Adds a test for the function sha256_hkdf.
Signed-off-by: Philippe Reynes philippe.reynes@softathome.com --- test/lib/Makefile | 1 + test/lib/test_sha256_hkdf.c | 104 ++++++++++++++++++++++++++++++++++++ 2 files changed, 105 insertions(+) create mode 100644 test/lib/test_sha256_hkdf.c
diff --git a/test/lib/Makefile b/test/lib/Makefile index 4c0abcba81a..24ce6ed8f00 100644 --- a/test/lib/Makefile +++ b/test/lib/Makefile @@ -25,6 +25,7 @@ obj-$(CONFIG_UT_LIB_ASN1) += asn1.o obj-$(CONFIG_UT_LIB_RSA) += rsa.o obj-$(CONFIG_AES) += test_aes.o obj-$(CONFIG_SHA256) += test_sha256_hmac.o +obj-$(CONFIG_HKDF_MBEDTLS) += test_sha256_hkdf.o obj-$(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_hkdf.c b/test/lib/test_sha256_hkdf.c new file mode 100644 index 00000000000..ca173a13afc --- /dev/null +++ b/test/lib/test_sha256_hkdf.c @@ -0,0 +1,104 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2024 Philippe Reynes philippe.reynes@softathome.com + * + * Unit tests for sha256_hkdf functions + */ + +#include <command.h> +#include <test/lib.h> +#include <test/test.h> +#include <test/ut.h> +#include <u-boot/sha256.h> + +struct test_sha256_hkdf_s { + unsigned char *salt; + int saltlen; + unsigned char *ikm; + int ikmlen; + unsigned char *info; + int infolen; + unsigned char *expected; + int expectedlen; +}; + +/* + * data comes from: + * https://www.rfc-editor.org/rfc/rfc5869 + */ +static unsigned char salt_test1[] = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, + 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c }; + +static unsigned char ikm_test1[] = { + 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, + 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b }; + +static unsigned char info_test1[] = { + 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9 }; + +static unsigned char expected_test1[] = { + 0x3c, 0xb2, 0x5f, 0x25, 0xfa, 0xac, 0xd5, 0x7a, + 0x90, 0x43, 0x4f, 0x64, 0xd0, 0x36, 0x2f, 0x2a, + 0x2d, 0x2d, 0x0a, 0x90, 0xcf, 0x1a, 0x5a, 0x4c, + 0x5d, 0xb0, 0x2d, 0x56, 0xec, 0xc4, 0xc5, 0xbf, + 0x34, 0x00, 0x72, 0x08, 0xd5, 0xb8, 0x87, 0x18, + 0x58, 0x65 }; + +static struct test_sha256_hkdf_s test_sha256_hkdf[] = { + { + .salt = salt_test1, + .saltlen = sizeof(salt_test1), + .ikm = ikm_test1, + .ikmlen = sizeof(ikm_test1), + .info = info_test1, + .infolen = sizeof(info_test1), + .expected = expected_test1, + .expectedlen = sizeof(expected_test1), + }, +}; + +static int _lib_test_sha256_hkdf_run(struct unit_test_state *uts, + unsigned char *salt, int saltlen, + unsigned char *ikm, int ikmlen, + unsigned char *info, int infolen, + unsigned char *expected, int expectedlen) +{ + unsigned char output[64]; + + sha256_hkdf(salt, saltlen, ikm, ikmlen, info, infolen, output, expectedlen); + ut_asserteq_mem(expected, output, expectedlen); + + return 0; +} + +static int lib_test_sha256_hkdf_run(struct unit_test_state *uts, + struct test_sha256_hkdf_s *test) +{ + unsigned char *salt = test->salt; + int saltlen = test->saltlen; + unsigned char *ikm = test->ikm; + int ikmlen = test->ikmlen; + unsigned char *info = test->info; + int infolen = test->infolen; + unsigned char *expected = test->expected; + int expectedlen = test->expectedlen; + + return _lib_test_sha256_hkdf_run(uts, salt, saltlen, ikm, ikmlen, + info, infolen, expected, expectedlen); +} + +static int lib_test_sha256_hkdf(struct unit_test_state *uts) +{ + int i, ret = 0; + + for (i = 0; i < ARRAY_SIZE(test_sha256_hkdf); i++) { + ret = lib_test_sha256_hkdf_run(uts, &test_sha256_hkdf[i]); + if (ret) + break; + } + + return ret; +} + +LIB_TEST(lib_test_sha256_hkdf, 0);