security-and-privacy/gnupg
security-and-privacy
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gnupg
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patchlevel 2

This commit is contained in:
Werner Koch 1998-01-07 20:47:46 +00:00
parent cf783fe54c
commit 762d3d7197
24 changed files with 475 additions and 81 deletions
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3
TODO
View File

@ -35,3 +35,6 @@
* armor has now some problems.
* add g10 stuff to Mutt's pgpinvoke.c

2
VERSION
View File

@ -1 +1 @@
0.1.1
0.1.2

1
cipher/Makefile.am
View File

@ -23,6 +23,7 @@ cipher_SOURCES = blowfish.c \
dsa.h \
dsa.c \
md.c \
misc.c \
smallprime.c
cipher_LIBADD = @CIPHER_EXTRA_OBJS@

5
cipher/Makefile.in
View File

@ -60,6 +60,7 @@ cipher_SOURCES = blowfish.c \
dsa.h \
dsa.c \
md.c \
misc.c \
smallprime.c
cipher_LIBADD = @CIPHER_EXTRA_OBJS@
@ -82,7 +83,7 @@ LIBS = @LIBS@
COMPILE = $(CC) -c $(DEFS) $(INCLUDES) $(CPPFLAGS) $(CFLAGS)
LINK = $(CC) $(LDFLAGS) -o $@
cipher_OBJECTS = blowfish.o elgamal.o gost.o md5.o primegen.o random.o \
rmd160.o sha1.o dsa.o md.o smallprime.o
rmd160.o sha1.o dsa.o md.o misc.o smallprime.o
EXTRA_cipher_SOURCES =
LIBFILES = libcipher.a
AR = ar
@ -101,7 +102,7 @@ DEP_DISTFILES = $(DIST_COMMON) $(SOURCES) $(BUILT_SOURCES) $(HEADERS) \
TAR = tar
DEP_FILES = $(srcdir)/.deps/blowfish.P $(srcdir)/.deps/dsa.P \
$(srcdir)/.deps/elgamal.P $(srcdir)/.deps/gost.P $(srcdir)/.deps/md.P \
$(srcdir)/.deps/md5.P $(srcdir)/.deps/primegen.P \
$(srcdir)/.deps/md5.P $(srcdir)/.deps/misc.P $(srcdir)/.deps/primegen.P \
$(srcdir)/.deps/random.P $(srcdir)/.deps/rmd160.P \
$(srcdir)/.deps/sha1.P $(srcdir)/.deps/smallprime.P
SOURCES = $(cipher_SOURCES)

10
cipher/md.c
View File

@ -26,17 +26,11 @@
#include "cipher.h"
#include "errors.h"
int
md_okay( int algo )
{
switch( algo ) {
case DIGEST_ALGO_MD5:
case DIGEST_ALGO_RMD160:
case DIGEST_ALGO_SHA1:
return 0;
default:
return G10ERR_DIGEST_ALGO;
}
return check_digest_algo( algo );
}

