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lib/crypto: tests: Add KUnit tests for BLAKE2b

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Add a KUnit test suite for the BLAKE2b library API, mirroring the
BLAKE2s test suite very closely.

As with the BLAKE2s test suite, a benchmark is included.

Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-9-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
This commit is contained in:
Eric Biggers
2025-10-17 21:31:04 -07:00
parent 2dbb6f4a25
commit 6401fd334d
5 changed files with 501 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
lib/crypto/tests/Kconfig
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@@ -1,5 +1,14 @@
# SPDX-License-Identifier: GPL-2.0-or-later
config CRYPTO_LIB_BLAKE2B_KUNIT_TEST
tristate "KUnit tests for BLAKE2b" if !KUNIT_ALL_TESTS
depends on KUNIT
default KUNIT_ALL_TESTS || CRYPTO_SELFTESTS
select CRYPTO_LIB_BENCHMARK_VISIBLE
select CRYPTO_LIB_BLAKE2B
help
KUnit tests for the BLAKE2b cryptographic hash function.
config CRYPTO_LIB_BLAKE2S_KUNIT_TEST
tristate "KUnit tests for BLAKE2s" if !KUNIT_ALL_TESTS
depends on KUNIT

1
lib/crypto/tests/Makefile
View File

@@ -1,5 +1,6 @@
# SPDX-License-Identifier: GPL-2.0-or-later
obj-$(CONFIG_CRYPTO_LIB_BLAKE2B_KUNIT_TEST) += blake2b_kunit.o
obj-$(CONFIG_CRYPTO_LIB_BLAKE2S_KUNIT_TEST) += blake2s_kunit.o
obj-$(CONFIG_CRYPTO_LIB_CURVE25519_KUNIT_TEST) += curve25519_kunit.o
obj-$(CONFIG_CRYPTO_LIB_MD5_KUNIT_TEST) += md5_kunit.o

342
lib/crypto/tests/blake2b-testvecs.h Normal file
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@@ -0,0 +1,342 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
/* This file was generated by: ./scripts/crypto/gen-hash-testvecs.py blake2b */
static const struct {
size_t data_len;
u8 digest[BLAKE2B_HASH_SIZE];
} hash_testvecs[] = {
{
.data_len = 0,
.digest = {
0x78, 0x6a, 0x02, 0xf7, 0x42, 0x01, 0x59, 0x03,
0xc6, 0xc6, 0xfd, 0x85, 0x25, 0x52, 0xd2, 0x72,
0x91, 0x2f, 0x47, 0x40, 0xe1, 0x58, 0x47, 0x61,
0x8a, 0x86, 0xe2, 0x17, 0xf7, 0x1f, 0x54, 0x19,
0xd2, 0x5e, 0x10, 0x31, 0xaf, 0xee, 0x58, 0x53,
0x13, 0x89, 0x64, 0x44, 0x93, 0x4e, 0xb0, 0x4b,
0x90, 0x3a, 0x68, 0x5b, 0x14, 0x48, 0xb7, 0x55,
