diff options
Diffstat (limited to 'comm/third_party/botan/src/lib/hash/sha2_32/sha2_32.h')
-rw-r--r-- | comm/third_party/botan/src/lib/hash/sha2_32/sha2_32.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/lib/hash/sha2_32/sha2_32.h b/comm/third_party/botan/src/lib/hash/sha2_32/sha2_32.h new file mode 100644 index 0000000000..90a0597212 --- /dev/null +++ b/comm/third_party/botan/src/lib/hash/sha2_32/sha2_32.h @@ -0,0 +1,95 @@ +/* +* SHA-{224,256} +* (C) 1999-2011 Jack Lloyd +* 2007 FlexSecure GmbH +* +* Botan is released under the Simplified BSD License (see license.txt) +*/ + +#ifndef BOTAN_SHA_224_256_H_ +#define BOTAN_SHA_224_256_H_ + +#include <botan/mdx_hash.h> + +BOTAN_FUTURE_INTERNAL_HEADER(sha2_32.h) + +namespace Botan { + +/** +* SHA-224 +*/ +class BOTAN_PUBLIC_API(2,0) SHA_224 final : public MDx_HashFunction + { + public: + std::string name() const override { return "SHA-224"; } + size_t output_length() const override { return 28; } + HashFunction* clone() const override { return new SHA_224; } + std::unique_ptr<HashFunction> copy_state() const override; + + void clear() override; + + std::string provider() const override; + + SHA_224() : MDx_HashFunction(64, true, true), m_digest(8) + { clear(); } + private: + void compress_n(const uint8_t[], size_t blocks) override; + void copy_out(uint8_t[]) override; + + secure_vector<uint32_t> m_digest; + }; + +/** +* SHA-256 +*/ +class BOTAN_PUBLIC_API(2,0) SHA_256 final : public MDx_HashFunction + { + public: + std::string name() const override { return "SHA-256"; } + size_t output_length() const override { return 32; } + HashFunction* clone() const override { return new SHA_256; } + std::unique_ptr<HashFunction> copy_state() const override; + + void clear() override; + + std::string provider() const override; + + SHA_256() : MDx_HashFunction(64, true, true), m_digest(8) + { clear(); } + + /* + * Perform a SHA-256 compression. For internal use + */ + static void compress_digest(secure_vector<uint32_t>& digest, + const uint8_t input[], + size_t blocks); + + private: + +#if defined(BOTAN_HAS_SHA2_32_ARMV8) + static void compress_digest_armv8(secure_vector<uint32_t>& digest, + const uint8_t input[], + size_t blocks); +#endif + +#if defined(BOTAN_HAS_SHA2_32_X86_BMI2) + static void compress_digest_x86_bmi2(secure_vector<uint32_t>& digest, + const uint8_t input[], + size_t blocks); +#endif + +#if defined(BOTAN_HAS_SHA2_32_X86) + static void compress_digest_x86(secure_vector<uint32_t>& digest, + const uint8_t input[], + size_t blocks); +#endif + + void compress_n(const uint8_t[], size_t blocks) override; + void copy_out(uint8_t[]) override; + + secure_vector<uint32_t> m_digest; + }; + +} + +#endif |