152
cipher/misc.c Normal file
View File

@ -0,0 +1,152 @@
/* misc.c - utility functions
* Copyright (c) 1997 by Werner Koch (dd9jn)
*
* This file is part of G10.
*
* G10 is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* G10 is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "util.h"
#include "cipher.h"
static struct { const char *name; int algo;} cipher_names[] = {
{ "IDEA", CIPHER_ALGO_IDEA },
{ "3DES", CIPHER_ALGO_3DES },
{ "CAST", CIPHER_ALGO_CAST },
{ "BLOWFISH128", CIPHER_ALGO_BLOWFISH128 },
{ "ROT_N", CIPHER_ALGO_ROT_N },
{ "SAFER_SK128", CIPHER_ALGO_SAFER_SK128 },
{ "DES_SK", CIPHER_ALGO_DES_SK },
{ "BLOWFISH", CIPHER_ALGO_BLOWFISH },
{ "GOST", CIPHER_ALGO_GOST },
{NULL} };
static struct { const char *name; int algo;} pubkey_names[] = {
{ "RSA", PUBKEY_ALGO_RSA },
{ "RSA-E", PUBKEY_ALGO_RSA_E },
{ "RSA-S", PUBKEY_ALGO_RSA_S },
{ "ELGAMAL", PUBKEY_ALGO_ELGAMAL },
{ "ELG", PUBKEY_ALGO_ELGAMAL },
{ "DSA", PUBKEY_ALGO_DSA },
{NULL} };
static struct { const char *name; int algo;} digest_names[] = {
{ "MD5", DIGEST_ALGO_MD5 },
{ "SHA1", DIGEST_ALGO_SHA1 },
{ "SHA-1", DIGEST_ALGO_SHA1 },
{ "RMD160", DIGEST_ALGO_RMD160 },
{ "RMD-160", DIGEST_ALGO_RMD160 },
{ "RIPE-MD-160", DIGEST_ALGO_RMD160 },
{NULL} };
/****************
* Map a string to the cipher algo
*/
int
string_to_cipher_algo( const char *string )
{
int i;
const char *s;
for(i=0; s=cipher_names[i].name; i++ )
if( !stricmp( s, string ) )
return cipher_names[i].algo;
return 0;
}
/****************
* Map a string to the pubkey algo
*/
int
string_to_pubkey_algo( const char *string )
{
int i;
const char *s;
for(i=0; s=pubkey_names[i].name; i++ )
if( !stricmp( s, string ) )
return pubkey_names[i].algo;
return 0;
}
/****************
* Map a string to the digest algo
*/
int
string_to_digest_algo( const char *string )
{
int i;
const char *s;
for(i=0; s=digest_names[i].name; i++ )
if( !stricmp( s, string ) )
return digest_names[i].algo;
return 0;
}
/****************
* Return 0 if the cipher algo is available
*/
int
check_cipher_algo( int algo )
{
switch( algo ) {
case CIPHER_ALGO_BLOWFISH128:
case CIPHER_ALGO_BLOWFISH:
return 0;
default:
return G10ERR_CIPHER_ALGO;
}
}
int
check_pubkey_algo( int algo )
{
switch( algo ) {
case PUBKEY_ALGO_ELGAMAL:
#ifdef HAVE_RSA_CIPHER
case PUBKEY_ALGO_RSA:
#endif
return 0;
default:
return G10ERR_PUBKEY_ALGO;
}
}
int
check_digest_algo( int algo )
{
switch( algo ) {
case DIGEST_ALGO_MD5:
case DIGEST_ALGO_RMD160:
case DIGEST_ALGO_SHA1:
return 0;
default:
return G10ERR_DIGEST_ALGO;
}
}

7
config.h.in
View File

@ -78,11 +78,8 @@
/* Define if you have the strerror function. */
#undef HAVE_STRERROR
/* Define if you have the strtol function. */
#undef HAVE_STRTOL
/* Define if you have the strtoul function. */
#undef HAVE_STRTOUL
/* Define if you have the strlwr function. */
#undef HAVE_STRLWR
/* Define if you have the tcgetattr function. */
#undef HAVE_TCGETATTR

2
configure.in
View File

@ -155,7 +155,7 @@ AC_CHECK_SIZEOF(unsigned long, 4)
dnl Checks for library functions.
AC_FUNC_VPRINTF
AC_CHECK_FUNCS(strerror strtol strtoul stpcpy tcgetattr)
AC_CHECK_FUNCS(strerror stpcpy strlwr tcgetattr)
dnl check wether we have a random device
AC_CACHE_CHECK(for random device, ac_cv_have_dev_random,

3
g10/OPTIONS
View File

@ -165,6 +165,9 @@ no-default-keyring
no-greeting
# suppress the initial copyright etc. messages but do not enter batch mode.
no-verbose
# set verbose level to 0
options filename
# Ignored in option files.

