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Diffstat (limited to 'old/botan/src/pubkey/ec_dompar/ec_dompar.h')
-rw-r--r-- | old/botan/src/pubkey/ec_dompar/ec_dompar.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/old/botan/src/pubkey/ec_dompar/ec_dompar.h b/old/botan/src/pubkey/ec_dompar/ec_dompar.h new file mode 100644 index 0000000..47971d8 --- /dev/null +++ b/old/botan/src/pubkey/ec_dompar/ec_dompar.h @@ -0,0 +1,121 @@ +/* +* ECDSA Domain Parameters +* (C) 2007 Falko Strenzke, FlexSecure GmbH +* 2008 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ + +#ifndef BOTAN_ECC_DOMAIN_PARAMETERS_H__ +#define BOTAN_ECC_DOMAIN_PARAMETERS_H__ + +#include <botan/point_gfp.h> +#include <botan/gfp_element.h> +#include <botan/curve_gfp.h> +#include <botan/bigint.h> +#include <botan/der_enc.h> +#include <botan/ber_dec.h> +#include <botan/alg_id.h> +#include <botan/pubkey_enums.h> + +namespace Botan { + +/** +* This class represents elliptic curce domain parameters +*/ +class BOTAN_DLL EC_Domain_Params + { + public: + + /** + * Construct Domain paramers from specified parameters + * @param curve elliptic curve + * @param base_point a base point + * @param order the order of the base point + * @param cofactor the cofactor + */ + EC_Domain_Params(const CurveGFp& curve, + const PointGFp& base_point, + const BigInt& order, + const BigInt& cofactor); + + /** + * Return domain parameter curve + * @result domain parameter curve + */ + const CurveGFp& get_curve() const + { + return m_curve; + } + + /** + * Return domain parameter curve + * @result domain parameter curve + */ + const PointGFp& get_base_point() const + { + return m_base_point; + } + + /** + * Return the order of the base point + * @result order of the base point + */ + const BigInt& get_order() const + { + return m_order; + } + + /** + * Return the cofactor + * @result the cofactor + */ + const BigInt& get_cofactor() const + { + return m_cofactor; + } + + /** + * Return the OID of these domain parameters + * @result the OID + */ + std::string get_oid() const { return m_oid; } + + private: + friend EC_Domain_Params get_EC_Dom_Pars_by_oid(std::string oid); + + CurveGFp m_curve; + PointGFp m_base_point; + BigInt m_order; + BigInt m_cofactor; + std::string m_oid; + }; + +bool operator==(EC_Domain_Params const& lhs, EC_Domain_Params const& rhs); + +inline bool operator!=(const EC_Domain_Params& lhs, + const EC_Domain_Params& rhs) + { + return !(lhs == rhs); + } + +enum EC_dompar_enc { ENC_EXPLICIT = 0, ENC_IMPLICITCA = 1, ENC_OID = 2 }; + +SecureVector<byte> encode_der_ec_dompar(EC_Domain_Params const& dom_pars, + EC_dompar_enc enc_type); + +EC_Domain_Params decode_ber_ec_dompar(SecureVector<byte> const& encoded); + +/** +* Factory function, the only way to obtain EC domain parameters with +* an OID. The demanded OID has to be registered in the InSiTo +* configuration. Consult the file ec_dompar.cpp for the default +* configuration. +* @param oid the oid of the demanded EC domain parameters +* @result the EC domain parameters associated with the OID +*/ +EC_Domain_Params get_EC_Dom_Pars_by_oid(std::string oid); + +} + +#endif |