keyfiles.c and wrapper.c: Remove useless secure memory flag (for libgcrypt)
dh.c: Initialize libgcrypt only if not done before client.c: Remove cleanup of cryptograhpic library. This needs to be put somewhere, like in a crypto_finish function or something. git-svn-id: svn+ssh://svn.berlios.de/svnroot/repos/libssh/trunk@70 7dcaeef0-15fb-0310-b436-a5af3365683c
Этот коммит содержится в:
родитель
10b1a631e8
Коммит
770e73d8b7
@ -20,13 +20,11 @@ the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA. */
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <netdb.h>
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#include "libssh/priv.h"
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#include "libssh/ssh2.h"
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extern int connections;
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#define set_status(opt,status) do {\
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if (opt->connect_status_function) \
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@ -316,12 +314,6 @@ void ssh_disconnect(SSH_SESSION *session){
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}
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session->alive=0;
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ssh_cleanup(session);
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if (!--connections)
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#ifdef HAVE_LIBGCRYPT
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gcry_control(GCRYCTL_TERM_SECMEM);
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#elif defined HAVE_LIBCRYPTO
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EVP_cleanup();
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#endif
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}
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const char *ssh_copyright(){
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@ -78,7 +78,7 @@ unsigned char * packet_encrypt(SSH_SESSION *session,void *data,u32 len){
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#endif
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out=malloc(len);
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if(session->version==2){
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ctx=hmac_init(session->current_crypto->encryptMAC,20,HMAC_SHA1);
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ctx=hmac_init(session->current_crypto->encryptMAC,20,HMAC_SHA1);
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hmac_update(ctx,(unsigned char *)&seq,sizeof(u32));
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hmac_update(ctx,data,len);
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hmac_final(ctx,session->current_crypto->hmacbuf,&finallen);
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23
libssh/dh.c
23
libssh/dh.c
@ -37,9 +37,9 @@ MA 02111-1307, USA. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <netdb.h>
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#include <string.h>
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#include "libssh/crypto.h"
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#include "libssh/priv.h"
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#ifdef HAVE_LIBCRYPTO
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@ -47,8 +47,7 @@ MA 02111-1307, USA. */
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#include <openssl/evp.h>
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#include <openssl/err.h>
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#endif
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#include <string.h>
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#include "libssh/crypto.h"
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static unsigned char p_value[] = {
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0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xC9, 0x0F, 0xDA, 0xA2,
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0x21, 0x68, 0xC2, 0x34, 0xC4, 0xC6, 0x62, 0x8B, 0x80, 0xDC, 0x1C, 0xD1,
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@ -67,8 +66,6 @@ static unsigned long g_int = 2 ; /* G is defined as 2 by the ssh2 standards */
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static bignum g;
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static bignum p;
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int connections = 0;
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/* maybe it might be enhanced .... */
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/* XXX Do it. */
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int ssh_get_random(void *where, int len, int strong){
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@ -93,6 +90,11 @@ void ssh_crypto_init(){
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if(!init){
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#ifdef HAVE_LIBGCRYPT
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gcry_check_version(NULL);
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if (!gcry_control(GCRYCTL_INITIALIZATION_FINISHED_P,0))
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{
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gcry_control(GCRYCTL_INIT_SECMEM, 4096);
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gcry_control(GCRYCTL_INITIALIZATION_FINISHED,0);
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}
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#endif
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g=bignum_new();
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bignum_set_word(g,g_int);
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@ -101,16 +103,9 @@ void ssh_crypto_init(){
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#elif defined HAVE_LIBCRYPTO
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p=bignum_new();
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bignum_bin2bn(p_value,P_LEN,p);
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#endif
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init++;
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}
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if (!connections++){
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#ifdef HAVE_LIBGCRYPT
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gcry_control(GCRYCTL_INIT_SECMEM,524288,0);
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gcry_control(GCRYCTL_INITIALIZATION_FINISHED,0);
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#elif defined HAVE_LIBCRYPTO
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OpenSSL_add_all_algorithms();
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#endif
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init++;
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}
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}
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@ -208,7 +208,7 @@ int privatekey_decrypt(int algo, int mode, unsigned int key_len,
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if (passphrase_len <= 0)
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return 0;
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passphrase_to_key(passphrase, passphrase_len, iv, key, key_len);
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if (gcry_cipher_open(&cipher, algo, mode, GCRY_CIPHER_SECURE)
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if (gcry_cipher_open(&cipher, algo, mode, 0)
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|| gcry_cipher_setkey(cipher, key, key_len)
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|| gcry_cipher_setiv(cipher, iv, iv_len)
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|| !(tmp = malloc(buffer_get_len(data) * sizeof (char)))
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@ -35,7 +35,7 @@ MA 02111-1307, USA. */