0xd5, 0x6f, 0x70, 0x1a, 0xfe, 0x9b, 0xe2, 0xce,
},
},
{
.data_len = 1,
.digest = {
0x6f, 0x2e, 0xcc, 0x83, 0x53, 0xa3, 0x20, 0x16,
0x5b, 0xda, 0xd0, 0x04, 0xd3, 0xcb, 0xe4, 0x37,
0x5b, 0xf0, 0x84, 0x36, 0xe1, 0xad, 0x45, 0xcc,
0x4d, 0x7f, 0x09, 0x68, 0xb2, 0x62, 0x93, 0x7f,
0x72, 0x32, 0xe8, 0xa7, 0x2f, 0x1f, 0x6f, 0xc6,
0x14, 0xd6, 0x70, 0xae, 0x0c, 0xf0, 0xf3, 0xce,
0x64, 0x4d, 0x22, 0xdf, 0xc7, 0xa7, 0xf8, 0xa8,
0x18, 0x23, 0xd8, 0x6c, 0xaf, 0x65, 0xa2, 0x54,
},
},
{
.data_len = 2,
.digest = {
0x04, 0x13, 0xe2, 0x10, 0xbe, 0x65, 0xde, 0xce,
0x61, 0xa8, 0xe0, 0xd6, 0x35, 0xb1, 0xb8, 0x88,
0xd2, 0xea, 0x45, 0x3a, 0xe1, 0x8d, 0x94, 0xb5,
0x66, 0x06, 0x98, 0x96, 0x39, 0xf8, 0x0e, 0xcb,
0x34, 0xa6, 0xa8, 0x17, 0xfe, 0x56, 0xbc, 0xa9,
0x5e, 0x1b, 0xb1, 0xde, 0x3c, 0xc7, 0x78, 0x4f,
0x39, 0xc6, 0xfc, 0xa8, 0xb3, 0x27, 0x66, 0x3e,
0x4e, 0xb5, 0x5d, 0x08, 0x89, 0xee, 0xd1, 0xe0,
},
},
{
.data_len = 3,
.digest = {
0x2b, 0x4a, 0xa3, 0x4e, 0x2b, 0x7a, 0x47, 0x20,
0x30, 0x5b, 0x09, 0x17, 0x3a, 0xf4, 0xcc, 0xf0,
0xf7, 0x7b, 0x97, 0x68, 0x98, 0x9f, 0x4f, 0x09,
0x46, 0x25, 0xe7, 0xd6, 0x53, 0x6b, 0xf9, 0x68,
0x48, 0x12, 0x44, 0x8c, 0x9a, 0xc8, 0xd4, 0x42,
0xeb, 0x2c, 0x5f, 0x41, 0xba, 0x17, 0xd0, 0xc3,
0xad, 0xfd, 0xfb, 0x42, 0x33, 0xcb, 0x08, 0x5d,
0xd2, 0x5c, 0x3d, 0xde, 0x87, 0x4d, 0xd6, 0xe4,
},
},
{
.data_len = 16,
.digest = {
0xbf, 0x40, 0xf2, 0x38, 0x44, 0x8e, 0x24, 0x5e,
0xbc, 0x67, 0xbb, 0xf0, 0x10, 0x9a, 0x79, 0xbb,
0x36, 0x55, 0xce, 0xd2, 0xba, 0x04, 0x0d, 0xe8,
0x30, 0x29, 0x5c, 0x2a, 0xa6, 0x3a, 0x4f, 0x37,
0xac, 0x5f, 0xd4, 0x13, 0xa2, 0xf4, 0xfe, 0x80,
0x61, 0xd7, 0x58, 0x66, 0x0c, 0x7f, 0xa2, 0x56,
0x6b, 0x52, 0x7c, 0x22, 0x73, 0x7f, 0x17, 0xaa,
0x91, 0x5a, 0x22, 0x06, 0xd9, 0x00, 0x48, 0x12,
},
},
{
.data_len = 32,
.digest = {
0x41, 0x04, 0x65, 0x93, 0x81, 0x9a, 0x20, 0x0a,
0x00, 0x60, 0x00, 0x64, 0x4c, 0x04, 0x3d, 0xe0,
0x6b, 0x17, 0x0c, 0xe1, 0x0e, 0x28, 0x8b, 0xa0,
0x76, 0xd2, 0x79, 0xb0, 0x33, 0x60, 0x61, 0x27,
0xf2, 0x64, 0xf1, 0x8a, 0xe5, 0x3e, 0xaa, 0x37,
0x60, 0xad, 0x2d, 0x75, 0x13, 0xae, 0xd8, 0x9e,
0xec, 0xe0, 0xe4, 0x40, 0x2f, 0x59, 0x44, 0xb0,
0x66, 0x7a, 0x68, 0x38, 0xce, 0x21, 0x99, 0x2a,
},
},
{
.data_len = 48,
.digest = {
0x19, 0x6f, 0x9d, 0xc7, 0x87, 0x12, 0x5c, 0xa3,
