/// <summary> /// Revoke a subkey /// </summary> /// <param name="KeyID">subkey ID</param> /// <param name="skpKeySigner">revoker secret key</param> /// <param name="strPassphrase">revoker passphrase</param> /// <param name="exportable">exportable revocation</param> public void RevokeSubKey(ulong KeyID, TransportableSecretKey skpKeySigner, string strPassphrase, bool exportable) { TransportablePublicKey tspKey = this.PublicRing.Find(KeyID,false); if(tspKey == null) throw new Exception("Public Key not found"); if(tspKey.PrimaryKey.KeyID == KeyID) throw new Exception("This is a primary key... use RevokeKey method instead."); CertifiedPublicSubkey cps = null; foreach(CertifiedPublicSubkey cpsi in tspKey.SubKeys) { if(cpsi.Subkey.KeyID == KeyID) cps = cpsi; } bool allowed = false; ulong issuer = skpKeySigner.PrimaryKey.PublicKey.KeyID; if(issuer == tspKey.PrimaryKey.KeyID) { allowed = true; } else { foreach (SignaturePacket spPacket in tspKey.RevocationKeys) { foreach (BigInteger revoker in spPacket.FindRevokerKeys()) { if (revoker.ToString() == skpKeySigner.PrimaryKey.PublicKey.Fingerprint.ToString()) { allowed = true; } } } } if (allowed && cps.KeyBindingSignature.isRevocable()) { if (this.PublicRing.isRevoked(KeyID)) throw new Exception("Public SubKey alreadyRevoked"); SignaturePacket spSig = new SignaturePacket(); spSig.Version = SignaturePacketVersionNumbers.v4; spSig.HashAlgorithm = HashAlgorithms.SHA1; spSig.KeyID = skpKeySigner.PrimaryKey.PublicKey.KeyID; spSig.TimeCreated = DateTime.Now; SignatureSubPacket sspExportableSignature = new SignatureSubPacket(); sspExportableSignature.Type = SignatureSubPacketTypes.ExportableSignature; sspExportableSignature.ExportableSignature = exportable; spSig.AddSubPacket(sspExportableSignature, false); byte[] subkey = new byte[cps.Subkey.Length]; cps.Subkey.Header.CopyTo(subkey,0); cps.Subkey.Body.CopyTo(subkey,cps.Subkey.Header.Length); subkey[0]=0x99; byte[] mainkey = new byte[tspKey.PrimaryKey.Length]; tspKey.PrimaryKey.Header.CopyTo(mainkey,0); tspKey.PrimaryKey.Body.CopyTo(mainkey,tspKey.PrimaryKey.Header.Length); byte[] key = new byte[subkey.Length+mainkey.Length]; mainkey.CopyTo(key,0); subkey.CopyTo(key,mainkey.Length); spSig.SignatureType = SignatureTypes.SubkeyRevocationSignature; spSig.Sign(key, skpKeySigner.PrimaryKey, strPassphrase); cps.RevocationSignature=spSig; } else throw new Exception("Not allowed to revoke this subkey"); }
/// <summary> /// Revoke a key /// </summary> /// <param name="KeyID">key to be revoked</param> /// <param name="skpKeySigner">revoker secret key</param> /// <param name="strPassphrase">revoker passphrase</param> /// <param name="exportable">exportable revocation</param> public void RevokeKey(ulong KeyID, TransportableSecretKey skpKeySigner, string strPassphrase, bool exportable) { TransportablePublicKey tspKey = this.PublicRing.Find(KeyID,false); if (tspKey == null) throw new Exception("Public Key not found"); if (this.PublicRing.isRevoked(KeyID)) throw new Exception("Public Key alreadyRevoked"); if (tspKey.PrimaryKey.KeyID != KeyID) throw new Exception("This is not a Primary key... use Revoke Subkey method instead"); foreach (SignaturePacket sign in tspKey.PrimaryUserIDCert.Certificates) { if (!sign.isRevocable()) return; } bool isRevokerKey = false; if (KeyID == skpKeySigner.PrimaryKey.PublicKey.KeyID) { isRevokerKey = true; } else { foreach (SignaturePacket spPacket in tspKey.RevocationKeys) { foreach (BigInteger revoker in spPacket.FindRevokerKeys()) { if (revoker.ToString() == skpKeySigner.PrimaryKey.PublicKey.Fingerprint.ToString()) { isRevokerKey = true; } } } } if (!isRevokerKey) throw new Exception("You cannot revoke this key"); SignaturePacket spSig = new SignaturePacket(); spSig.Version = SignaturePacketVersionNumbers.v4; spSig.HashAlgorithm = HashAlgorithms.SHA1; spSig.KeyID = skpKeySigner.PrimaryKey.PublicKey.KeyID; spSig.TimeCreated = DateTime.Now; SignatureSubPacket sspExportableSignature = new SignatureSubPacket(); sspExportableSignature.Type = SignatureSubPacketTypes.ExportableSignature; sspExportableSignature.ExportableSignature = exportable; spSig.AddSubPacket(sspExportableSignature, false); PublicKeyPacket pkpKey = tspKey.PrimaryKey; byte[] key = new byte[tspKey.PrimaryKey.Length]; tspKey.PrimaryKey.Header.CopyTo(key,0); tspKey.PrimaryKey.Body.CopyTo(key,tspKey.PrimaryKey.Header.Length); spSig.SignatureType = SignatureTypes.KeyRevocationSignature; spSig.Sign(key, skpKeySigner.PrimaryKey, strPassphrase); tspKey.RevocationSignatures.Add(spSig); }
/// <summary> /// Revokes a key certified userID /// </summary> /// <param name="KeyID">key containing the certified user id</param> /// <param name="cuidTobeSigned">certified user id to be revoked</param> /// <param name="skpKeySigner">revoker secret key</param> /// <param name="strPassphrase">revoker passphrase</param> /// <param name="exportable">exportable revocation</param> public void RevokeKeyCertificate(ulong KeyID, CertifiedUserID cuidTobeSigned, TransportableSecretKey skpKeySigner, string strPassphrase, bool exportable) { TransportablePublicKey tspKey = this.PublicRing.Find(KeyID,false); if(tspKey == null) throw new Exception("Public Key not found"); bool found = false; CertifiedUserID toBeVerified = null; foreach(CertifiedUserID cui in tspKey.Certifications) { if(cui==cuidTobeSigned) { found=true; toBeVerified = cui; break; } } if (!found) throw new Exception("UserId not found among Key certificates"); found = false; foreach(SignaturePacket sign in toBeVerified.Certificates) { if(sign.KeyID == skpKeySigner.PrimaryKey.PublicKey.KeyID && sign.isRevocable()) found = true; } if (!found) throw new Exception("UserId not certified by this private key or not revocable"); SignaturePacket spSig = new SignaturePacket(); spSig.Version = SignaturePacketVersionNumbers.v4; spSig.HashAlgorithm = HashAlgorithms.SHA1; spSig.KeyID = skpKeySigner.PrimaryKey.PublicKey.KeyID; spSig.TimeCreated = DateTime.Now; SignatureSubPacket sspExportableSignature = new SignatureSubPacket(); sspExportableSignature.Type = SignatureSubPacketTypes.ExportableSignature; sspExportableSignature.ExportableSignature = exportable; spSig.AddSubPacket(sspExportableSignature, false); cuidTobeSigned.Revoke(spSig, skpKeySigner.PrimaryKey, strPassphrase, tspKey.PrimaryKey); }
