| /* Copyright 2018 The BoringSSL Authors |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ |
| |
| #include <gtest/gtest.h> |
| |
| #include <openssl/hrss.h> |
| #include <openssl/rand.h> |
| |
| #include "../internal.h" |
| #include "../test/abi_test.h" |
| #include "../test/test_util.h" |
| #include "internal.h" |
| |
| |
| // poly3_rand sets |r| to a random value (albeit with bias). |
| static void poly3_rand(poly3 *p) { |
| RAND_bytes(reinterpret_cast<uint8_t *>(p), sizeof(poly3)); |
| p->s.v[WORDS_PER_POLY - 1] &= (UINT64_C(1) << BITS_IN_LAST_WORD) - 1; |
| p->a.v[WORDS_PER_POLY - 1] &= (UINT64_C(1) << BITS_IN_LAST_WORD) - 1; |
| // (s, a) = (1, 0) is invalid. Map those to -1. |
| for (size_t j = 0; j < WORDS_PER_POLY; j++) { |
| p->a.v[j] |= p->s.v[j]; |
| } |
| } |
| |
| // poly3_word_add sets (|s1|, |a1|) += (|s2|, |a2|). |
| static void poly3_word_add(crypto_word_t *s1, crypto_word_t *a1, |
| const crypto_word_t s2, const crypto_word_t a2) { |
| const crypto_word_t t = *s1 ^ a2; |
| *s1 = t & (s2 ^ *a1); |
| *a1 = (*a1 ^ a2) | (t ^ s2); |
| } |
| |
| TEST(HRSS, Poly3Invert) { |
| poly3 p, inverse, result; |
| memset(&p, 0, sizeof(p)); |
| memset(&inverse, 0, sizeof(inverse)); |
| memset(&result, 0, sizeof(result)); |
| |
| p.s.v[0] = 0; |
| p.a.v[0] = 1; |
| for (size_t i = 0; i < N - 1; i++) { |
| SCOPED_TRACE(i); |
| poly3 r; |
| OPENSSL_memset(&r, 0, sizeof(r)); |
| r.a.v[i / BITS_PER_WORD] = (UINT64_C(1) << (i % BITS_PER_WORD)); |
| HRSS_poly3_invert(&inverse, &r); |
| HRSS_poly3_mul(&result, &inverse, &r); |
| // r×r⁻¹ = 1, and |p| contains 1. |
| EXPECT_EQ( |
| Bytes(reinterpret_cast<const uint8_t *>(&p), sizeof(p)), |
| Bytes(reinterpret_cast<const uint8_t *>(&result), sizeof(result))); |
| } |
| |
| // The inverse of -1 is -1. |
| p.s.v[0] = 1; |
| p.a.v[0] = 1; |
| HRSS_poly3_invert(&inverse, &p); |
| EXPECT_EQ(Bytes(reinterpret_cast<const uint8_t*>(&p), sizeof(p)), |
| Bytes(reinterpret_cast<const uint8_t*>(&inverse), sizeof(inverse))); |
| |
| // The inverse of 1 is 1. |
| p.s.v[0] = 0; |
| p.a.v[0] = 1; |
| HRSS_poly3_invert(&inverse, &p); |
| EXPECT_EQ(Bytes(reinterpret_cast<const uint8_t*>(&p), sizeof(p)), |
| Bytes(reinterpret_cast<const uint8_t*>(&inverse), sizeof(inverse))); |
| |
| for (size_t i = 0; i < 500; i++) { |
| poly3 r; |
| poly3_rand(&r); |
| // Drop the term at x^700 because |HRSS_poly3_invert| only handles reduced |
| // inputs. |
| r.s.v[WORDS_PER_POLY - 1] &= (UINT64_C(1) << (BITS_IN_LAST_WORD - 1)) - 1; |
| r.a.v[WORDS_PER_POLY - 1] &= (UINT64_C(1) << (BITS_IN_LAST_WORD - 1)) - 1; |
| HRSS_poly3_invert(&inverse, &r); |
| HRSS_poly3_mul(&result, &inverse, &r); |
| // r×r⁻¹ = 1, and |p| contains 1. |
| EXPECT_EQ( |
| Bytes(reinterpret_cast<const uint8_t *>(&p), sizeof(p)), |
| Bytes(reinterpret_cast<const uint8_t *>(&result), sizeof(result))); |
| } |
| } |
| |
| TEST(HRSS, Poly3UnreducedInput) { |
| // Check that |poly3_mul| works correctly with inputs that aren't reduced mod |
| // Φ(N). |
| poly3 r, inverse, result, one; |
| poly3_rand(&r); |
| // Drop the term at x^700 because |HRSS_poly3_invert| only handles reduced |
| // inputs. |
| r.s.v[WORDS_PER_POLY - 1] &= (UINT64_C(1) << (BITS_IN_LAST_WORD - 1)) - 1; |
| r.a.v[WORDS_PER_POLY - 1] &= (UINT64_C(1) << (BITS_IN_LAST_WORD - 1)) - 1; |