0xe2, 0xd3, 0xf1, 0x82, 0xec, 0xf3, 0x55, 0x9c,
0x86, 0xd1, 0x6d, 0xde, 0xcf, 0x5b, 0xec, 0x4c,
0x43, 0x25, 0x85, 0x90, 0xef, 0xe8, 0xe3, 0x5f,
0x2c, 0x3a, 0x84, 0x07, 0xb8, 0x55, 0xfd, 0x5e,
0xa4, 0x45, 0xf2, 0xac, 0xe4, 0xbd, 0xc7, 0x96,
0x80, 0x59, 0x3e, 0xc9, 0xb1, 0x60, 0xb1, 0x2b,
0x17, 0x49, 0x7d, 0x3e, 0x7d, 0x4d, 0x70, 0x24,
},
},
{
.data_len = 49,
.digest = {
0x73, 0x72, 0xd5, 0x0a, 0x97, 0xb4, 0x7d, 0xdb,
0x05, 0x14, 0x8e, 0x40, 0xc2, 0x9a, 0x8a, 0x74,
0x4b, 0xda, 0x7e, 0xfc, 0x97, 0x57, 0x23, 0x39,
0xdc, 0x57, 0x09, 0x13, 0x24, 0xfc, 0xf3, 0x23,
0x55, 0x48, 0xdd, 0xe5, 0x07, 0x9a, 0x6f, 0x7b,
0x62, 0xea, 0x4d, 0x79, 0xb4, 0xb9, 0xc5, 0x86,
0xc0, 0x34, 0xd6, 0xd2, 0x6c, 0xc3, 0x94, 0xfb,
0x34, 0xd6, 0x62, 0xae, 0xb8, 0x99, 0xf1, 0x38,
},
},
{
.data_len = 63,
.digest = {
0x42, 0x3a, 0xe3, 0xa2, 0xae, 0x5a, 0x28, 0xce,
0xf1, 0x3c, 0x97, 0xc2, 0x34, 0xf6, 0xb5, 0x1e,
0xfc, 0x31, 0xb4, 0x04, 0x61, 0xb7, 0x54, 0x0b,
0x0d, 0x1a, 0x22, 0x9c, 0x04, 0x67, 0x5c, 0x4c,
0x75, 0x1b, 0x10, 0x0b, 0x99, 0xe2, 0xb1, 0x5e,
0x5d, 0x4b, 0x7a, 0xe6, 0xf6, 0xb5, 0x62, 0xee,
0x2d, 0x44, 0x57, 0xb2, 0x96, 0x73, 0x5e, 0xb9,
0x6a, 0xb2, 0xb3, 0x16, 0xa3, 0xd9, 0x6a, 0x60,
},
},
{
.data_len = 64,
.digest = {
0x50, 0xb9, 0xbe, 0xb2, 0x69, 0x07, 0x45, 0x5b,
0x59, 0xde, 0x8d, 0xbf, 0x08, 0xdc, 0x2e, 0x7f,
0x93, 0x29, 0xc1, 0x91, 0xe8, 0x74, 0x03, 0x89,
0x20, 0xfb, 0xb2, 0x4b, 0xe8, 0x68, 0x6f, 0xe1,
0xb4, 0x30, 0xbe, 0x11, 0x3c, 0x43, 0x19, 0x66,
0x72, 0x78, 0xb7, 0xf4, 0xe9, 0x09, 0x18, 0x4e,
0xae, 0x4a, 0x24, 0xe0, 0x6f, 0x44, 0x02, 0xe3,
0xfd, 0xda, 0xb3, 0x3e, 0x3c, 0x6d, 0x54, 0x2e,
},
},
{
.data_len = 65,
.digest = {
0xd6, 0xf2, 0xa9, 0x61, 0x3f, 0xce, 0x2a, 0x68,
0x19, 0x86, 0xff, 0xd1, 0xee, 0x89, 0x3b, 0xa4,
0x10, 0x9a, 0x91, 0x50, 0x35, 0x48, 0x9e, 0xf5,
0x9c, 0x95, 0xe0, 0xfb, 0x92, 0x0f, 0xa8, 0xf7,
0x6c, 0x43, 0x85, 0xf1, 0x6e, 0x11, 0x4e, 0x67,
0x78, 0xd7, 0x53, 0x25, 0x0c, 0xf8, 0xce, 0x38,
0x74, 0x08, 0xb0, 0x3c, 0x53, 0x20, 0x4d, 0xc4,
0x9a, 0xf5, 0x78, 0xe8, 0x41, 0x8f, 0xed, 0x1f,
},
},
{
.data_len = 127,
.digest = {
0xe8, 0xb2, 0xc5, 0xa7, 0xf5, 0xfa, 0xee, 0xa0,
0x57, 0xba, 0x58, 0xf9, 0x0a, 0xf2, 0x64, 0x16,
0xa8, 0xa6, 0x03, 0x85, 0x3b, 0xb8, 0x6f, 0xca,
