mirror of https://github.com/openssl/openssl.git
436 lines
14 KiB
C
436 lines
14 KiB
C
/*
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* Copyright 2015-2024 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <openssl/conf.h>
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#include <openssl/crypto.h>
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#include <openssl/err.h>
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#include <openssl/evp.h>
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#include <openssl/provider.h>
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#include <openssl/core_names.h>
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#include <openssl/params.h>
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#include <openssl/param_build.h>
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#include <openssl/rand.h>
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#include <crypto/ml_kem.h>
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#include "testutil.h"
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static OSSL_LIB_CTX *testctx = NULL;
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typedef enum OPTION_choice {
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OPT_ERR = -1,
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OPT_EOF = 0,
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OPT_CONFIG_FILE,
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OPT_TEST_RAND,
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OPT_TEST_ENUM
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} OPTION_CHOICE;
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const OPTIONS *test_get_options(void)
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{
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static const OPTIONS options[] = {
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OPT_TEST_OPTIONS_DEFAULT_USAGE,
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{ "test-rand", OPT_TEST_RAND, '-', "Test non-derandomised ML-KEM" },
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{ NULL }
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};
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return options;
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}
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static uint8_t gen_seed[64] = {
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0x7c, 0x99, 0x35, 0xa0, 0xb0, 0x76, 0x94, 0xaa, 0x0c, 0x6d, 0x10, 0xe4,
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0xdb, 0x6b, 0x1a, 0xdd, 0x2f, 0xd8, 0x1a, 0x25, 0xcc, 0xb1, 0x48, 0x03,
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0x2d, 0xcd, 0x73, 0x99, 0x36, 0x73, 0x7f, 0x2d, 0x86, 0x26, 0xed, 0x79,
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0xd4, 0x51, 0x14, 0x08, 0x00, 0xe0, 0x3b, 0x59, 0xb9, 0x56, 0xf8, 0x21,
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0x0e, 0x55, 0x60, 0x67, 0x40, 0x7d, 0x13, 0xdc, 0x90, 0xfa, 0x9e, 0x8b,
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0x87, 0x2b, 0xfb, 0x8f
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};
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static uint8_t enc_seed[32] = {
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0x14, 0x7c, 0x03, 0xf7, 0xa5, 0xbe, 0xbb, 0xa4, 0x06, 0xc8, 0xfa, 0xe1,
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0x87, 0x4d, 0x7f, 0x13, 0xc8, 0x0e, 0xfe, 0x79, 0xa3, 0xa9, 0xa8, 0x74,
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0xcc, 0x09, 0xfe, 0x76, 0xf6, 0x99, 0x76, 0x15
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};
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static uint8_t dec_seed[32] = {
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0x4e, 0x6f, 0x74, 0x20, 0x74, 0x68, 0x65, 0x20, 0x64, 0x72, 0x6f, 0x69,
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0x64, 0x73, 0x20, 0x79, 0x6f, 0x75, 0x27, 0x72, 0x65, 0x20, 0x6c, 0x6f,
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0x6f, 0x6b, 0x69, 0x6e, 0x67, 0x20, 0x66, 0x6f
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};
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static uint8_t expected_rho[3][32] = {
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{
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0x7e, 0xfb, 0x9e, 0x40, 0xc3, 0xbf, 0x0f, 0xf0, 0x43, 0x29, 0x86, 0xae,
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0x4b, 0xc1, 0xa2, 0x42, 0xce, 0x99, 0x21, 0xaa, 0x9e, 0x22, 0x44, 0x88,
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0x19, 0x58, 0x5d, 0xea, 0x30, 0x8e, 0xb0, 0x39
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},
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{
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0x16, 0x2e, 0xc0, 0x98, 0xa9, 0x00, 0xb1, 0x2d, 0xd8, 0xfa, 0xbb, 0xfb,
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0x3f, 0xe8, 0xcb, 0x1d, 0xc4, 0xe8, 0x31, 0x5f, 0x2a, 0xf0, 0xd3, 0x2f,
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0x00, 0x17, 0xae, 0x13, 0x6e, 0x19, 0xf0, 0x28
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},
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{
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0x29, 0xb4, 0xf9, 0xf8, 0xcf, 0xba, 0xdf, 0x2e, 0x41, 0x86, 0x9a, 0xbf,
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0xba, 0xd1, 0x07, 0x38, 0xad, 0x04, 0xcc, 0x75, 0x2b, 0xc2, 0x0c, 0x39,
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0x47, 0x46, 0x85, 0x0e, 0x0c, 0x48, 0x47, 0xdb
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}
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};
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static uint8_t expected_ctext_sha256[3][32] = {
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{
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0xbc, 0x29, 0xd7, 0xdf, 0x8b, 0xc5, 0x46, 0x5d, 0x98, 0x06, 0x01, 0xd8,
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0x00, 0x25, 0x97, 0x93, 0xe2, 0x60, 0x38, 0x25, 0xa5, 0x72, 0xda, 0x6c,
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0xd1, 0x98, 0xa5, 0x12, 0xcc, 0x6d, 0x1a, 0x34
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},
