public virtual void WriteObject( Asn1Encodable obj) { if (obj == null) { WriteNull(); } else { obj.ToAsn1Object().Encode(this); } }
/** * Creates a new <code>CommitmentTypeQualifier</code> instance. * * @param commitmentTypeIdentifier a <code>CommitmentTypeIdentifier</code> value * @param qualifier the qualifier, defined by the above field. */ public CommitmentTypeQualifier( DerObjectIdentifier commitmentTypeIdentifier, Asn1Encodable qualifier) { if (commitmentTypeIdentifier == null) throw new ArgumentNullException("commitmentTypeIdentifier"); this.commitmentTypeIdentifier = commitmentTypeIdentifier; if (qualifier != null) { this.qualifier = qualifier.ToAsn1Object(); } }
public SmimeCapability( DerObjectIdentifier capabilityID, Asn1Encodable parameters) { if (capabilityID == null) throw new ArgumentNullException("capabilityID"); this.capabilityID = capabilityID; if (parameters != null) { this.parameters = parameters.ToAsn1Object(); } }
public DerApplicationSpecific( bool isExplicit, int tag, Asn1Encodable obj) { Asn1Object asn1Obj = obj.ToAsn1Object(); byte[] data = asn1Obj.GetDerEncoded(); this.isConstructed = isExplicit || asn1Obj is Asn1Set || asn1Obj is Asn1Sequence; this.tag = tag; if (isExplicit) { this.octets = data; } else { int lenBytes = GetLengthOfHeader(data); byte[] tmp = new byte[data.Length - lenBytes]; Array.Copy(data, lenBytes, tmp, 0, tmp.Length); this.octets = tmp; } }
public BerOctetString( Asn1Encodable obj) : base(obj.ToAsn1Object()) { }
public static ICipherParameters GenerateCipherParameters( string algorithm, char[] password, bool wrongPkcs12Zero, Asn1Encodable pbeParameters) { string mechanism = (string)algorithms[Platform.ToUpperInvariant(algorithm)]; byte[] keyBytes = null; byte[] salt = null; int iterationCount = 0; if (IsPkcs12(mechanism)) { Pkcs12PbeParams pbeParams = Pkcs12PbeParams.GetInstance(pbeParameters); salt = pbeParams.GetIV(); iterationCount = pbeParams.Iterations.IntValue; keyBytes = PbeParametersGenerator.Pkcs12PasswordToBytes(password, wrongPkcs12Zero); } else if (IsPkcs5Scheme2(mechanism)) { // See below } else { PbeParameter pbeParams = PbeParameter.GetInstance(pbeParameters); salt = pbeParams.GetSalt(); iterationCount = pbeParams.IterationCount.IntValue; keyBytes = PbeParametersGenerator.Pkcs5PasswordToBytes(password); } ICipherParameters parameters = null; if (IsPkcs5Scheme2(mechanism)) { PbeS2Parameters s2p = PbeS2Parameters.GetInstance(pbeParameters.ToAsn1Object()); AlgorithmIdentifier encScheme = s2p.EncryptionScheme; DerObjectIdentifier encOid = encScheme.ObjectID; Asn1Object encParams = encScheme.Parameters.ToAsn1Object(); // TODO What about s2p.KeyDerivationFunc.ObjectID? Pbkdf2Params pbeParams = Pbkdf2Params.GetInstance(s2p.KeyDerivationFunc.Parameters.ToAsn1Object()); byte[] iv; if (encOid.Equals(PkcsObjectIdentifiers.RC2Cbc)) // PKCS5.B.2.3 { RC2CbcParameter rc2Params = RC2CbcParameter.GetInstance(encParams); iv = rc2Params.GetIV(); } else { iv = Asn1OctetString.GetInstance(encParams).GetOctets(); } salt = pbeParams.GetSalt(); iterationCount = pbeParams.IterationCount.IntValue; keyBytes = PbeParametersGenerator.Pkcs5PasswordToBytes(password); int keyLength = pbeParams.KeyLength != null ? pbeParams.KeyLength.IntValue * 8 : GeneratorUtilities.GetDefaultKeySize(encOid); PbeParametersGenerator gen = MakePbeGenerator( (string)algorithmType[mechanism], null, keyBytes, salt, iterationCount); parameters = gen.GenerateDerivedParameters(encOid.Id, keyLength); if (iv != null) { // FIXME? OpenSSL weirdness with IV of zeros (for ECB keys?) if (Arrays.AreEqual(iv, new byte[iv.Length])) { //Console.Error.Write("***** IV all 0 (length " + iv.Length + ") *****"); } else { parameters = new ParametersWithIV(parameters, iv); } } } else if (mechanism.StartsWith("PBEwithSHA-1")) { PbeParametersGenerator generator = MakePbeGenerator( (string) algorithmType[mechanism], new Sha1Digest(), keyBytes, salt, iterationCount); if (mechanism.Equals("PBEwithSHA-1and128bitAES-CBC-BC")) { parameters = generator.GenerateDerivedParameters("AES", 128, 128); } else if (mechanism.Equals("PBEwithSHA-1and192bitAES-CBC-BC")) { parameters = generator.GenerateDerivedParameters("AES", 192, 128); } else if (mechanism.Equals("PBEwithSHA-1and256bitAES-CBC-BC")) { parameters = generator.GenerateDerivedParameters("AES", 256, 128); } else if (mechanism.Equals("PBEwithSHA-1and128bitRC4")) { parameters = generator.GenerateDerivedParameters("RC4", 128); } else if (mechanism.Equals("PBEwithSHA-1and40bitRC4")) { parameters = generator.GenerateDerivedParameters("RC4", 40); } else if (mechanism.Equals("PBEwithSHA-1and3-keyDESEDE-CBC")) { parameters = generator.GenerateDerivedParameters("DESEDE", 192, 64); } else if (mechanism.Equals("PBEwithSHA-1and2-keyDESEDE-CBC")) { parameters = generator.GenerateDerivedParameters("DESEDE", 128, 64); } else if (mechanism.Equals("PBEwithSHA-1and128bitRC2-CBC")) { parameters = generator.GenerateDerivedParameters("RC2", 128, 64); } else if (mechanism.Equals("PBEwithSHA-1and40bitRC2-CBC")) { parameters = generator.GenerateDerivedParameters("RC2", 40, 64); } else if (mechanism.Equals("PBEwithSHA-1andDES-CBC")) { parameters = generator.GenerateDerivedParameters("DES", 64, 64); } else if (mechanism.Equals("PBEwithSHA-1andRC2-CBC")) { parameters = generator.GenerateDerivedParameters("RC2", 64, 64); } } else if (mechanism.StartsWith("PBEwithSHA-256")) { PbeParametersGenerator generator = MakePbeGenerator( (string) algorithmType[mechanism], new Sha256Digest(), keyBytes, salt, iterationCount); if (mechanism.Equals("PBEwithSHA-256and128bitAES-CBC-BC")) { parameters = generator.GenerateDerivedParameters("AES", 128, 128); } else if (mechanism.Equals("PBEwithSHA-256and192bitAES-CBC-BC")) { parameters = generator.GenerateDerivedParameters("AES", 192, 128); } else if (mechanism.Equals("PBEwithSHA-256and256bitAES-CBC-BC")) { parameters = generator.GenerateDerivedParameters("AES", 256, 128); } } else if (mechanism.StartsWith("PBEwithMD5")) { PbeParametersGenerator generator = MakePbeGenerator( (string)algorithmType[mechanism], new MD5Digest(), keyBytes, salt, iterationCount); if (mechanism.Equals("PBEwithMD5andDES-CBC")) { parameters = generator.GenerateDerivedParameters("DES", 64, 64); } else if (mechanism.Equals("PBEwithMD5andRC2-CBC")) { parameters = generator.GenerateDerivedParameters("RC2", 64, 64); } else if (mechanism.Equals("PBEwithMD5and128bitAES-CBC-OpenSSL")) { parameters = generator.GenerateDerivedParameters("AES", 128, 128); } else if (mechanism.Equals("PBEwithMD5and192bitAES-CBC-OpenSSL")) { parameters = generator.GenerateDerivedParameters("AES", 192, 128); } else if (mechanism.Equals("PBEwithMD5and256bitAES-CBC-OpenSSL")) { parameters = generator.GenerateDerivedParameters("AES", 256, 128); } } else if (mechanism.StartsWith("PBEwithMD2")) { PbeParametersGenerator generator = MakePbeGenerator( (string)algorithmType[mechanism], new MD2Digest(), keyBytes, salt, iterationCount); if (mechanism.Equals("PBEwithMD2andDES-CBC")) { parameters = generator.GenerateDerivedParameters("DES", 64, 64); } else if (mechanism.Equals("PBEwithMD2andRC2-CBC")) { parameters = generator.GenerateDerivedParameters("RC2", 64, 64); } } else if (mechanism.StartsWith("PBEwithHmac")) { string digestName = mechanism.Substring("PBEwithHmac".Length); IDigest digest = DigestUtilities.GetDigest(digestName); PbeParametersGenerator generator = MakePbeGenerator( (string) algorithmType[mechanism], digest, keyBytes, salt, iterationCount); int bitLen = digest.GetDigestSize() * 8; parameters = generator.GenerateDerivedMacParameters(bitLen); } Array.Clear(keyBytes, 0, keyBytes.Length); return FixDesParity(mechanism, parameters); }