0x76, 0xc3, 0xa1, 0x2b, 0xec, 0xef, 0xc4, 0x66,
0x11, 0xdf, 0x03, 0x85, 0x9d, 0x0c, 0x37, 0x7b,
0xa9, 0x7b, 0x44, 0xfb, 0x11, 0x8f, 0x3f, 0x71,
0xcd, 0x81, 0x43, 0x2e, 0x71, 0x5c, 0x54, 0x9f,
0xca, 0x0f, 0x01, 0x91, 0xca, 0xaa, 0x93, 0xe9,
},
},
{
.data_len = 128,
.digest = {
0x05, 0x8e, 0x9d, 0xdc, 0xe9, 0x36, 0x3e, 0x73,
0x63, 0x59, 0x69, 0x81, 0x0b, 0x8c, 0xc7, 0x9e,
0xcc, 0xe7, 0x9c, 0x19, 0x54, 0xa7, 0x2f, 0x86,
0xb5, 0xea, 0xae, 0x6d, 0xfe, 0x4e, 0x6e, 0x83,
0x8d, 0x1a, 0x1c, 0x70, 0x3f, 0x34, 0xa1, 0x04,
0x59, 0xd1, 0xbb, 0xaa, 0x58, 0xf7, 0xce, 0xfb,
0x86, 0x66, 0x22, 0xfc, 0x78, 0x74, 0x6e, 0x85,
0xf1, 0x59, 0x7d, 0x9e, 0x1c, 0x3b, 0xc6, 0x65,
},
},
{
.data_len = 129,
.digest = {
0x6b, 0x1f, 0x7c, 0x9a, 0x65, 0x7f, 0x09, 0x61,
0xe5, 0x04, 0x9a, 0xf1, 0x4b, 0x36, 0x8e, 0x41,
0x86, 0xcf, 0x86, 0x19, 0xd8, 0xc9, 0x34, 0x70,
0x67, 0xd1, 0x03, 0x72, 0x12, 0xf7, 0x27, 0x92,
0x2e, 0x3d, 0x2b, 0x54, 0x9a, 0x48, 0xa4, 0xc2,
0x61, 0xea, 0x6a, 0xe8, 0xdd, 0x07, 0x41, 0x85,
0x58, 0x6d, 0xcd, 0x12, 0x0d, 0xbc, 0xb1, 0x23,
0xb2, 0xdb, 0x24, 0x1f, 0xc4, 0xa7, 0xae, 0xda,
},
},
{
.data_len = 256,
.digest = {
0x50, 0xd8, 0xdc, 0xb2, 0x50, 0x24, 0x7a, 0x49,
0xb1, 0x00, 0x73, 0x16, 0x1f, 0xce, 0xf9, 0xe8,
0x77, 0x0a, 0x27, 0x74, 0xc7, 0xeb, 0xf0, 0x62,
0xb9, 0xf3, 0x24, 0xa6, 0x03, 0x18, 0x40, 0xde,
0x9b, 0x1d, 0xa8, 0xd0, 0xbf, 0x66, 0xa3, 0xc1,
0x31, 0x04, 0x95, 0xc7, 0xc3, 0xb7, 0x11, 0xe2,
0x1e, 0x31, 0x49, 0x98, 0x06, 0xab, 0xf0, 0xe6,
0x5c, 0xac, 0x88, 0x28, 0x0b, 0x3d, 0xb2, 0xc2,
},
},
{
.data_len = 511,
.digest = {
0xd4, 0x2b, 0x6b, 0x9e, 0xfc, 0x44, 0xc0, 0x90,
0x64, 0x77, 0x5d, 0xf3, 0x44, 0xb6, 0x92, 0x8f,
0x80, 0xe2, 0xe4, 0x9b, 0xaf, 0x49, 0x04, 0xea,
0x29, 0xf7, 0x4a, 0x33, 0x3f, 0xc7, 0x3b, 0xab,
0xa1, 0x71, 0x7f, 0xa2, 0x8e, 0x03, 0xa0, 0xd6,
0xa7, 0xcd, 0xe0, 0xf8, 0xd7, 0x3b, 0xa4, 0x0d,
0x84, 0x79, 0x12, 0x72, 0x3f, 0x8e, 0x48, 0x35,
0x76, 0x4f, 0x56, 0xe9, 0x21, 0x40, 0x19, 0xbe,
},
},
{
.data_len = 513,
.digest = {
0x84, 0xd4, 0xd8, 0x6c, 0x60, 0x3d, 0x6e, 0xfd,
0x84, 0xb7, 0xdf, 0xba, 0x13, 0x5e, 0x07, 0x94,
0x5b, 0x6b, 0x62, 0x1d, 0x82, 0x02, 0xa7, 0xb3,
0x21, 0xdf, 0x42, 0x20, 0x85, 0xa8, 0x6f, 0x30,
0xf7, 0x03, 0xba, 0x66, 0x0e, 0xa6, 0x42, 0x21,
