diff options
Diffstat (limited to 'old/botan/src/cert/cvc/ecdsa_sig.h')
-rw-r--r-- | old/botan/src/cert/cvc/ecdsa_sig.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/old/botan/src/cert/cvc/ecdsa_sig.h b/old/botan/src/cert/cvc/ecdsa_sig.h new file mode 100644 index 0000000..15015c7 --- /dev/null +++ b/old/botan/src/cert/cvc/ecdsa_sig.h @@ -0,0 +1,88 @@ +/* +* ECDSA +* (C) 2007 Falko Strenzke, FlexSecure GmbH +* (C) 2008 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ + +#ifndef BOTAN_ECDSA_SIGNATURE_H__ +#define BOTAN_ECDSA_SIGNATURE_H__ + +#include <botan/bigint.h> +#include <botan/der_enc.h> +#include <botan/ber_dec.h> + +namespace Botan { + +class BOTAN_DLL ECDSA_Signature + { + public: + friend class ECDSA_Signature_Decoder; + + ECDSA_Signature() {} + ECDSA_Signature(const BigInt& r, const BigInt& s); + ECDSA_Signature(ECDSA_Signature const& other); + ECDSA_Signature const& operator=(ECDSA_Signature const& other); + + const BigInt& get_r() const { return m_r; } + const BigInt& get_s() const { return m_s; } + + /** + * return the r||s + */ + SecureVector<byte> const get_concatenation() const; + private: + BigInt m_r; + BigInt m_s; + }; + +/* Equality of ECDSA_Signature */ +bool operator==(const ECDSA_Signature& lhs, const ECDSA_Signature& rhs); +inline bool operator!=(const ECDSA_Signature& lhs, const ECDSA_Signature& rhs) + { + return !(lhs == rhs); + } + +class BOTAN_DLL ECDSA_Signature_Decoder + { + public: + void signature_bits(const MemoryRegion<byte>& bits) + { + BER_Decoder(bits) + .start_cons(SEQUENCE) + .decode(m_signature->m_r) + .decode(m_signature->m_s) + .verify_end() + .end_cons(); + } + ECDSA_Signature_Decoder(ECDSA_Signature* signature) : m_signature(signature) + {} + private: + ECDSA_Signature* m_signature; + }; + +class BOTAN_DLL ECDSA_Signature_Encoder + { + public: + MemoryVector<byte> signature_bits() const + { + return DER_Encoder() + .start_cons(SEQUENCE) + .encode(m_signature->get_r()) + .encode(m_signature->get_s()) + .end_cons() + .get_contents(); + } + ECDSA_Signature_Encoder(const ECDSA_Signature* signature) : m_signature(signature) + {} + private: + const ECDSA_Signature* m_signature; + }; + +ECDSA_Signature const decode_seq(MemoryRegion<byte> const& seq); +ECDSA_Signature const decode_concatenation(MemoryRegion<byte> const& concatenation); + +} + +#endif |