/** * initialise the key generator. * * @param param the parameters to be used for key generation */ public void Init( KeyGenerationParameters parameters) { if (parameters == null) throw new ArgumentNullException("parameters"); this.uninitialised = false; engineInit(parameters); }
public void Init( KeyGenerationParameters parameters) { if (parameters == null) throw new ArgumentNullException("parameters"); // Note: If we start accepting instances of KeyGenerationParameters, // must apply constraint checking on strength (see DsaParametersGenerator.Init) this.param = (DsaKeyGenerationParameters) parameters; }
protected virtual void engineInit( KeyGenerationParameters parameters) { this.random = parameters.Random; this.strength = (parameters.Strength + 7) / 8; }
public void Init( KeyGenerationParameters parameters) { if (parameters is RsaKeyGenerationParameters) { this.param = (RsaKeyGenerationParameters)parameters; } else { this.param = new RsaKeyGenerationParameters( DefaultPublicExponent, parameters.Random, parameters.Strength, DefaultTests); } }
public void Init( KeyGenerationParameters parameters) { if (parameters is ECKeyGenerationParameters) { ECKeyGenerationParameters ecP = (ECKeyGenerationParameters) parameters; this.publicKeyParamSet = ecP.PublicKeyParamSet; this.parameters = ecP.DomainParameters; } else { DerObjectIdentifier oid; switch (parameters.Strength) { case 192: oid = X9ObjectIdentifiers.Prime192v1; break; case 224: oid = SecObjectIdentifiers.SecP224r1; break; case 239: oid = X9ObjectIdentifiers.Prime239v1; break; case 256: oid = X9ObjectIdentifiers.Prime256v1; break; case 384: oid = SecObjectIdentifiers.SecP384r1; break; case 521: oid = SecObjectIdentifiers.SecP521r1; break; default: throw new InvalidParameterException("unknown key size."); } X9ECParameters ecps = FindECCurveByOid(oid); this.parameters = new ECDomainParameters( ecps.Curve, ecps.G, ecps.N, ecps.H, ecps.GetSeed()); } this.random = parameters.Random; if (this.random == null) { this.random = new SecureRandom(); } }