0x37, 0xe8, 0xed, 0x5b, 0x22, 0xf5, 0x4e, 0xa5,
0xe5, 0x80, 0x1b, 0x47, 0xf0, 0x49, 0xb3, 0xe5,
0x6e, 0xd9, 0xd9, 0x95, 0x3d, 0x2e, 0x42, 0x13,
},
},
{
.data_len = 1000,
.digest = {
0x71, 0x17, 0xab, 0x93, 0xfe, 0x3b, 0xa4, 0xe6,
0xcb, 0xb0, 0xea, 0x95, 0xe7, 0x1a, 0x01, 0xc0,
0x12, 0x33, 0xfe, 0xcc, 0x79, 0x15, 0xae, 0x56,
0xd2, 0x70, 0x44, 0x60, 0x54, 0x42, 0xa8, 0x69,
0x7e, 0xc3, 0x90, 0xa0, 0x0c, 0x63, 0x39, 0xff,
0x55, 0x53, 0xb8, 0x46, 0xef, 0x06, 0xcb, 0xba,
0x73, 0xf4, 0x76, 0x22, 0xf1, 0x60, 0x98, 0xbc,
0xbf, 0x76, 0x95, 0x85, 0x13, 0x1d, 0x11, 0x3b,
},
},
{
.data_len = 3333,
.digest = {
0x3a, 0xaa, 0x85, 0xa0, 0x8c, 0x8e, 0xe1, 0x9c,
0x9b, 0x43, 0x72, 0x7f, 0x40, 0x88, 0x3b, 0xd1,
0xc4, 0xd8, 0x2b, 0x69, 0xa6, 0x74, 0x47, 0x69,
0x5f, 0x7d, 0xab, 0x75, 0xa9, 0xf9, 0x88, 0x54,
0xce, 0x57, 0xcc, 0x9d, 0xac, 0x13, 0x91, 0xdb,
0x6d, 0x5c, 0xd8, 0xf4, 0x35, 0xc9, 0x30, 0xf0,
0x4b, 0x91, 0x25, 0xab, 0x92, 0xa8, 0xc8, 0x6f,
0xa0, 0xeb, 0x71, 0x56, 0x95, 0xab, 0xfd, 0xd7,
},
},
{
.data_len = 4096,
.digest = {
0xe1, 0xe9, 0xbe, 0x6c, 0x96, 0xe2, 0xe8, 0xa6,
0x53, 0xcd, 0x79, 0x77, 0x57, 0x51, 0x2f, 0xb2,
0x9f, 0xfc, 0x09, 0xaa, 0x2c, 0xbc, 0x6c, 0x5f,
0xb0, 0xf2, 0x12, 0x39, 0x54, 0xd7, 0x27, 0xf8,
0x33, 0x5d, 0xd4, 0x8a, 0xca, 0xd8, 0x2e, 0xbb,
0x02, 0x82, 0xca, 0x1b, 0x54, 0xfa, 0xd6, 0xf4,
0x49, 0x63, 0xfc, 0xc8, 0x73, 0xd4, 0x26, 0x8d,
0x4f, 0x1c, 0x56, 0xa7, 0xf4, 0x58, 0x6f, 0x51,
},
},
{
.data_len = 4128,
.digest = {
0xf2, 0xf6, 0xe1, 0x16, 0x98, 0x69, 0x74, 0x5f,
0x6c, 0xc4, 0x9d, 0x34, 0xa2, 0x84, 0x5d, 0x47,
0xac, 0x39, 0xe0, 0x14, 0x2d, 0x78, 0xfa, 0x27,
0xd5, 0x18, 0xaf, 0x26, 0x89, 0xa4, 0x69, 0xd3,
0x56, 0xde, 0xfe, 0x4b, 0x9f, 0x0c, 0x9d, 0x5a,
0x9a, 0x73, 0x3e, 0x3c, 0x76, 0x4b, 0x96, 0xca,
0x49, 0xda, 0x05, 0x8c, 0x53, 0xbb, 0x85, 0x89,
0x60, 0xc7, 0xe0, 0xb3, 0x51, 0x18, 0xd2, 0xd2,
},
},
{
.data_len = 4160,
.digest = {
0xfc, 0x5c, 0xcf, 0xbf, 0x29, 0xe3, 0x01, 0xef,
0x4b, 0x40, 0x70, 0x01, 0xca, 0x4d, 0x46, 0xce,
0xa9, 0x95, 0x5d, 0xb4, 0xf1, 0x79, 0x29, 0xdb,
0xac, 0x32, 0x3d, 0xd9, 0x60, 0x9e, 0x6b, 0xb8,
0x28, 0x62, 0xb7, 0x4a, 0xbb, 0x33, 0xb9, 0xd0,
0x83, 0xe0, 0xd7, 0x5a, 0x2d, 0x01, 0x4c, 0x61,
0x9e, 0x7d, 0x2d, 0x2d, 0x60, 0x29, 0x5e, 0x60,
