lib/crypto: tests: Add KUnit tests for BLAKE2b

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>

diff --git a/lib/crypto/tests/Kconfig b/lib/crypto/tests/Kconfig
index 578af717e13a7cf1e04a6bbce88da868386dab3a..2ebfd681bae4dac7ff99d100f86d385dfdec7f14 100644 (file)
--- a/lib/crypto/tests/Kconfig
+++ b/lib/crypto/tests/Kconfig
@@ -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

diff --git a/lib/crypto/tests/Makefile b/lib/crypto/tests/Makefile
index a71fad19922baa3723d1eafa90fd257548808571..f21a48a4415d04e97d5c89e3cb587895435c0cfa 100644 (file)
--- a/lib/crypto/tests/Makefile
+++ b/lib/crypto/tests/Makefile
@@ -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

diff --git a/lib/crypto/tests/blake2b-testvecs.h b/lib/crypto/tests/blake2b-testvecs.h
new file mode 100644 (file)
index 0000000..9e407db
--- /dev/null
+++ b/lib/crypto/tests/blake2b-testvecs.h
@@ -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,
+};

diff --git a/lib/crypto/tests/blake2b_kunit.c b/lib/crypto/tests/blake2b_kunit.c
new file mode 100644 (file)
index 0000000..bc0be7d
--- /dev/null
+++ b/lib/crypto/tests/blake2b_kunit.c
@@ -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");

diff --git a/scripts/crypto/gen-hash-testvecs.py b/scripts/crypto/gen-hash-testvecs.py
index fc063f2ee95f1e9a4a2ee288cb82fee3136441e1..c5b7985fe7280a20614af9db7fced70c55262da9 100755 (executable)
--- a/scripts/crypto/gen-hash-testvecs.py
+++ b/scripts/crypto/gen-hash-testvecs.py
@@ -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: