mirrors/ladybird
0
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-07-28 19:59:17 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 9

LibCrypto: Add methods to convert OpenSSL BN <-> UnsignedBigInteger

Browse source 
These methods allow to convert between OpenSSL big numbers and ours.
This commit is contained in:
devgianlu 2024-12-23 18:15:15 +01:00 • committed by Ali Mohammad Pur
commit 130f890497
Notes: github-actions[bot] 2025-01-12 00:14:29 +00:00
3 changed files with 46 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

30
Libraries/LibCrypto/OpenSSL.cpp Normal file
View file

@ -0,0 +1,30 @@
/*
* Copyright (c) 2025, Altomani Gianluca <altomanigianluca@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/ByteBuffer.h>
#include <LibCrypto/OpenSSL.h>
#include <openssl/evp.h>
namespace Crypto {
ErrorOr<OpenSSL_BN> unsigned_big_integer_to_openssl_bignum(UnsignedBigInteger const& integer)
{
auto bn = TRY(OpenSSL_BN::create());
auto buf = TRY(ByteBuffer::create_uninitialized(integer.byte_length()));
auto integer_size = integer.export_data(buf.bytes());
OPENSSL_TRY_PTR(BN_bin2bn(buf.bytes().data(), integer_size, bn.ptr()));
return bn;
}
ErrorOr<UnsignedBigInteger> openssl_bignum_to_unsigned_big_integer(OpenSSL_BN const& bn)
{
auto size = BN_num_bytes(bn.ptr());
auto buf = TRY(ByteBuffer::create_uninitialized(size));
BN_bn2bin(bn.ptr(), buf.bytes().data());
return UnsignedBigInteger::import_data(buf.bytes().data(), size);
}
}