9
g10/cipher.c
View File

@ -67,7 +67,8 @@ cipher_filter( void *opaque, int control,
randomize_buffer( temp, 8, 1 );
temp[8] = temp[6];
temp[9] = temp[7];
if( cfx->dek->algo == CIPHER_ALGO_BLOWFISH ) {
if( cfx->dek->algo == CIPHER_ALGO_BLOWFISH
|| cfx->dek->algo == CIPHER_ALGO_BLOWFISH128 ) {
cfx->bf_ctx = m_alloc_secure( sizeof *cfx->bf_ctx );
blowfish_setkey( cfx->bf_ctx, cfx->dek->key, cfx->dek->keylen );
blowfish_setiv( cfx->bf_ctx, NULL );
@ -80,13 +81,15 @@ cipher_filter( void *opaque, int control,
cfx->header=1;
}
if( cfx->dek->algo == CIPHER_ALGO_BLOWFISH )
if( cfx->dek->algo == CIPHER_ALGO_BLOWFISH
|| cfx->dek->algo == CIPHER_ALGO_BLOWFISH128 )
blowfish_encode_cfb( cfx->bf_ctx, buf, buf, size);
if( iobuf_write( a, buf, size ) )
rc = G10ERR_WRITE_FILE;
}
else if( control == IOBUFCTRL_FREE ) {
if( cfx->dek->algo == CIPHER_ALGO_BLOWFISH )
if( cfx->dek->algo == CIPHER_ALGO_BLOWFISH
|| cfx->dek->algo == CIPHER_ALGO_BLOWFISH128 )
m_free(cfx->bf_ctx);
}
else if( control == IOBUFCTRL_DESC ) {

6
g10/encode.c
View File

@ -88,7 +88,7 @@ encode_simple( const char *filename, int mode )
cfx.dek = NULL;
if( mode ) {
cfx.dek = m_alloc_secure( sizeof *cfx.dek );
cfx.dek->algo = DEFAULT_CIPHER_ALGO;
cfx.dek->algo = opt.def_cipher_algo;
if( (rc = make_dek_from_passphrase( cfx.dek , 2 )) ) {
m_free(cfx.dek);
iobuf_close(inp);
@ -199,7 +199,7 @@ encode_crypt( const char *filename, STRLIST remusr )
/* create a session key */
cfx.dek = m_alloc_secure( sizeof *cfx.dek );
cfx.dek->algo = DEFAULT_CIPHER_ALGO;
cfx.dek->algo = opt.def_cipher_algo;
make_session_key( cfx.dek );
if( DBG_CIPHER )
log_hexdump("DEK is: ", cfx.dek->key, cfx.dek->keylen );
@ -269,7 +269,7 @@ encrypt_filter( void *opaque, int control,
else if( control == IOBUFCTRL_FLUSH ) { /* encrypt */
if( !efx->header_okay ) {
efx->cfx.dek = m_alloc_secure( sizeof *efx->cfx.dek );
efx->cfx.dek->algo = DEFAULT_CIPHER_ALGO;
efx->cfx.dek->algo = opt.def_cipher_algo;
make_session_key( efx->cfx.dek );
if( DBG_CIPHER )
log_hexdump("DEK is: ",

3
g10/encr-data.c
View File

@ -51,7 +51,8 @@ decrypt_data( PKT_encrypted *ed, DEK *dek )
byte temp[16];
if( dek->algo != CIPHER_ALGO_BLOWFISH )
if( dek->algo != CIPHER_ALGO_BLOWFISH
&& dek->algo != CIPHER_ALGO_BLOWFISH128 )
return G10ERR_CIPHER_ALGO;
if( ed->len && ed->len < 10 )
log_bug("Nanu\n"); /* oops: found a bug */

