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-rw-r--r--src/pubkey/ec_dompar/ec_dompar.h81
1 files changed, 44 insertions, 37 deletions
diff --git a/src/pubkey/ec_dompar/ec_dompar.h b/src/pubkey/ec_dompar/ec_dompar.h
index f5f573ba9..cc55aa4df 100644
--- a/src/pubkey/ec_dompar/ec_dompar.h
+++ b/src/pubkey/ec_dompar/ec_dompar.h
@@ -2,7 +2,7 @@
* ECC Domain Parameters
*
* (C) 2007 Falko Strenzke, FlexSecure GmbH
-* 2008 Jack Lloyd
+* 2008-2010 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
@@ -22,10 +22,15 @@ namespace Botan {
/**
* This class represents elliptic curce domain parameters
*/
+enum EC_Domain_Params_Encoding {
+ EC_DOMPAR_ENC_EXPLICIT = 0,
+ EC_DOMPAR_ENC_IMPLICITCA = 1,
+ EC_DOMPAR_ENC_OID = 2
+};
+
class BOTAN_DLL EC_Domain_Params
{
public:
-
/**
* Construct Domain paramers from specified parameters
* @param curve elliptic curve
@@ -36,78 +41,80 @@ class BOTAN_DLL EC_Domain_Params
EC_Domain_Params(const CurveGFp& curve,
const PointGFp& base_point,
const BigInt& order,
- const BigInt& cofactor);
+ const BigInt& cofactor) :
+ curve(curve),
+ base_point(base_point),
+ order(order),
+ cofactor(cofactor),
+ oid("")
+ {}
+
+ /**
+ * Decode a BER encoded ECC domain parameter set
+ * @param ber_encoding the bytes of the BER encoding
+ */
+ EC_Domain_Params(const MemoryRegion<byte>& ber_encoding);
+
+ /**
+ * Create the DER encoding of this domain
+ * @param form of encoding to use
+ * @returns bytes encododed as DER
+ */
+ SecureVector<byte> DER_encode(EC_Domain_Params_Encoding form) const;
/**
* Return domain parameter curve
* @result domain parameter curve
*/
- const CurveGFp& get_curve() const
- {
- return m_curve;
- }
+ const CurveGFp& get_curve() const { return curve; }
/**
* Return domain parameter curve
* @result domain parameter curve
*/
- const PointGFp& get_base_point() const
- {
- return m_base_point;
- }
+ const PointGFp& get_base_point() const { return base_point; }
/**
* Return the order of the base point
* @result order of the base point
*/
- const BigInt& get_order() const
- {
- return m_order;
- }
+ const BigInt& get_order() const { return order; }
/**
* Return the cofactor
* @result the cofactor
*/
- const BigInt& get_cofactor() const
- {
- return m_cofactor;
- }
+ const BigInt& get_cofactor() const { return cofactor; }
/**
* Return the OID of these domain parameters
* @result the OID
*/
- std::string get_oid() const { return m_oid; }
+ std::string get_oid() const { return oid; }
+
+ bool operator==(const EC_Domain_Params& other) const
+ {
+ return ((get_curve() == other.get_curve()) &&
+ (get_base_point() == other.get_base_point()) &&
+ (get_order() == other.get_order()) &&
+ (get_cofactor() == other.get_cofactor()));
+ }
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;
+ CurveGFp curve;
+ PointGFp base_point;
+ BigInt order, cofactor;
+ std::string oid;
};
-bool BOTAN_DLL 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>
-BOTAN_DLL encode_der_ec_dompar(EC_Domain_Params const& dom_pars,
- EC_dompar_enc enc_type);
-
-EC_Domain_Params
-BOTAN_DLL 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