tests: Add torture_hashes for pubkey hashes

Signed-off-by: Jan-Niklas Burfeind <libssh@aiyionpri.me>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
(cherry picked from commit 9510a53)

Author: Jan-Niklas Burfeind

tests/unittests/CMakeLists.txt

@@ -32,6 +32,8 @@ target_compile_options(torture_isipaddr PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
 add_cmocka_test(torture_knownhosts_parsing torture_knownhosts_parsing.c ${TORTURE_LIBRARY})
 target_compile_options(torture_knownhosts_parsing PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
 
+add_cmocka_test(torture_hashes torture_hashes.c ${TORTURE_LIBRARY})
+target_compile_options(torture_hashes PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
 
 if (CMAKE_USE_PTHREADS_INIT)
     add_cmocka_test(torture_rand torture_rand.c ${TORTURE_LIBRARY})

tests/unittests/torture_hashes.c

@@ -0,0 +1,118 @@
+#include "config.h"
+
+#define LIBSSH_STATIC
+
+#include "torture.h"
+#include "torture_key.h"
+#include "legacy.c"
+#include "dh.c"
+
+static int setup_rsa_key(void **state)
+{
+    int rc=0;
+    enum ssh_keytypes_e type;
+    char *b64_key, *p;
+    ssh_key key;
+
+    const char *q;
+
+    b64_key = strdup(torture_get_testkey_pub(SSH_KEYTYPE_RSA, 0));
+    assert_true(b64_key != NULL);
+
+    q = p = b64_key;
+    while (*p != ' ') p++;
+    *p = '\0';
+
+    type = ssh_key_type_from_name(q);
+    assert_true(type == SSH_KEYTYPE_RSA);
+
+    q = ++p;
+    while (*p != ' ') p++;
+    *p = '\0';
+
+    rc = ssh_pki_import_pubkey_base64(q, type, &key);
+    assert_true(rc == 0);
+
+    free(b64_key);
+    *state = key;
+
+    return 0;
+}
+
+static int teardown(void **state)
+{
+    ssh_key_free(*state);
+    return 0;
+}
+
+static void torture_md5_hash(void **state)
+{
+    ssh_key pubkey = *state;
+    unsigned char *hash = NULL;
+    char *hexa = NULL;
+    size_t hlen;
+    int rc = 0;
+
+    rc = ssh_get_publickey_hash(pubkey, SSH_PUBLICKEY_HASH_MD5, &hash, &hlen);
+    assert_true(rc == 0);
+
+    hexa = ssh_get_hexa(hash, hlen);
+    assert_string_equal(hexa,
+                        "50:15:a0:9b:92:bf:33:1c:01:c5:8c:fe:18:fa:ce:78");
+
+    ssh_string_free_char(hexa);
+}
+
+static void torture_sha1_hash(void **state)
+{
+    ssh_key pubkey = *state;
+    unsigned char *hash = NULL;
+    char *sha1 = NULL;
+    int rc = 0;
+    size_t hlen;
+
+    rc = ssh_get_publickey_hash(pubkey, SSH_PUBLICKEY_HASH_SHA1, &hash, &hlen);
+    assert_true(rc == 0);
+
+    sha1 = ssh_get_b64_unpadded(hash, hlen);
+    assert_string_equal(sha1, "6wP+houujQmxLBiFugTcoeoODCM");
+
+    ssh_string_free_char(sha1);
+}
+
+static void torture_sha256_hash(void **state)
+{
+    ssh_key pubkey = *state;
+    unsigned char *hash = NULL;
+    char *sha256 = NULL;
+    int rc = 0;
+    size_t hlen;
+
+    rc = ssh_get_publickey_hash(pubkey, SSH_PUBLICKEY_HASH_SHA256, &hash, &hlen);
+    assert_true(rc == 0);
+
+    sha256 = ssh_get_b64_unpadded(hash, hlen);
+    assert_string_equal(sha256, "jXstVLLe84fSDo1kEYGn6iumnPCSorhaiWxnJz8VTII");
+
+    ssh_string_free_char(sha256);
+
+}
+
+int torture_run_tests(void) {
+    int rc;
+    struct CMUnitTest tests[] = {
+        cmocka_unit_test_setup_teardown(torture_md5_hash,
+                                        setup_rsa_key,
+                                        teardown),
+        cmocka_unit_test_setup_teardown(torture_sha1_hash,
+                                        setup_rsa_key,
+                                        teardown),
+        cmocka_unit_test_setup_teardown(torture_sha256_hash,
+                                        setup_rsa_key,
+                                        teardown),
+    };
+
+    torture_filter_tests(tests);
+    rc = cmocka_run_group_tests(tests, NULL, NULL);
+    return rc;
+}