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dh: Add SSH_PUBLICKEY_HASH_SHA256 to ssh_get_publickey_hash()

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Signed-off-by: Jan-Niklas Burfeind <libssh@aiyionpri.me>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
(cherry picked from commit 1499b38aef)
This commit is contained in:
Jan-Niklas Burfeind
2018-08-09 11:00:00 +02:00
committed by Andreas Schneider
parent c977a97093
commit f3f140e65f
2 changed files with 25 additions and 1 deletions
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3
include/libssh/libssh.h
View File

@@ -444,7 +444,8 @@ LIBSSH_API int ssh_get_publickey(ssh_session session, ssh_key *key);
enum ssh_publickey_hash_type { enum ssh_publickey_hash_type {
SSH_PUBLICKEY_HASH_SHA1, SSH_PUBLICKEY_HASH_SHA1,
SSH_PUBLICKEY_HASH_MD5 SSH_PUBLICKEY_HASH_MD5,
SSH_PUBLICKEY_HASH_SHA256
}; };
LIBSSH_API int ssh_get_publickey_hash(const ssh_key key, LIBSSH_API int ssh_get_publickey_hash(const ssh_key key,
enum ssh_publickey_hash_type type, enum ssh_publickey_hash_type type,

23
src/dh.c
View File

@@ -1039,6 +1039,29 @@ int ssh_get_publickey_hash(const ssh_key key,
*hlen = SHA_DIGEST_LEN; *hlen = SHA_DIGEST_LEN;
} }
break; break;
case SSH_PUBLICKEY_HASH_SHA256:
{
SHA256CTX ctx;
h = malloc(SHA256_DIGEST_LEN);
if (h == NULL) {
rc = -1;
goto out;
}
ctx = sha256_init();
if (ctx == NULL) {
free(h);
rc = -1;
goto out;
}
sha256_update(ctx, ssh_string_data(blob), ssh_string_len(blob));
sha256_final(h, ctx);
*hlen = SHA256_DIGEST_LEN;
}
break;
case SSH_PUBLICKEY_HASH_MD5: case SSH_PUBLICKEY_HASH_MD5:
{ {
MD5CTX ctx; MD5CTX ctx;