| HRSS_poly3_invert(&inverse, &r); |
| HRSS_poly3_mul(&result, &inverse, &r); |
| |
| memset(&one, 0, sizeof(one)); |
| one.a.v[0] = 1; |
| EXPECT_EQ(Bytes(reinterpret_cast<const uint8_t *>(&one), sizeof(one)), |
| Bytes(reinterpret_cast<const uint8_t *>(&result), sizeof(result))); |
| |
| // |r| is reduced mod Φ(N), so add x^701 - 1 and recompute to ensure that we |
| // get the same answer. (Since (x^701 - 1) ≡ 0 mod Φ(N).) |
| poly3_word_add(&r.s.v[0], &r.a.v[0], 1, 1); |
| poly3_word_add(&r.s.v[WORDS_PER_POLY - 1], &r.a.v[WORDS_PER_POLY - 1], 0, |
| UINT64_C(1) << BITS_IN_LAST_WORD); |
| |
| HRSS_poly3_mul(&result, &inverse, &r); |
| EXPECT_EQ(Bytes(reinterpret_cast<const uint8_t *>(&one), sizeof(one)), |
| Bytes(reinterpret_cast<const uint8_t *>(&result), sizeof(result))); |
| |
| // Check that x^700 × 1 gives -x^699 - x^698 … -1. |
| poly3 x700; |
| memset(&x700, 0, sizeof(x700)); |
| x700.a.v[WORDS_PER_POLY-1] = UINT64_C(1) << (BITS_IN_LAST_WORD - 1); |
| HRSS_poly3_mul(&result, &one, &x700); |
| |
| for (size_t i = 0; i < WORDS_PER_POLY-1; i++) { |
| EXPECT_EQ(CONSTTIME_TRUE_W, result.s.v[i]); |
| EXPECT_EQ(CONSTTIME_TRUE_W, result.a.v[i]); |
| } |
| EXPECT_EQ((UINT64_C(1) << (BITS_IN_LAST_WORD - 1)) - 1, |
| result.s.v[WORDS_PER_POLY - 1]); |
| EXPECT_EQ(result.s.v[WORDS_PER_POLY - 1], result.a.v[WORDS_PER_POLY - 1]); |
| } |
| |
| TEST(HRSS, Basic) { |
| uint8_t generate_key_entropy[HRSS_GENERATE_KEY_BYTES]; |
| for (unsigned i = 0; i < sizeof(generate_key_entropy); i++) { |
| generate_key_entropy[i] = i; |
| } |
| |
| HRSS_public_key pub; |
| HRSS_private_key priv; |
| ASSERT_TRUE(HRSS_generate_key(&pub, &priv, generate_key_entropy)); |
| |
| uint8_t encap_entropy[HRSS_ENCAP_BYTES]; |
| for (unsigned i = 0; i < sizeof(encap_entropy); i++) { |
| encap_entropy[i] = i; |
| } |
| |
| HRSS_public_key pub2; |
| uint8_t pub_bytes[HRSS_PUBLIC_KEY_BYTES]; |
| HRSS_marshal_public_key(pub_bytes, &pub); |
| ASSERT_TRUE(HRSS_parse_public_key(&pub2, pub_bytes)); |
| |
| uint8_t ciphertext[HRSS_CIPHERTEXT_BYTES]; |
| uint8_t shared_key[HRSS_KEY_BYTES]; |
| ASSERT_TRUE(HRSS_encap(ciphertext, shared_key, &pub2, encap_entropy)); |
| |
| uint8_t shared_key2[HRSS_KEY_BYTES]; |
| ASSERT_TRUE(HRSS_decap(shared_key2, &priv, ciphertext, sizeof(ciphertext))); |
| |
| EXPECT_EQ(Bytes(shared_key), Bytes(shared_key2)); |
| } |
| |
| TEST(HRSS, Random) { |
| for (unsigned i = 0; i < 10; i++) { |
| uint8_t generate_key_entropy[HRSS_GENERATE_KEY_BYTES]; |
| RAND_bytes(generate_key_entropy, sizeof(generate_key_entropy)); |
| SCOPED_TRACE(Bytes(generate_key_entropy)); |
| |
| HRSS_public_key pub; |
| HRSS_private_key priv; |
| ASSERT_TRUE(HRSS_generate_key(&pub, &priv, generate_key_entropy)); |
| |
| for (unsigned j = 0; j < 10; j++) { |
| uint8_t encap_entropy[HRSS_ENCAP_BYTES]; |
| RAND_bytes(encap_entropy, sizeof(encap_entropy)); |
| SCOPED_TRACE(Bytes(encap_entropy)); |
| |
| uint8_t ciphertext[HRSS_CIPHERTEXT_BYTES]; |
| uint8_t shared_key[HRSS_KEY_BYTES]; |
| ASSERT_TRUE(HRSS_encap(ciphertext, shared_key, &pub, encap_entropy)); |
| |
| uint8_t shared_key2[HRSS_KEY_BYTES]; |
| ASSERT_TRUE( |
| HRSS_decap(shared_key2, &priv, ciphertext, sizeof(ciphertext))); |
| EXPECT_EQ(Bytes(shared_key), Bytes(shared_key2)); |