/// <summary> /// Generate a key pair /// </summary> /// <param name="iKeySize">Encription key size</param> /// <param name="strPassphrase">passhrase for the key pair</param> /// <param name="userID">primary user id</param> /// <param name="email">user email</param> /// <param name="notation">xml encoded user info</param> /// <param name="expirationTime">expiration date of the primary key (new DateTime(0) == never)</param> /// <param name="keyType">1: RSA/DSA 0:Elgamal/DSA(DEFAULT)</param> /// <param name="isRevocableKey">revocable?</param> /// <param name="isRevocableSubkey">revocable subkey?</param> public void GenerateKey(int iKeySize, string strPassphrase, string userID, string email, string notation, DateTime expirationTime, int keyType, bool isRevocableKey, bool isRevocableSubkey) { if(iKeySize % 1024 != 0) throw new Exception("Keysize must be a 1024 multiple"); System.Security.Cryptography.RandomNumberGenerator rngRand; // let's first create the encryption key BigInteger[][] biEncryptionKey; if (keyType == 1) { // it's a RSA/DSA key biEncryptionKey = GenerateRSAEncryptionKey(iKeySize); } else { // it's an elgamal/DSA key DEFAULF biEncryptionKey = GenerateElGamalEncryptionKey(iKeySize); } // now the signature key BigInteger[][] biSignatureKey = GenerateDSASignatureKey(); PublicKeyPacket pkpSignatureKey = new PublicKeyPacket(false); pkpSignatureKey.Algorithm = AsymAlgorithms.DSA; pkpSignatureKey.KeyMaterial = biSignatureKey[0]; pkpSignatureKey.TimeCreated = DateTime.Now; pkpSignatureKey.Version = PublicKeyPacketVersionNumbers.v4; SecretKeyPacket skpSignatureKey = new SecretKeyPacket(false); skpSignatureKey.SymmetricalAlgorithm = SymAlgorithms.AES256; skpSignatureKey.PublicKey = pkpSignatureKey; skpSignatureKey.InitialVector = new byte[CipherHelper.CipherBlockSize(SymAlgorithms.AES256)]; rngRand = System.Security.Cryptography.RandomNumberGenerator.Create(); rngRand.GetBytes(skpSignatureKey.InitialVector); skpSignatureKey.EncryptKeyMaterial(biSignatureKey[1], strPassphrase); skpSignatureKey.PublicKey = pkpSignatureKey; PublicKeyPacket pkpEncryptionKey = new PublicKeyPacket(true); if (keyType == 0) { // it's an elgamal/DSA key pkpEncryptionKey.Algorithm = AsymAlgorithms.ElGamal_Encrypt_Only; } else if (keyType == 1) { // it's a RSA/DSA key pkpEncryptionKey.Algorithm = AsymAlgorithms.RSA_Encrypt_Only; } pkpEncryptionKey.KeyMaterial = biEncryptionKey[0]; pkpEncryptionKey.TimeCreated = DateTime.Now; pkpEncryptionKey.Version = PublicKeyPacketVersionNumbers.v4; SecretKeyPacket skpEncryptionKey = new SecretKeyPacket(true); skpEncryptionKey.SymmetricalAlgorithm = SymAlgorithms.AES256; skpEncryptionKey.PublicKey = pkpEncryptionKey; skpEncryptionKey.InitialVector = new byte[CipherHelper.CipherBlockSize(SymAlgorithms.AES256)]; rngRand = System.Security.Cryptography.RandomNumberGenerator.Create(); rngRand.GetBytes(skpEncryptionKey.InitialVector); skpEncryptionKey.EncryptKeyMaterial(biEncryptionKey[1], strPassphrase); skpEncryptionKey.PublicKey = pkpEncryptionKey; CertifiedUserID cuiUID = new CertifiedUserID(); UserIDPacket uipUID = new UserIDPacket(); uipUID.UserID = userID.Trim() + " <" + email.Trim() + ">"; cuiUID.UserID = uipUID; SignaturePacket spSelfSig = new SignaturePacket(); if (notation != null) { SignatureSubPacket sspNotation = new SignatureSubPacket(); sspNotation.Type = SignatureSubPacketTypes.NotationData; sspNotation.NotationName = "PersonalData"; sspNotation.NotationValue = notation; spSelfSig.AddSubPacket(sspNotation,false); } if (expirationTime.Ticks != 0) { SignatureSubPacket sspExpiration = new SignatureSubPacket(); sspExpiration.Type = SignatureSubPacketTypes.KeyExpirationTime; sspExpiration.KeyExpirationTime = new DateTime(expirationTime.Ticks + (new DateTime(1970,1,2)).Ticks - pkpEncryptionKey.TimeCreated.Ticks); spSelfSig.AddSubPacket(sspExpiration, true); } if (!isRevocableKey) { SignatureSubPacket sspRevocable = new SignatureSubPacket(); sspRevocable.Type = SignatureSubPacketTypes.Revocable; sspRevocable.Revocable = isRevocableKey; spSelfSig.AddSubPacket(sspRevocable, true); } SignatureSubPacket sspPrimaryUID = new SignatureSubPacket(); sspPrimaryUID.Type = SignatureSubPacketTypes.PrimaryUserID; sspPrimaryUID.Revocable = true; spSelfSig.AddSubPacket(sspPrimaryUID, true); spSelfSig.Version = SignaturePacketVersionNumbers.v4; spSelfSig.HashAlgorithm = HashAlgorithms.SHA1; spSelfSig.KeyID = pkpSignatureKey.KeyID; spSelfSig.TimeCreated = DateTime.Now; SignatureSubPacket sspPrimaryUserID = new SignatureSubPacket(); sspPrimaryUserID.Type = SignatureSubPacketTypes.PrimaryUserID; sspPrimaryUserID.PrimaryUserID = true; spSelfSig.AddSubPacket(sspPrimaryUserID, true); SignatureSubPacket sspPreferedSymAlgos = new SignatureSubPacket(); sspPreferedSymAlgos.Type = SignatureSubPacketTypes.PreferedSymmetricAlgorithms; sspPreferedSymAlgos.PreferedSymAlgos = new SymAlgorithms[] {SymAlgorithms.AES256, SymAlgorithms.AES192, SymAlgorithms.AES256, SymAlgorithms.CAST5, SymAlgorithms.Triple_DES}; spSelfSig.AddSubPacket(sspPreferedSymAlgos, true); SignatureSubPacket sspPreferedHashAlgos = new SignatureSubPacket(); sspPreferedHashAlgos.Type = SignatureSubPacketTypes.PreferedHashAlgorithms; sspPreferedHashAlgos.PreferedHashAlgos = new HashAlgorithms[] {HashAlgorithms.SHA1}; spSelfSig.AddSubPacket(sspPreferedHashAlgos, true); cuiUID.Certificates = new System.Collections.ArrayList(); cuiUID.Sign(spSelfSig, skpSignatureKey, strPassphrase, pkpSignatureKey); CertifiedPublicSubkey cpsEncryptionKey = new CertifiedPublicSubkey(); cpsEncryptionKey.Subkey = pkpEncryptionKey; cpsEncryptionKey.SignKeyBindingSignature(pkpSignatureKey, skpSignatureKey, strPassphrase, expirationTime, isRevocableSubkey); TransportablePublicKey tpkPublicKey = new TransportablePublicKey(); tpkPublicKey.PrimaryKey = pkpSignatureKey; tpkPublicKey.SubKeys.Add(cpsEncryptionKey); tpkPublicKey.Certifications.Add(cuiUID); this.PublicRing.AddPublicKey(tpkPublicKey); TransportableSecretKey tskSecretKey = new TransportableSecretKey(); tskSecretKey.PrimaryKey = skpSignatureKey; tskSecretKey.SubKeys.Add(skpEncryptionKey); tskSecretKey.UserIDs.Add(uipUID); this.SecretRing.AddSecretKey(tskSecretKey); }
/// <summary> /// Adds a userID to the specified key /// </summary> /// <param name="userID">user id to be added</param> /// <param name="email">user email address</param> /// <param name="infos">xml encoded user infos</param> /// <param name="strPassphrase">passphrase of the secret key we want to add the user id to</param> /// <param name="KeyID">keyID of the key we want to add the userID to</param> /// <param name="isRevocable">is a revocable keyID</param> public void AddUserID(string userID, string email, string infos, string strPassphrase, ulong KeyID, bool isRevocable) { TransportablePublicKey tpkKey = this.PublicRing.Find(KeyID,false); TransportableSecretKey tskKey = this.SecretRing.Find(KeyID); if (tpkKey != null && tskKey != null) { CertifiedUserID cuiUID = new CertifiedUserID(); UserIDPacket uipUID = new UserIDPacket(); uipUID.UserID = userID.Trim() + " <" + email.Trim() + ">"; cuiUID.UserID = uipUID; SecretKeyPacket skpSignatureKey = tskKey.FindKey(AsymActions.Sign); SignaturePacket