0x10, 0xb7, 0x41, 0x00, 0x3f, 0xe5, 0xf7, 0x52,
},
},
{
.data_len = 4224,
.digest = {
0xf8, 0xe5, 0x4b, 0xe5, 0x89, 0xf9, 0x1b, 0x43,
0xbb, 0x65, 0x3d, 0xa0, 0xb4, 0xdc, 0x04, 0x26,
0x68, 0x15, 0xae, 0x4d, 0xd6, 0x03, 0xb7, 0x27,
0x06, 0x8c, 0x2a, 0x82, 0x51, 0x96, 0xbf, 0x83,
0x38, 0x96, 0x21, 0x8a, 0xd9, 0xf9, 0x4e, 0x38,
0xc6, 0xb3, 0xbd, 0xfe, 0xd3, 0x49, 0x90, 0xbc,
0xa1, 0x77, 0xd0, 0xa0, 0x3c, 0x2b, 0x4e, 0x10,
0x34, 0xc3, 0x17, 0x85, 0x3d, 0xec, 0xa8, 0x05,
},
},
{
.data_len = 16384,
.digest = {
0x38, 0x56, 0xaf, 0x83, 0x68, 0x9c, 0xba, 0xe3,
0xec, 0x51, 0xf5, 0xf4, 0x93, 0x48, 0x1d, 0xe6,
0xad, 0xa8, 0x8c, 0x70, 0x2a, 0xd9, 0xaa, 0x43,
0x04, 0x40, 0x95, 0xc1, 0xe6, 0x8a, 0xf5, 0x01,
0x6b, 0x79, 0xd9, 0xb4, 0xd0, 0x1d, 0x93, 0x26,
0xfe, 0xf5, 0x07, 0x57, 0xda, 0x08, 0x0a, 0x82,
0xc9, 0x17, 0x13, 0x5b, 0x9e, 0x11, 0x96, 0xa5,
0xd0, 0x92, 0xcd, 0xf1, 0xa3, 0x5b, 0x43, 0x21,
},
},
};
static const u8 hash_testvec_consolidated[BLAKE2B_HASH_SIZE] = {
0xa4, 0xf8, 0xf6, 0xa1, 0x36, 0x89, 0xc0, 0x2a,
0xc3, 0x42, 0x32, 0x71, 0xe5, 0xea, 0x14, 0x77,
0xf3, 0x99, 0x91, 0x87, 0x49, 0xc2, 0x8d, 0xa5,
0x2f, 0xed, 0x01, 0x35, 0x39, 0x64, 0x09, 0x25,
0xe3, 0xa8, 0x50, 0x97, 0x35, 0x8b, 0xf5, 0x19,
0x1e, 0xd5, 0x9f, 0x03, 0x0b, 0x65, 0x55, 0x0e,
0xa0, 0xb7, 0xda, 0x18, 0x7b, 0x7f, 0x88, 0x55,
0x1f, 0xdb, 0x82, 0x6b, 0x98, 0x90, 0x1c, 0xdd,
};
static const u8 blake2b_keyed_testvec_consolidated[BLAKE2B_HASH_SIZE] = {
0x2b, 0x89, 0x36, 0x3a, 0x36, 0xe4, 0x18, 0x38,
0xc4, 0x5b, 0x5c, 0xa5, 0x9a, 0xed, 0xf2, 0xee,
0x5a, 0xb6, 0x82, 0x6c, 0x63, 0xf2, 0x29, 0x57,
0xc7, 0xd5, 0x32, 0x27, 0xba, 0x88, 0xb1, 0xab,
0xf2, 0x2a, 0xc1, 0xea, 0xf3, 0x91, 0x89, 0x66,
0x47, 0x1e, 0x5b, 0xc6, 0x98, 0x12, 0xe9, 0x25,
0xbf, 0x72, 0xd2, 0x3f, 0x88, 0x97, 0x17, 0x51,
0xed, 0x96, 0xfb, 0xe9, 0xca, 0x52, 0x42, 0xc9,
};

133
lib/crypto/tests/blake2b_kunit.c Normal file
View File

@@ -0,0 +1,133 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2025 Google LLC
*/
#include <crypto/blake2b.h>
#include "blake2b-testvecs.h"
/*
* The following are compatibility functions that present BLAKE2b as an unkeyed
* hash function that produces hashes of fixed length BLAKE2B_HASH_SIZE, so that
* hash-test-template.h can be reused to test it.