| |
| uint32_t offset; |
| RAND_bytes((uint8_t*) &offset, sizeof(offset)); |
| uint8_t bit; |
| RAND_bytes(&bit, sizeof(bit)); |
| ciphertext[offset % sizeof(ciphertext)] ^= (1 << (bit & 7)); |
| ASSERT_TRUE( |
| HRSS_decap(shared_key2, &priv, ciphertext, sizeof(ciphertext))); |
| EXPECT_NE(Bytes(shared_key), Bytes(shared_key2)); |
| } |
| } |
| } |
| |
| TEST(HRSS, NoWritesToConstData) { |
| // Normalisation of some polynomials used to write into the generated keys. |
| // This is fine in a purely ephemeral setting, but triggers TSAN warnings in |
| // more complex ones. |
| uint8_t generate_key_entropy[HRSS_GENERATE_KEY_BYTES]; |
| RAND_bytes(generate_key_entropy, sizeof(generate_key_entropy)); |
| HRSS_public_key pub, pub_orig; |
| HRSS_private_key priv, priv_orig; |
| OPENSSL_memset(&pub, 0xa3, sizeof(pub)); |
| OPENSSL_memset(&priv, 0x3a, sizeof(priv)); |
| ASSERT_TRUE(HRSS_generate_key(&pub, &priv, generate_key_entropy)); |
| OPENSSL_memcpy(&priv_orig, &priv, sizeof(priv)); |
| OPENSSL_memcpy(&pub_orig, &pub, sizeof(pub)); |
| |
| uint8_t ciphertext[HRSS_CIPHERTEXT_BYTES]; |
| uint8_t shared_key[HRSS_KEY_BYTES]; |
| uint8_t encap_entropy[HRSS_ENCAP_BYTES]; |
| RAND_bytes(encap_entropy, sizeof(encap_entropy)); |
| ASSERT_TRUE(HRSS_encap(ciphertext, shared_key, &pub, encap_entropy)); |
| |
| ASSERT_EQ(OPENSSL_memcmp(&pub, &pub_orig, sizeof(pub)), 0); |
| |
| ASSERT_TRUE(HRSS_decap(shared_key, &priv, ciphertext, sizeof(ciphertext))); |
| |
| ASSERT_EQ(OPENSSL_memcmp(&priv, &priv_orig, sizeof(priv)), 0); |
| } |
| |
| TEST(HRSS, Golden) { |
| uint8_t generate_key_entropy[HRSS_GENERATE_KEY_BYTES]; |
| for (unsigned i = 0; i < HRSS_SAMPLE_BYTES; i++) { |
| generate_key_entropy[i] = i; |
| } |
| for (unsigned i = HRSS_SAMPLE_BYTES; i < 2 * HRSS_SAMPLE_BYTES; i++) { |
| generate_key_entropy[i] = 2 + i; |
| } |
| for (unsigned i = 2 * HRSS_SAMPLE_BYTES; i < sizeof(generate_key_entropy); |
| i++) { |
| generate_key_entropy[i] = 4 + i; |
| } |
| |
| HRSS_public_key pub; |
| HRSS_private_key priv; |
| OPENSSL_memset(&pub, 0, sizeof(pub)); |
| OPENSSL_memset(&priv, 0, sizeof(priv)); |
| ASSERT_TRUE(HRSS_generate_key(&pub, &priv, generate_key_entropy)); |
| |
| static const uint8_t kExpectedPub[HRSS_PUBLIC_KEY_BYTES] = { |
| 0x4a, 0x21, 0x39, 0x7c, 0xb4, 0xa6, 0x58, 0x15, 0x35, 0x77, 0xe4, 0x2a, |
| 0x02, 0x79, 0xc0, 0x02, 0xe2, 0x21, 0x27, 0x5f, 0x49, 0xc7, 0x2c, 0x14, |
| 0xb6, 0xe0, 0x67, 0xc2, 0xc7, 0x09, 0x62, 0x0c, 0xe5, 0x23, 0x9c, 0x40, |
| 0xd7, 0x7e, 0xf5, 0x55, 0x5a, 0xa2, 0xd0, 0x9f, 0xd3, 0x8c, 0x67, 0x7b, |
| 0x48, 0xa4, 0x53, 0x8d, 0x39, 0xb1, 0xcc, 0x99, 0x29, 0xf7, 0x83, 0xbf, |
| 0x6f, 0x9b, 0x16, 0x73, 0x23, 0xcc, 0xc3, 0x86, 0x98, 0xb1, 0x7c, 0x53, |
| 0xb1, 0xf5, 0xf4, 0xdd, 0xc8, 0x97, 0x5e, 0xd3, 0x6d, 0x63, 0xce, 0xf3, |
| 0xa2, 0xf6, 0xef, 0x94, 0xed, 0x4a, 0x3e, 0xe6, 0x4b, 0xa2, 0xfb, 0x87, |
| 0xa3, 0xbc, 0x65, 0x1c, 0x17, 0x64, 0x25, 0xa7, 0xb4, 0xa1, 0xe6, 0x84, |
| 0x06, 0x72, 0x0c, 0x28, 0xe8, 0xfc, 0xaa, 0xca, 0xf8, 0x20, 0x79, 0x89, |
| 0xa9, 0xf0, 0x60, 0xdf, 0xd6, 0xd4, 0xe0, 0xaf, 0x99, 0x54, 0x21, 0xaf, |
| 0x76, 0xd5, 0x9a, 0x31, 0x80, 0xea, 0x7f, 0x03, 0x6c, 0x14, 0x74, 0x06, |
| 0x9c, 0x93, 0xe3, 0x93, 0xcc, 0x46, 0x4d, 0x82, 0xda, 0xdf, 0x67, 0xe9, |
