mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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65 lines
2.4 KiB
C++
65 lines
2.4 KiB
C++
/*
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* Copyright (c) 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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#include <vapours.hpp>
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namespace ams::crypto::impl {
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#ifdef ATMOSPHERE_IS_STRATOSPHERE
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void Sha256Impl::Initialize() {
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static_assert(sizeof(this->state) == sizeof(::Sha256Context));
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::sha256ContextCreate(reinterpret_cast<::Sha256Context *>(std::addressof(this->state)));
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}
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void Sha256Impl::Update(const void *data, size_t size) {
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static_assert(sizeof(this->state) == sizeof(::Sha256Context));
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::sha256ContextUpdate(reinterpret_cast<::Sha256Context *>(std::addressof(this->state)), data, size);
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}
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void Sha256Impl::GetHash(void *dst, size_t size) {
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static_assert(sizeof(this->state) == sizeof(::Sha256Context));
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AMS_ASSERT(size >= HashSize);
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::sha256ContextGetHash(reinterpret_cast<::Sha256Context *>(std::addressof(this->state)), dst);
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}
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void Sha256Impl::InitializeWithContext(const Sha256Context *context) {
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static_assert(sizeof(this->state) == sizeof(::Sha256Context));
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/* Copy state in from the context. */
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std::memcpy(this->state.intermediate_hash, context->intermediate_hash, sizeof(this->state.intermediate_hash));
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this->state.bits_consumed = context->bits_consumed;
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/* Clear the rest of state. */
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std::memset(this->state.buffer, 0, sizeof(this->state.buffer));
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this->state.num_buffered = 0;
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this->state.finalized = false;
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}
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size_t Sha256Impl::GetContext(Sha256Context *context) const {
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static_assert(sizeof(this->state) == sizeof(::Sha256Context));
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std::memcpy(context->intermediate_hash, this->state.intermediate_hash, sizeof(context->intermediate_hash));
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context->bits_consumed = this->state.bits_consumed;
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return this->state.num_buffered;
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}
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#else
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/* TODO: Non-EL0 implementation. */
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#endif
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} |