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LibCrypto: Replace from_base{2,8,10,16}() & to_base10 with from_base(N)

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This allows us to support parsing and serializing BigIntegers to and
from any base N (such that 2 <= N <= 36).
This commit is contained in:
Idan Horowitz 2021-06-29 17:51:52 +03:00 • committed by Linus Groh
parent a768131720
commit 005d75656e
14 changed files with 56 additions and 132 deletions
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28
Userland/Utilities/test-crypto.cpp
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@ -2429,7 +2429,7 @@ static void bigint_base10()
{
{
I_TEST((BigInteger | From String));
auto result = Crypto::UnsignedBigInteger::from_base10("57195071295721390579057195715793");
auto result = Crypto::UnsignedBigInteger::from_base(10, "57195071295721390579057195715793");
if (result.words() == Vector<u32> { 3806301393, 954919431, 3879607298, 721 }) {
PASS;
} else {
@ -2438,7 +2438,7 @@ static void bigint_base10()
}
{
I_TEST((BigInteger | To String));
auto result = Crypto::UnsignedBigInteger { Vector<u32> { 3806301393, 954919431, 3879607298, 721 } }.to_base10();
auto result = Crypto::UnsignedBigInteger { Vector<u32> { 3806301393, 954919431, 3879607298, 721 } }.to_base(10);
if (result == "57195071295721390579057195715793") {
PASS;
} else {
@ -2551,11 +2551,11 @@ static void bigint_theory_modular_power()
PASS;
} else {
FAIL(Wrong result);
outln("b: {}", test_case.base.to_base10());
outln("e: {}", test_case.exp.to_base10());
outln("m: {}", test_case.mod.to_base10());
outln("expect: {}", test_case.expected.to_base10());
outln("actual: {}", actual.to_base10());
outln("b: {}", test_case.base.to_base(10));
outln("e: {}", test_case.exp.to_base(10));
outln("m: {}", test_case.mod.to_base(10));
outln("expect: {}", test_case.expected.to_base(10));
outln("actual: {}", actual.to_base(10));
}
}
}
@ -2593,7 +2593,7 @@ static void bigint_theory_primality()
} else {
FAIL(Wrong primality guess);
outln("The number {} is {}a prime, but the test said it is {}a prime!",
test_case.candidate.to_base10(), test_case.expected_result ? "" : "not ", actual_result ? "" : "not ");
test_case.candidate.to_base(10), test_case.expected_result ? "" : "not ", actual_result ? "" : "not ");
}
}
}
@ -2616,10 +2616,10 @@ static void bigint_theory_random_number()
auto actual_result = Crypto::NumberTheory::random_number(test_case.min, test_case.max);
if (actual_result < test_case.min) {
FAIL(Too small);
outln("The generated number {} is smaller than the requested minimum {}. (max = {})", actual_result.to_base10(), test_case.min.to_base10(), test_case.max.to_base10());
outln("The generated number {} is smaller than the requested minimum {}. (max = {})", actual_result.to_base(10), test_case.min.to_base(10), test_case.max.to_base(10));
} else if (!(actual_result < test_case.max)) {
FAIL(Too large);
outln("The generated number {} is larger-or-equal to the requested maximum {}. (min = {})", actual_result.to_base10(), test_case.max.to_base10(), test_case.min.to_base10());
outln("The generated number {} is larger-or-equal to the requested maximum {}. (min = {})", actual_result.to_base(10), test_case.max.to_base(10), test_case.min.to_base(10));
} else {
PASS;
}
@ -2632,10 +2632,10 @@ static void bigint_theory_random_number()
"100000000000000000000000000000"_bigint); // 10**29
if (actual_result < "100000000000000000000"_bigint) { // 10**20
FAIL(Too small);
outln("The generated number {} is extremely small. This *can* happen by pure chance, but should happen only once in a billion times. So it's probably an error.", actual_result.to_base10());
outln("The generated number {} is extremely small. This *can* happen by pure chance, but should happen only once in a billion times. So it's probably an error.", actual_result.to_base(10));
} else if ("99999999900000000000000000000"_bigint < actual_result) { // 10**29 - 10**20
FAIL(Too large);
outln("The generated number {} is extremely large. This *can* happen by pure chance, but should happen only once in a billion times. So it's probably an error.", actual_result.to_base10());
outln("The generated number {} is extremely large. This *can* happen by pure chance, but should happen only once in a billion times. So it's probably an error.", actual_result.to_base(10));
} else {
PASS;
}
@ -2940,7 +2940,7 @@ static void bigint_signed_base10()
{
{
I_TEST((Signed BigInteger | From String));
auto result = Crypto::SignedBigInteger::from_base10("-57195071295721390579057195715793");
auto result = Crypto::SignedBigInteger::from_base(10, "-57195071295721390579057195715793");
if (result.unsigned_value().words() == Vector<u32> { 3806301393, 954919431, 3879607298, 721 } && result.is_negative()) {
PASS;
} else {
@ -2949,7 +2949,7 @@ static void bigint_signed_base10()
}
{
I_TEST((Signed BigInteger | To String));
auto result = Crypto::SignedBigInteger { Crypto::UnsignedBigInteger { Vector<u32> { 3806301393, 954919431, 3879607298, 721 } }, true }.to_base10();
auto result = Crypto::SignedBigInteger { Crypto::UnsignedBigInteger { Vector<u32> { 3806301393, 954919431, 3879607298, 721 } }, true }.to_base(10);
if (result == "-57195071295721390579057195715793") {
PASS;
} else {