spSelfSig = new SignaturePacket(); if (infos != null) { SignatureSubPacket sspNotation = new SignatureSubPacket(); sspNotation.Type = SignatureSubPacketTypes.NotationData; sspNotation.NotationName = "PersonalData"; sspNotation.NotationValue = infos; spSelfSig.AddSubPacket(sspNotation,false); } if (!isRevocable) { SignatureSubPacket sspRevocable = new SignatureSubPacket(); sspRevocable.Type = SignatureSubPacketTypes.Revocable; sspRevocable.Revocable = isRevocable; spSelfSig.AddSubPacket(sspRevocable, true); } SignatureSubPacket sspPrimaryUID = new SignatureSubPacket(); sspPrimaryUID.Type = SignatureSubPacketTypes.PrimaryUserID; sspPrimaryUID.Revocable = false; spSelfSig.AddSubPacket(sspPrimaryUID, true); spSelfSig.Version = SignaturePacketVersionNumbers.v4; spSelfSig.HashAlgorithm = HashAlgorithms.SHA1; spSelfSig.KeyID = skpSignatureKey.PublicKey.KeyID; spSelfSig.TimeCreated = DateTime.Now; cuiUID.Certificates = new System.Collections.ArrayList(); cuiUID.Sign(spSelfSig, skpSignatureKey, strPassphrase, tpkKey.PrimaryKey); tpkKey.Certifications.Add(cuiUID); tskKey.UserIDs.Add(uipUID); return; } throw new Exception("Keys not found"); }
/// <summary> /// Signs a key /// </summary> /// <param name="tspKey">key to be signed</param> /// <param name="cuidTobeSigned">user id to be signed</param> /// <param name="skpKeySigner">signer private key</param> /// <param name="strPassphrase">signer passphrase</param> /// <param name="exportable">exportable signature</param> /// <param name="expirationTime">expiration time (new DateTime(0) == never)</param> /// <param name="isRevocable"></param> public void SignKey(TransportablePublicKey tspKey, CertifiedUserID cuidTobeSigned, TransportableSecretKey skpKeySigner, string strPassphrase, bool exportable, DateTime expirationTime, bool isRevocable) { SignaturePacket spSig = new SignaturePacket(); spSig.Version = SignaturePacketVersionNumbers.v4; spSig.HashAlgorithm = HashAlgorithms.SHA1; spSig.KeyID = skpKeySigner.PrimaryKey.PublicKey.KeyID; spSig.TimeCreated = DateTime.Now; SignatureSubPacket sspExportableSignature = new SignatureSubPacket(); sspExportableSignature.Type = SignatureSubPacketTypes.ExportableSignature; sspExportableSignature.ExportableSignature = exportable; spSig.AddSubPacket(sspExportableSignature, false); if (!isRevocable) { SignatureSubPacket sspRevocable = new SignatureSubPacket(); sspRevocable.Type = SignatureSubPacketTypes.Revocable; sspRevocable.Revocable = isRevocable; spSig.AddSubPacket(sspRevocable, true); } if (expirationTime.Ticks != 0) { SignatureSubPacket sspExpiration = new SignatureSubPacket(); sspExpiration.Type = SignatureSubPacketTypes.KeyExpirationTime; sspExpiration.KeyExpirationTime = new DateTime(expirationTime.Ticks + (new DateTime(1970,1,2)).Ticks - tspKey.PrimaryKey.TimeCreated.Ticks); spSig.AddSubPacket(sspExpiration, true); } cuidTobeSigned.Sign(spSig, skpKeySigner.PrimaryKey, strPassphrase, tspKey.PrimaryKey); }
