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240 lines
12 KiB
C++
240 lines
12 KiB
C++
/*
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* Copyright (c) 2022, Ben Wiederhake <BenWiederhake.GitHub@gmx.de>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/StringView.h>
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#include <AK/Time.h>
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#include <LibCrypto/ASN1/ASN1.h>
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#include <LibCrypto/ASN1/DER.h>
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#include <LibTest/TestCase.h>
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#define EXPECT_DATETIME(sv, y, mo, d, h, mi, s) \
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EXPECT_EQ(Crypto::ASN1::parse_utc_time(sv).value(), UnixDateTime::from_unix_time_parts(y, mo, d, h, mi, s, 0))
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TEST_CASE(test_utc_boring)
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{
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// YYMMDDhhmm[ss]Z
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EXPECT_DATETIME("010101010101Z"sv, 2001, 1, 1, 1, 1, 1);
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EXPECT_DATETIME("010203040506Z"sv, 2001, 2, 3, 4, 5, 6);
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EXPECT_DATETIME("020406081012Z"sv, 2002, 4, 6, 8, 10, 12);
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EXPECT_DATETIME("0204060810Z"sv, 2002, 4, 6, 8, 10, 0);
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EXPECT_DATETIME("220911220000Z"sv, 2022, 9, 11, 22, 0, 0);
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}
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TEST_CASE(test_utc_year_rollover)
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{
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// YYMMDDhhmm[ss]Z
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EXPECT_DATETIME("000101010101Z"sv, 2000, 1, 1, 1, 1, 1);
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EXPECT_DATETIME("010101010101Z"sv, 2001, 1, 1, 1, 1, 1);
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EXPECT_DATETIME("020101010101Z"sv, 2002, 1, 1, 1, 1, 1);
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// ...
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EXPECT_DATETIME("480101010101Z"sv, 2048, 1, 1, 1, 1, 1);
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EXPECT_DATETIME("490101010101Z"sv, 2049, 1, 1, 1, 1, 1);
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// This Y2050-problem is hardcoded in the spec. Oh no.
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EXPECT_DATETIME("500101010101Z"sv, 1950, 1, 1, 1, 1, 1);
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EXPECT_DATETIME("510101010101Z"sv, 1951, 1, 1, 1, 1, 1);
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// ...
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EXPECT_DATETIME("970101010101Z"sv, 1997, 1, 1, 1, 1, 1);
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EXPECT_DATETIME("980101010101Z"sv, 1998, 1, 1, 1, 1, 1);
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EXPECT_DATETIME("990101010101Z"sv, 1999, 1, 1, 1, 1, 1);
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}
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TEST_CASE(test_utc_offset)
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{
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// YYMMDDhhmm[ss](+|-)hhmm
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// We don't yet support storing the offset anywhere and instead just assume that the offset is just +0000.
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EXPECT_DATETIME("010101010101+0000"sv, 2001, 1, 1, 1, 1, 1);
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EXPECT_DATETIME("010203040506+0000"sv, 2001, 2, 3, 4, 5, 6);
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EXPECT_DATETIME("020406081012+0000"sv, 2002, 4, 6, 8, 10, 12);
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EXPECT_DATETIME("0204060810+0000"sv, 2002, 4, 6, 8, 10, 0);
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EXPECT_DATETIME("220911220000+0000"sv, 2022, 9, 11, 22, 0, 0);
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// Designed to fail once we support offsets:
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EXPECT_DATETIME("220911220000+0600"sv, 2022, 9, 11, 22, 0, 0);
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}
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TEST_CASE(test_utc_missing_z)
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{
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// YYMMDDhhmm[ss]
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// We don't actually need to parse this correctly; rejecting these inputs is fine.
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// This test just makes sure that we don't crash.
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(void)Crypto::ASN1::parse_utc_time("010101010101"sv);
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(void)Crypto::ASN1::parse_utc_time("010203040506"sv);
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(void)Crypto::ASN1::parse_utc_time("020406081012"sv);
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(void)Crypto::ASN1::parse_utc_time("0204060810"sv);
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(void)Crypto::ASN1::parse_utc_time("220911220000"sv);
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}
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#undef EXPECT_DATETIME
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#define EXPECT_DATETIME(sv, y, mo, d, h, mi, s, ms) \
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EXPECT_EQ(Crypto::ASN1::parse_generalized_time(sv).value(), UnixDateTime::from_unix_time_parts(y, mo, d, h, mi, s, ms))
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TEST_CASE(test_generalized_boring)
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{
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// YYYYMMDDhh[mm[ss[.fff]]]
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EXPECT_DATETIME("20010101010101Z"sv, 2001, 1, 1, 1, 1, 1, 0);
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EXPECT_DATETIME("20010203040506Z"sv, 2001, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("20020406081012Z"sv, 2002, 4, 6, 8, 10, 12, 0);
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EXPECT_DATETIME("200204060810Z"sv, 2002, 4, 6, 8, 10, 0, 0);
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EXPECT_DATETIME("2002040608Z"sv, 2002, 4, 6, 8, 0, 0, 0);
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EXPECT_DATETIME("20020406081012.567Z"sv, 2002, 4, 6, 8, 10, 12, 567);
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EXPECT_DATETIME("20220911220000Z"sv, 2022, 9, 11, 22, 0, 0, 0);
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}
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TEST_CASE(test_generalized_offset)
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{
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// YYYYMMDDhh[mm[ss[.fff]]](+|-)hhmm
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// We don't yet support storing the offset anywhere and instead just assume that the offset is just +0000.
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EXPECT_DATETIME("20010101010101+0000"sv, 2001, 1, 1, 1, 1, 1, 0);
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EXPECT_DATETIME("20010203040506+0000"sv, 2001, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("20020406081012+0000"sv, 2002, 4, 6, 8, 10, 12, 0);
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EXPECT_DATETIME("200204060810+0000"sv, 2002, 4, 6, 8, 10, 0, 0);
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EXPECT_DATETIME("2002040608+0000"sv, 2002, 4, 6, 8, 0, 0, 0);
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EXPECT_DATETIME("20020406081012.567+0000"sv, 2002, 4, 6, 8, 10, 12, 567);
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EXPECT_DATETIME("20220911220000+0000"sv, 2022, 9, 11, 22, 0, 0, 0);
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// Designed to fail once we support offsets:
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EXPECT_DATETIME("20220911220000+0600"sv, 2022, 9, 11, 22, 0, 0, 0);
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}
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TEST_CASE(test_generalized_missing_z)
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{
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// YYYYMMDDhh[mm[ss[.fff]]]
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EXPECT_DATETIME("20010101010101"sv, 2001, 1, 1, 1, 1, 1, 0);
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EXPECT_DATETIME("20010203040506"sv, 2001, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("20020406081012"sv, 2002, 4, 6, 8, 10, 12, 0);
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EXPECT_DATETIME("200204060810"sv, 2002, 4, 6, 8, 10, 0, 0);
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EXPECT_DATETIME("2002040608"sv, 2002, 4, 6, 8, 0, 0, 0);
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EXPECT_DATETIME("20020406081012.567"sv, 2002, 4, 6, 8, 10, 12, 567);
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EXPECT_DATETIME("20220911220000"sv, 2022, 9, 11, 22, 0, 0, 0);
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}
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TEST_CASE(test_generalized_unusual_year)
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{
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// Towards the positive
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EXPECT_DATETIME("20010203040506Z"sv, 2001, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("20110203040506Z"sv, 2011, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("21010203040506Z"sv, 2101, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("30010203040506Z"sv, 3001, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("40010203040506Z"sv, 4001, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("90010203040506Z"sv, 9001, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("99990203040506Z"sv, 9999, 2, 3, 4, 5, 6, 0);
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// Towards zero
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EXPECT_DATETIME("20010203040506Z"sv, 2001, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("19990203040506Z"sv, 1999, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("19500203040506Z"sv, 1950, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("19010203040506Z"sv, 1901, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("18010203040506Z"sv, 1801, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("15010203040506Z"sv, 1501, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("10010203040506Z"sv, 1001, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("01010203040506Z"sv, 101, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("00110203040506Z"sv, 11, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("00010203040506Z"sv, 1, 2, 3, 4, 5, 6, 0);
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EXPECT_DATETIME("00000203040506Z"sv, 0, 2, 3, 4, 5, 6, 0);
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// Problematic dates
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EXPECT_DATETIME("20200229040506Z"sv, 2020, 2, 29, 4, 5, 6, 0);
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EXPECT_DATETIME("20000229040506Z"sv, 2000, 2, 29, 4, 5, 6, 0);
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EXPECT_DATETIME("24000229040506Z"sv, 2400, 2, 29, 4, 5, 6, 0);
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}
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TEST_CASE(test_generalized_nonexistent_dates)
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{
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// The following dates don't exist. I'm not sure what the "correct" result is,
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// but we need to make sure that we don't crash.
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(void)Crypto::ASN1::parse_generalized_time("20210229040506Z"sv); // Not a leap year (not divisible by 4)
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(void)Crypto::ASN1::parse_generalized_time("21000229040506Z"sv); // Not a leap year (divisible by 100)
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(void)Crypto::ASN1::parse_generalized_time("20220230040506Z"sv); // Never exists
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(void)Crypto::ASN1::parse_generalized_time("20220631040506Z"sv); // Never exists
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(void)Crypto::ASN1::parse_generalized_time("20220732040506Z"sv); // Never exists
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// https://www.timeanddate.com/calendar/julian-gregorian-switch.html
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(void)Crypto::ASN1::parse_generalized_time("15821214040506Z"sv); // Gregorian switch; France
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(void)Crypto::ASN1::parse_generalized_time("15821011040506Z"sv); // Gregorian switch; Italy, Poland, Portugal, Spain
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(void)Crypto::ASN1::parse_generalized_time("15830105040506Z"sv); // Gregorian switch; Germany (Catholic)
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(void)Crypto::ASN1::parse_generalized_time("15831011040506Z"sv); // Gregorian switch; Austria
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(void)Crypto::ASN1::parse_generalized_time("15871026040506Z"sv); // Gregorian switch; Hungary
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(void)Crypto::ASN1::parse_generalized_time("16100826040506Z"sv); // Gregorian switch; Germany (old Prussia)
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(void)Crypto::ASN1::parse_generalized_time("17000223040506Z"sv); // Gregorian switch; Germany (Protestant)
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(void)Crypto::ASN1::parse_generalized_time("17520908040506Z"sv); // Gregorian switch; US, Canada, UK
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(void)Crypto::ASN1::parse_generalized_time("18711225040506Z"sv); // Gregorian switch; Japan
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(void)Crypto::ASN1::parse_generalized_time("19160407040506Z"sv); // Gregorian switch; Bulgaria
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(void)Crypto::ASN1::parse_generalized_time("19180207040506Z"sv); // Gregorian switch; Estonia, Russia
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(void)Crypto::ASN1::parse_generalized_time("19230222040506Z"sv); // Gregorian switch; Greece
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(void)Crypto::ASN1::parse_generalized_time("19261224040506Z"sv); // Gregorian switch; Turkey
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}
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TEST_CASE(test_encoder_primitives)
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{
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auto roundtrip_value = [](auto value) {
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Crypto::ASN1::Encoder encoder;
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MUST(encoder.write(value));
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auto encoded = encoder.finish();
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Crypto::ASN1::Decoder decoder(encoded);
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auto decoded = MUST(decoder.read<decltype(value)>());
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EXPECT_EQ(decoded, value);
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};
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roundtrip_value(false);
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roundtrip_value(true);
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roundtrip_value(Crypto::UnsignedBigInteger { 0 });
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roundtrip_value(Crypto::UnsignedBigInteger { 1 });
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roundtrip_value(Crypto::UnsignedBigInteger { 2 }.shift_left(128));
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roundtrip_value(Crypto::UnsignedBigInteger { 2 }.shift_left(256));
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roundtrip_value(Vector { 1, 2, 840, 113549, 1, 1, 1 });
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roundtrip_value(Vector { 1, 2, 840, 113549, 1, 1, 11 });
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roundtrip_value(ByteString { "Hello, World!\n" });
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roundtrip_value(nullptr);
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roundtrip_value(Crypto::ASN1::BitStringView { { { 0x00, 0x01, 0x02, 0x03 } }, 3 });
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}
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TEST_CASE(test_encoder_constructed)
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{
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Crypto::ASN1::Encoder encoder;
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/*
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* RSAPrivateKey ::= SEQUENCE {
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* version Version, -- Version ::= INTEGER { two-prime(0), multi(1) }
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* modulus INTEGER, -- n
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* publicExponent INTEGER, -- e
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* privateExponent INTEGER, -- d
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* prime1 INTEGER, -- p
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* prime2 INTEGER, -- q
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* exponent1 INTEGER, -- d mod (p-1)
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* exponent2 INTEGER, -- d mod (q-1)
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* coefficient INTEGER, -- (inverse of q) mod p
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* otherPrimeInfos OtherPrimeInfos OPTIONAL
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* }
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*/
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(void)encoder.write_constructed(Crypto::ASN1::Class::Universal, Crypto::ASN1::Kind::Sequence, [&] {
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MUST(encoder.write(0u)); // version
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MUST(encoder.write(0x1234u)); // modulus
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MUST(encoder.write(0x10001u)); // publicExponent
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MUST(encoder.write(0x5678u)); // privateExponent
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MUST(encoder.write(0x9abcu)); // prime1
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MUST(encoder.write(0xdef0u)); // prime2
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MUST(encoder.write(0x1234u)); // exponent1
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MUST(encoder.write(0x5678u)); // exponent2
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MUST(encoder.write(0x9abcu)); // coefficient
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});
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auto encoded = encoder.finish();
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Crypto::ASN1::Decoder decoder(encoded);
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MUST(decoder.enter()); // Sequence
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EXPECT_EQ(MUST(decoder.read<Crypto::UnsignedBigInteger>()), 0u); // version
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EXPECT_EQ(MUST(decoder.read<Crypto::UnsignedBigInteger>()), 0x1234u); // modulus
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EXPECT_EQ(MUST(decoder.read<Crypto::UnsignedBigInteger>()), 0x10001u); // publicExponent
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EXPECT_EQ(MUST(decoder.read<Crypto::UnsignedBigInteger>()), 0x5678u); // privateExponent
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EXPECT_EQ(MUST(decoder.read<Crypto::UnsignedBigInteger>()), 0x9abcu); // prime1
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EXPECT_EQ(MUST(decoder.read<Crypto::UnsignedBigInteger>()), 0xdef0u); // prime2
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EXPECT_EQ(MUST(decoder.read<Crypto::UnsignedBigInteger>()), 0x1234u); // exponent1
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EXPECT_EQ(MUST(decoder.read<Crypto::UnsignedBigInteger>()), 0x5678u); // exponent2
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EXPECT_EQ(MUST(decoder.read<Crypto::UnsignedBigInteger>()), 0x9abcu); // coefficient
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EXPECT(decoder.eof()); // no otherPrimeInfos
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MUST(decoder.leave()); // Sequence
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EXPECT(decoder.eof()); // no other data
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}
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