| 0x6d, 0x58, 0x2b, 0x49, 0xf3, 0x10, 0x71, 0xa0, 0xc5, 0xec, 0xa0, 0x29, |
| 0xd7, 0x7c, 0x43, 0xd5, 0x05, 0x7e, 0x14, 0x8c, 0x39, 0x28, 0xf9, 0x46, |
| 0x3d, 0xc1, 0x10, 0x6c, 0x2f, 0xaa, 0xca, 0x11, 0x87, 0x6a, 0xe2, 0xb1, |
| 0xf6, 0x31, 0x76, 0xb0, 0xdc, 0x30, 0x8a, 0x97, 0x7d, 0xdc, 0xe4, 0xd1, |
| 0x18, 0xe9, 0x03, 0x91, 0xf5, 0xd2, 0x94, 0x4d, 0x71, 0xf7, 0x35, 0xc8, |
| 0x3e, 0x46, 0xaf, 0xa3, 0xeb, 0x35, 0x07, 0x01, 0x77, 0xc5, 0x58, 0xca, |
| 0x82, 0x67, 0x3e, 0x4f, 0x01, 0x88, 0xa4, 0xa0, 0xea, 0x0a, 0xb7, 0x13, |
| 0x06, 0xbe, 0xb6, 0x61, 0xa4, 0xa2, 0x28, 0xe2, 0x32, 0xcf, 0x25, 0x46, |
| 0xcf, 0xce, 0xf5, 0x57, 0x9b, 0x74, 0x8f, 0xfd, 0xbc, 0xfa, 0x3a, 0xa2, |
| 0x18, 0x22, 0xf1, 0xb1, 0x43, 0x12, 0xe8, 0xe2, 0xe3, 0x06, 0xe6, 0x1c, |
| 0xa7, 0x76, 0x2d, 0x0d, 0xe5, 0x5f, 0xbd, 0x8f, 0xa0, 0x95, 0xcd, 0xe9, |
| 0x28, 0xdb, 0xcc, 0xe5, 0x66, 0x33, 0xd4, 0x4b, 0xf9, 0x0c, 0x42, 0x9b, |
| 0x27, 0xee, 0x11, 0xd0, 0xe3, 0x0b, 0x9d, 0xce, 0x2c, 0x91, 0x7a, 0x0e, |
| 0xb8, 0xde, 0x31, 0x73, 0x86, 0x8e, 0x34, 0x59, 0x93, 0x2e, 0x37, 0x9d, |
| 0xc2, 0x3e, 0x89, 0x0b, 0x47, 0xff, 0xa6, 0x55, 0x21, 0xe6, 0x4f, 0x72, |
| 0x7c, 0xcc, 0xe5, 0xb8, 0x18, 0x2c, 0x10, 0xcb, 0xce, 0x48, 0xa5, 0xc5, |
| 0x26, 0xb6, 0x19, 0x76, 0xc5, 0x38, 0xf0, 0x38, 0x72, 0xec, 0x22, 0xf9, |
| 0x25, 0xde, 0x1c, 0x0c, 0x1b, 0x3e, 0x43, 0xc5, 0x5c, 0x8c, 0xdb, 0xf1, |
| 0x42, 0x66, 0xbc, 0xdf, 0xa0, 0x82, 0x4b, 0xec, 0xe1, 0x50, 0x42, 0x57, |
| 0x84, 0x60, 0xfd, 0x89, 0x12, 0x1b, 0xf6, 0xf9, 0x4d, 0x0d, 0x16, 0xe8, |
| 0xa4, 0xe2, 0x67, 0x2c, 0x8f, 0x22, 0xea, 0xba, 0x46, 0x34, 0xce, 0x97, |
| 0x8b, 0x4c, 0x38, 0x0e, 0x16, 0x82, 0xb6, 0xf3, 0x34, 0x38, 0x07, 0x87, |
| 0x73, 0x2a, 0x3d, 0x80, 0x56, 0x4b, 0x85, 0x67, 0xca, 0x2a, 0x19, 0xb6, |
| 0xb6, 0x2c, 0xfe, 0xd8, 0x02, 0xe5, 0xad, 0xd0, 0x61, 0x79, 0x73, 0xab, |
| 0xda, 0x3b, 0xa4, 0x51, 0xb3, 0xf7, 0x85, 0x99, 0xb2, 0xd0, 0x64, 0x97, |
| 0xb7, 0x3c, 0x0e, 0x58, 0xdf, 0xd2, 0x98, 0x98, 0x18, 0x1a, 0xf5, 0x59, |
| 0xcd, 0xc5, 0x48, 0x17, 0x10, 0x9f, 0xd8, 0x19, 0xbd, 0xd0, 0x42, 0x71, |
| 0x1c, 0x30, 0xc6, 0x76, 0xe9, 0xb0, 0xee, 0xf5, 0x38, 0x05, 0xbe, 0x9b, |
| 0x6c, 0x0d, 0xb0, 0xd0, 0xda, 0x1c, 0x89, 0xbd, 0x40, 0x5d, 0xc2, 0x5a, |
| 0xbe, 0x83, 0xa6, 0xb5, 0x47, 0xa7, 0xf8, 0xb9, 0xbf, 0xa2, 0x65, 0x17, |
| 0x1e, 0xd8, 0x28, 0x42, 0xbe, 0xb0, 0x35, 0xf6, 0x7b, 0x88, 0x38, 0xbe, |
| 0xf5, 0xb5, 0x1b, 0x63, 0x7a, 0x83, 0x92, 0x0d, 0x64, 0xad, 0x92, 0x59, |
| 0x97, 0x55, 0x5c, 0x60, 0xab, 0x48, 0x8e, 0x23, 0x27, 0x22, 0x75, 0x3b, |
| 0x7c, 0x9c, 0x69, 0x13, 0x52, 0x6b, 0xae, 0xfd, 0x38, 0xe5, 0x4b, 0x36, |
| 0x78, 0x55, 0x92, 0xb5, 0x8f, 0x25, 0xde, 0x0e, 0x93, 0xe3, 0x1d, 0x83, |
| 0x62, 0x05, 0x6a, 0x5a, 0xff, 0x7f, 0x77, 0xf7, 0x1b, 0xfc, 0x21, 0x45, |
| 0xf7, 0xb8, 0xfa, 0xcb, 0x00, 0x5e, 0x85, 0xf9, 0x2f, 0x15, 0x2f, 0xcf, |
| 0x17, 0x9e, 0x84, 0xf6, 0xf5, 0x15, 0x6e, 0xdd, 0xb4, 0x73, 0x44, 0xc2, |
| 0x2c, 0x74, 0xae, 0x27, 0x5f, 0x19, 0xe7, 0x51, 0x61, 0xc1, 0x82, 0xce, |
| 0xf1, 0x5b, 0xa0, 0x6f, 0x0b, 0x13, 0x10, 0x68, 0xb7, 0xee, 0xfb, 0x8a, |
| 0x85, 0xe2, 0xd6, 0x17, 0x55, 0x26, 0xa5, 0xc5, 0xb3, 0x94, 0x45, 0xdf, |
| 0x49, 0xe6, 0x50, 0xf8, 0x99, 0xd8, 0x3c, 0xcb, 0x94, 0x80, 0x67, 0x3b, |
| 0x73, 0xac, 0xf6, 0x46, 0x31, 0x63, 0xb3, 0x1b, 0x47, 0xce, 0x40, 0x3f, |
