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/* Copyright (C) The libssh2 project and its contributors.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include "runner.h"
static const char *EXPECTED_RSA_HOSTKEY =
"AAAAB3NzaC1yc2EAAAABIwAAAQEArrr/JuJmaZligyfS8vcNur+mWR2ddDQtVdhHzdKU"
"UoR6/Om6cvxpe61H1YZO1xCpLUBXmkki4HoNtYOpPB2W4V+8U4BDeVBD5crypEOE1+7B"
"Am99fnEDxYIOZq2/jTP0yQmzCpWYS3COyFmkOL7sfX1wQMeW5zQT2WKcxC6FSWbhDqrB"
"eNEGi687hJJoJ7YXgY/IdiYW5NcOuqRSWljjGS3dAJsHHWk4nJbhjEDXbPaeduMAwQU9"
"i6ELfP3r+q6wdu0P4jWaoo3De1aYxnToV/ldXykpipON4NPamsb6Ph2qlJQKypq7J4iQ"
"gkIIbCU1A31+4ExvcIVoxLQw/aTSbw==";
static const char *EXPECTED_ECDSA_HOSTKEY =
"AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBC+/syyeKJD9dC2ZH"
"9Q7iJGReR4YM3rUCMsSynkyXojdfSClGCMY7JvWlt30ESjYvxoTfSRGx6WvaqYK/vPoYQ4=";
static const char *EXPECTED_ED25519_HOSTKEY =
"AAAAC3NzaC1lZDI1NTE5AAAAIIxtdyg2ZRXE70UwyPVUH3UyfDBV8GX5cPF636P6hjom";
#if LIBSSH2_MD5
static const char *EXPECTED_RSA_MD5_HASH_DIGEST =
"0C0ED1A5BB10275F76924CE187CE5C5E";
#endif
static const char *EXPECTED_RSA_SHA1_HASH_DIGEST =
"F3CD59E2913F4422B80F7B0A82B2B89EAE449387";
static const char *EXPECTED_RSA_SHA256_HASH_DIGEST =
"92E3DA49DF3C7F99A828F505ED8239397A5D1F62914459760F878F7510F563A3";
#if LIBSSH2_MD5
static const char *EXPECTED_ECDSA_MD5_HASH_DIGEST =
"0402E4D897580BBC911379CBD88BCD3D";
#endif
static const char *EXPECTED_ECDSA_SHA1_HASH_DIGEST =
"12FDAD1E3B31B10BABB00F2A8D1B9A62C326BD2F";
static const char *EXPECTED_ECDSA_SHA256_HASH_DIGEST =
"56FCD975B166C3F0342D0036E44C311A86C0EAE40713B53FC776369BAE7F5264";
static const char *EXPECTED_ED25519_SHA256_HASH_DIGEST =
"2638B020F6121FA750A7F4754B718419F621814C6E779D68ADF26AA68814ADDF";
#if LIBSSH2_MD5
static const size_t MD5_HASH_SIZE = 16;
#endif
static const size_t SHA1_HASH_SIZE = 20;
static const size_t SHA256_HASH_SIZE = 32;
static void calculate_digest(const char *hash, size_t hash_len, char *buffer,
size_t buffer_len)
{
size_t i;
char *p = buffer;
char *end = buffer + buffer_len;
for(i = 0; i < hash_len && p < end; ++i) {
p += snprintf(p, (size_t)(end - p), "%02X", (unsigned char)hash[i]);
}
}
int test(LIBSSH2_SESSION *session)
{
char buf[BUFSIZ];
const char *hostkey;
#if LIBSSH2_MD5
const char *md5_hash;
#endif
const char *sha1_hash;
const char *sha256_hash;
int type;
size_t len;
/* these are the host keys under test, they are currently unused */
(void)EXPECTED_RSA_HOSTKEY;
(void)EXPECTED_ECDSA_HOSTKEY;
(void)EXPECTED_ED25519_HOSTKEY;
hostkey = libssh2_session_hostkey(session, &len, &type);
if(!hostkey) {
print_last_session_error("libssh2_session_hostkey");
return 1;
}
if(type == LIBSSH2_HOSTKEY_TYPE_ED25519) {
sha256_hash = libssh2_hostkey_hash(session,
LIBSSH2_HOSTKEY_HASH_SHA256);
if(!sha256_hash) {
print_last_session_error(
"libssh2_hostkey_hash(LIBSSH2_HOSTKEY_HASH_SHA256)");
return 1;
}
calculate_digest(sha256_hash, SHA256_HASH_SIZE, buf, BUFSIZ);
