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cli/vendor/aws-lc-sys/aws-lc/crypto/fipsmodule/hkdf/hkdf_test.cc

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// Copyright (c) 2014, Google Inc.
// SPDX-License-Identifier: ISC
#include <openssl/digest.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/hkdf.h>
#include <openssl/kdf.h>
#include <gtest/gtest.h>
#include "../../test/file_test.h"
#include "../../test/test_util.h"
#include "../../test/wycheproof_util.h"
struct HKDFTestVector {
const EVP_MD *(*md_func)(void);
const uint8_t ikm[80];
const size_t ikm_len;
const uint8_t salt[80];
const size_t salt_len;
const uint8_t info[80];
const size_t info_len;
const uint8_t prk[EVP_MAX_MD_SIZE];
const size_t prk_len;
const size_t out_len;
const uint8_t out[82];
};
// These test vectors are from RFC 5869.
static const HKDFTestVector kTests[] = {
{
EVP_sha256,
{
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
}, 22,
{
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c,
}, 13,
{
0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9,
}, 10,
{
0x07, 0x77, 0x09, 0x36, 0x2c, 0x2e, 0x32, 0xdf, 0x0d, 0xdc, 0x3f, 0x0d,
0xc4, 0x7b, 0xba, 0x63, 0x90, 0xb6, 0xc7, 0x3b, 0xb5, 0x0f, 0x9c, 0x31,
0x22, 0xec, 0x84, 0x4a, 0xd7, 0xc2, 0xb3, 0xe5,
}, 32,
42, {
0x3c, 0xb2, 0x5f, 0x25, 0xfa, 0xac, 0xd5, 0x7a, 0x90, 0x43, 0x4f, 0x64,
0xd0, 0x36, 0x2f, 0x2a, 0x2d, 0x2d, 0x0a, 0x90, 0xcf, 0x1a, 0x5a, 0x4c,
0x5d, 0xb0, 0x2d, 0x56, 0xec, 0xc4, 0xc5, 0xbf, 0x34, 0x00, 0x72, 0x08,
0xd5, 0xb8, 0x87, 0x18, 0x58, 0x65
}
},
{
EVP_sha256,
{
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23,
0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b,
0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f
}, 80,
{
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b,
0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83,
0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b,
0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf
}, 80,
{
0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb,
0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3,
0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb,
0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
}, 80,
{
0x06, 0xa6, 0xb8, 0x8c, 0x58, 0x53, 0x36, 0x1a, 0x06, 0x10, 0x4c, 0x9c,
0xeb, 0x35, 0xb4, 0x5c, 0xef, 0x76, 0x00, 0x14, 0x90, 0x46, 0x71, 0x01,
0x4a, 0x19, 0x3f, 0x40, 0xc1, 0x5f, 0xc2, 0x44,
}, 32,
82, {
0xb1, 0x1e, 0x39, 0x8d, 0xc8, 0x03, 0x27, 0xa1, 0xc8, 0xe7, 0xf7, 0x8c,
0x59, 0x6a, 0x49, 0x34, 0x4f, 0x01, 0x2e, 0xda, 0x2d, 0x4e, 0xfa, 0xd8,
0xa0, 0x50, 0xcc, 0x4c, 0x19, 0xaf, 0xa9, 0x7c, 0x59, 0x04, 0x5a, 0x99,
0xca, 0xc7, 0x82, 0x72, 0x71, 0xcb, 0x41, 0xc6, 0x5e, 0x59, 0x0e, 0x09,
0xda, 0x32, 0x75, 0x60, 0x0c, 0x2f, 0x09, 0xb8, 0x36, 0x77, 0x93, 0xa9,
0xac, 0xa3, 0xdb, 0x71, 0xcc, 0x30, 0xc5, 0x81, 0x79, 0xec, 0x3e, 0x87,
0xc1, 0x4c, 0x01, 0xd5, 0xc1, 0xf3, 0x43, 0x4f, 0x1d, 0x87
}
},
{
EVP_sha256,
{
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
}, 22,
{
0,
}, 0,
{
0,
}, 0,
{
0x19, 0xef, 0x24, 0xa3, 0x2c, 0x71, 0x7b, 0x16, 0x7f, 0x33, 0xa9, 0x1d,
0x6f, 0x64, 0x8b, 0xdf, 0x96, 0x59, 0x67, 0x76, 0xaf, 0xdb, 0x63, 0x77,
0xac, 0x43, 0x4c, 0x1c, 0x29, 0x3c, 0xcb, 0x04
}, 32,
42, {
0x8d, 0xa4, 0xe7, 0x75, 0xa5, 0x63, 0xc1, 0x8f, 0x71, 0x5f, 0x80, 0x2a,
0x06, 0x3c, 0x5a, 0x31, 0xb8, 0xa1, 0x1f, 0x5c, 0x5e, 0xe1, 0x87, 0x9e,
0xc3, 0x45, 0x4e, 0x5f, 0x3c, 0x73, 0x8d, 0x2d, 0x9d, 0x20, 0x13, 0x95,
0xfa, 0xa4, 0xb6, 0x1a, 0x96, 0xc8
}
},
{
EVP_sha1,
{
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
}, 11,
{
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c,
}, 13,
{
0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9,
}, 10,
{
0x9b, 0x6c, 0x18, 0xc4, 0x32, 0xa7, 0xbf, 0x8f, 0x0e, 0x71, 0xc8, 0xeb,
0x88, 0xf4, 0xb3, 0x0b, 0xaa, 0x2b, 0xa2, 0x43
}, 20,
42, {
0x08, 0x5a, 0x01, 0xea, 0x1b, 0x10, 0xf3, 0x69, 0x33, 0x06, 0x8b, 0x56,
0xef, 0xa5, 0xad, 0x81, 0xa4, 0xf1, 0x4b, 0x82, 0x2f, 0x5b, 0x09, 0x15,
0x68, 0xa9, 0xcd, 0xd4, 0xf1, 0x55, 0xfd, 0xa2, 0xc2, 0x2e, 0x42, 0x24,
0x78, 0xd3, 0x05, 0xf3, 0xf8, 0x96
}
},
{
EVP_sha1,
{
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23,
0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b,
0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f
}, 80,
{
0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b,
0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83,
0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b,
0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf
}, 80,
{
0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb,
0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3,
0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb,
0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
}, 80,
{
0x8a, 0xda, 0xe0, 0x9a, 0x2a, 0x30, 0x70, 0x59, 0x47, 0x8d, 0x30, 0x9b,
0x26, 0xc4, 0x11, 0x5a, 0x22, 0x4c, 0xfa, 0xf6,
}, 20,
82, {
0x0b, 0xd7, 0x70, 0xa7, 0x4d, 0x11, 0x60, 0xf7, 0xc9, 0xf1, 0x2c, 0xd5,
0x91, 0x2a, 0x06, 0xeb, 0xff, 0x6a, 0xdc, 0xae, 0x89, 0x9d, 0x92, 0x19,
0x1f, 0xe4, 0x30, 0x56, 0x73, 0xba, 0x2f, 0xfe, 0x8f, 0xa3, 0xf1, 0xa4,
0xe5, 0xad, 0x79, 0xf3, 0xf3, 0x34, 0xb3, 0xb2, 0x02, 0xb2, 0x17, 0x3c,
0x48, 0x6e, 0xa3, 0x7c, 0xe3, 0xd3, 0x97, 0xed, 0x03, 0x4c, 0x7f, 0x9d,
0xfe, 0xb1, 0x5c, 0x5e, 0x92, 0x73, 0x36, 0xd0, 0x44, 0x1f, 0x4c, 0x43,
0x00, 0xe2, 0xcf, 0xf0, 0xd0, 0x90, 0x0b, 0x52, 0xd3, 0xb4
}
},
{
EVP_sha1,
{
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
}, 22,
{
0,
}, 0,
{
0,
}, 0,
{
0xda, 0x8c, 0x8a, 0x73, 0xc7, 0xfa, 0x77, 0x28, 0x8e, 0xc6, 0xf5, 0xe7,
0xc2, 0x97, 0x78, 0x6a, 0xa0, 0xd3, 0x2d, 0x01,
}, 20,
42, {
0x0a, 0xc1, 0xaf, 0x70, 0x02, 0xb3, 0xd7, 0x61, 0xd1, 0xe5, 0x52, 0x98,
0xda, 0x9d, 0x05, 0x06, 0xb9, 0xae, 0x52, 0x05, 0x72, 0x20, 0xa3, 0x06,
0xe0, 0x7b, 0x6b, 0x87, 0xe8, 0xdf, 0x21, 0xd0, 0xea, 0x00, 0x03, 0x3d,
0xe0, 0x39, 0x84, 0xd3, 0x49, 0x18
}
},
{
EVP_sha1,
{
0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
}, 22,
{
0,
}, 0,
{
0,
}, 0,
{
0x2a, 0xdc, 0xca, 0xda, 0x18, 0x77, 0x9e, 0x7c, 0x20, 0x77, 0xad, 0x2e,
0xb1, 0x9d, 0x3f, 0x3e, 0x73, 0x13, 0x85, 0xdd,
}, 20,
42, {
0x2c, 0x91, 0x11, 0x72, 0x04, 0xd7, 0x45, 0xf3, 0x50, 0x0d, 0x63, 0x6a,
0x62, 0xf6, 0x4f, 0x0a, 0xb3, 0xba, 0xe5, 0x48, 0xaa, 0x53, 0xd4, 0x23,
0xb0, 0xd1, 0xf2, 0x7e, 0xbb, 0xa6, 0xf5, 0xe5, 0x67, 0x3a, 0x08, 0x1d,
0x70, 0xcc, 0xe7, 0xac, 0xfc, 0x48
}
},
};
TEST(HKDFTest, TestVectors) {
for (size_t i = 0; i < OPENSSL_ARRAY_SIZE(kTests); i++) {
SCOPED_TRACE(i);
const HKDFTestVector *test = &kTests[i];
uint8_t prk[EVP_MAX_MD_SIZE];
size_t prk_len;
ASSERT_TRUE(HKDF_extract(prk, &prk_len, test->md_func(), test->ikm,
test->ikm_len, test->salt, test->salt_len));
EXPECT_EQ(Bytes(test->prk, test->prk_len), Bytes(prk, prk_len));
uint8_t buf[82];
ASSERT_TRUE(HKDF_expand(buf, test->out_len, test->md_func(), prk, prk_len,
test->info, test->info_len));
EXPECT_EQ(Bytes(test->out, test->out_len), Bytes(buf, test->out_len));
ASSERT_TRUE(HKDF(buf, test->out_len, test->md_func(), test->ikm,
test->ikm_len, test->salt, test->salt_len, test->info,
test->info_len));
EXPECT_EQ(Bytes(test->out, test->out_len), Bytes(buf, test->out_len));
// Repeat the test with the OpenSSL compatibility |EVP_PKEY_derive| API.
bssl::UniquePtr<EVP_PKEY_CTX> ctx(
EVP_PKEY_CTX_new_id(EVP_PKEY_HKDF, nullptr));
ASSERT_TRUE(ctx);
ASSERT_TRUE(EVP_PKEY_derive_init(ctx.get()));
ASSERT_TRUE(
EVP_PKEY_CTX_hkdf_mode(ctx.get(), EVP_PKEY_HKDEF_MODE_EXTRACT_ONLY));
ASSERT_TRUE(EVP_PKEY_CTX_set_hkdf_md(ctx.get(), test->md_func()));
ASSERT_TRUE(
EVP_PKEY_CTX_set1_hkdf_key(ctx.get(), test->ikm, test->ikm_len));
ASSERT_TRUE(
EVP_PKEY_CTX_set1_hkdf_salt(ctx.get(), test->salt, test->salt_len));
for (bool copy_ctx : {false, true}) {
SCOPED_TRACE(copy_ctx);
bssl::UniquePtr<EVP_PKEY_CTX> copy;
EVP_PKEY_CTX *use_ctx = ctx.get();
if (copy_ctx) {
copy.reset(EVP_PKEY_CTX_dup(ctx.get()));
ASSERT_TRUE(copy);
use_ctx = copy.get();
}
// A null output should report the length.
prk_len = 0;
ASSERT_TRUE(EVP_PKEY_derive(use_ctx, nullptr, &prk_len));
EXPECT_EQ(prk_len, test->prk_len);
// Too small of a buffer should cleanly fail.
prk_len = test->prk_len - 1;
EXPECT_FALSE(EVP_PKEY_derive(use_ctx, prk, &prk_len));
ERR_clear_error();
// Test the correct buffer size.
OPENSSL_memset(prk, 0, sizeof(prk));
prk_len = test->prk_len;
ASSERT_TRUE(EVP_PKEY_derive(use_ctx, prk, &prk_len));
EXPECT_EQ(Bytes(test->prk, test->prk_len), Bytes(prk, prk_len));
// Test a larger buffer than necessary.
OPENSSL_memset(prk, 0, sizeof(prk));
prk_len = test->prk_len + 1;
ASSERT_TRUE(EVP_PKEY_derive(use_ctx, prk, &prk_len));
EXPECT_EQ(Bytes(test->prk, test->prk_len), Bytes(prk, prk_len));
}
ctx.reset(EVP_PKEY_CTX_new_id(EVP_PKEY_HKDF, nullptr));
ASSERT_TRUE(ctx);
ASSERT_TRUE(EVP_PKEY_derive_init(ctx.get()));
ASSERT_TRUE(
EVP_PKEY_CTX_hkdf_mode(ctx.get(), EVP_PKEY_HKDEF_MODE_EXPAND_ONLY));
ASSERT_TRUE(EVP_PKEY_CTX_set_hkdf_md(ctx.get(), test->md_func()));
ASSERT_TRUE(
EVP_PKEY_CTX_set1_hkdf_key(ctx.get(), test->prk, test->prk_len));
// |info| can be passed in multiple parts.
size_t half = test->info_len / 2;
ASSERT_TRUE(EVP_PKEY_CTX_add1_hkdf_info(ctx.get(), test->info, half));
ASSERT_TRUE(EVP_PKEY_CTX_add1_hkdf_info(ctx.get(), test->info + half,
test->info_len - half));
for (bool copy_ctx : {false, true}) {
SCOPED_TRACE(copy_ctx);
bssl::UniquePtr<EVP_PKEY_CTX> copy;
EVP_PKEY_CTX *use_ctx = ctx.get();
if (copy_ctx) {
copy.reset(EVP_PKEY_CTX_dup(ctx.get()));
ASSERT_TRUE(copy);
use_ctx = copy.get();
}
OPENSSL_memset(buf, 0, sizeof(buf));
size_t len = test->out_len;
ASSERT_TRUE(EVP_PKEY_derive(use_ctx, buf, &len));
EXPECT_EQ(Bytes(test->out, test->out_len), Bytes(buf, len));
}
ctx.reset(EVP_PKEY_CTX_new_id(EVP_PKEY_HKDF, nullptr));
ASSERT_TRUE(ctx);
ASSERT_TRUE(EVP_PKEY_derive_init(ctx.get()));
ASSERT_TRUE(EVP_PKEY_CTX_hkdf_mode(ctx.get(),
EVP_PKEY_HKDEF_MODE_EXTRACT_AND_EXPAND));
ASSERT_TRUE(EVP_PKEY_CTX_set_hkdf_md(ctx.get(), test->md_func()));
ASSERT_TRUE(
EVP_PKEY_CTX_set1_hkdf_key(ctx.get(), test->ikm, test->ikm_len));
ASSERT_TRUE(
EVP_PKEY_CTX_set1_hkdf_salt(ctx.get(), test->salt, test->salt_len));
// |info| can be passed in multiple parts.
ASSERT_TRUE(EVP_PKEY_CTX_add1_hkdf_info(ctx.get(), test->info, half));
ASSERT_TRUE(EVP_PKEY_CTX_add1_hkdf_info(ctx.get(), test->info + half,
test->info_len - half));
for (bool copy_ctx : {false, true}) {
SCOPED_TRACE(copy_ctx);
bssl::UniquePtr<EVP_PKEY_CTX> copy;
EVP_PKEY_CTX *use_ctx = ctx.get();
if (copy_ctx) {
copy.reset(EVP_PKEY_CTX_dup(ctx.get()));
ASSERT_TRUE(copy);
use_ctx = copy.get();
}
OPENSSL_memset(buf, 0, sizeof(buf));
size_t len = test->out_len;
ASSERT_TRUE(EVP_PKEY_derive(use_ctx, buf, &len));
EXPECT_EQ(Bytes(test->out, test->out_len), Bytes(buf, len));
}
}
}
static void RunWycheproofTest(const char *path, const EVP_MD *md) {
SCOPED_TRACE(path);
FileTestGTest(path, [&](FileTest *t) {
t->IgnoreInstruction("keySize");
std::vector<uint8_t> ikm, info, okm, salt;
ASSERT_TRUE(t->GetBytes(&ikm, "ikm"));
ASSERT_TRUE(t->GetBytes(&info, "info"));
ASSERT_TRUE(t->GetBytes(&okm, "okm"));
ASSERT_TRUE(t->GetBytes(&salt, "salt"));
WycheproofResult result;
ASSERT_TRUE(GetWycheproofResult(t, &result));
std::string size_str;
