*/
#include "includes.h"
-RCSID("$OpenBSD: authfile.c,v 1.39 2001/10/07 10:29:52 markus Exp $");
+RCSID("$OpenBSD: authfile.c,v 1.48 2002/02/28 15:46:33 markus Exp $");
#include <openssl/err.h>
#include <openssl/evp.h>
#include "ssh.h"
#include "log.h"
#include "authfile.h"
+#include "rsa.h"
/* Version identification string for SSH v1 identity files. */
static const char authfile_id_string[] =
const char *comment)
{
Buffer buffer, encrypted;
- char buf[100], *cp;
- int fd, i;
+ u_char buf[100], *cp;
+ int fd, i, cipher_num;
CipherContext ciphercontext;
Cipher *cipher;
u_int32_t rand;
* If the passphrase is empty, use SSH_CIPHER_NONE to ease converting
* to another cipher; otherwise use SSH_AUTHFILE_CIPHER.
*/
- if (strcmp(passphrase, "") == 0)
- cipher = cipher_by_number(SSH_CIPHER_NONE);
- else
- cipher = cipher_by_number(SSH_AUTHFILE_CIPHER);
- if (cipher == NULL)
+ cipher_num = (strcmp(passphrase, "") == 0) ?
+ SSH_CIPHER_NONE : SSH_AUTHFILE_CIPHER;
+ if ((cipher = cipher_by_number(cipher_num)) == NULL)
fatal("save_private_key_rsa: bad cipher");
/* This buffer is used to built the secret part of the private key. */
buffer_put_char(&encrypted, 0);
/* Store cipher type. */
- buffer_put_char(&encrypted, cipher->number);
+ buffer_put_char(&encrypted, cipher_num);
buffer_put_int(&encrypted, 0); /* For future extension */
/* Store public key. This will be in plain text. */
buffer_put_cstring(&encrypted, comment);
/* Allocate space for the private part of the key in the buffer. */
- buffer_append_space(&encrypted, &cp, buffer_len(&buffer));
+ cp = buffer_append_space(&encrypted, buffer_len(&buffer));
- cipher_set_key_string(&ciphercontext, cipher, passphrase);
- cipher_encrypt(&ciphercontext, (u_char *) cp,
- (u_char *) buffer_ptr(&buffer), buffer_len(&buffer));
+ cipher_set_key_string(&ciphercontext, cipher, passphrase,
+ CIPHER_ENCRYPT);
+ cipher_crypt(&ciphercontext, cp,
+ buffer_ptr(&buffer), buffer_len(&buffer));
+ cipher_cleanup(&ciphercontext);
memset(&ciphercontext, 0, sizeof(ciphercontext));
/* Destroy temporary data. */
if (write(fd, buffer_ptr(&encrypted), buffer_len(&encrypted)) !=
buffer_len(&encrypted)) {
error("write to key file %s failed: %s", filename,
- strerror(errno));
+ strerror(errno));
buffer_free(&encrypted);
close(fd);
unlink(filename);
int fd;
int success = 0;
int len = strlen(_passphrase);
- char *passphrase = (len > 0) ? (char *)_passphrase : NULL;
- EVP_CIPHER *cipher = (len > 0) ? EVP_des_ede3_cbc() : NULL;
+ u_char *passphrase = (len > 0) ? (u_char *)_passphrase : NULL;
+ const EVP_CIPHER *cipher = (len > 0) ? EVP_des_ede3_cbc() : NULL;
if (len > 0 && len <= 4) {
error("passphrase too short: have %d bytes, need > 4", len);
lseek(fd, (off_t) 0, SEEK_SET);
buffer_init(&buffer);
- buffer_append_space(&buffer, &cp, len);
+ cp = buffer_append_space(&buffer, len);
if (read(fd, cp, (size_t) len) != (size_t) len) {
debug("Read from key file %.200s failed: %.100s", filename,
int i, check1, check2, cipher_type;
off_t len;
Buffer buffer, decrypted;
- char *cp;
+ u_char *cp;
CipherContext ciphercontext;
Cipher *cipher;
- BN_CTX *ctx;
- BIGNUM *aux;
Key *prv = NULL;
len = lseek(fd, (off_t) 0, SEEK_END);
lseek(fd, (off_t) 0, SEEK_SET);
buffer_init(&buffer);
- buffer_append_space(&buffer, &cp, len);
+ cp = buffer_append_space(&buffer, len);
if (read(fd, cp, (size_t) len) != (size_t) len) {
debug("Read from key file %.200s failed: %.100s", filename,
}
/* Initialize space for decrypted data. */
buffer_init(&decrypted);
- buffer_append_space(&decrypted, &cp, buffer_len(&buffer));
+ cp = buffer_append_space(&decrypted, buffer_len(&buffer));
/* Rest of the buffer is encrypted. Decrypt it using the passphrase. */
- cipher_set_key_string(&ciphercontext, cipher, passphrase);
- cipher_decrypt(&ciphercontext, (u_char *) cp,
- (u_char *) buffer_ptr(&buffer), buffer_len(&buffer));
+ cipher_set_key_string(&ciphercontext, cipher, passphrase,
+ CIPHER_DECRYPT);
+ cipher_crypt(&ciphercontext, cp,
+ buffer_ptr(&buffer), buffer_len(&buffer));
+ cipher_cleanup(&ciphercontext);
memset(&ciphercontext, 0, sizeof(ciphercontext));
buffer_free(&buffer);
buffer_get_bignum(&decrypted, prv->rsa->p); /* q */
/* calculate p-1 and q-1 */
- ctx = BN_CTX_new();
- aux = BN_new();
-
- BN_sub(aux, prv->rsa->q, BN_value_one());
- BN_mod(prv->rsa->dmq1, prv->rsa->d, aux, ctx);
-
- BN_sub(aux, prv->rsa->p, BN_value_one());
- BN_mod(prv->rsa->dmp1, prv->rsa->d, aux, ctx);
-
- BN_clear_free(aux);
- BN_CTX_free(ctx);
+ rsa_generate_additional_parameters(prv->rsa);
buffer_free(&decrypted);
close(fd);
debug("PEM_read_PrivateKey failed");
(void)ERR_get_error();
} else if (pk->type == EVP_PKEY_RSA &&
- (type == KEY_UNSPEC||type==KEY_RSA)) {
+ (type == KEY_UNSPEC||type==KEY_RSA)) {
prv = key_new(KEY_UNSPEC);
prv->rsa = EVP_PKEY_get1_RSA(pk);
prv->type = KEY_RSA;
RSA_print_fp(stderr, prv->rsa, 8);
#endif
} else if (pk->type == EVP_PKEY_DSA &&
- (type == KEY_UNSPEC||type==KEY_DSA)) {
+ (type == KEY_UNSPEC||type==KEY_DSA)) {
prv = key_new(KEY_UNSPEC);
prv->dsa = EVP_PKEY_get1_DSA(pk);
prv->type = KEY_DSA;
while (fgets(line, sizeof(line), f)) {
line[sizeof(line)-1] = '\0';
cp = line;
- switch(*cp){
+ switch (*cp) {
case '#':
case '\n':
case '\0':
andersk / gssapi-openssh.git / blobdiff