diff options
Diffstat (limited to 'comm/third_party/botan/src/lib/pk_pad/emsa_x931/emsa_x931.h')
-rw-r--r-- | comm/third_party/botan/src/lib/pk_pad/emsa_x931/emsa_x931.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/lib/pk_pad/emsa_x931/emsa_x931.h b/comm/third_party/botan/src/lib/pk_pad/emsa_x931/emsa_x931.h new file mode 100644 index 0000000000..a2fef0468a --- /dev/null +++ b/comm/third_party/botan/src/lib/pk_pad/emsa_x931/emsa_x931.h @@ -0,0 +1,52 @@ +/* +* X9.31 EMSA +* (C) 1999-2007 Jack Lloyd +* +* Botan is released under the Simplified BSD License (see license.txt) +*/ + +#ifndef BOTAN_EMSA_X931_H_ +#define BOTAN_EMSA_X931_H_ + +#include <botan/emsa.h> +#include <botan/hash.h> + +BOTAN_FUTURE_INTERNAL_HEADER(emsa_x931.h) + +namespace Botan { + +/** +* EMSA from X9.31 (EMSA2 in IEEE 1363) +* Useful for Rabin-Williams, also sometimes used with RSA in +* odd protocols. +*/ +class BOTAN_PUBLIC_API(2,0) EMSA_X931 final : public EMSA + { + public: + /** + * @param hash the hash function to use + */ + explicit EMSA_X931(HashFunction* hash); + + EMSA* clone() override { return new EMSA_X931(m_hash->clone()); } + + std::string name() const override; + + private: + void update(const uint8_t[], size_t) override; + secure_vector<uint8_t> raw_data() override; + + secure_vector<uint8_t> encoding_of(const secure_vector<uint8_t>&, size_t, + RandomNumberGenerator& rng) override; + + bool verify(const secure_vector<uint8_t>&, const secure_vector<uint8_t>&, + size_t) override; + + secure_vector<uint8_t> m_empty_hash; + std::unique_ptr<HashFunction> m_hash; + uint8_t m_hash_id; + }; + +} + +#endif |