* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "includes.h"
-RCSID("$OpenBSD: key.c,v 1.19 2001/03/11 15:03:15 jakob Exp $");
+RCSID("$OpenBSD: key.c,v 1.26 2001/06/23 05:26:02 markus Exp $");
#include <openssl/evp.h>
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);
}
char*
-key_fingerprint_hex(u_char* dgst_raw, size_t dgst_raw_len)
+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];
}
char*
-key_fingerprint_bubblebabble(u_char* dgst_raw, size_t dgst_raw_len)
+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',
'n', 'p', 'r', 's', 't', 'v', 'z', 'x' };
- u_int rounds, idx, retval_idx, seed;
+ u_int i, j = 0, rounds, seed = 1;
char *retval;
rounds = (dgst_raw_len / 2) + 1;
retval = xmalloc(sizeof(char) * (rounds*6));
- seed = 1;
- retval_idx = 0;
- retval[retval_idx++] = 'x';
- for (idx=0;idx<rounds;idx++) {
+ retval[j++] = 'x';
+ for (i = 0; i < rounds; i++) {
u_int idx0, idx1, idx2, idx3, idx4;
- if ((idx + 1 < rounds) || (dgst_raw_len % 2 != 0)) {
- idx0 = (((((u_int)(dgst_raw[2 * idx])) >> 6) & 3) +
+ if ((i + 1 < rounds) || (dgst_raw_len % 2 != 0)) {
+ idx0 = (((((u_int)(dgst_raw[2 * i])) >> 6) & 3) +
seed) % 6;
- idx1 = (((u_int)(dgst_raw[2 * idx])) >> 2) & 15;
- idx2 = ((((u_int)(dgst_raw[2 * idx])) & 3) +
+ idx1 = (((u_int)(dgst_raw[2 * i])) >> 2) & 15;
+ idx2 = ((((u_int)(dgst_raw[2 * i])) & 3) +
(seed / 6)) % 6;
- retval[retval_idx++] = vowels[idx0];
- retval[retval_idx++] = consonants[idx1];
- retval[retval_idx++] = vowels[idx2];
- if ((idx + 1) < rounds) {
- idx3 = (((u_int)(dgst_raw[(2 * idx) + 1])) >> 4) & 15;
- idx4 = (((u_int)(dgst_raw[(2 * idx) + 1]))) & 15;
- retval[retval_idx++] = consonants[idx3];
- retval[retval_idx++] = '-';
- retval[retval_idx++] = consonants[idx4];
+ retval[j++] = vowels[idx0];
+ retval[j++] = consonants[idx1];
+ retval[j++] = vowels[idx2];
+ if ((i + 1) < rounds) {
+ idx3 = (((u_int)(dgst_raw[(2 * i) + 1])) >> 4) & 15;
+ idx4 = (((u_int)(dgst_raw[(2 * i) + 1]))) & 15;
+ retval[j++] = consonants[idx3];
+ retval[j++] = '-';
+ retval[j++] = consonants[idx4];
seed = ((seed * 5) +
- ((((u_int)(dgst_raw[2 * idx])) * 7) +
- ((u_int)(dgst_raw[(2 * idx) + 1])))) % 36;
+ ((((u_int)(dgst_raw[2 * i])) * 7) +
+ ((u_int)(dgst_raw[(2 * i) + 1])))) % 36;
}
} else {
idx0 = seed % 6;
idx1 = 16;
idx2 = seed / 6;
- retval[retval_idx++] = vowels[idx0];
- retval[retval_idx++] = consonants[idx1];
- retval[retval_idx++] = vowels[idx2];
+ retval[j++] = vowels[idx0];
+ retval[j++] = consonants[idx1];
+ retval[j++] = vowels[idx2];
}
}
- retval[retval_idx++] = 'x';
- retval[retval_idx++] = '\0';
+ retval[j++] = 'x';
+ retval[j++] = '\0';
return retval;
}
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
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)
{
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