| 0x8c, 0xd0, 0x82, 0xc4, 0x79, 0x3a, 0x7c, 0x48, 0x10, 0xe3, 0x97, 0x98, |
| 0xdc, 0x0b, 0x62, 0x42, 0xfa, 0x26, 0x05, 0xf6, 0x8c, 0x32, 0xa9, 0xb6, |
| 0x2c, 0x4f, 0x85, 0xd2, 0x9b, 0xf3, 0x89, 0x1f, 0x91, 0xca, 0x12, 0x3d, |
| 0xe2, 0xa8, 0x0b, 0xca, 0x64, 0x28, 0x0e, 0xa7, 0xfd, 0xd8, 0xa3, 0xcb, |
| 0x0a, 0xd9, 0x97, 0x2d, 0xc3, 0xf2, 0x39, 0x74, 0xdb, 0xe3, 0x9a, 0x87, |
| 0x1a, 0xe0, 0x33, 0xe3, 0x92, 0xe8, 0xde, 0xb5, 0x08, 0x28, 0xcb, 0xd7, |
| 0xb6, 0x79, 0xec, 0x71, 0xcc, 0xe5, 0xd1, 0x4b, 0x89, 0x96, 0x5f, 0xfa, |
| 0xfd, 0x4b, 0xd0, 0xa8, 0x66, 0x0d, 0xb4, 0xa7, 0x51, 0x56, 0xbc, 0xa7, |
| 0x74, 0x07, 0x7f, 0xae, 0x0e, 0xf6, 0x9c, 0x13, 0xd9, 0xf2, 0xed, 0x12, |
| 0xa9, 0x87, 0x3e, 0xb7, 0x9d, 0x53, 0x8a, 0x82, 0x2d, 0x03, 0x2f, 0xac, |
| 0x94, 0x84, 0x95, 0x00, 0x29, 0x09, 0x01, 0x38, 0x62, 0xff, 0xaf, 0xfd, |
| 0x10, 0x2b, 0x31, 0x03, 0xb2, 0x4f, 0x51, 0xfb, 0x76, 0x27, 0x1e, 0x25, |
| 0x82, 0x79, 0x65, 0x69, 0xfa, 0x24, 0xaf, 0xcb, 0xe8, 0x40, 0x8d, 0x7d, |
| 0xd2, 0x9a, 0x12, 0x69, 0x2f, 0xe4, 0xce, 0x99, 0x98, 0x4f, 0x6c, 0x46, |
| 0xfd, 0x63, 0x40, 0x50, 0xef, 0x22, 0x02, 0x68, 0x2e, 0x53, 0xbb, 0x00, |
| 0xa3, 0x65, 0x61, 0x3e, 0x97, 0xd4, 0x5f, 0xa2, 0xc1, 0x66, 0xcd, 0x04, |
| 0xdc, 0xda, 0x55, 0x10, 0x28, 0x0d, 0x40, 0x11, 0xe6, 0x68, 0xed, 0x68, |
| 0x38, 0x7d, 0x20, 0xc3, 0x97, 0x9d, 0xcb, 0x6e, 0x30, 0xfc, 0xbe, 0x63, |
| 0xe7, 0x72, 0x47, 0x05, 0xf5, 0x0b, 0x7e, 0x66, 0x3b, 0xc5, 0x3a, 0x85, |
| 0x5a, 0xa3, 0xc5, 0x72, 0x9d, 0xb9, 0xc1, 0xb4, 0x80, 0x98, 0x6e, 0x40, |
| 0x86, 0xc9, 0xcb, 0xa3, 0xab, 0x77, 0xc2, 0x56, 0xfc, 0xcb, 0x6e, 0x12, |
| 0xf5, 0x63, 0x62, 0xf8, 0xff, 0x91, 0x15, 0xa7, 0xa1, 0x5e, 0xb6, 0xee, |
| 0x69, 0x4d, 0x5b, 0x5f, 0x4e, 0xfa, 0xd3, 0x61, 0xca, 0xec, 0x14, 0xfd, |
| 0xd9, 0x10, 0xf5, 0x4a, 0x05, 0x5f, 0x29, 0xcb, 0x77, 0x2c, 0x2d, 0xe2, |
| 0x90, 0x67, 0x62, 0x78, 0x75, 0xa9, 0x4e, 0x20, 0x00, 0x0c, 0x91, 0x84, |
| 0xba, 0xed, 0x1c, 0xce, 0xbd, 0x57, 0x4f, 0xa5, 0x2f, 0x59, 0x6c, 0x4c, |
| 0xdf, 0x5f, 0xaa, 0x32, 0xf0, 0x86, 0x09, 0x15, 0x36, 0xc6, 0xe6, 0x6a, |
| 0x24, 0xb4, 0xb3, 0x09, 0xdd, 0x32, 0xc5, 0x95, 0xac, 0x60, 0xb5, 0x09, |
| 0x97, 0x36, 0xa1, 0x3c, 0x8f, 0x0e, 0x90, 0x8e, 0xcd, 0xd0, 0x49, 0x75, |
| 0xf7, 0xf3, 0x80, 0x80, 0xcb, 0x1f, 0xee, 0xf2, 0x6a, 0x2f, 0x19, 0x8c, |
| 0xba, 0x10, 0x00, 0xda, 0x13, 0xef, 0x10, 0x2b, 0xb7, 0xef, 0xfd, 0xd1, |
| 0xe0, 0x7c, 0xf8, 0x46, 0x01, 0x69, 0x9b, 0x99, 0x80, 0x51, 0x1f, 0x74, |
| 0x3b, 0x67, 0x93, 0x18, 0x5e, 0xd4, 0x34, 0x6c, 0x81, 0x76, 0x02, 0xef, |
| 0x91, 0xa4, 0x22, 0x2a, 0x23, 0x1b, 0x58, 0x43, 0x75, 0x65, 0x13, 0x87, |
| 0x98, 0x60, 0x14, 0x25, 0x28, 0x67, 0xa3, 0x34, 0x8c, 0xe0, 0xd5, 0xd3, |
| 0x51, 0x33, 0x68, 0xff, 0x65, 0x59, 0x5a, 0xa7, 0xb2, 0x6b, 0x01, 0xad, |
| 0x70, 0x06, 0x73, 0x01, 0x51, 0x1b, 0xe1, 0xec, 0x28, 0x2f, 0x8a, 0x85, |
| 0x5a, 0x10, 0xd0, 0x0e, 0x6b, 0x35, 0x45, 0x2e, 0x61, 0xdd, 0x77, 0x20, |
| 0xb1, 0x35, 0x3b, 0xa8, 0xdd, 0x8a, 0xe2, 0x15, 0x79, 0x07, |
| }; |
| uint8_t pub_bytes[HRSS_PUBLIC_KEY_BYTES]; |
| HRSS_marshal_public_key(pub_bytes, &pub); |
| EXPECT_EQ(Bytes(pub_bytes), Bytes(kExpectedPub)); |
| |
| uint8_t encap_entropy[HRSS_ENCAP_BYTES]; |
| for (size_t i = 0; i < sizeof(encap_entropy); i++) { |
| encap_entropy[i] = 31 + i; |
| } |
| uint8_t ciphertext[HRSS_CIPHERTEXT_BYTES]; |