*/
static void blake2b_default(const u8 *data, size_t len,
u8 out[BLAKE2B_HASH_SIZE])
{
blake2b(NULL, 0, data, len, out, BLAKE2B_HASH_SIZE);
}
static void blake2b_init_default(struct blake2b_ctx *ctx)
{
blake2b_init(ctx, BLAKE2B_HASH_SIZE);
}
/*
* Generate the HASH_KUNIT_CASES using hash-test-template.h. These test BLAKE2b
* with a key length of 0 and a hash length of BLAKE2B_HASH_SIZE.
*/
#define HASH blake2b_default
#define HASH_CTX blake2b_ctx
#define HASH_SIZE BLAKE2B_HASH_SIZE
#define HASH_INIT blake2b_init_default
#define HASH_UPDATE blake2b_update
#define HASH_FINAL blake2b_final
#include "hash-test-template.h"
/*
* BLAKE2b specific test case which tests all possible combinations of key
* length and hash length.
*/
static void test_blake2b_all_key_and_hash_lens(struct kunit *test)
{
const size_t data_len = 100;
u8 *data = &test_buf[0];
u8 *key = data + data_len;
u8 *hash = key + BLAKE2B_KEY_SIZE;
struct blake2b_ctx main_ctx;
u8 main_hash[BLAKE2B_HASH_SIZE];
rand_bytes_seeded_from_len(data, data_len);
blake2b_init(&main_ctx, BLAKE2B_HASH_SIZE);
for (int key_len = 0; key_len <= BLAKE2B_KEY_SIZE; key_len++) {
rand_bytes_seeded_from_len(key, key_len);
for (int out_len = 1; out_len <= BLAKE2B_HASH_SIZE; out_len++) {
blake2b(key, key_len, data, data_len, hash, out_len);
blake2b_update(&main_ctx, hash, out_len);
}
}
blake2b_final(&main_ctx, main_hash);
KUNIT_ASSERT_MEMEQ(test, main_hash, blake2b_keyed_testvec_consolidated,
BLAKE2B_HASH_SIZE);
}
/*
* BLAKE2b specific test case which tests using a guarded buffer for all allowed
* key lengths. Also tests both blake2b() and blake2b_init_key().
*/
static void test_blake2b_with_guarded_key_buf(struct kunit *test)
{
const size_t data_len = 100;
rand_bytes(test_buf, data_len);
for (int key_len = 0; key_len <= BLAKE2B_KEY_SIZE; key_len++) {
u8 key[BLAKE2B_KEY_SIZE];
u8 *guarded_key = &test_buf[TEST_BUF_LEN - key_len];
u8 hash1[BLAKE2B_HASH_SIZE];
u8 hash2[BLAKE2B_HASH_SIZE];
struct blake2b_ctx ctx;
rand_bytes(key, key_len);
memcpy(guarded_key, key, key_len);
blake2b(key, key_len, test_buf, data_len,
hash1, BLAKE2B_HASH_SIZE);
blake2b(guarded_key, key_len, test_buf, data_len,
hash2, BLAKE2B_HASH_SIZE);
KUNIT_ASSERT_MEMEQ(test, hash1, hash2, BLAKE2B_HASH_SIZE);
blake2b_init_key(&ctx, BLAKE2B_HASH_SIZE, guarded_key, key_len);
blake2b_update(&ctx, test_buf, data_len);
blake2b_final(&ctx, hash2);
KUNIT_ASSERT_MEMEQ(test, hash1, hash2, BLAKE2B_HASH_SIZE);
}
}
/*
* BLAKE2b specific test case which tests using a guarded output buffer for all
* allowed output lengths.
