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crypto: add Sha256Context

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This commit is contained in:
Michael Scire 2020-03-11 03:26:55 -07:00
parent 45f8343659
commit 70367e3e7c
3 changed files with 59 additions and 0 deletions
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17
libraries/libvapours/include/vapours/crypto/impl/crypto_sha256_impl.hpp
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@ -21,6 +21,12 @@
#include <vapours/crypto/impl/crypto_hash_function.hpp>
#include <vapours/crypto/crypto_memory_clear.hpp>
namespace ams::crypto {
struct Sha256Context;
}
namespace ams::crypto::impl {
class Sha256Impl {
@ -47,6 +53,17 @@ namespace ams::crypto::impl {
void Initialize();
void Update(const void *data, size_t size);
void GetHash(void *dst, size_t size);
void InitializeWithContext(const Sha256Context *context);
size_t GetContext(Sha256Context *context) const;
size_t GetBufferedDataSize() const { return this->state.num_buffered; }
void GetBufferedData(void *dst, size_t dst_size) const {
AMS_ASSERT(dst_size >= this->GetBufferedDataSize());
std::memcpy(dst, this->state.buffer, this->GetBufferedDataSize());
}
};
/* static_assert(HashFunction<Sha256Impl>); */