| uint8_t shared_key[HRSS_KEY_BYTES]; |
| ASSERT_TRUE(HRSS_encap(ciphertext, shared_key, &pub, encap_entropy)); |
| |
| static const uint8_t kExpectedCiphertext[HRSS_CIPHERTEXT_BYTES] = { |
| 0xe0, 0xc0, 0x77, 0xeb, 0x7a, 0x48, 0x7d, 0x74, 0x4e, 0x4f, 0x6d, 0xb9, |
| 0x5c, 0x18, 0xe9, 0x5b, 0x47, 0x6c, 0x78, 0x9d, 0x98, 0x02, 0x84, 0x9f, |
| 0xf2, 0x45, 0x43, 0x86, 0x0e, 0xc6, 0x93, 0x48, 0xd8, 0x20, 0xff, 0x82, |
| 0x38, 0x9e, 0x78, 0xb4, 0x2c, 0xb3, 0x42, 0xe4, 0xb3, 0xab, 0xdf, 0xed, |
| 0x65, 0x24, 0x0c, 0xa5, 0x95, 0x2c, 0xbf, 0x4c, 0x28, 0xfc, 0xb8, 0xe7, |
| 0xc6, 0xbc, 0x76, 0xa0, 0xf5, 0x3f, 0x29, 0x73, 0x23, 0xf1, 0x6c, 0x10, |
| 0x7c, 0x08, 0x8e, 0x16, 0x3a, 0xda, 0x17, 0xa3, 0x0d, 0x46, 0x44, 0xee, |
| 0x6f, 0x70, 0xf1, 0x88, 0x51, 0x35, 0x33, 0x91, 0x76, 0xeb, 0x98, 0xc1, |
| 0x04, 0xdb, 0x97, 0xab, 0x88, 0xb9, 0x04, 0x87, 0xd9, 0xb8, 0x34, 0xd3, |
| 0x38, 0xe7, 0x90, 0x05, 0x2e, 0x45, 0xe0, 0xac, 0x36, 0x0c, 0x59, 0x58, |
| 0xb1, 0xf5, 0x65, 0x6d, 0x28, 0x1a, 0x39, 0xd9, 0xd2, 0x83, 0x17, 0xee, |
| 0xeb, 0x6f, 0x7d, 0x29, 0x3c, 0x79, 0xcf, 0x48, 0xf1, 0x6d, 0x35, 0xc2, |
| 0x8c, 0xe8, 0x67, 0x18, 0xcc, 0x9d, 0x9b, 0x8d, 0x07, 0x7a, 0x4e, 0x56, |
| 0xa8, 0x00, 0x2e, 0x67, 0x67, 0xbb, 0xc1, 0xda, 0x4a, 0x7b, 0x9f, 0xa6, |
| 0x4a, 0x5c, 0x40, 0xcc, 0xe4, 0xdd, 0xf5, 0xc0, 0x44, 0xfe, 0xa5, 0xa2, |
| 0x1c, 0xdc, 0xf2, 0x31, 0xf4, 0x01, 0x1f, 0x69, 0x15, 0x7e, 0x8c, 0x54, |
| 0xb6, 0x47, 0x0c, 0x1d, 0x9f, 0x1a, 0xfa, 0xf7, 0x46, 0xa3, 0xcb, 0x34, |
| 0x2c, 0x18, 0x45, 0x65, 0xc4, 0xf2, 0x0e, 0xf8, 0xc7, 0x96, 0x1d, 0x29, |
| 0x5c, 0x90, 0xd3, 0xdf, 0xb2, 0x8e, 0x21, 0xf9, 0x15, 0x40, 0x7e, 0xd3, |
| 0x84, 0x52, 0x1d, 0xd9, 0xee, 0xed, 0xe8, 0x71, 0x1c, 0xdb, 0x48, 0xf5, |
| 0x20, 0x82, 0xc4, 0x61, 0xfd, 0x6d, 0x71, 0x9f, 0xd8, 0x03, 0x90, 0x8e, |
| 0xfc, 0xed, 0x4d, 0xab, 0x6e, 0xb2, 0xe9, 0x66, 0xfd, 0xcc, 0x3a, 0xa3, |
| 0x99, 0x53, 0x35, 0x76, 0xea, 0x08, 0x88, 0xba, 0xf0, 0xb7, 0x53, 0xf3, |
| 0x4c, 0x1a, 0x8f, 0x7f, 0xe4, 0x1b, 0x8b, 0xfc, 0x99, 0x3e, 0x4c, 0xa9, |
| 0xd9, 0x17, 0x10, 0x64, 0x60, 0xfd, 0x81, 0x76, 0xe6, 0x37, 0xb0, 0xe3, |
| 0x3e, 0xc0, 0xf7, 0x06, 0x7e, 0x34, 0xa5, 0xf4, 0xb9, 0x5f, 0x66, 0xe6, |
| 0x81, 0xc8, 0x5e, 0xb2, 0x26, 0x6b, 0x8c, 0xad, 0xd0, 0x94, 0x01, 0x22, |
| 0xf6, 0xbe, 0x1a, 0x0b, 0x34, 0xfc, 0x33, 0xc0, 0x84, 0xa5, 0xe0, 0x12, |
| 0x8a, 0x08, 0xae, 0x8a, 0xaf, 0x55, 0x0c, 0x34, 0x4b, 0x2b, 0xdd, 0xa3, |
| 0x7c, 0xc0, 0xed, 0xe8, 0x8d, 0x98, 0x47, 0x7c, 0x81, 0x25, 0x1b, 0x9f, |
| 0x08, 0x26, 0x9d, 0xfc, 0x19, 0x8e, 0x39, 0xc4, 0x1a, 0x3c, 0x42, 0x70, |
| 0x49, 0x37, 0x57, 0x87, 0x0f, 0x76, 0xb1, 0xc4, 0xbe, 0x25, 0x5e, 0x1c, |
| 0x06, 0x57, 0xc6, 0x88, 0x34, 0x28, 0xdf, 0x60, 0x33, 0x09, 0xc5, 0xcc, |
| 0xf4, 0xc4, 0x33, 0x85, 0x8b, 0x48, 0xe8, 0x27, 0xb7, 0x72, 0x22, 0x44, |
| 0xff, 0xe7, 0x89, 0xf9, 0x71, 0x99, 0xed, 0x62, 0x47, 0xb0, 0x22, 0x9e, |
| 0xa6, 0x7c, 0xaf, 0xa9, 0x98, 0x2b, 0x5c, 0x8a, 0x42, 0x34, 0x77, 0xa3, |
| 0xc8, 0x13, 0x1e, 0xcf, 0x32, 0xa7, 0x70, 0xa8, 0xad, 0xc1, 0x66, 0x5c, |
| 0x8f, 0xaf, 0x14, 0x6d, 0xc4, 0x45, 0x05, 0xcd, 0xcb, 0x80, 0xfa, 0x0e, |
| 0xa6, 0xca, 0x72, 0x86, 0xd2, 0xb7, 0x39, 0x26, 0x77, 0xf8, 0x14, 0xd0, |
| 0xcd, 0xdd, 0xf7, 0xdc, 0xda, 0x25, 0x8e, 0x3c, 0x21, 0xfd, 0xef, 0x92, |