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SHACTX sha1_init(){
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SHACTX ret;
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gcry_md_open(&ret,GCRY_MD_SHA1,GCRY_MD_FLAG_SECURE);
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gcry_md_open(&ret,GCRY_MD_SHA1,0);
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return ret;
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}
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void sha1_update(SHACTX c, const void *data, unsigned long len){
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@ -52,7 +52,7 @@ void sha1(unsigned char *digest,int len,unsigned char *hash){
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MD5CTX md5_init(){
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MD5CTX ret;
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gcry_md_open(&ret,GCRY_MD_MD5,GCRY_MD_FLAG_SECURE);
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gcry_md_open(&ret,GCRY_MD_MD5,0);
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return ret;
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}
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void md5_update(MD5CTX c, const void *data, unsigned long len){
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@ -68,10 +68,10 @@ HMACCTX hmac_init(const void *key, int len,int type){
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HMACCTX c;
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switch(type){
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case HMAC_SHA1:
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gcry_md_open(&c,GCRY_MD_SHA1, GCRY_MD_FLAG_HMAC | GCRY_MD_FLAG_SECURE);
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gcry_md_open(&c,GCRY_MD_SHA1, GCRY_MD_FLAG_HMAC);
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break;
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case HMAC_MD5:
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gcry_md_open(&c,GCRY_MD_MD5, GCRY_MD_FLAG_HMAC | GCRY_MD_FLAG_SECURE);
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gcry_md_open(&c,GCRY_MD_MD5, GCRY_MD_FLAG_HMAC);
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break;
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default:
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c=NULL;
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@ -97,7 +97,7 @@ static void alloc_key(struct crypto_struct *cipher){
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static void blowfish_set_key(struct crypto_struct *cipher, void *key, void *IV){
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if(!cipher->key){
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alloc_key(cipher);
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gcry_cipher_open(&cipher->key[0],GCRY_CIPHER_BLOWFISH,GCRY_CIPHER_MODE_CBC,GCRY_CIPHER_SECURE);
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gcry_cipher_open(&cipher->key[0],GCRY_CIPHER_BLOWFISH,GCRY_CIPHER_MODE_CBC,0);
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gcry_cipher_setkey(cipher->key[0],key,16);
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gcry_cipher_setiv(cipher->key[0],IV,8);
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}
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@ -116,13 +116,13 @@ static void aes_set_key(struct crypto_struct *cipher, void *key, void *IV){
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alloc_key(cipher);
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switch(cipher->keysize){
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case 128:
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gcry_cipher_open(&cipher->key[0],GCRY_CIPHER_AES128,GCRY_CIPHER_MODE_CBC,GCRY_CIPHER_SECURE);
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gcry_cipher_open(&cipher->key[0],GCRY_CIPHER_AES128,GCRY_CIPHER_MODE_CBC,0);
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break;
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case 192:
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gcry_cipher_open(&cipher->key[0],GCRY_CIPHER_AES192,GCRY_CIPHER_MODE_CBC,GCRY_CIPHER_SECURE);
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gcry_cipher_open(&cipher->key[0],GCRY_CIPHER_AES192,GCRY_CIPHER_MODE_CBC,0);
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break;
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case 256:
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gcry_cipher_open(&cipher->key[0],GCRY_CIPHER_AES256,GCRY_CIPHER_MODE_CBC,GCRY_CIPHER_SECURE);
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gcry_cipher_open(&cipher->key[0],GCRY_CIPHER_AES256,GCRY_CIPHER_MODE_CBC,0);
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break;
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}
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gcry_cipher_setkey(cipher->key[0],key,cipher->keysize/8);
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@ -141,7 +141,7 @@ static void aes_decrypt(struct crypto_struct *cipher, void *in, void *out,unsign
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static void des3_set_key(struct crypto_struct *cipher, void *key, void *IV){
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if(!cipher->key){
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alloc_key(cipher);
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gcry_cipher_open(&cipher->key[0],GCRY_CIPHER_3DES,GCRY_CIPHER_MODE_CBC,GCRY_CIPHER_SECURE);
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gcry_cipher_open(&cipher->key[0],GCRY_CIPHER_3DES,GCRY_CIPHER_MODE_CBC,0);
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gcry_cipher_setkey(cipher->key[0],key,24);
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gcry_cipher_setiv(cipher->key[0],IV,8);
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}
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@ -160,13 +160,13 @@ static void des3_decrypt(struct crypto_struct *cipher, void *in, void *out,
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static void des3_1_set_key(struct crypto_struct *cipher, void *key, void *IV){
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if(!cipher->key){
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alloc_key(cipher);
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gcry_cipher_open(&cipher->key[0],GCRY_CIPHER_DES,GCRY_CIPHER_MODE_CBC,GCRY_CIPHER_SECURE);
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gcry_cipher_open(&cipher->key[0],GCRY_CIPHER_DES,GCRY_CIPHER_MODE_CBC,0);
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gcry_cipher_setkey(cipher->key[0],key,8);
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gcry_cipher_setiv(cipher->key[0],IV,8);
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gcry_cipher_open(&cipher->key[1],GCRY_CIPHER_DES,GCRY_CIPHER_MODE_CBC,GCRY_CIPHER_SECURE);
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gcry_cipher_open(&cipher->key[1],GCRY_CIPHER_DES,GCRY_CIPHER_MODE_CBC,0);
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gcry_cipher_setkey(cipher->key[1],key+8,8);
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gcry_cipher_setiv(cipher->key[1],IV+8,8);
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gcry_cipher_open(&cipher->key[2],GCRY_CIPHER_DES,GCRY_CIPHER_MODE_CBC,GCRY_CIPHER_SECURE);
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gcry_cipher_open(&cipher->key[2],GCRY_CIPHER_DES,GCRY_CIPHER_MODE_CBC,0);
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gcry_cipher_setkey(cipher->key[2],key+16,8);
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gcry_cipher_setiv(cipher->key[2],IV+16,8);
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}
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