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lib/crypto: tests: Add KUnit tests for NH

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Add some simple KUnit tests for the nh() function.

These replace the test coverage which will be lost by removing the
nhpoly1305 crypto_shash.

Note that the NH code also continues to be tested indirectly as well,
via the tests for the "adiantum(xchacha12,aes)" crypto_skcipher.

Link: https://lore.kernel.org/r/20251211011846.8179-3-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
This commit is contained in:
Eric Biggers
2025-12-10 17:18:34 -08:00
parent 14e15c71d7
commit 7246fe6cd6
5 changed files with 390 additions and 0 deletions
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43
lib/crypto/tests/nh_kunit.c Normal file
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2025 Google LLC
*/
#include <crypto/nh.h>
#include <kunit/test.h>
#include "nh-testvecs.h"
static void test_nh(struct kunit *test)
{
u32 *key = kunit_kmalloc(test, NH_KEY_BYTES, GFP_KERNEL);
__le64 hash[NH_NUM_PASSES];
KUNIT_ASSERT_NOT_NULL(test, key);
memcpy(key, nh_test_key, NH_KEY_BYTES);
le32_to_cpu_array(key, NH_KEY_WORDS);
nh(key, nh_test_msg, 16, hash);
KUNIT_ASSERT_MEMEQ(test, hash, nh_test_val16, NH_HASH_BYTES);
nh(key, nh_test_msg, 96, hash);
KUNIT_ASSERT_MEMEQ(test, hash, nh_test_val96, NH_HASH_BYTES);
nh(key, nh_test_msg, 256, hash);
KUNIT_ASSERT_MEMEQ(test, hash, nh_test_val256, NH_HASH_BYTES);
nh(key, nh_test_msg, 1024, hash);
KUNIT_ASSERT_MEMEQ(test, hash, nh_test_val1024, NH_HASH_BYTES);
}
static struct kunit_case nh_test_cases[] = {
KUNIT_CASE(test_nh),
{},
};
static struct kunit_suite nh_test_suite = {
.name = "nh",
.test_cases = nh_test_cases,
};
kunit_test_suite(nh_test_suite);
MODULE_DESCRIPTION("KUnit tests for NH");
MODULE_LICENSE("GPL");