Test the following helper functions using AES with 128, 192, and 256 bit keys:
grub_crypto_ecb_encrypt grub_crypto_ecb_decrypt grub_crypto_cbc_encrypt grub_crypto_cbc_decrypt Signed-off-by: Srish Srinivasan <[email protected]> --- Link to v1: https://lists.gnu.org/archive/html/grub-devel/2025-11/msg00237.html docs/grub.texi | 5 + grub-core/Makefile.core.def | 5 + grub-core/tests/ecb_cbc_test.c | 197 ++++++++++++++++++++++++++ grub-core/tests/ecb_cbc_vectors.h | 135 ++++++++++++++++++ grub-core/tests/lib/functional_test.c | 1 + 5 files changed, 343 insertions(+) create mode 100644 grub-core/tests/ecb_cbc_test.c create mode 100644 grub-core/tests/ecb_cbc_vectors.h diff --git a/docs/grub.texi b/docs/grub.texi index 7181009b6..63a82bba2 100644 --- a/docs/grub.texi +++ b/docs/grub.texi @@ -4092,6 +4092,7 @@ Modules can be loaded via the @command{insmod} (@pxref{insmod}) command. * dm_nv_module:: * drivemap_module:: * dsa_sexp_test_module:: +* ecb_cbc_test_module:: * echo_module:: * efi_gop_module:: * efi_uga_module:: @@ -4677,6 +4678,10 @@ mappings. @xref{drivemap} for more information. @section dsa_sexp_test This module provides a test of the libgcrypt DSA functionality in GRUB. +@node ecb_cbc_test_module +@section ecb_cbc_test +This module is intended for performing functional tests for ecb and cbc + @node echo_module @section echo This module provides support for the @command{echo} to display a line of text. diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def index fa4bc54aa..a28de3a93 100644 --- a/grub-core/Makefile.core.def +++ b/grub-core/Makefile.core.def @@ -2272,6 +2272,11 @@ module = { common = tests/argon2_test.c; }; +module = { + name = ecb_cbc_test; + common = tests/ecb_cbc_test.c; +}; + module = { name = legacy_password_test; common = tests/legacy_password_test.c; diff --git a/grub-core/tests/ecb_cbc_test.c b/grub-core/tests/ecb_cbc_test.c new file mode 100644 index 000000000..e988ab224 --- /dev/null +++ b/grub-core/tests/ecb_cbc_test.c @@ -0,0 +1,197 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2025 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/test.h> +#include <grub/dl.h> +#include <grub/misc.h> +#include <grub/crypto.h> + +#include "ecb_cbc_vectors.h" + +GRUB_MOD_LICENSE ("GPLv3+"); + +/* Perform cipher lookup, handle init, and key setting. */ +static grub_crypto_cipher_handle_t +handle_init (struct vector vec, grub_crypto_cipher_handle_t handle) +{ + gcry_err_code_t err; + + const gcry_cipher_spec_t *cipher = grub_crypto_lookup_cipher_by_name (vec.cipher); + grub_test_assert (cipher != NULL, "\n%s: cipher lookup failed for %s", vec.mode, vec.cipher); + if (cipher == NULL) + return NULL; + + handle = grub_crypto_cipher_open (cipher); + grub_test_assert (handle != NULL, "\n%s: handle init failed for %s", vec.mode, vec.cipher); + if (handle == NULL) + return NULL; + + err = grub_crypto_cipher_set_key (handle, (grub_uint8_t *) vec.key, vec.keylen); + grub_test_assert (err == GPG_ERR_NO_ERROR, "\n%s: key set of size %d failed for %s with err = %d", + vec.mode, vec.keylen, vec.cipher, err); + if (err != GPG_ERR_NO_ERROR) + { + grub_crypto_cipher_close (handle); + return NULL; + } + + return handle; +} + +static void +ecb_test (struct vector vec) +{ + gcry_err_code_t gcry_err; + grub_crypto_cipher_handle_t handle = NULL; + grub_uint8_t *plaintext = NULL, *ciphertext = NULL; + grub_int32_t rc; + + handle = handle_init (vec, handle); + if (handle == NULL) + return; + + /* Test encryption. */ + ciphertext = grub_zalloc (vec.plen); + grub_test_assert (ciphertext != NULL, "\necb: ciphertext buffer allocation failed"); + if (ciphertext == NULL) + goto out_handle; + + gcry_err = grub_crypto_ecb_encrypt (handle, ciphertext, vec.ptext, vec.plen); + grub_test_assert (gcry_err == GPG_ERR_NO_ERROR, "\necb: encryption failed with err = %d", + gcry_err); + if (gcry_err != GPG_ERR_NO_ERROR) + goto out_ct; + + rc = grub_memcmp (ciphertext, vec.ctext, vec.plen); + grub_test_assert (rc == 0, "\necb: ciphertext mismatch after encryption"); + if (rc != 0) + goto out_ct; + + /* Test decryption. */ + plaintext = grub_zalloc (vec.plen); + grub_test_assert (plaintext != NULL, "\necb: plaintext buffer allocation failed"); + if (plaintext == NULL) + goto out_ct; + + gcry_err = grub_crypto_ecb_decrypt (handle, plaintext, ciphertext, vec.plen); + grub_test_assert (gcry_err == GPG_ERR_NO_ERROR, "\necb: decryption failed failed with err = %d", + gcry_err); + if (gcry_err != GPG_ERR_NO_ERROR) + goto out_pt; + + rc = grub_memcmp (plaintext, vec.ptext, vec.plen); + grub_test_assert (rc == 0, "\necb: plaintext mismatch after decryption"); + +out_pt: + grub_free(plaintext); +out_ct: + grub_free(ciphertext); +out_handle: + grub_crypto_cipher_close(handle); +} + +static void +cbc_test (struct vector vec) +{ + gcry_err_code_t gcry_err; + grub_crypto_cipher_handle_t handle = NULL; + grub_uint8_t *plaintext = NULL, *ciphertext = NULL; + grub_uint32_t *iv = NULL; + grub_int32_t rc; + + handle = handle_init (vec, handle); + if (handle == NULL) + return; + + /* Test Encryption */ + iv = grub_malloc(vec.ivlen); + grub_test_assert (iv != NULL, "\ncbc: IV buffer allocation failed"); + if (iv == NULL) + goto out_handle; + + grub_memcpy (iv, vec.iv_in, vec.ivlen); + + ciphertext = grub_zalloc (vec.plen); + grub_test_assert (ciphertext != NULL, "\ncbc: ciphertext buffer allocation failed"); + if (ciphertext == NULL) + goto out_iv; + + gcry_err = grub_crypto_cbc_encrypt (handle, ciphertext, vec.ptext, vec.plen, iv); + grub_test_assert (gcry_err == GPG_ERR_NO_ERROR, "\ncbc: encryption failed with err = %d", + gcry_err); + if (gcry_err != GPG_ERR_NO_ERROR) + goto out_ct; + + rc = grub_memcmp (ciphertext, vec.ctext, vec.plen); + grub_test_assert (rc == 0, "\ncbc: ciphertext mismatch after encryption"); + if (rc != 0) + goto out_ct; + + rc = grub_memcmp (iv, vec.iv_out, vec.ivlen); + grub_test_assert (rc == 0, "\ncbc: IV out mismatch after encryption"); + if (rc != 0) + goto out_ct; + + /* Test Decryption */ + grub_memcpy (iv, vec.iv_in, vec.ivlen); + + plaintext = grub_zalloc (vec.plen); + grub_test_assert (plaintext != NULL, "\ncbc: plaintext buffer allocation failed"); + if (plaintext == NULL) + goto out_ct; + + gcry_err = grub_crypto_cbc_decrypt (handle, plaintext, ciphertext, vec.plen, iv); + grub_test_assert (gcry_err == GPG_ERR_NO_ERROR, "\ncbc: decryption failed with err = %d", + gcry_err); + if (gcry_err != GPG_ERR_NO_ERROR) + goto out_pt; + + rc = grub_memcmp (plaintext, vec.ptext, vec.plen); + grub_test_assert (rc == 0, "\ncbc: plaintext mismatch after decryption"); + +out_pt: + grub_free(plaintext); +out_ct: + grub_free(ciphertext); +out_iv: + grub_free(iv); +out_handle: + grub_crypto_cipher_close(handle); +} + +static void +ecb_cbc_test (void) +{ + grub_size_t i; + + for (i = 0; i < ARRAY_SIZE (vecs); i++) + { + if (grub_strcmp (vecs[i].mode, "ecb") == 0) + ecb_test(vecs[i]); + else if (grub_strcmp (vecs[i].mode, "cbc") == 0) + cbc_test(vecs[i]); + else + { + grub_test_assert(0, "\n%s mode unsupported for testing", vecs[i].mode); + return; + } + } +} + +/* Register example_test method as a functional test. */ +GRUB_FUNCTIONAL_TEST (ecb_cbc_test, ecb_cbc_test); diff --git a/grub-core/tests/ecb_cbc_vectors.h b/grub-core/tests/ecb_cbc_vectors.h new file mode 100644 index 000000000..8ef948b46 --- /dev/null +++ b/grub-core/tests/ecb_cbc_vectors.h @@ -0,0 +1,135 @@ +struct vector +{ + const char *cipher; + const char *mode; + const char *key; + grub_uint32_t keylen; + const char *ptext; + grub_uint32_t plen; + const char *ctext; + const char *iv_in; + const char *iv_out; + grub_uint32_t ivlen; +} vecs[] = { + { + .cipher = "aes", + .mode = "ecb", + .key = "\x00\x01\x02\x03\x04\x05\x06\x07" + "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", + .keylen = 16, + .ptext = "\x00\x11\x22\x33\x44\x55\x66\x77" + "\x88\x99\xaa\xbb\xcc\xdd\xee\xff", + .plen = 16, + .ctext = "\x69\xc4\xe0\xd8\x6a\x7b\x04\x30" + "\xd8\xcd\xb7\x80\x70\xb4\xc5\x5a", + }, + { + .cipher = "aes", + .mode = "ecb", + .key = "\x00\x01\x02\x03\x04\x05\x06\x07" + "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f" + "\x10\x11\x12\x13\x14\x15\x16\x17", + .keylen = 24, + .ptext = "\x00\x11\x22\x33\x44\x55\x66\x77" + "\x88\x99\xaa\xbb\xcc\xdd\xee\xff", + .plen = 16, + .ctext = "\xdd\xa9\x7c\xa4\x86\x4c\xdf\xe0" + "\x6e\xaf\x70\xa0\xec\x0d\x71\x91", + }, + { + .cipher = "aes", + .mode = "ecb", + .key = "\x00\x01\x02\x03\x04\x05\x06\x07" + "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f" + "\x10\x11\x12\x13\x14\x15\x16\x17" + "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", + .keylen = 32, + .ptext = "\x00\x11\x22\x33\x44\x55\x66\x77" + "\x88\x99\xaa\xbb\xcc\xdd\xee\xff", + .plen = 16, + .ctext = "\x8e\xa2\xb7\xca\x51\x67\x45\xbf" + "\xea\xfc\x49\x90\x4b\x49\x60\x89", + }, + { + .cipher = "aes", + .mode = "cbc", + .key = "\xc2\x86\x69\x6d\x88\x7c\x9a\xa0" + "\x61\x1b\xbb\x3e\x20\x25\xa4\x5a", + .keylen = 16, + .ptext = "\x00\x01\x02\x03\x04\x05\x06\x07" + "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f" + "\x10\x11\x12\x13\x14\x15\x16\x17" + "\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f", + .plen = 32, + .ctext = "\xd2\x96\xcd\x94\xc2\xcc\xcf\x8a" + "\x3a\x86\x30\x28\xb5\xe1\xdc\x0a" + "\x75\x86\x60\x2d\x25\x3c\xff\xf9" + "\x1b\x82\x66\xbe\xa6\xd6\x1a\xb1", + .iv_in = "\x56\x2e\x17\x99\x6d\x09\x3d\x28" + "\xdd\xb3\xba\x69\x5a\x2e\x6f\x58", + .iv_out = "\x75\x86\x60\x2d\x25\x3c\xff\xf9" + "\x1b\x82\x66\xbe\xa6\xd6\x1a\xb1", + .ivlen = 16, + }, + { + .cipher = "aes", + .mode = "cbc", + .key = "\x8e\x73\xb0\xf7\xda\x0e\x64\x52" + "\xc8\x10\xf3\x2b\x80\x90\x79\xe5" + "\x62\xf8\xea\xd2\x52\x2c\x6b\x7b", + .keylen = 24, + .ptext = "\x6b\xc1\xbe\xe2\x2e\x40\x9f\x96" + "\xe9\x3d\x7e\x11\x73\x93\x17\x2a" + "\xae\x2d\x8a\x57\x1e\x03\xac\x9c" + "\x9e\xb7\x6f\xac\x45\xaf\x8e\x51" + "\x30\xc8\x1c\x46\xa3\x5c\xe4\x11" + "\xe5\xfb\xc1\x19\x1a\x0a\x52\xef" + "\xf6\x9f\x24\x45\xdf\x4f\x9b\x17" + "\xad\x2b\x41\x7b\xe6\x6c\x37\x10", + .plen = 64, + .ctext = "\x4f\x02\x1d\xb2\x43\xbc\x63\x3d" + "\x71\x78\x18\x3a\x9f\xa0\x71\xe8" + "\xb4\xd9\xad\xa9\xad\x7d\xed\xf4" + "\xe5\xe7\x38\x76\x3f\x69\x14\x5a" + "\x57\x1b\x24\x20\x12\xfb\x7a\xe0" + "\x7f\xa9\xba\xac\x3d\xf1\x02\xe0" + "\x08\xb0\xe2\x79\x88\x59\x88\x81" + "\xd9\x20\xa9\xe6\x4f\x56\x15\xcd", + .iv_in = "\x00\x01\x02\x03\x04\x05\x06\x07" + "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", + .iv_out = "\x08\xb0\xe2\x79\x88\x59\x88\x81" + "\xd9\x20\xa9\xe6\x4f\x56\x15\xcd", + .ivlen = 16, + }, + { + .cipher = "aes", + .mode = "cbc", + .key = "\x60\x3d\xeb\x10\x15\xca\x71\xbe" + "\x2b\x73\xae\xf0\x85\x7d\x77\x81" + "\x1f\x35\x2c\x07\x3b\x61\x08\xd7" + "\x2d\x98\x10\xa3\x09\x14\xdf\xf4", + .keylen = 32, + .ptext = "\x6b\xc1\xbe\xe2\x2e\x40\x9f\x96" + "\xe9\x3d\x7e\x11\x73\x93\x17\x2a" + "\xae\x2d\x8a\x57\x1e\x03\xac\x9c" + "\x9e\xb7\x6f\xac\x45\xaf\x8e\x51" + "\x30\xc8\x1c\x46\xa3\x5c\xe4\x11" + "\xe5\xfb\xc1\x19\x1a\x0a\x52\xef" + "\xf6\x9f\x24\x45\xdf\x4f\x9b\x17" + "\xad\x2b\x41\x7b\xe6\x6c\x37\x10", + .plen = 64, + .ctext = "\xf5\x8c\x4c\x04\xd6\xe5\xf1\xba" + "\x77\x9e\xab\xfb\x5f\x7b\xfb\xd6" + "\x9c\xfc\x4e\x96\x7e\xdb\x80\x8d" + "\x67\x9f\x77\x7b\xc6\x70\x2c\x7d" + "\x39\xf2\x33\x69\xa9\xd9\xba\xcf" + "\xa5\x30\xe2\x63\x04\x23\x14\x61" + "\xb2\xeb\x05\xe2\xc3\x9b\xe9\xfc" + "\xda\x6c\x19\x07\x8c\x6a\x9d\x1b", + .iv_in = "\x00\x01\x02\x03\x04\x05\x06\x07" + "\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f", + .iv_out = "\xb2\xeb\x05\xe2\xc3\x9b\xe9\xfc" + "\xda\x6c\x19\x07\x8c\x6a\x9d\x1b", + .ivlen = 16, + }, +}; diff --git a/grub-core/tests/lib/functional_test.c b/grub-core/tests/lib/functional_test.c index 776934e1f..84ef95bbe 100644 --- a/grub-core/tests/lib/functional_test.c +++ b/grub-core/tests/lib/functional_test.c @@ -82,6 +82,7 @@ grub_functional_all_tests (grub_extcmd_context_t ctxt __attribute__ ((unused)), grub_dl_load ("shift_test"); grub_dl_load ("asn1_test"); grub_dl_load ("argon2_test"); + grub_dl_load ("ecb_cbc_test"); FOR_LIST_ELEMENTS (test, grub_test_list) ok = !grub_test_run (test) && ok; -- 2.43.0 _______________________________________________ Grub-devel mailing list [email protected] https://lists.gnu.org/mailman/listinfo/grub-devel