| 0xee, 0x52, 0xf7, 0xc3, 0xc7, 0xe2, 0x2d, 0x1c, 0x57, 0x5a, 0xba, 0xd8, |
| 0xaa, 0x0d, 0x09, 0xa7, 0xb3, 0xcc, 0xa1, 0x5d, 0xdb, 0x04, 0x21, 0x82, |
| 0xef, 0xba, 0xc2, 0xc8, 0x54, 0xb1, 0xbe, 0xd7, 0x2a, 0x91, 0xd8, 0xeb, |
| 0x72, 0x54, 0xc1, 0x74, 0x24, 0x24, 0x5a, 0x03, 0xf7, 0xcd, 0xab, 0x91, |
| 0xd1, 0x63, 0xf1, 0x60, 0x9f, 0x22, 0x07, 0xad, 0x10, 0x2b, 0x97, 0x1c, |
| 0x6f, 0xce, 0xc0, 0x29, 0xc2, 0xb2, 0xb8, 0x1b, 0xbd, 0x14, 0xc8, 0xb9, |
| 0x80, 0x66, 0xc1, 0x86, 0xfc, 0x93, 0x5f, 0x6e, 0x0b, 0x7a, 0x7b, 0x8e, |
| 0x42, 0x8c, 0x08, 0xd1, 0x60, 0xb9, 0xf8, 0x66, 0x24, 0x7d, 0x88, 0x58, |
| 0x2f, 0xd2, 0x52, 0x75, 0x3a, 0x8a, 0x1c, 0xfa, 0x1e, 0xa1, 0x1c, 0x91, |
| 0x46, 0x79, 0x9a, 0xe5, 0x8a, 0xdd, 0xc2, 0x75, 0xed, 0x0d, 0xb8, 0x2b, |
| 0x4f, 0x8f, 0x95, 0xca, 0xce, 0x21, 0xa4, 0x7a, 0x0d, 0x14, 0x7f, 0x2d, |
| 0x98, 0xf0, 0x88, 0xc3, 0x6f, 0xad, 0xb5, 0x04, 0x24, 0x91, 0x41, 0x65, |
| 0xd3, 0xa5, 0x7e, 0xfb, 0x53, 0x1c, 0xcc, 0xd0, 0xf7, 0x7c, 0x91, 0x08, |
| 0x0e, 0xdd, 0xd4, 0x6c, 0x73, 0xaa, 0xa5, 0x7a, 0xd2, 0x24, 0xc9, 0x3b, |
| 0x6f, 0xda, 0x06, 0x8a, 0xdb, 0x2e, 0xa8, 0xe9, 0xe1, 0x3e, 0x08, 0xee, |
| 0xbe, 0x96, 0x65, 0x72, 0x68, 0x6f, 0xf7, 0x50, 0xe7, 0xa7, 0x18, 0xda, |
| 0xc2, 0x94, 0xda, 0xe3, 0xbc, 0xca, 0x03, 0xd8, 0xf7, 0x7a, 0xcc, 0x44, |
| 0xa1, 0x60, 0xa8, 0x7f, 0xdc, 0xef, 0x80, 0xf4, 0x62, 0xc6, 0x06, 0x4e, |
| 0xb6, 0xac, 0x77, 0x17, 0xb7, 0xb3, 0x3e, 0xf8, 0x6d, 0x8a, 0x61, 0x83, |
| 0x3a, 0xfd, 0xbb, 0x93, 0x5b, 0x1a, 0x33, 0xf8, 0xee, 0x7d, 0x9e, 0x5c, |
| 0xf8, 0xc9, 0xd5, 0x3e, 0x3d, 0x42, 0x9b, 0xe5, 0x0d, 0xec, 0xc9, 0x0f, |
| 0x6f, 0x03, 0xb0, 0x41, 0x85, 0xb9, 0xfe, 0xf9, 0xb1, 0xb4, 0xc3, 0xd9, |
| 0x13, 0x03, 0xfa, 0x0d, 0xe7, 0xd1, 0xb4, 0xc8, 0xf6, 0xb5, 0x11, 0x7a, |
| 0x92, 0x09, 0x21, 0x7b, 0xa9, 0x89, 0x4c, 0x19, 0x90, 0x0d, 0x96, 0x32, |
| 0x4f, 0x77, 0xfc, 0x7f, 0x8c, 0xa3, 0x39, 0x2a, 0x56, 0xe6, 0x5c, 0xd1, |
| 0x86, 0x0a, 0x72, 0xf4, 0xa3, 0x1b, 0xa5, 0x30, 0x04, 0x3c, 0x15, 0x20, |
| 0x4b, 0xe4, 0x2d, 0x1a, 0xf1, 0x44, 0x48, 0xfc, 0xda, 0xc1, 0x41, 0xdb, |
| 0x71, 0xfd, 0x92, 0x00, 0x53, 0xe4, 0x70, 0xd0, 0xba, 0xf6, 0xef, 0x17, |
| 0x72, 0xb8, 0xea, 0x6d, 0x41, 0x16, 0x4d, 0x1f, 0x59, 0x18, 0xbd, 0x1f, |
| 0xc5, 0x6b, 0x6a, 0x6c, 0x2e, 0xa6, 0x1a, 0x33, 0x74, 0x8b, 0xc5, 0x9f, |
| 0x16, 0x01, 0x77, 0x7e, 0x37, 0xe7, 0x63, 0xe1, 0xa3, 0x8c, 0x1f, 0x71, |
| 0xe9, 0x4f, 0xad, 0x15, 0x8b, 0xf3, 0xc9, 0xac, 0xdc, 0x19, 0xad, 0x92, |
| 0x18, 0x00, 0xf6, 0xa1, 0xd5, 0x97, 0xa3, 0x3d, 0x9e, 0x78, 0x02, 0xc3, |
| 0x8f, 0x75, 0xd8, 0xad, 0x22, 0xbf, 0xef, 0x19, 0x5d, 0x15, 0x34, 0x1a, |
| 0x7c, 0x9b, 0xaf, 0xd4, 0xf2, 0xf9, 0x5f, 0x72, 0x88, 0x9c, 0xe4, 0x58, |
| 0xda, 0x46, 0x8f, 0x79, 0x30, 0x2b, 0xd9, 0x3b, 0xbc, 0xab, 0x28, 0x77, |
| 0x75, 0x0e, 0x2c, 0x23, 0x47, 0x95, 0x14, 0xeb, 0xf0, 0x4a, 0x3e, 0x53, |
| 0x93, 0xa7, 0xf4, 0x82, 0x9c, 0x34, 0x8b, 0x80, 0x42, 0xb2, 0xa7, 0xb0, |
| 0x7c, 0x6c, 0xe1, 0x07, 0xf4, 0x34, 0x3e, 0xed, 0x33, 0x9c, 0xb3, 0xde, |
| 0xa5, 0x91, 0x61, 0x25, 0x8e, 0x8c, 0x54, 0x56, 0xbe, 0x1a, 0xac, 0x17, |
| 0xd2, 0x7a, 0xa4, 0x12, 0x54, 0x2a, 0x51, 0xd0, 0x0e, 0xd1, 0xc1, 0x44, |
| 0x50, 0x05, 0x39, 0xa7, 0xb6, 0x14, 0x45, 0xca, 0xf8, 0x5f, 0x06, 0x6b, |
| 0x5d, 0x5e, 0xc7, 0xe9, 0x27, 0x6f, 0x38, 0xe0, 0x31, 0xcf, 0xf8, 0xcc, |
