002-11-06 David Shaw <dshaw@jabberwocky.com>
* blowfish.c (burn_stack), cast5.c (burn_stack), des.c
(burn_stack), md5.c (burn_stack), random.c (burn_stack, read_pool,
fast_random_poll), rijndael.c (burn_stack), rmd160.c (burn_stack),
rndegd.c (rndegd_gather_random), rndlinux.c
(rndlinux_gather_random), rndriscos.c (rndriscos_gather_random),
sha1.c (burn_stack), tiger.c (burn_stack), twofish.c (burn_stack):
Replace various calls to memset() with the more secure
wipememory().
2002-10-21 Werner Koch <wk@gnupg.org> 2002-10-21 Werner Koch <wk@gnupg.org>
* rndw32.c [__CYGWIN32__]: Don't include winioctl.h - it is not * rndw32.c [__CYGWIN32__]: Don't include winioctl.h - it is not

3
cipher/blowfish.c
View File

@ -35,6 +35,7 @@
#include <string.h> #include <string.h>
#include <assert.h> #include <assert.h>
#include "types.h" #include "types.h"
#include "util.h"
#include "errors.h" #include "errors.h"
#include "algorithms.h" #include "algorithms.h"
@ -282,7 +283,7 @@ burn_stack (int bytes)
{ {
char buf[64]; char buf[64];
memset (buf, 0, sizeof buf); wipememory(buf,sizeof buf);
bytes -= sizeof buf; bytes -= sizeof buf;
if (bytes > 0) if (bytes > 0)
burn_stack (bytes); burn_stack (bytes);

3
cipher/cast5.c
View File

@ -40,6 +40,7 @@
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include "types.h" #include "types.h"
#include "util.h"
#include "errors.h" #include "errors.h"
#include "algorithms.h" #include "algorithms.h"
@ -359,7 +360,7 @@ burn_stack (int bytes)
{ {
char buf[64]; char buf[64];
memset (buf, 0, sizeof buf); wipememory(buf,sizeof buf);
bytes -= sizeof buf; bytes -= sizeof buf;
if (bytes > 0) if (bytes > 0)
burn_stack (bytes); burn_stack (bytes);

3
cipher/des.c
View File

@ -115,6 +115,7 @@
#include <stdio.h> #include <stdio.h>
#include <string.h> /* memcpy, memcmp */ #include <string.h> /* memcpy, memcmp */
#include "types.h" /* for byte and u32 typedefs */ #include "types.h" /* for byte and u32 typedefs */
#include "util.h"
#include "errors.h" #include "errors.h"
#include "algorithms.h" #include "algorithms.h"
@ -453,7 +454,7 @@ burn_stack (int bytes)
{ {
char buf[64]; char buf[64];
memset (buf, 0, sizeof buf); wipememory(buf,sizeof buf);
bytes -= sizeof buf; bytes -= sizeof buf;
if (bytes > 0) if (bytes > 0)
burn_stack (bytes); burn_stack (bytes);

2
cipher/md5.c
View File

@ -78,7 +78,7 @@ burn_stack (int bytes)
{ {
char buf[128]; char buf[128];
memset (buf, 0, sizeof buf); wipememory(buf,sizeof buf);
bytes -= sizeof buf; bytes -= sizeof buf;
if (bytes > 0) if (bytes > 0)
burn_stack (bytes); burn_stack (bytes);

6
cipher/random.c
View File

@ -205,7 +205,7 @@ burn_stack (int bytes)
{ {
char buf[128]; char buf[128];
memset (buf, 0, sizeof buf); wipememory(buf,sizeof buf);
bytes -= sizeof buf; bytes -= sizeof buf;
if (bytes > 0) if (bytes > 0)
burn_stack (bytes); burn_stack (bytes);
@ -564,7 +564,7 @@ read_pool( byte *buffer, size_t length, int level )
if( pool_balance < 0 ) if( pool_balance < 0 )
pool_balance = 0; pool_balance = 0;
/* and clear the keypool */ /* and clear the keypool */
memset( keypool, 0, POOLSIZE ); wipememory(keypool, POOLSIZE);
} }
} }
@ -673,7 +673,7 @@ fast_random_poll()
getrusage( RUSAGE_SELF, &buf ); getrusage( RUSAGE_SELF, &buf );
add_randomness( &buf, sizeof buf, 1 ); add_randomness( &buf, sizeof buf, 1 );
memset( &buf, 0, sizeof buf ); wipememory( &buf, sizeof buf );
} }
#endif #endif
#endif #endif

2
cipher/rijndael.c
View File

@ -1713,7 +1713,7 @@ burn_stack (int bytes)
{ {
char buf[64]; char buf[64];
memset (buf, 0, sizeof buf); wipememory(buf,sizeof buf);
bytes -= sizeof buf; bytes -= sizeof buf;
if (bytes > 0) if (bytes > 0)
burn_stack (bytes); burn_stack (bytes);

2
cipher/rmd160.c
View File

@ -146,7 +146,7 @@ burn_stack (int bytes)
{ {
char buf[150]; char buf[150];
memset (buf, 0, sizeof buf); wipememory(buf,sizeof buf);
bytes -= sizeof buf; bytes -= sizeof buf;
if (bytes > 0) if (bytes > 0)
burn_stack (bytes); burn_stack (bytes);

2
cipher/rndegd.c
View File

@ -221,7 +221,7 @@ rndegd_gather_random( void (*add)(const void*, size_t, int), int requester,
(*add)( buffer, n, requester ); (*add)( buffer, n, requester );
length -= n; length -= n;
} }
memset(buffer, 0, sizeof(buffer) ); wipememory(buffer, sizeof(buffer) );
return 0; /* success */ return 0; /* success */
} }

2
cipher/rndlinux.c
View File

@ -156,7 +156,7 @@ _("\n"
(*add)( buffer, n, requester ); (*add)( buffer, n, requester );
length -= n; length -= n;
} }
memset(buffer, 0, sizeof(buffer) ); wipememory(buffer, sizeof(buffer) );
return 0; /* success */ return 0; /* success */
} }

2
cipher/rndriscos.c
View File

@ -87,7 +87,7 @@ rndriscos_gather_random(void (*add)(const void*, size_t, int), int requester,
(*add)(buffer, n, requester); (*add)(buffer, n, requester);
length -= n; length -= n;
} }
memset(buffer, 0, sizeof(buffer)); wipememory(buffer, sizeof(buffer));
return 0; /* success */ return 0; /* success */
} }

2
cipher/sha1.c
View File

@ -54,7 +54,7 @@ burn_stack (int bytes)
{ {
char buf[128]; char buf[128];
memset (buf, 0, sizeof buf); wipememory(buf,sizeof buf);
bytes -= sizeof buf; bytes -= sizeof buf;
if (bytes > 0) if (bytes > 0)
burn_stack (bytes); burn_stack (bytes);

2
cipher/tiger.c
View File

@ -635,7 +635,7 @@ burn_stack (int bytes)
{ {
char buf[256]; char buf[256];
memset (buf, 0, sizeof buf); wipememory(buf,sizeof buf);
bytes -= sizeof buf; bytes -= sizeof buf;
if (bytes > 0) if (bytes > 0)
burn_stack (bytes); burn_stack (bytes);

2
cipher/twofish.c
View File

@ -550,7 +550,7 @@ burn_stack (int bytes)
{ {
char buf[64]; char buf[64];
memset (buf, 0, sizeof buf); wipememory(buf,sizeof buf);
bytes -= sizeof buf; bytes -= sizeof buf;
if (bytes > 0) if (bytes > 0)
burn_stack (bytes); burn_stack (bytes);