mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 03:02:36 +01:00
b676b43803
Adds an *unaudited* SHA-256 implementation to `llvm/Support`. The ongoing lld-macho effort needs this to emit an adhoc code signature for macho files on macOS Big Sur. Reviewed By: mehdi_amini Differential Revision: https://reviews.llvm.org/D96540
81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
//===- llvm/unittest/Support/SHA256Test.cpp - SHA256 tests
|
|
//----------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements unit tests for the SHA256 functions.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Support/SHA256.h"
|
|
#include "llvm/ADT/ArrayRef.h"
|
|
#include "llvm/ADT/SmallString.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
static std::string toHex(StringRef Input) {
|
|
static const char *const LUT = "0123456789abcdef";
|
|
size_t Length = Input.size();
|
|
|
|
std::string Output;
|
|
Output.reserve(2 * Length);
|
|
for (size_t i = 0; i < Length; ++i) {
|
|
const unsigned char c = Input[i];
|
|
Output.push_back(LUT[c >> 4]);
|
|
Output.push_back(LUT[c & 15]);
|
|
}
|
|
return Output;
|
|
}
|
|
|
|
/// Tests an arbitrary set of bytes passed as \p Input.
|
|
void TestSHA256Sum(ArrayRef<uint8_t> Input, StringRef Final) {
|
|
SHA256 Hash;
|
|
Hash.update(Input);
|
|
auto hash = Hash.final();
|
|
auto hashStr = toHex(hash);
|
|
EXPECT_EQ(hashStr, Final);
|
|
}
|
|
|
|
using KV = std::pair<const char *, const char *>;
|
|
|
|
TEST(SHA256Test, SHA256) {
|
|
std::array<KV, 5> testvectors{
|
|
KV{"",
|
|
"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"},
|
|
KV{"a",
|
|
"ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb"},
|
|
KV{"abc",
|
|
"ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"},
|
|
KV{"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
|
|
"248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1"},
|
|
KV{"abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklm"
|
|
"nopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
|
|
"cf5b16a778af8380036ce59e7b0492370b249b11e8f07a51afac45037afee9d1"}};
|
|
|
|
for (auto input_expected : testvectors) {
|
|
auto str = std::get<0>(input_expected);
|
|
auto expected = std::get<1>(input_expected);
|
|
TestSHA256Sum({reinterpret_cast<const uint8_t *>(str), strlen(str)},
|
|
expected);
|
|
}
|
|
|
|
std::string rep(1000, 'a');
|
|
SHA256 Hash;
|
|
for (int i = 0; i < 1000; ++i) {
|
|
Hash.update({reinterpret_cast<const uint8_t *>(rep.data()), rep.size()});
|
|
}
|
|
auto hash = Hash.final();
|
|
auto hashStr = toHex(hash);
|
|
EXPECT_EQ(hashStr,
|
|
"cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0");
|
|
}
|
|
|
|
} // namespace
|