39
g10/g10.c
View File

@ -169,6 +169,10 @@ main( int argc, char **argv )
{ 523, "passphrase-fd",1, "\r" },
{ 524, "edit-sig" ,0, "edit a key signature" },
{ 525, "change-passphrase", 0, "change the passphrase of your secret keyring"},
{ 526, "no-verbose", 0, "\r"},
{ 527, "cipher-algo", 2 , "select default cipher algorithm" },
{ 528, "pubkey-algo", 2 , "select default puplic key algorithm" },
{ 529, "digest-algo", 2 , "select default message digest algorithm" },
{0} };
ARGPARSE_ARGS pargs;
@ -194,6 +198,9 @@ main( int argc, char **argv )
opt.compress = -1; /* defaults to standard compress level */
opt.def_cipher_algo = CIPHER_ALGO_BLOWFISH;
opt.def_pubkey_algo = PUBKEY_ALGO_ELGAMAL;
opt.def_digest_algo = DIGEST_ALGO_RMD160;
/* check wether we have a config file on the commandline */
orig_argc = argc;
@ -298,6 +305,19 @@ main( int argc, char **argv )
case 523: set_passphrase_fd( pargs.r.ret_int ); break;
case 524: set_cmd( &cmd, aEditSig); break;
case 525: set_cmd( &cmd, aChangePass); break;
case 526: opt.verbose = 0; opt.list_sigs=0; break;
case 527:
opt.def_cipher_algo = string_to_cipher_algo(pargs.r.ret_str);
break;
case 528:
opt.def_pubkey_algo = string_to_pubkey_algo(pargs.r.ret_str);
break;
case 529:
opt.def_digest_algo = string_to_digest_algo(pargs.r.ret_str);
break;
break;
default : errors++; pargs.err = configfp? 1:2; break;
}
}
@ -308,6 +328,18 @@ main( int argc, char **argv )
goto next_pass;
}
m_free( configname ); configname = NULL;
if( !opt.def_cipher_algo || check_cipher_algo(opt.def_cipher_algo) ) {
log_error("selected cipher algorithm is invalid\n");
errors++;
}
if( !opt.def_pubkey_algo || check_pubkey_algo(opt.def_pubkey_algo) ) {
log_error("selected pubkey algorithm is invalid\n");
errors++;
}
if( !opt.def_digest_algo || check_digest_algo(opt.def_digest_algo) ) {
log_error("selected digest algorithm is invalid\n");
errors++;
}
if( errors )
exit(2);
@ -351,6 +383,13 @@ main( int argc, char **argv )
else {
fname_print = "[stdin]";
fname = NULL;
if( get_passphrase_fd() == 0 ) {
/* reading data and passphrase form stdin:
* we assume the first line is the passphrase, so
* we read it now
*/
/* FIXME: doit */
}
}
switch( cmd ) {

102
g10/keygen.c
View File

@ -305,6 +305,7 @@ generate_keypair()
int rc;
int algo;
const char *algo_name;
char *aname, *acomment, *amail;
#ifndef TEST_ALGO
if( opt.batch || opt.answer_yes || opt.answer_no )
@ -404,27 +405,102 @@ generate_keypair()
uid = m_alloc(strlen(TEST_UID)+1);
strcpy(uid, TEST_UID);
#else
tty_printf( "\nYou need a User-ID to identify your key; please use your name and your\n"
"email address in this suggested format:\n"
" \"Heinrich Heine <heinrichh@uni-duesseldorf.de>\n" );
tty_printf( "\n"
"You need a User-ID to identify your key; the software constructs the user id\n"
"from Real Name, Comment and Email Address in this form:\n"
" \"Heinrich Heine (Der Dichter) <heinrichh@uni-duesseldorf.de>\"\n" );
uid = NULL;
aname=acomment=amail=NULL;
for(;;) {
char *p;
if( !aname ) {
for(;;) {
m_free(aname);
aname = tty_get("Real name: ");
trim_spaces(aname);
tty_kill_prompt();
if( strpbrk( aname, "<([])>" ) )
tty_printf("Invalid character in name\n");
else if( strlen(aname) < 5 )
tty_printf("Name must be at least 5 characters long\n");
else
break;
}
}
if( !amail ) {
for(;;) {
m_free(amail);
amail = tty_get("Email address: ");
trim_spaces(amail);
strlwr(amail);
tty_kill_prompt();
if( !*amail )
break; /* no email address is okay */
else if( strcspn( amail, "abcdefghijklmnopqrstuvwxyz_-.@" )
|| string_count_chr(amail,'@') != 1
|| *amail == '@'
|| amail[strlen(amail)-1] == '@'
|| amail[strlen(amail)-1] == '.'
|| strstr(amail, "..") )
tty_printf("Not a valid email address\n");
else
break;
}
}
if( !acomment ) {
for(;;) {
m_free(acomment);
acomment = tty_get("Comment: ");
trim_spaces(acomment);
tty_kill_prompt();
if( !*acomment )
break; /* no comment is okay */
else if( strpbrk( acomment, "()" ) )
tty_printf("Invalid character in comment\n");
else
break;
}
}
m_free(uid);
tty_printf("\n");
uid = tty_get("Your User-ID: ");
tty_kill_prompt();
if( strlen(uid) < 5 )
tty_printf("Please enter a string of at least 5 characters\n");
else {
tty_printf("You selected this USER-ID:\n \"%s\"\n\n", uid);
answer = tty_get("Is this correct? ");
uid = p = m_alloc(strlen(aname)+strlen(amail)+strlen(acomment)+10);
p = stpcpy(p, aname );
if( *acomment )
p = stpcpy(stpcpy(stpcpy(p," ("), acomment),")");
if( *amail )
p = stpcpy(stpcpy(stpcpy(p," <"), amail),">");
tty_printf("You selected this USER-ID:\n \"%s\"\n\n", uid);
for(;;) {
answer = tty_get("Edit (N)ame, (C)omment, (E)mail or (O)kay? ");
tty_kill_prompt();
if( answer_is_yes(answer) ) {
m_free(answer);
if( strlen(answer) > 1 )
;
else if( *answer == 'N' || *answer == 'n' ) {
m_free(aname); aname = NULL;
break;
}
else if( *answer == 'C' || *answer == 'c' ) {
m_free(acomment); acomment = NULL;
break;
}
else if( *answer == 'E' || *answer == 'e' ) {
m_free(amail); amail = NULL;
break;
}
else if( *answer == 'O' || *answer == 'o' ) {
m_free(aname); aname = NULL;
m_free(acomment); acomment = NULL;
m_free(amail); amail = NULL;
break;
}
m_free(answer);
}
m_free(answer);
if( !amail && !acomment && !amail )
break;
m_free(uid); uid = NULL;
}
#endif