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{
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0x36, 0x82, 0x9a, 0x2f, 0x35, 0xcb, 0xf4, 0xde, 0xb6, 0x2c, 0x0a, 0x12,
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0xa1, 0x5c, 0x22, 0xda, 0xe9, 0xf8, 0xd2, 0xc2, 0x52, 0x56, 0x6f, 0xc2,
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0x4f, 0x88, 0xab, 0xe8, 0x05, 0xcb, 0x57, 0x5e
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},
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{
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0x50, 0x81, 0x36, 0xa1, 0x3f, 0x8a, 0x79, 0x20, 0xe3, 0x43, 0x44, 0x98,
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0xc6, 0x97, 0x5c, 0xbb, 0xab, 0x45, 0x7d, 0x80, 0x93, 0x09, 0xeb, 0x2f,
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0x92, 0x45, 0x3e, 0x74, 0x09, 0x73, 0x82, 0x10
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}
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};
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static uint8_t expected_shared_secret[3][32] = {
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{
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0x31, 0x98, 0x39, 0xe8, 0x2a, 0xb6, 0xb2, 0x22, 0xde, 0x7b, 0x61, 0x9e,
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0x80, 0xda, 0x83, 0x91, 0x52, 0x2b, 0xbb, 0x37, 0x67, 0x70, 0x18, 0x49,
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0x4a, 0x47, 0x42, 0xc5, 0x3f, 0x9a, 0xbf, 0xdf
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},
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{
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0xe7, 0x18, 0x4a, 0x09, 0x75, 0xee, 0x34, 0x70, 0x87, 0x8d, 0x2d, 0x15,
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0x9e, 0xc8, 0x31, 0x29, 0xc8, 0xae, 0xc2, 0x53, 0xd4, 0xee, 0x17, 0xb4,
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0x81, 0x03, 0x11, 0xd1, 0x98, 0xcd, 0x03, 0x68
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},
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{
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0x48, 0x9d, 0xd1, 0xe9, 0xc2, 0xbe, 0x4a, 0xf3, 0x48, 0x2b, 0xdb, 0x35,
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0xbb, 0x26, 0xce, 0x76, 0x0e, 0x6e, 0x41, 0x4d, 0xa6, 0xec, 0xbe, 0x48,
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0x99, 0x85, 0x74, 0x8a, 0x82, 0x5f, 0x1c, 0xd6
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},
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};
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static int test_ml_kem(void)
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{
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EVP_PKEY *akey, *bkey = NULL;
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int res = 0;
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size_t publen;
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unsigned char *rawpub = NULL;
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EVP_PKEY_CTX *ctx = NULL;
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unsigned char *wrpkey = NULL, *agenkey = NULL, *bgenkey = NULL;
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size_t wrpkeylen, agenkeylen, bgenkeylen, i;
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/* Generate Alice's key */
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akey = EVP_PKEY_Q_keygen(testctx, NULL, "ML-KEM-768");
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if (!TEST_ptr(akey))
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goto err;
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/* Get the raw public key */
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publen = EVP_PKEY_get1_encoded_public_key(akey, &rawpub);
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if (!TEST_size_t_gt(publen, 0))
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goto err;
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/* Create Bob's key and populate it with Alice's public key data */
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bkey = EVP_PKEY_new();
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if (!TEST_ptr(bkey))
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goto err;
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if (!TEST_int_gt(EVP_PKEY_copy_parameters(bkey, akey), 0))
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goto err;
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if (!TEST_true(EVP_PKEY_set1_encoded_public_key(bkey, rawpub, publen)))
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goto err;
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/* Encapsulate Bob's key */
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ctx = EVP_PKEY_CTX_new_from_pkey(testctx, bkey, NULL);
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if (!TEST_ptr(ctx))
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goto err;
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if (!TEST_int_gt(EVP_PKEY_encapsulate_init(ctx, NULL), 0))
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goto err;
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if (!TEST_int_gt(EVP_PKEY_encapsulate(ctx, NULL, &wrpkeylen, NULL,
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&bgenkeylen), 0))
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goto err;
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if (!TEST_size_t_gt(wrpkeylen, 0) || !TEST_size_t_gt(bgenkeylen, 0))
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goto err;
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wrpkey = OPENSSL_zalloc(wrpkeylen);
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bgenkey = OPENSSL_zalloc(bgenkeylen);
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if (!TEST_ptr(wrpkey) || !TEST_ptr(bgenkey))
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goto err;
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if (!TEST_int_gt(EVP_PKEY_encapsulate(ctx, wrpkey, &wrpkeylen, bgenkey,
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&bgenkeylen), 0))
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goto err;
