[PATCH v2 3/5] test: lib: add test for sha256_hamc

[Raymond Mao]

Hi Philippe,

Typo  "sha256_hamc" in the subject line.

On Wed, 4 Dec 2024 at 12:54, Philippe Reynes <philippe.reynes at softathome.com>
wrote:

> Adds a test for the function sha256_hmac
>
> Signed-off-by: Philippe Reynes <philippe.reynes at softathome.com>
> ---
>  test/lib/Makefile           |   1 +
>  test/lib/test_sha256_hmac.c | 108 ++++++++++++++++++++++++++++++++++++
>  2 files changed, 109 insertions(+)
>  create mode 100644 test/lib/test_sha256_hmac.c
>
> diff --git a/test/lib/Makefile b/test/lib/Makefile
> index f516d001747..5aad81d5a8a 100644
> --- a/test/lib/Makefile
> +++ b/test/lib/Makefile
> @@ -24,6 +24,7 @@ obj-$(CONFIG_ERRNO_STR) += test_errno_str.o
>  obj-$(CONFIG_UT_LIB_ASN1) += asn1.o
>  obj-$(CONFIG_UT_LIB_RSA) += rsa.o
>  obj-$(CONFIG_AES) += test_aes.o
> +obj-$(CONFIG_SHA256_MBEDTLS) += test_sha256_hmac.o
>  obj-$(CONFIG_GETOPT) += getopt.o
>  obj-$(CONFIG_CRC8) += test_crc8.o
>  obj-$(CONFIG_UT_LIB_CRYPT) += test_crypt.o
> diff --git a/test/lib/test_sha256_hmac.c b/test/lib/test_sha256_hmac.c
> new file mode 100644
> index 00000000000..473922bd9b0
> --- /dev/null
> +++ b/test/lib/test_sha256_hmac.c
> @@ -0,0 +1,108 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Copyright (c) 2024 Philippe Reynes <philippe.reynes at softathome.com>
> + *
> + * Unit tests for sha256_hmac functions
> + */
> +
> +#include <command.h>
> +#include <test/lib.h>
> +#include <test/test.h>
> +#include <test/ut.h>
> +#include <u-boot/sha256.h>
> +
> +struct test_sha256_hmac_s {
> +       unsigned char *key;
> +       int keylen;
> +       unsigned char *input;
> +       int ilen;
> +       unsigned char *expected;
> +};
> +
> +/*
> + * data comes from:
> + * https://datatracker.ietf.org/doc/html/rfc4231
> + */
> +static unsigned char key_test1[] = {
> +       0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
> +       0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b };
> +
> +static unsigned char input_test1[] = {
> +       0x48, 0x69, 0x20, 0x54, 0x68, 0x65, 0x72, 0x65 };
> +
> +static unsigned char expected_test1[] = {
> +       0xb0, 0x34, 0x4c, 0x61, 0xd8, 0xdb, 0x38, 0x53,
> +       0x5c, 0xa8, 0xaf, 0xce, 0xaf, 0x0b, 0xf1, 0x2b,
> +       0x88, 0x1d, 0xc2, 0x00, 0xc9, 0x83, 0x3d, 0xa7,
> +       0x26, 0xe9, 0x37, 0x6c, 0x2e, 0x32, 0xcf, 0xf7 };
> +
> +static unsigned char key_test2[] = { 0x4a, 0x65, 0x66, 0x65 };
> +
> +static unsigned char input_test2[] = {
> +       0x77, 0x68, 0x61, 0x74, 0x20, 0x64, 0x6f, 0x20,
> +       0x79, 0x61, 0x20, 0x77, 0x61, 0x6e, 0x74, 0x20,
> +       0x66, 0x6f, 0x72, 0x20, 0x6e, 0x6f, 0x74, 0x68,
> +       0x69, 0x6e, 0x67, 0x3f };
> +
> +static unsigned char expected_test2[] = {
> +       0x5b, 0xdc, 0xc1, 0x46, 0xbf, 0x60, 0x75, 0x4e,
> +       0x6a, 0x04, 0x24, 0x26, 0x08, 0x95, 0x75, 0xc7,
> +       0x5a, 0x00, 0x3f, 0x08, 0x9d, 0x27, 0x39, 0x83,
> +       0x9d, 0xec, 0x58, 0xb9, 0x64, 0xec, 0x38, 0x43 };
> +
> +static struct test_sha256_hmac_s test_sha256_hmac[] = {
> +       {
> +               .key = key_test1,
> +               .keylen = sizeof(key_test1),
> +               .input = input_test1,
> +               .ilen = sizeof(input_test1),
> +               .expected = expected_test1,
> +       },
> +       {
> +               .key = key_test2,
> +               .keylen = sizeof(key_test2),
> +               .input = input_test2,
> +               .ilen = sizeof(input_test2),
> +               .expected = expected_test2,
> +       },
> +};
> +
> +static int _lib_test_sha256_hmac_run(struct unit_test_state *uts,
> +                                    unsigned char *key, int keylen,
> +                                    unsigned char *input, int ilen,
> +                                    unsigned char *expected)
> +{
> +       unsigned char output[32];
> +
> +       sha256_hmac(key, keylen, input, ilen, output);
> +       ut_asserteq_mem(expected, output, 32);
> +
> +       return 0;
> +}
> +
> +static int lib_test_sha256_hmac_run(struct unit_test_state *uts,
> +                                   struct test_sha256_hmac_s *test)
> +{
> +       unsigned char *key = test->key;
> +       int keylen = test->keylen;
> +       unsigned char *input = test->input;
> +       int ilen = test->ilen;
> +       unsigned char *expected = test->expected;
> +
> +       return _lib_test_sha256_hmac_run(uts, key, keylen, input, ilen,
> expected);
> +}
> +
> +static int lib_test_sha256_hmac(struct unit_test_state *uts)
> +{
> +       int i, ret = 0;
> +
> +       for (i = 0; i < ARRAY_SIZE(test_sha256_hmac); i++) {
> +               ret = lib_test_sha256_hmac_run(uts, &test_sha256_hmac[i]);
> +               if (ret)
> +                       break;
> +       }
> +
> +       return ret;
> +}
> +
> +LIB_TEST(lib_test_sha256_hmac, 0);
> --
> 2.25.1
>

Regards,
Raymond