127
g10/keyid.c
View File

@ -46,6 +46,77 @@ pubkey_letter( int algo )
}
}
/* this is special code for V3 which uses ElGamal and
* calculates a fingerprint like V4, but with rmd160
* and a version byte of 3. Returns an rmd160 handle, caller must
* do rmd160_final()
*/
static RMDHANDLE
v3_elg_fingerprint_md( PKT_public_cert *pkc )
{
RMDHANDLE md;
byte *buf1, *buf2, *buf3;
byte *p1, *p2, *p3;
unsigned n1, n2, n3;
unsigned n;
p1 = buf1 = mpi_get_buffer( pkc->d.elg.p, &n1, NULL );
for( ; !*p1 && n1; p1++, n1-- ) /* skip leading null bytes */
;
p2 = buf2 = mpi_get_buffer( pkc->d.elg.g, &n2, NULL );
for( ; !*p2 && n2; p2++, n2-- ) /* skip leading null bytes */
;
p3 = buf3 = mpi_get_buffer( pkc->d.elg.y, &n3, NULL );
for( ; !*p3 && n3; p3++, n3-- ) /* skip leading null bytes */
;
/* calculate length of packet (1+4+2+1+2+n1+2+n2+2+n3) */
n = 14 + n1 + n2 + n3;
md = rmd160_open(0);
rmd160_putchar( md, 0x99 ); /* ctb */
rmd160_putchar( md, n >> 8 ); /* 2 byte length header */
rmd160_putchar( md, n );
rmd160_putchar( md, 3 ); /* version */
{ u32 a = pkc->timestamp;
rmd160_putchar( md, a >> 24 );
rmd160_putchar( md, a >> 16 );
rmd160_putchar( md, a >> 8 );
rmd160_putchar( md, a );
}
{ u16 a = pkc->valid_days;
rmd160_putchar( md, a >> 8 );
rmd160_putchar( md, a );
}
rmd160_putchar( md, pkc->pubkey_algo );
rmd160_putchar( md, n1>>8); rmd160_putchar( md, n1 ); rmd160_write( md, p1, n1 );
rmd160_putchar( md, n2>>8); rmd160_putchar( md, n2 ); rmd160_write( md, p2, n2 );
rmd160_putchar( md, n3>>8); rmd160_putchar( md, n3 ); rmd160_write( md, p3, n3 );
m_free(buf1);
m_free(buf2);
m_free(buf3);
return md;
}
static RMDHANDLE
v3_elg_fingerprint_md_skc( PKT_secret_cert *skc )
{
PKT_public_cert pkc;
byte *p;
pkc.pubkey_algo = skc->pubkey_algo;
pkc.timestamp = skc->timestamp;
pkc.valid_days = skc->valid_days;
pkc.pubkey_algo = skc->pubkey_algo;
pkc.d.elg.p = skc->d.elg.p;
pkc.d.elg.g = skc->d.elg.g;
pkc.d.elg.y = skc->d.elg.y;
return v3_elg_fingerprint_md( &pkc );
}
/****************
* Get the keyid from the secret key certificate and put it into keyid
@ -61,7 +132,14 @@ keyid_from_skc( PKT_secret_cert *skc, u32 *keyid )
keyid = dummy_keyid;
if( skc->pubkey_algo == PUBKEY_ALGO_ELGAMAL ) {
lowbits = mpi_get_keyid( skc->d.elg.y, keyid );
const byte *dp;
RMDHANDLE md;
md = v3_elg_fingerprint_md_skc(skc);
dp = rmd160_final( md );
keyid[0] = dp[12] << 24 | dp[13] << 16 | dp[14] << 8 | dp[15] ;
keyid[1] = dp[16] << 24 | dp[17] << 16 | dp[18] << 8 | dp[19] ;
lowbits = keyid[1];
rmd160_close(md);
}
