From 0fe5f3c5d743a7e4c63580a67066935f9e23a2f4 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Thu, 17 Nov 2016 17:03:21 +0100 Subject: core: add "khash" API to src/basic/ (as wrapper around kernel AF_ALG) Let's take inspiration from bluez's ELL library, and let's move our cryptographic primitives away from libgcrypt and towards the kernel's AF_ALG cryptographic userspace API. In the long run we should try to remove the dependency on libgcrypt, in favour of using only the kernel's own primitives, however this is unlikely to happen anytime soon, as the kernel does not provide Elliptic Curve APIs to userspace at this time, and we need them for the DNSSEC cryptographic. This commit only covers hashing for now, symmetric encryption/decryption or even asymetric encryption/decryption is not available for now. "khash" is little more than a lightweight wrapper around the kernel's AF_ALG socket API. --- src/test/test-hash.c | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 src/test/test-hash.c (limited to 'src/test/test-hash.c') diff --git a/src/test/test-hash.c b/src/test/test-hash.c new file mode 100644 index 0000000000..1972b94cfe --- /dev/null +++ b/src/test/test-hash.c @@ -0,0 +1,82 @@ +/*** + This file is part of systemd. + + Copyright 2016 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see . +***/ + +#include "alloc-util.h" +#include "log.h" +#include "string-util.h" +#include "khash.h" + +int main(int argc, char *argv[]) { + _cleanup_(khash_unrefp) khash *h = NULL, *copy = NULL; + _cleanup_free_ char *s = NULL; + + log_set_max_level(LOG_DEBUG); + + assert_se(khash_new(&h, NULL) == -EINVAL); + assert_se(khash_new(&h, "") == -EINVAL); + assert_se(khash_new(&h, "foobar") == -EOPNOTSUPP); + + assert_se(khash_new(&h, "sha256") >= 0); + assert_se(khash_get_size(h) == 32); + assert_se(streq(khash_get_algorithm(h), "sha256")); + + assert_se(khash_digest_string(h, &s) >= 0); + assert_se(streq(s, "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855")); + s = mfree(s); + + assert_se(khash_put(h, "foobar", 6) >= 0); + assert_se(khash_digest_string(h, &s) >= 0); + assert_se(streq(s, "c3ab8ff13720e8ad9047dd39466b3c8974e592c2fa383d4a3960714caef0c4f2")); + s = mfree(s); + + assert_se(khash_put(h, "piep", 4) >= 0); + assert_se(khash_digest_string(h, &s) >= 0); + assert_se(streq(s, "f114d872b5ea075d3be9040d0b7a429514b3f9324a8e8e3dc3fb24c34ee56bea")); + s = mfree(s); + + assert_se(khash_put(h, "foo", 3) >= 0); + assert_se(khash_dup(h, ©) >= 0); + + assert_se(khash_put(h, "bar", 3) >= 0); + assert_se(khash_put(copy, "bar", 3) >= 0); + + assert_se(khash_digest_string(h, &s) >= 0); + assert_se(streq(s, "c3ab8ff13720e8ad9047dd39466b3c8974e592c2fa383d4a3960714caef0c4f2")); + s = mfree(s); + + assert_se(khash_digest_string(copy, &s) >= 0); + assert_se(streq(s, "c3ab8ff13720e8ad9047dd39466b3c8974e592c2fa383d4a3960714caef0c4f2")); + s = mfree(s); + + h = khash_unref(h); + + assert_se(khash_new_with_key(&h, "hmac(sha256)", "quux", 4) >= 0); + assert_se(khash_get_size(h) == 32); + assert_se(streq(khash_get_algorithm(h), "hmac(sha256)")); + + assert_se(khash_digest_string(h, &s) >= 0); + assert_se(streq(s, "abed9f8218ab473f77218a6a7d39abf1d21fa46d0700c4898e330ba88309d5ae")); + s = mfree(s); + + assert_se(khash_put(h, "foobar", 6) >= 0); + assert_se(khash_digest_string(h, &s) >= 0); + assert_se(streq(s, "33f6c70a60db66007d5325d5d1dea37c371354e5b83347a59ad339ce9f4ba3dc")); + + return 0; +} -- cgit v1.2.3-54-g00ecf