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EVP_PKEY_CTX_free(ctx);
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/* Alice now decapsulates Bob's key */
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ctx = EVP_PKEY_CTX_new_from_pkey(testctx, akey, NULL);
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if (!TEST_ptr(ctx))
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goto err;
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if (!TEST_int_gt(EVP_PKEY_decapsulate_init(ctx, NULL), 0))
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goto err;
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if (!TEST_int_gt(EVP_PKEY_decapsulate(ctx, NULL, &agenkeylen, wrpkey,
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wrpkeylen), 0))
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goto err;
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if (!TEST_size_t_gt(agenkeylen, 0))
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goto err;
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agenkey = OPENSSL_zalloc(agenkeylen);
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if (!TEST_ptr(agenkey))
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goto err;
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if (!TEST_int_gt(EVP_PKEY_decapsulate(ctx, agenkey, &agenkeylen, wrpkey,
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wrpkeylen), 0))
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goto err;
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/* Hopefully we ended up with a shared key */
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if (!TEST_mem_eq(agenkey, agenkeylen, bgenkey, bgenkeylen))
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goto err;
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/* Verify we generated a non-zero shared key */
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for (i = 0; i < agenkeylen; i++)
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if (agenkey[i] != 0)
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break;
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if (!TEST_size_t_ne(i, agenkeylen))
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goto err;
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res = 1;
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err:
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EVP_PKEY_CTX_free(ctx);
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EVP_PKEY_free(akey);
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EVP_PKEY_free(bkey);
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OPENSSL_free(rawpub);
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OPENSSL_free(wrpkey);
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OPENSSL_free(agenkey);
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OPENSSL_free(bgenkey);
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return res;
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}
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static int test_non_derandomised_ml_kem(void)
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{
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static const int alg[3] = {
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EVP_PKEY_ML_KEM_512,
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EVP_PKEY_ML_KEM_768,
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EVP_PKEY_ML_KEM_1024
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};
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EVP_RAND_CTX *privctx;
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EVP_RAND_CTX *pubctx;
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EVP_MD *sha256;
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int i, ret = 0;
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if (!TEST_ptr(privctx = RAND_get0_private(NULL))
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|| !TEST_ptr(pubctx = RAND_get0_public(NULL)))
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return 0;
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if (!TEST_ptr(sha256 = EVP_MD_fetch(NULL, "sha256", NULL)))
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return 0;
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for (i = 0; i < (int) OSSL_NELEM(alg); ++i) {
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const ML_KEM_VINFO *v;
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OSSL_PARAM params[3], *p;
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uint8_t hash[32];
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EVP_PKEY *akey = NULL, *bkey = NULL;
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size_t publen;
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unsigned char *rawpub = NULL;
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EVP_PKEY_CTX *ctx = NULL;
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unsigned char *wrpkey = NULL, *agenkey = NULL, *bgenkey = NULL;
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size_t wrpkeylen, agenkeylen, bgenkeylen;
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unsigned int strength = 256;
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unsigned char c;
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int res = -1;
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if ((v = ossl_ml_kem_get_vinfo(alg[i])) == NULL)
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goto done;
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/* Configure the private RNG to output just the keygen seed */
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p = params;
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*p++ = OSSL_PARAM_construct_octet_string(OSSL_RAND_PARAM_TEST_ENTROPY,
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gen_seed, sizeof(gen_seed));
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*p++ = OSSL_PARAM_construct_uint(OSSL_RAND_PARAM_STRENGTH, &strength);
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*p = OSSL_PARAM_construct_end();
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if (!TEST_true(EVP_RAND_CTX_set_params(privctx, params)))
