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LibCrypto: Change [XXX]BigInteger::export_data() to use Span.
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abe925e4b0
commit
4709b700bd
6 changed files with 16 additions and 26 deletions
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@ -36,10 +36,10 @@ SignedBigInteger SignedBigInteger::import_data(const u8* ptr, size_t length)
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return { move(unsigned_data), sign };
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}
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size_t SignedBigInteger::export_data(AK::ByteBuffer& data) const
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size_t SignedBigInteger::export_data(Bytes data) const
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{
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data[0] = m_sign;
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auto bytes_view = data.slice_view(1, data.size() - 1);
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auto bytes_view = data.slice(1, data.size() - 1);
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return m_unsigned_data.export_data(bytes_view) + 1;
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}
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@ -26,6 +26,7 @@
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#pragma once
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#include <AK/Span.h>
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#include <LibCrypto/BigInt/UnsignedBigInteger.h>
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namespace Crypto {
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@ -66,13 +67,7 @@ public:
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static SignedBigInteger import_data(const AK::StringView& data) { return import_data((const u8*)data.characters_without_null_termination(), data.length()); }
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static SignedBigInteger import_data(const u8* ptr, size_t length);
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size_t export_data(AK::ByteBuffer& data) const;
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size_t export_data(u8* ptr, size_t length) const
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{
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// Note: ByteBuffer::wrap() does a const_cast!
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auto buffer = ByteBuffer::wrap(ptr, length);
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return export_data(buffer);
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}
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size_t export_data(Bytes) const;
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static SignedBigInteger from_base10(StringView str);
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String to_base10() const;
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@ -55,7 +55,7 @@ UnsignedBigInteger UnsignedBigInteger::create_invalid()
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return invalid;
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}
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size_t UnsignedBigInteger::export_data(AK::ByteBuffer& data) const
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size_t UnsignedBigInteger::export_data(Bytes data) const
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{
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size_t word_count = trimmed_length();
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size_t out = 0;
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@ -28,6 +28,7 @@
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#include <AK/ByteBuffer.h>
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#include <AK/LogStream.h>
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#include <AK/Span.h>
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#include <AK/String.h>
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#include <AK/Types.h>
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#include <AK/Vector.h>
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@ -58,13 +59,7 @@ public:
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return UnsignedBigInteger(ptr, length);
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}
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size_t export_data(AK::ByteBuffer& data) const;
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size_t export_data(u8* ptr, size_t length) const
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{
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// Note: ByteBuffer::wrap() does a const_cast!
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auto buffer = ByteBuffer::wrap(ptr, length);
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return export_data(buffer);
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}
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size_t export_data(Bytes) const;
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static UnsignedBigInteger from_base10(const String& str);
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String to_base10() const;
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@ -125,7 +125,7 @@ void RSA::encrypt(const ByteBuffer& in, ByteBuffer& out)
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return;
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}
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auto exp = NumberTheory::ModularPower(in_integer, m_public_key.public_exponent(), m_public_key.modulus());
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auto size = exp.export_data(out);
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auto size = exp.export_data(out.span());
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// FIXME: We should probably not do this...
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if (size != out.size())
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out = out.slice(out.size() - size, size);
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@ -137,7 +137,7 @@ void RSA::decrypt(const ByteBuffer& in, ByteBuffer& out)
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auto in_integer = UnsignedBigInteger::import_data(in.data(), in.size());
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auto exp = NumberTheory::ModularPower(in_integer, m_private_key.private_exponent(), m_private_key.modulus());
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auto size = exp.export_data(out);
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auto size = exp.export_data(out.span());
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auto align = m_private_key.length();
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auto aligned_size = (size + align - 1) / align * align;
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@ -151,7 +151,7 @@ void RSA::sign(const ByteBuffer& in, ByteBuffer& out)
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{
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auto in_integer = UnsignedBigInteger::import_data(in.data(), in.size());
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auto exp = NumberTheory::ModularPower(in_integer, m_private_key.private_exponent(), m_private_key.modulus());
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auto size = exp.export_data(out);
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auto size = exp.export_data(out.span());
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out = out.slice(out.size() - size, size);
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}
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@ -159,7 +159,7 @@ void RSA::verify(const ByteBuffer& in, ByteBuffer& out)
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{
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auto in_integer = UnsignedBigInteger::import_data(in.data(), in.size());
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auto exp = NumberTheory::ModularPower(in_integer, m_public_key.public_exponent(), m_public_key.modulus());
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auto size = exp.export_data(out);
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auto size = exp.export_data(out.span());
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out = out.slice(out.size() - size, size);
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}
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