if(strcmp(buf, EXPECTED_ED25519_SHA256_HASH_DIGEST) != 0) {
fprintf(stderr,
"ED25519 SHA256 hash not as expected - digest %s != %s\n",
buf, EXPECTED_ED25519_SHA256_HASH_DIGEST);
return 1;
}
}
else if(type == LIBSSH2_HOSTKEY_TYPE_ECDSA_256) {
#if LIBSSH2_MD5
md5_hash = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
if(!md5_hash) {
print_last_session_error(
"libssh2_hostkey_hash(LIBSSH2_HOSTKEY_HASH_MD5)");
return 1;
}
calculate_digest(md5_hash, MD5_HASH_SIZE, buf, BUFSIZ);
if(strcmp(buf, EXPECTED_ECDSA_MD5_HASH_DIGEST) != 0) {
fprintf(stderr,
"ECDSA MD5 hash not as expected - digest %s != %s\n",
buf, EXPECTED_ECDSA_MD5_HASH_DIGEST);
return 1;
}
#endif
sha1_hash = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
if(!sha1_hash) {
print_last_session_error(
"libssh2_hostkey_hash(LIBSSH2_HOSTKEY_HASH_SHA1)");
return 1;
}
calculate_digest(sha1_hash, SHA1_HASH_SIZE, buf, BUFSIZ);
if(strcmp(buf, EXPECTED_ECDSA_SHA1_HASH_DIGEST) != 0) {
fprintf(stderr,
"ECDSA SHA1 hash not as expected - digest %s != %s\n",
buf, EXPECTED_ECDSA_SHA1_HASH_DIGEST);
return 1;
}
sha256_hash = libssh2_hostkey_hash(session,
LIBSSH2_HOSTKEY_HASH_SHA256);
if(!sha256_hash) {
print_last_session_error(
"libssh2_hostkey_hash(LIBSSH2_HOSTKEY_HASH_SHA256)");
return 1;
}
calculate_digest(sha256_hash, SHA256_HASH_SIZE, buf, BUFSIZ);
if(strcmp(buf, EXPECTED_ECDSA_SHA256_HASH_DIGEST) != 0) {
fprintf(stderr,
"ECDSA SHA256 hash not as expected - digest %s != %s\n",
buf, EXPECTED_ECDSA_SHA256_HASH_DIGEST);
return 1;
}
}
else if(type == LIBSSH2_HOSTKEY_TYPE_RSA) {
#if LIBSSH2_MD5
md5_hash = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
if(!md5_hash) {
print_last_session_error(
"libssh2_hostkey_hash(LIBSSH2_HOSTKEY_HASH_MD5)");
return 1;
}
calculate_digest(md5_hash, MD5_HASH_SIZE, buf, BUFSIZ);
if(strcmp(buf, EXPECTED_RSA_MD5_HASH_DIGEST) != 0) {
fprintf(stderr,
"MD5 hash not as expected - digest %s != %s\n",
buf, EXPECTED_RSA_MD5_HASH_DIGEST);
return 1;
}
#endif
sha1_hash = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
if(!sha1_hash) {
print_last_session_error(
"libssh2_hostkey_hash(LIBSSH2_HOSTKEY_HASH_SHA1)");
return 1;
}
calculate_digest(sha1_hash, SHA1_HASH_SIZE, buf, BUFSIZ);
if(strcmp(buf, EXPECTED_RSA_SHA1_HASH_DIGEST) != 0) {
fprintf(stderr,
"SHA1 hash not as expected - digest %s != %s\n",
buf, EXPECTED_RSA_SHA1_HASH_DIGEST);
return 1;
}
sha256_hash = libssh2_hostkey_hash(session,
LIBSSH2_HOSTKEY_HASH_SHA256);
if(!sha256_hash) {
print_last_session_error(
"libssh2_hostkey_hash(LIBSSH2_HOSTKEY_HASH_SHA256)");
return 1;
}
calculate_digest(sha256_hash, SHA256_HASH_SIZE, buf, BUFSIZ);
if(strcmp(buf, EXPECTED_RSA_SHA256_HASH_DIGEST) != 0) {
fprintf(stderr,
"SHA256 hash not as expected - digest %s != %s\n",
buf, EXPECTED_RSA_SHA256_HASH_DIGEST);
return 1;
}
}
else {
fprintf(stderr, "Unexpected type of hostkey: %i\n", type);
return 1;
}
return 0;
}
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