else if( skc->pubkey_algo == PUBKEY_ALGO_RSA ) {
lowbits = mpi_get_keyid( skc->d.rsa.rsa_n, keyid );
@ -87,7 +165,14 @@ keyid_from_pkc( PKT_public_cert *pkc, u32 *keyid )
keyid = dummy_keyid;
if( pkc->pubkey_algo == PUBKEY_ALGO_ELGAMAL ) {
lowbits = mpi_get_keyid( pkc->d.elg.y, keyid );
const byte *dp;
RMDHANDLE md;
md = v3_elg_fingerprint_md(pkc);
dp = rmd160_final( md );
keyid[0] = dp[12] << 24 | dp[13] << 16 | dp[14] << 8 | dp[15] ;
keyid[1] = dp[16] << 24 | dp[17] << 16 | dp[18] << 8 | dp[19] ;
lowbits = keyid[1];
rmd160_close(md);
}
else if( pkc->pubkey_algo == PUBKEY_ALGO_RSA ) {
lowbits = mpi_get_keyid( pkc->d.rsa.rsa_n, keyid );
@ -213,47 +298,21 @@ fingerprint_from_skc( PKT_secret_cert *skc, size_t *ret_len )
return p;
}
byte *
fingerprint_from_pkc( PKT_public_cert *pkc, size_t *ret_len )
{
byte *p, *buf, *array;
const char *dp;
size_t len;
unsigned n;
if( pkc->pubkey_algo == PUBKEY_ALGO_ELGAMAL ) {
RMDHANDLE md;
const char *dp;
md = rmd160_open(0);
{ u32 a = pkc->timestamp;
rmd160_putchar( md, a >> 24 );
rmd160_putchar( md, a >> 16 );
rmd160_putchar( md, a >> 8 );
rmd160_putchar( md, a );
}
{ u16 a = pkc->valid_days;
rmd160_putchar( md, a >> 8 );
rmd160_putchar( md, a );
}
rmd160_putchar( md, pkc->pubkey_algo );
p = buf = mpi_get_buffer( pkc->d.elg.p, &n, NULL );
for( ; !*p && n; p++, n-- )
;
rmd160_putchar( md, n>>8); rmd160_putchar( md, n ); rmd160_write( md, p, n );
m_free(buf);
p = buf = mpi_get_buffer( pkc->d.elg.g, &n, NULL );
for( ; !*p && n; p++, n-- )
;
rmd160_putchar( md, n>>8); rmd160_putchar( md, n ); rmd160_write( md, p, n );
m_free(buf);
p = buf = mpi_get_buffer( pkc->d.elg.y, &n, NULL );
for( ; !*p && n; p++, n-- )
;
rmd160_putchar( md, n>>8); rmd160_putchar( md, n ); rmd160_write( md, p, n );
m_free(buf);
dp = rmd160_final(md);
md = v3_elg_fingerprint_md(pkc);
dp = rmd160_final( md );
array = m_alloc( 20 );
len = 20;
memcpy(array, dp, 20 );

4
g10/main.h
View File

@ -24,10 +24,6 @@
#include "cipher.h"
#include "keydb.h"
#define DEFAULT_CIPHER_ALGO CIPHER_ALGO_BLOWFISH
#define DEFAULT_PUBKEY_ALGO PUBKEY_ALGO_ELGAMAL
#define DEFAULT_DIGEST_ALGO DIGEST_ALGO_RMD160
typedef struct {
int header_okay;

2
g10/mainproc.c
View File

@ -232,7 +232,7 @@ proc_encrypted( CTX c, PACKET *pkt )
if( !c->dek && !c->last_was_pubkey_enc ) {
/* assume this is conventional encrypted data */
c->dek = m_alloc_secure( sizeof *c->dek );
c->dek->algo = DEFAULT_CIPHER_ALGO;
c->dek->algo = opt.def_cipher_algo;
result = make_dek_from_passphrase( c->dek, 0 );
}
else if( !c->dek )