| 0x2e, 0xb9, 0x4a, 0x10, 0x1b, 0xb4, 0x34, 0x4b, 0x90, 0xbb, 0xf2, 0xe0, |
| 0x3c, 0x79, 0x7f, 0x39, 0x59, 0x0c, 0x01, 0x4c, 0x0d, 0x2d, 0x71, 0xf1, |
| 0xbd, 0xda, 0x1a, 0x78, 0xcf, 0x26, 0x6f, 0xb5, 0xa9, 0x07, 0x20, 0xe6, |
| 0x8c, 0xd0, 0xad, 0xd4, 0xca, 0x24, 0x6c, 0xc5, 0x28, 0x1d, 0xfb, 0xcc, |
| 0xe7, 0x93, 0x72, 0x99, 0x61, 0x63, 0x60, 0x4c, 0x5c, 0xa9, 0xb6, 0x15, |
| 0x32, 0xa4, 0xbc, 0x1f, 0xf6, 0x63, 0x61, 0x2c, 0x26, 0xa7, 0x0e, 0x5f, |
| 0x1b, 0x25, 0xce, 0x3f, 0x64, 0xdf, 0x6d, 0xb0, 0x8f, 0xd2, 0xe9, 0x3b, |
| 0x35, 0xd0, 0x59, 0x81, 0x22, 0xf1, 0x65, 0x86, 0x15, 0x10, 0xe8, 0xa7, |
| 0xa1, 0x6f, 0xb4, 0x34, 0x1c, 0x79, 0xd5, 0x9e, 0x8d, 0xc8, 0xa5, 0xbb, |
| 0x82, 0x71, 0x81, 0x00, 0x34, 0x55, 0x6b, 0x96, 0x56, 0x13, 0x0e, 0xe7, |
| 0x39, 0xa2, 0x6f, 0xbe, 0x54, 0x2a, 0x13, 0x03, 0x13, 0xd2, 0x1d, 0x71, |
| 0x9a, 0xbe, 0x09, 0x00, 0xe1, 0x8d, 0x59, 0xb5, 0x44, 0x02, |
| }; |
| EXPECT_EQ(Bytes(ciphertext), Bytes(kExpectedCiphertext)); |
| |
| static const uint8_t kExpectedSharedKey[HRSS_KEY_BYTES] = { |
| 0x57, 0xf2, 0x77, 0xb2, 0xf3, 0x7f, 0xd0, 0x71, 0xb6, 0x7e, 0x64, |
| 0x0f, 0x85, 0x1f, 0x6d, 0x3b, 0xd1, 0x7a, 0x6e, 0x01, 0x04, 0xde, |
| 0x0f, 0x9e, 0x03, 0x95, 0x55, 0x60, 0xce, 0xda, 0x32, 0x71, |
| }; |
| EXPECT_EQ(Bytes(shared_key), Bytes(kExpectedSharedKey)); |
| |
| ASSERT_TRUE(HRSS_decap(shared_key, &priv, ciphertext, sizeof(ciphertext))); |
| EXPECT_EQ(Bytes(shared_key, sizeof(shared_key)), |
| Bytes(kExpectedSharedKey, sizeof(kExpectedSharedKey))); |
| |
| // Corrupt the ciphertext and ensure that the failure key is constant. |
| ciphertext[50] ^= 4; |
| ASSERT_TRUE(HRSS_decap(shared_key, &priv, ciphertext, sizeof(ciphertext))); |
| |
| static const uint8_t kExpectedFailureKey[HRSS_KEY_BYTES] = { |
| 0x13, 0xf7, 0xed, 0x51, 0x00, 0xbc, 0xca, 0x29, 0xdf, 0xb0, 0xd0, |
| 0x5e, 0xa1, 0x9d, 0x15, 0xb2, 0xf6, 0x23, 0x94, 0xfd, 0x93, 0x74, |
| 0x14, 0x46, 0x85, 0x61, 0x8b, 0x87, 0x30, 0xd3, 0x8d, 0xad, |
| }; |
| EXPECT_EQ(Bytes(shared_key), Bytes(kExpectedFailureKey)); |
| } |
| |
| #if defined(POLY_RQ_MUL_ASM) && defined(SUPPORTS_ABI_TEST) |
| TEST(HRSS, ABI) { |
| if (!CRYPTO_is_AVX2_capable()) { |
| fprintf(stderr, "Skipping ABI test due to lack of AVX2 support.\n"); |
| return; |
| } |
| |
| alignas(16) uint16_t r[N + 3]; |
| alignas(16) uint16_t a[N + 3] = {0}; |
| alignas(16) uint16_t b[N + 3] = {0}; |
| |
| uint8_t kCanary[256]; |
| static_assert(sizeof(kCanary) % 32 == 0, "needed for alignment"); |
| memset(kCanary, 42, sizeof(kCanary)); |
| |
| auto scratch_buf = std::make_unique<uint8_t[]>( |
| 32 + sizeof(kCanary) + POLY_MUL_RQ_SCRATCH_SPACE + sizeof(kCanary)); |
| uint8_t *scratch = |
| static_cast<uint8_t *>(align_pointer(scratch_buf.get(), 32)); |
| OPENSSL_memcpy(scratch, kCanary, sizeof(kCanary)); |
| OPENSSL_memcpy(scratch + sizeof(kCanary) + POLY_MUL_RQ_SCRATCH_SPACE, kCanary, |
| sizeof(kCanary)); |
| |
| // The function should not touch more than |POLY_MUL_RQ_SCRATCH_SPACE| bytes |
| // of |scratch|. |
| CHECK_ABI(poly_Rq_mul, r, a, b, &scratch[sizeof(kCanary)]); |
| |
| EXPECT_EQ(Bytes(scratch, sizeof(kCanary)), Bytes(kCanary)); |
| EXPECT_EQ(Bytes(scratch + sizeof(kCanary) + POLY_MUL_RQ_SCRATCH_SPACE, |
| sizeof(kCanary)), |
| Bytes(kCanary)); |
| } |
| #endif // POLY_RQ_MUL_ASM && SUPPORTS_ABI_TEST |