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goto done;
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res = -2;
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/* Generate Alice's key */
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akey = EVP_PKEY_Q_keygen(testctx, NULL, v->algorithm_name);
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if (!TEST_ptr(akey))
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goto done;
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/* Check that no more entropy is available! */
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if (!TEST_int_le(RAND_priv_bytes(&c, 1), 0))
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goto done;
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/* Get the raw public key */
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publen = EVP_PKEY_get1_encoded_public_key(akey, &rawpub);
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if (!TEST_size_t_eq(publen, v->pubkey_bytes))
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goto done;
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res = -3;
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/* Check that we got the expected 'rho' value in the ciphertext */
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if (!TEST_mem_eq(rawpub + v->vector_bytes, ML_KEM_RANDOM_BYTES,
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expected_rho[i], ML_KEM_RANDOM_BYTES))
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goto done;
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res = -4;
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/* Create Bob's key and populate it with Alice's public key data */
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bkey = EVP_PKEY_new();
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if (!TEST_ptr(bkey))
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goto done;
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if (!TEST_int_gt(EVP_PKEY_copy_parameters(bkey, akey), 0))
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goto done;
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if (!TEST_true(EVP_PKEY_set1_encoded_public_key(bkey, rawpub, publen)))
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goto done;
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/* Configure the public RNG to output just the encap seed */
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p = params;
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*p = OSSL_PARAM_construct_octet_string(OSSL_RAND_PARAM_TEST_ENTROPY,
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enc_seed, sizeof(enc_seed));
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if (!TEST_true(EVP_RAND_CTX_set_params(pubctx, params)))
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goto done;
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/* Encapsulate Bob's key */
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res = -5;
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ctx = EVP_PKEY_CTX_new_from_pkey(testctx, bkey, NULL);
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if (!TEST_ptr(ctx))
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goto done;
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if (!TEST_int_gt(EVP_PKEY_encapsulate_init(ctx, NULL), 0))
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goto done;
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if (!TEST_int_gt(EVP_PKEY_encapsulate(ctx, NULL, &wrpkeylen, NULL,
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&bgenkeylen), 0))
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goto done;
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if (!TEST_size_t_eq(wrpkeylen, v->ctext_bytes)
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|| !TEST_size_t_eq(bgenkeylen, ML_KEM_SHARED_SECRET_BYTES))
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goto done;
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wrpkey = OPENSSL_zalloc(wrpkeylen);
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bgenkey = OPENSSL_zalloc(bgenkeylen);
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if (!TEST_ptr(wrpkey) || !TEST_ptr(bgenkey))
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goto done;
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if (!TEST_true(EVP_PKEY_encapsulate(ctx, wrpkey, &wrpkeylen, bgenkey,
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&bgenkeylen)))
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goto done;
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EVP_PKEY_CTX_free(ctx);
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ctx = NULL;
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/* Check that no more public entropy is available! */
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if (!TEST_int_le(RAND_bytes(&c, 1), 0))
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goto done;
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res = -6;
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/* Check the ciphertext hash */
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if (!TEST_true(EVP_Digest(wrpkey, v->ctext_bytes,
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hash, NULL, sha256, NULL))
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|| !TEST_mem_eq(hash, sizeof(hash),
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expected_ctext_sha256[i],
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sizeof(expected_ctext_sha256[i])))
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goto done;
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/* Check for the expected shared secret */
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if (!TEST_mem_eq(bgenkey, bgenkeylen,
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expected_shared_secret[i], ML_KEM_SHARED_SECRET_BYTES))
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goto done;
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/*
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* Alice now decapsulates Bob's key. Decap should not need a seed if
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* the ciphertext length is good.