ASSERT_TRUE(t->GetAttribute(&size_str, "size"));
std::vector<uint8_t> out(atoi(size_str.c_str()));
bool ret = HKDF(out.data(), out.size(), md, ikm.data(), ikm.size(),
salt.data(), salt.size(), info.data(), info.size());
EXPECT_EQ(result.IsValid(), ret);
if (result.IsValid()) {
EXPECT_EQ(Bytes(okm), Bytes(out));
}
});
}
TEST(HKDFTest, WycheproofSHA1) {
RunWycheproofTest("third_party/wycheproof_testvectors/hkdf_sha1_test.txt",
EVP_sha1());
}
TEST(HKDFTest, WycheproofSHA256) {
RunWycheproofTest("third_party/wycheproof_testvectors/hkdf_sha256_test.txt",
EVP_sha256());
}
TEST(HKDFTest, WycheproofSHA384) {
RunWycheproofTest("third_party/wycheproof_testvectors/hkdf_sha384_test.txt",
EVP_sha384());
}
TEST(HKDFTest, WycheproofSHA512) {
RunWycheproofTest("third_party/wycheproof_testvectors/hkdf_sha512_test.txt",
EVP_sha512());
}
// NIST CAVP tests for HKDF_expand() operating as a "KDF in Feedback Mode";
// data from "KDF in Feedback Mode Test Vectors where zero length IV is allowed"
// https://csrc.nist.gov/Projects/cryptographic-algorithm-validation-program/key-derivation
static void RunTest(FileTest *t)
{
std::string prf, ctrlocation, rlen, count, l_str;
std::vector<uint8_t> ki, iv, fixed, ko;
t->IgnoreAllUnusedInstructions();
ASSERT_TRUE(t->GetInstruction(&prf, "PRF"));
ASSERT_TRUE(t->GetInstruction(&ctrlocation, "CTRLOCATION"));
ASSERT_TRUE(t->GetInstruction(&rlen, "RLEN"));
// Each test passing through RunTest() needs to consume all of its attributes
// or it generates an error. There is no IgnoreAllAttributes() or SkipTest()
// that we could take advantage of to return early instead of eating all the
// attributes.
bool run_test = true;
if ((ctrlocation != "AFTER_FIXED") || (rlen != "8_BITS")) {
// HKDF_expand() only works for "Counter After" and an r length of 8 bits.
// Skip this test.
run_test = false;
}
const EVP_MD *md = NULL;
if (prf == "HMAC_SHA1") {
// Coverity will yell at us for this, as it should. But FIPS 140-3 still
// allows it in some circumstances.
md = EVP_sha1();
} else if (prf == "HMAC_SHA224") {
md = EVP_sha224();
} else if (prf == "HMAC_SHA256") {
md = EVP_sha256();
} else if (prf == "HMAC_SHA384") {
md = EVP_sha384();
} else if (prf == "HMAC_SHA512") {
md = EVP_sha512();
} else {
// Unsupported PRF; HKDF_expand only supports the hash PRFs.
run_test = false;
}
// Test-specific values
ASSERT_TRUE(t->GetAttribute(&count, "COUNT"));
ASSERT_TRUE(t->GetAttribute(&l_str, "L"));
ASSERT_TRUE(t->GetBytes(&ki, "KI"));
ASSERT_TRUE(t->GetBytes(&iv, "IV"));
ASSERT_TRUE(t->GetBytes(&fixed, "FixedInputData"));
ASSERT_TRUE(t->GetBytes(&ko, "KO"));
if (iv.size() > 0) {
// We require a zero-length IV.
run_test = false;
}
// CAVP showing its work. Yes, this is awful.
