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https://github.com/Atmosphere-NX/Atmosphere-libs.git
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51 lines
1.9 KiB
C++
51 lines
1.9 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <vapours/common.hpp>
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#include <vapours/assert.hpp>
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#include <vapours/util.hpp>
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#include <vapours/crypto/impl/crypto_rsa_oaep_impl.hpp>
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#include <vapours/crypto/crypto_sha256_generator.hpp>
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namespace ams::crypto {
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inline size_t DecodeRsa2048OaepSha256(void *dst, size_t dst_size, const void *label_digest, size_t label_digest_size, const void *src, size_t src_size) {
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constexpr size_t BlockSize = 2048 / BITSIZEOF(u8);
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AMS_ABORT_UNLESS(src_size == BlockSize);
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impl::RsaOaepImpl<Sha256Generator> oaep;
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u8 enc[BlockSize];
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ON_SCOPE_EXIT { ClearMemory(enc, sizeof(enc)); };
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std::memcpy(enc, src, src_size);
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return oaep.Decode(dst, dst_size, label_digest, label_digest_size, enc, sizeof(enc));
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}
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inline size_t DecodeRsa4096OaepSha256(void *dst, size_t dst_size, const void *label_digest, size_t label_digest_size, const void *src, size_t src_size) {
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constexpr size_t BlockSize = 4096 / BITSIZEOF(u8);
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AMS_ABORT_UNLESS(src_size == BlockSize);
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impl::RsaOaepImpl<Sha256Generator> oaep;
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u8 enc[BlockSize];
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ON_SCOPE_EXIT { ClearMemory(enc, sizeof(enc)); };
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std::memcpy(enc, src, src_size);
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return oaep.Decode(dst, dst_size, label_digest, label_digest_size, enc, sizeof(enc));
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}
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}
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