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*/
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res = -7;
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ctx = EVP_PKEY_CTX_new_from_pkey(testctx, akey, NULL);
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if (!TEST_ptr(ctx))
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goto done;
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if (!TEST_int_gt(EVP_PKEY_decapsulate_init(ctx, NULL), 0))
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goto done;
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if (!TEST_true(EVP_PKEY_decapsulate(ctx, NULL, &agenkeylen, wrpkey,
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wrpkeylen)))
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goto done;
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if (!TEST_size_t_eq(agenkeylen, ML_KEM_SHARED_SECRET_BYTES))
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goto done;
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agenkey = OPENSSL_zalloc(agenkeylen);
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if (!TEST_ptr(agenkey))
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goto done;
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if (!TEST_true(EVP_PKEY_decapsulate(ctx, agenkey, &agenkeylen, wrpkey,
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wrpkeylen)))
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goto done;
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/* Hopefully we ended up with a shared key */
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if (!TEST_mem_eq(agenkey, agenkeylen, bgenkey, bgenkeylen))
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goto done;
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res = -8;
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/* Now a quick negative test by zeroing the ciphertext */
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memset(wrpkey, 0, v->ctext_bytes);
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if (!TEST_true(EVP_PKEY_decapsulate(ctx, agenkey, &agenkeylen, wrpkey,
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wrpkeylen)))
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goto done;
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if (!TEST_mem_ne(agenkey, agenkeylen, bgenkey, bgenkeylen))
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goto done;
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res = -9;
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/* Configure decap entropy for a bad ciphertext length */
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p = params;
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*p = OSSL_PARAM_construct_octet_string(OSSL_RAND_PARAM_TEST_ENTROPY,
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dec_seed, sizeof(dec_seed));
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if (!TEST_true(EVP_RAND_CTX_set_params(pubctx, params)))
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goto done;
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/* This time decap should fail, and return the decap entropy */
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if (!TEST_false(EVP_PKEY_decapsulate(ctx, agenkey, &agenkeylen, wrpkey,
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wrpkeylen - 1)))
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goto done;
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if (!TEST_mem_eq(agenkey, agenkeylen, dec_seed, sizeof(dec_seed)))
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goto done;
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res = 0;
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done:
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EVP_PKEY_CTX_free(ctx);
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EVP_PKEY_free(akey);
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EVP_PKEY_free(bkey);
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OPENSSL_free(rawpub);
|
|
OPENSSL_free(wrpkey);
|
|
OPENSSL_free(agenkey);
|
|
OPENSSL_free(bgenkey);
|
|
if (res != 0)
|
|
ret = res;
|
|
}
|
|
|
|
EVP_MD_free(sha256);
|
|
return ret == 0;
|
|
}
|
|
|
|
int setup_tests(void)
|
|
{
|
|
int test_rand = 0;
|
|
OPTION_CHOICE o;
|
|
|
|
while ((o = opt_next()) != OPT_EOF) {
|
|
switch (o) {
|
|
case OPT_TEST_RAND:
|
|
test_rand = 1;
|
|
break;
|
|
case OPT_TEST_CASES:
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (test_rand != 0) {
|
|
/* Cargo-culted from test/rand_test.c, this may need changes */
|
|
if (!TEST_true(RAND_set_DRBG_type(NULL, "TEST-RAND", "fips=no",
|
|
NULL, NULL)))
|
|
return 0;
|
|
ADD_TEST(test_non_derandomised_ml_kem);
|
|
return 1;
|
|
}
|
|
|
|
ADD_TEST(test_ml_kem);
|
|
return 1;
|
|
}
|