t->IgnoreAttribute("Binary rep of i");
t->IgnoreAttribute("FixedInputDataByteLen");
t->IgnoreAttribute("initinstring");
t->IgnoreAttribute("instring");
t->IgnoreAttribute("instring/2");
t->IgnoreAttribute("instring/3");
t->IgnoreAttribute("instring/4");
t->IgnoreAttribute("instring/5");
t->IgnoreAttribute("instring/6");
t->IgnoreAttribute("instring/7");
t->IgnoreAttribute("instring/8");
t->IgnoreAttribute("instring/9");
t->IgnoreAttribute("instring/10");
t->IgnoreAttribute("instring/11");
t->IgnoreAttribute("instring/12");
t->IgnoreAttribute("instring/13");
t->IgnoreAttribute("instring/14");
t->IgnoreAttribute("instring/15");
t->IgnoreAttribute("instring/16");
t->IgnoreAttribute("instring/17");
t->IgnoreAttribute("instring/18");
t->IgnoreAttribute("instring/19");
t->IgnoreAttribute("instring/20");
t->IgnoreAttribute("instring/21");
t->IgnoreAttribute("instring/22");
t->IgnoreAttribute("instring/23");
t->IgnoreAttribute("instring/24");
t->IgnoreAttribute("instring/25");
t->IgnoreAttribute("instring/26");
t->IgnoreAttribute("instring/27");
t->IgnoreAttribute("instring/28");
t->IgnoreAttribute("instring/29");
t->IgnoreAttribute("instring/30");
t->IgnoreAttribute("instring/31");
t->IgnoreAttribute("instring/32");
t->IgnoreAttribute("instring/33");
t->IgnoreAttribute("instring/34");
t->IgnoreAttribute("instring/35");
t->IgnoreAttribute("instring/36");
t->IgnoreAttribute("instring/37");
t->IgnoreAttribute("instring/38");
t->IgnoreAttribute("IterationVariableData");
t->IgnoreAttribute("IterationVariableData/2");
t->IgnoreAttribute("iv");
t->IgnoreAttribute("IVlen");
t->IgnoreAttribute("K(0)");
t->IgnoreAttribute("K(i)");
t->IgnoreAttribute("K(i)/2");
t->IgnoreAttribute("K(i)/3");
t->IgnoreAttribute("K(i)/4");
t->IgnoreAttribute("K(i)/5");
t->IgnoreAttribute("K(i)/6");
t->IgnoreAttribute("K(i)/7");
t->IgnoreAttribute("K(i)/8");
t->IgnoreAttribute("K(i)/9");
t->IgnoreAttribute("K(i)/10");
t->IgnoreAttribute("K(i)/11");
t->IgnoreAttribute("K(i)/12");
t->IgnoreAttribute("K(i)/13");
t->IgnoreAttribute("K(i)/14");
t->IgnoreAttribute("K(i)/15");
t->IgnoreAttribute("K(i)/16");
t->IgnoreAttribute("K(i)/17");
t->IgnoreAttribute("K(i)/18");
t->IgnoreAttribute("K(i)/19");
t->IgnoreAttribute("K(i)/20");
t->IgnoreAttribute("K(i)/21");
t->IgnoreAttribute("K(i)/22");
t->IgnoreAttribute("K(i)/23");
t->IgnoreAttribute("K(i)/24");
t->IgnoreAttribute("K(i)/25");
t->IgnoreAttribute("K(i)/26");
t->IgnoreAttribute("K(i)/27");
t->IgnoreAttribute("K(i)/28");
t->IgnoreAttribute("K(i)/29");
t->IgnoreAttribute("K(i)/30");
t->IgnoreAttribute("K(i)/31");
t->IgnoreAttribute("K(i)/32");
t->IgnoreAttribute("K(i)/33");
t->IgnoreAttribute("K(i)/34");
t->IgnoreAttribute("K(i)/35");
t->IgnoreAttribute("K(i)/36");
t->IgnoreAttribute("K(i)/37");
t->IgnoreAttribute("K(i)/38");
unsigned long l_len = std::stoul(l_str) / 8;
// HKDF_expand being used as a KDF in Feedback Mode
if (run_test) {
// The |output| buffer is a plain C buffer because using a C++ std::vector
// produces a false positive in the clang Address Sanitizer checks. Note
// that this is done the C++ way in sshkdf_test.cc without triggering a
// false positive.
uint8_t *output = (uint8_t *)malloc(l_len);
ASSERT_TRUE(HKDF_expand(output, l_len, md, ki.data(), ki.size(), fixed.data(), fixed.size()));
EXPECT_EQ(Bytes(ko.data(), ko.size()), Bytes(output, l_len));
free(output);
}
}
TEST(HKDFTest, HKDFExpandCAVP) {
FileTestGTest("crypto/evp_extra/kbkdf_expand_tests.txt", RunTest);
}
TEST(HKDFTest, EVP_PKEY_HKDF_RejectsXOF) {
bssl::UniquePtr<EVP_PKEY_CTX> ctx(
EVP_PKEY_CTX_new_id(EVP_PKEY_HKDF, nullptr));
ASSERT_TRUE(ctx);
ASSERT_TRUE(EVP_PKEY_derive_init(ctx.get()));
// XOF digests should be rejected when setting the digest.
EXPECT_FALSE(EVP_PKEY_CTX_set_hkdf_md(ctx.get(), EVP_shake128()));
EXPECT_FALSE(EVP_PKEY_CTX_set_hkdf_md(ctx.get(), EVP_shake256()));
// Non-XOF digests should succeed.
EXPECT_TRUE(EVP_PKEY_CTX_set_hkdf_md(ctx.get(), EVP_sha256()));
}
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