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LibCrypto: Add some checksum algorithms

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Namely CRC32 and Adler32
This commit is contained in:
stelar7 2020-07-29 20:24:54 +02:00 • committed by Andreas Kling
parent 8c5f08ea94
commit dad22c5d5a
7 changed files with 358 additions and 0 deletions
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82
Userland/test-crypto.cpp
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@ -31,6 +31,8 @@
#include <LibCrypto/Authentication/HMAC.h>
#include <LibCrypto/BigInt/SignedBigInteger.h>
#include <LibCrypto/BigInt/UnsignedBigInteger.h>
#include <LibCrypto/Checksum/Adler32.h>
#include <LibCrypto/Checksum/CRC32.h>
#include <LibCrypto/Cipher/AES.h>
#include <LibCrypto/Hash/MD5.h>
#include <LibCrypto/Hash/SHA1.h>
@ -61,6 +63,7 @@ static bool g_some_test_failed = false;
static bool encrypting = true;
constexpr const char* DEFAULT_DIGEST_SUITE { "HMAC-SHA256" };
constexpr const char* DEFAULT_CHECKSUM_SUITE { "CRC32" };
constexpr const char* DEFAULT_HASH_SUITE { "SHA256" };
constexpr const char* DEFAULT_CIPHER_SUITE { "AES_CBC" };
constexpr const char* DEFAULT_SERVER { "www.google.com" };
@ -90,6 +93,10 @@ int tls_tests();
// Big Integer
int bigint_tests();
// Checksum
int adler32_tests();
int crc32_tests();
// stop listing tests
void print_buffer(const ByteBuffer& buffer, int split)
@ -204,6 +211,18 @@ void aes_cbc(const char* message, size_t len)
}
}
void adler32(const char* message, size_t len)
{
auto checksum = Crypto::Checksum::Adler32({ (const u8*)message, len });
printf("%#10X\n", checksum.digest());
}
void crc32(const char* message, size_t len)
{
auto checksum = Crypto::Checksum::CRC32({ (const u8*)message, len });
printf("%#10X\n", checksum.digest());
}
void md5(const char* message, size_t len)
{
auto digest = Crypto::Hash::MD5::hash((const u8*)message, len);
@ -293,6 +312,7 @@ auto main(int argc, char** argv) -> int
puts("test-crypto modes");
puts("\tdigest - Access digest (authentication) functions");
puts("\thash - Access hash functions");
puts("\tchecksum - Access checksum functions");
puts("\tencrypt -- Access encryption functions");
puts("\tdecrypt -- Access decryption functions");
puts("\ttls -- Connect to a peer over TLS 1.2");
@ -332,6 +352,24 @@ auto main(int argc, char** argv) -> int
printf("unknown hash function '%s'\n", suite);
return 1;
}
if (mode_sv == "checksum") {
if (suite == nullptr)
suite = DEFAULT_CHECKSUM_SUITE;
StringView suite_sv { suite };
if (suite_sv == "CRC32") {
if (run_tests)
return crc32_tests();
return run(crc32);
}
if (suite_sv == "Adler32") {
if (run_tests)
return adler32_tests();
return run(adler32);
}
printf("unknown checksum function '%s'\n", suite);
return 1;
}
if (mode_sv == "digest") {
if (suite == nullptr)
suite = DEFAULT_DIGEST_SUITE;
@ -1558,6 +1596,50 @@ void tls_test_client_hello()
loop.exec();
}
int adler32_tests()
{
auto do_test = [](ReadonlyBytes input, u32 expected_result) {
I_TEST((CRC32));
auto pass = Crypto::Checksum::Adler32(input).digest() == expected_result;
if (pass) {
PASS;
} else {
FAIL(Incorrect Result);
}
};
do_test(String("").bytes(), 0x1);
do_test(String("a").bytes(), 0x00620062);
do_test(String("abc").bytes(), 0x024d0127);
do_test(String("message digest").bytes(), 0x29750586);
do_test(String("abcdefghijklmnopqrstuvwxyz").bytes(), 0x90860b20);
return g_some_test_failed ? 1 : 0;
}
int crc32_tests()
{
auto do_test = [](ReadonlyBytes input, u32 expected_result) {
I_TEST((Adler32));
auto pass = Crypto::Checksum::CRC32(input).digest() == expected_result;
if (pass) {
PASS;
} else {
FAIL(Incorrect Result);
}
};
do_test(String("").bytes(), 0x0);
do_test(String("The quick brown fox jumps over the lazy dog").bytes(), 0x414FA339);
do_test(String("various CRC algorithms input data").bytes(), 0x9BD366AE);
return g_some_test_failed ? 1 : 0;
}
int bigint_tests()
{
bigint_test_fibo500();