* called by a name other than "ssh" or "Secure Shell".
*
*
- * Copyright (c) 2000 Markus Friedl. All rights reserved.
+ * Copyright (c) 2000, 2001 Markus Friedl. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "includes.h"
-RCSID("$OpenBSD: key.c,v 1.20 2001/03/11 15:13:09 jakob Exp $");
+RCSID("$OpenBSD: key.c,v 1.33 2001/10/04 14:34:16 markus Exp $");
#include <openssl/evp.h>
DSA *dsa;
k = xmalloc(sizeof(*k));
k->type = type;
+ k->flags = 0;
k->dsa = NULL;
k->rsa = NULL;
switch (k->type) {
return 0;
}
-u_char*
+static u_char*
key_fingerprint_raw(Key *k, enum fp_type dgst_type, size_t *dgst_raw_length)
{
+ EVP_MD *md = NULL;
+ EVP_MD_CTX ctx;
u_char *blob = NULL;
u_char *retval = NULL;
int len = 0;
*dgst_raw_length = 0;
+ switch (dgst_type) {
+ case SSH_FP_MD5:
+ md = EVP_md5();
+ break;
+ case SSH_FP_SHA1:
+ md = EVP_sha1();
+ break;
+ default:
+ fatal("key_fingerprint_raw: bad digest type %d",
+ dgst_type);
+ }
switch (k->type) {
case KEY_RSA1:
nlen = BN_num_bytes(k->rsa->n);
break;
}
if (blob != NULL) {
- EVP_MD *md = NULL;
- EVP_MD_CTX ctx;
-
retval = xmalloc(EVP_MAX_MD_SIZE);
-
- switch (dgst_type) {
- case SSH_FP_MD5:
- md = EVP_md5();
- break;
- case SSH_FP_SHA1:
- md = EVP_sha1();
- break;
- default:
- fatal("key_fingerprint_raw: bad digest type %d",
- dgst_type);
- }
-
EVP_DigestInit(&ctx, md);
EVP_DigestUpdate(&ctx, blob, len);
EVP_DigestFinal(&ctx, retval, NULL);
return retval;
}
-char*
-key_fingerprint_hex(u_char* dgst_raw, size_t dgst_raw_len)
+static char*
+key_fingerprint_hex(u_char* dgst_raw, size_t dgst_raw_len)
{
char *retval;
int i;
- retval = xmalloc(dgst_raw_len * 3);
+ retval = xmalloc(dgst_raw_len * 3 + 1);
retval[0] = '\0';
for(i = 0; i < dgst_raw_len; i++) {
char hex[4];
return retval;
}
-char*
-key_fingerprint_bubblebabble(u_char* dgst_raw, size_t dgst_raw_len)
+static char*
+key_fingerprint_bubblebabble(u_char* dgst_raw, size_t dgst_raw_len)
{
char vowels[] = { 'a', 'e', 'i', 'o', 'u', 'y' };
char consonants[] = { 'b', 'c', 'd', 'f', 'g', 'h', 'k', 'l', 'm',
}
char*
-key_fingerprint_ex(Key *k, enum fp_type dgst_type, enum fp_rep dgst_rep)
+key_fingerprint(Key *k, enum fp_type dgst_type, enum fp_rep dgst_rep)
{
- char *retval = NULL;
+ char *retval = NULL;
u_char *dgst_raw;
- size_t dgst_raw_len;
+ size_t dgst_raw_len;
dgst_raw = key_fingerprint_raw(k, dgst_type, &dgst_raw_len);
if (!dgst_raw)
- fatal("key_fingerprint_ex: null value returned from key_fingerprint_raw()");
+ fatal("key_fingerprint: null from key_fingerprint_raw()");
switch(dgst_rep) {
case SSH_FP_HEX:
retval = key_fingerprint_hex(dgst_raw, dgst_raw_len);
return retval;
}
-char *
-key_fingerprint(Key *k)
-{
- static char retval[(EVP_MAX_MD_SIZE + 1) * 3];
- char *digest;
-
- digest = key_fingerprint_ex(k, SSH_FP_MD5, SSH_FP_HEX);
- strlcpy(retval, digest, sizeof(retval));
- xfree(digest);
- return retval;
-}
-
/*
* Reads a multiple-precision integer in decimal from the buffer, and advances
* the pointer. The integer must already be initialized. This function is
* last processed (and maybe modified) character. Note that this may modify
* the buffer containing the number.
*/
-int
+static int
read_bignum(char **cpp, BIGNUM * value)
{
char *cp = *cpp;
*cpp = cp;
return 1;
}
-int
+static int
write_bignum(FILE *f, BIGNUM *num)
{
char *buf = BN_bn2dec(num);
return 0;
}
fprintf(f, " %s", buf);
- xfree(buf);
+ OPENSSL_free(buf);
return 1;
}
-/* returns 1 ok, -1 error, 0 type mismatch */
+/* returns 1 ok, -1 error */
int
key_read(Key *ret, char **cpp)
{
} else if (ret->type != type) {
/* is a key, but different type */
debug3("key_read: type mismatch");
- return 0;
+ return -1;
}
len = 2*strlen(cp);
blob = xmalloc(len);
return 0;
}
-RSA *
+static RSA *
rsa_generate_private_key(u_int bits)
{
RSA *private;
return private;
}
-DSA*
+static DSA*
dsa_generate_private_key(u_int bits)
{
DSA *private = DSA_generate_parameters(bits, NULL, 0, NULL, NULL, NULL, NULL);
return KEY_UNSPEC;
}
+int
+key_names_valid2(const char *names)
+{
+ char *s, *cp, *p;
+
+ if (names == NULL || strcmp(names, "") == 0)
+ return 0;
+ s = cp = xstrdup(names);
+ for ((p = strsep(&cp, ",")); p && *p != '\0';
+ (p = strsep(&cp, ","))) {
+ switch (key_type_from_name(p)) {
+ case KEY_RSA1:
+ case KEY_UNSPEC:
+ xfree(s);
+ return 0;
+ }
+ }
+ debug3("key names ok: [%s]", names);
+ xfree(s);
+ return 1;
+}
+
Key *
-key_from_blob(char *blob, int blen)
+key_from_blob(u_char *blob, int blen)
{
Buffer b;
char *ktype;
buffer_put_bignum2(&b, key->rsa->n);
break;
default:
- error("key_to_blob: illegal key type %d", key->type);
- break;
+ error("key_to_blob: unsupported key type %d", key->type);
+ buffer_free(&b);
+ return 0;
}
len = buffer_len(&b);
buf = xmalloc(len);
u_char *signature, int signaturelen,
u_char *data, int datalen)
{
+ if (signaturelen == 0)
+ return -1;
+
switch(key->type){
case KEY_DSA:
return ssh_dss_verify(key, signature, signaturelen, data, datalen);
andersk / openssh.git / blobdiff