*/
static void test_blake2b_with_guarded_out_buf(struct kunit *test)
{
const size_t data_len = 100;
rand_bytes(test_buf, data_len);
for (int out_len = 1; out_len <= BLAKE2B_HASH_SIZE; out_len++) {
u8 hash[BLAKE2B_HASH_SIZE];
u8 *guarded_hash = &test_buf[TEST_BUF_LEN - out_len];
blake2b(NULL, 0, test_buf, data_len, hash, out_len);
blake2b(NULL, 0, test_buf, data_len, guarded_hash, out_len);
KUNIT_ASSERT_MEMEQ(test, hash, guarded_hash, out_len);
}
}
static struct kunit_case blake2b_test_cases[] = {
HASH_KUNIT_CASES,
KUNIT_CASE(test_blake2b_all_key_and_hash_lens),
KUNIT_CASE(test_blake2b_with_guarded_key_buf),
KUNIT_CASE(test_blake2b_with_guarded_out_buf),
KUNIT_CASE(benchmark_hash),
{},
};
static struct kunit_suite blake2b_test_suite = {
.name = "blake2b",
.test_cases = blake2b_test_cases,
.suite_init = hash_suite_init,
.suite_exit = hash_suite_exit,
};
kunit_test_suite(blake2b_test_suite);
MODULE_DESCRIPTION("KUnit tests and benchmark for BLAKE2b");
MODULE_LICENSE("GPL");

29
scripts/crypto/gen-hash-testvecs.py
View File

@@ -85,8 +85,8 @@ def print_c_struct_u8_array_field(name, value):
print('\t\t},')
def alg_digest_size_const(alg):
if alg == 'blake2s':
return 'BLAKE2S_HASH_SIZE'
if alg.startswith('blake2'):
return f'{alg.upper()}_HASH_SIZE'
return f'{alg.upper()}_DIGEST_SIZE'
def gen_unkeyed_testvecs(alg):
@@ -124,19 +124,22 @@ def gen_hmac_testvecs(alg):
f'hmac_testvec_consolidated[{alg.upper()}_DIGEST_SIZE]',
ctx.digest())
BLAKE2S_KEY_SIZE = 32
BLAKE2S_HASH_SIZE = 32
def gen_additional_blake2s_testvecs():
def gen_additional_blake2_testvecs(alg):
if alg == 'blake2s':
(max_key_size, max_hash_size) = (32, 32)
elif alg == 'blake2b':
(max_key_size, max_hash_size) = (64, 64)
else:
raise ValueError(f'Unsupported alg: {alg}')
hashes = b''
for key_len in range(BLAKE2S_KEY_SIZE + 1):
for out_len in range(1, BLAKE2S_HASH_SIZE + 1):
h = hashlib.blake2s(digest_size=out_len, key=rand_bytes(key_len))
for key_len in range(max_key_size + 1):
for out_len in range(1, max_hash_size + 1):
h = hashlib.new(alg, digest_size=out_len, key=rand_bytes(key_len))
h.update(rand_bytes(100))
hashes += h.digest()
print_static_u8_array_definition(
'blake2s_keyed_testvec_consolidated[BLAKE2S_HASH_SIZE]',
compute_hash('blake2s', hashes))
f'{alg}_keyed_testvec_consolidated[{alg_digest_size_const(alg)}]',
compute_hash(alg, hashes))
def gen_additional_poly1305_testvecs():
key = b'\xff' * POLY1305_KEY_SIZE
@@ -160,8 +163,8 @@ alg = sys.argv[1]
print('/* SPDX-License-Identifier: GPL-2.0-or-later */')
print(f'/* This file was generated by: {sys.argv[0]} {" ".join(sys.argv[1:])} */')
gen_unkeyed_testvecs(alg)
if alg == 'blake2s':
gen_additional_blake2s_testvecs()
if alg.startswith('blake2'):
gen_additional_blake2_testvecs(alg)
elif alg == 'poly1305':
gen_additional_poly1305_testvecs()
else: