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LibCrypto: Add bitwise operations (and/or/xor)

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This commit is contained in:
AnotherTest 2020-06-06 01:36:03 +04:30 • committed by Andreas Kling
parent fbb1d9afe5
commit 02c53fd1f9
5 changed files with 333 additions and 0 deletions
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51
Libraries/LibCrypto/BigInt/SignedBigInteger.cpp
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@ -139,6 +139,57 @@ FLATTEN SignedBigInteger SignedBigInteger::minus(const UnsignedBigInteger& other
return { other.minus(m_unsigned_data), true };
}
FLATTEN SignedBigInteger SignedBigInteger::bitwise_or(const UnsignedBigInteger& other) const
{
return { unsigned_value().bitwise_or(other), m_sign };
}
FLATTEN SignedBigInteger SignedBigInteger::bitwise_and(const UnsignedBigInteger& other) const
{
return { unsigned_value().bitwise_and(other), false };
}
FLATTEN SignedBigInteger SignedBigInteger::bitwise_xor(const UnsignedBigInteger& other) const
{
return { unsigned_value().bitwise_xor(other), m_sign };
}
FLATTEN SignedBigInteger SignedBigInteger::bitwise_not() const
{
return { unsigned_value().bitwise_not(), !m_sign };
}
FLATTEN SignedBigInteger SignedBigInteger::bitwise_or(const SignedBigInteger& other) const
{
auto result = bitwise_or(other.unsigned_value());
// The sign bit will have to be OR'd manually.
if (other.is_negative())
result.negate();
return result;
}
FLATTEN SignedBigInteger SignedBigInteger::bitwise_and(const SignedBigInteger& other) const
{
auto result = bitwise_and(other.unsigned_value());
// The sign bit will have to be AND'd manually.
result.m_sign = is_negative() || other.is_negative();
return result;
}
FLATTEN SignedBigInteger SignedBigInteger::bitwise_xor(const SignedBigInteger& other) const
{
auto result = bitwise_xor(other.unsigned_value());
// The sign bit will have to be XOR'd manually.
result.m_sign = is_negative() ^ other.is_negative();
return result;
}
bool SignedBigInteger::operator==(const UnsignedBigInteger& other) const
{
if (m_sign)