6
g10/options.h
View File

@ -36,9 +36,9 @@ struct {
int list_sigs; /* list signatures */
int no_armor;
int list_packets; /* list-packets mode */
int reserved6;
int reserved7;
int reserved8;
int def_cipher_algo;
int def_pubkey_algo;
int def_digest_algo;
int reserved9;
int reserved10;
int reserved11;

5
g10/pubkey-enc.c
View File

@ -131,6 +131,11 @@ get_session_key( PKT_pubkey_enc *k, DEK *dek )
{ rc = G10ERR_WRONG_SECKEY; goto leave; }
dek->algo = CIPHER_ALGO_BLOWFISH;
break;
case CIPHER_ALGO_BLOWFISH128:
if( i != 18 ) /* length of blowfish-128 is 16 (+2 bytes checksum) */
{ rc = G10ERR_WRONG_SECKEY; goto leave; }
dek->algo = CIPHER_ALGO_BLOWFISH128;
break;
default:
rc = G10ERR_CIPHER_ALGO;
goto leave;

4
g10/seskey.c
View File

@ -41,6 +41,10 @@ make_session_key( DEK *dek )
dek->keylen = 20;
randomize_buffer( dek->key, dek->keylen, 1 );
break;
case CIPHER_ALGO_BLOWFISH128:
dek->keylen = 16;
randomize_buffer( dek->key, dek->keylen, 1 );
break;
default: log_bug("invalid algo %d in make_session_key()\n");
}

8
include/cipher.h
View File

@ -88,7 +88,13 @@ int cipher_debug_mode;
#define is_valid_pubkey_algo(a) ( (a) == PUBKEY_ALGO_ELGAMAL )
#endif
/*-- misc.c --*/
int string_to_cipher_algo( const char *string );
int string_to_pubkey_algo( const char *string );
int string_to_digest_algo( const char *string );
int check_cipher_algo( int algo );
int check_pubkey_algo( int algo );
int check_digest_algo( int algo );
/*-- md.c --*/
int md_okay( int algo );

6
include/util.h
View File

@ -92,10 +92,16 @@ int answer_is_yes( const char *s );
void free_strlist( STRLIST sl );
#define FREE_STRLIST(a) do { free_strlist((a)); (a) = NULL ; } while(0)
char *memistr( char *buf, size_t buflen, const char *sub );
char *trim_spaces( char *string );
int string_count_chr( const char *string, int c );
#define stricmp(a,b) strcasecmp((a),(b))
#ifndef HAVE_STPCPY
char *stpcpy(char *a,const char *b);
#endif
#ifndef HAVE_STRLWR
char *strlwr(char *a);
#endif
/******** some macros ************/

2
util/iobuf.c
View File

@ -350,7 +350,7 @@ iobuf_create( const char *fname )
file_filter_ctx_t *fcx;
size_t len;
if( !fname ) {
if( !fname || (*fname=='-' && !fname[1]) ) {
fp = stdout;
fname = "[stdout]";
}

48
util/strgutil.c
View File

@ -62,6 +62,43 @@ memistr( char *buf, size_t buflen, const char *sub )
}
/****************
* remove leading and trailing white spaces
*/
char *
trim_spaces( char *str )
{
char *string, *p, *mark;
string = str;
/* find first non space character */
for( p=string; *p && isspace( *(byte*)p ) ; p++ )
;
/* move characters */
for( (mark = NULL); (*string = *p); string++, p++ )
if( isspace( *(byte*)p ) ) {
if( !mark )
mark = string ;
}
else
mark = NULL ;
if( mark )
*mark = '\0' ; /* remove trailing spaces */
return str ;
}
int
string_count_chr( const char *string, int c )
{
int count;
for(count=0; *string; string++ )
if( *string == c )
count++;
return count;
}
/*********************************************
********** missing string functions *********
*********************************************/
@ -78,3 +115,14 @@ stpcpy(char *a,const char *b)
}
#endif
#ifndef HAVE_STRLWR
char *
strlwr(char *s)
{
char *p;
for(p=s; *p; p++ )
*p = tolower(*p);
return s;
}
#endif