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