public void SignKey(ulong lSignedKeyID, ulong lSigningKeyID, string strUserID, int nIntroducerDepth, bool bIsExportable, int nType, string strPassphrase) { TransportableSecretKey tskKey = skrKeyRing.Find(lSigningKeyID); SecretKeyPacket skpSignatureKey = tskKey.FindKey(AsymActions.Sign); TransportablePublicKey tpkKey = pkrKeyRing.Find(lSignedKeyID, false); SignaturePacket spCertificate = new SignaturePacket(); spCertificate.SignatureType = (SignatureTypes)nType; spCertificate.Version = SignaturePacketVersionNumbers.v4; spCertificate.HashAlgorithm = HashAlgorithms.SHA1; spCertificate.KeyID = skpSignatureKey.PublicKey.KeyID; spCertificate.TimeCreated = DateTime.Now; CertifiedUserID cuiID = null; IEnumerator ieUserIDs = tpkKey.Certifications.GetEnumerator(); while (ieUserIDs.MoveNext()) { if (!(ieUserIDs.Current is CertifiedUserID)) continue; CertifiedUserID cuiThisID = (CertifiedUserID)ieUserIDs.Current; if (cuiThisID.ToString() == strUserID) { cuiID = cuiThisID; } } if (cuiID == null) throw new Exception("UserID could not be found!"); if (bIsExportable == false) { SignatureSubPacket sspNotExportable = new SignatureSubPacket(); sspNotExportable.Type = SignatureSubPacketTypes.ExportableSignature; sspNotExportable.ExportableSignature = false; spCertificate.AddSubPacket(sspNotExportable, true); } if (nIntroducerDepth > 0) { SignatureSubPacket sspTrust = new SignatureSubPacket(); sspTrust.Type = SignatureSubPacketTypes.TrustSignature; sspTrust.TrustLevel = (byte)nIntroducerDepth; sspTrust.TrustAmount = 120; spCertificate.AddSubPacket(sspTrust, true); } cuiID.Sign(spCertificate, skpSignatureKey, strPassphrase, tpkKey.PrimaryKey); tpkKey.Certifications.Remove(cuiID); tpkKey.Certifications.Add(cuiID); pkrKeyRing.Delete(lSignedKeyID); pkrKeyRing.AddPublicKey(tpkKey); pkrKeyRing.Save(); }
public void GenerateKey(string strName, string strEmail, string strKeyType, int iKeySize, long lExpiration, string strPassphrase) { if (strKeyType == "ElGamal/DSA") { System.Security.Cryptography.RandomNumberGenerator rngRand = System.Security.Cryptography.RandomNumberGenerator.Create(); // let's first create the encryption key BigInteger[][] biEncryptionKey = GenerateEncryptionKey(iKeySize); // now the signature key BigInteger[][] biSignatureKey = GenerateSignatureKey(); PublicKeyPacket pkpSignatureKey = new PublicKeyPacket(false); pkpSignatureKey.Algorithm = AsymAlgorithms.DSA; pkpSignatureKey.KeyMaterial = biSignatureKey[0]; pkpSignatureKey.TimeCreated = DateTime.Now; pkpSignatureKey.Version = PublicKeyPacketVersionNumbers.v4; SecretKeyPacket skpSignatureKey = new SecretKeyPacket(false); skpSignatureKey.SymmetricalAlgorithm = SymAlgorithms.AES256; skpSignatureKey.PublicKey = pkpSignatureKey; skpSignatureKey.InitialVector = new byte[CipherHelper.CipherBlockSize(SymAlgorithms.AES256)]; rngRand.GetBytes(skpSignatureKey.InitialVector); skpSignatureKey.EncryptKeyMaterial(biSignatureKey[1], strPassphrase); skpSignatureKey.PublicKey = pkpSignatureKey; PublicKeyPacket pkpEncryptionKey = new PublicKeyPacket(true); pkpEncryptionKey.Algorithm = AsymAlgorithms.ElGamal_Encrypt_Only; pkpEncryptionKey.KeyMaterial = biEncryptionKey[0]; pkpEncryptionKey.TimeCreated = DateTime.Now; pkpEncryptionKey.Version = PublicKeyPacketVersionNumbers.v4; SecretKeyPacket skpEncryptionKey = new SecretKeyPacket(true); skpEncryptionKey.SymmetricalAlgorithm = SymAlgorithms.AES256; skpEncryptionKey.PublicKey = pkpEncryptionKey; skpEncryptionKey.InitialVector = new byte[CipherHelper.CipherBlockSize(SymAlgorithms.AES256)]; rngRand.GetBytes(skpEncryptionKey.InitialVector); skpEncryptionKey.EncryptKeyMaterial(biEncryptionKey[1], strPassphrase); skpEncryptionKey.PublicKey = pkpEncryptionKey; CertifiedUserID cuiUID = new CertifiedUserID(); UserIDPacket uipUID = new UserIDPacket(); uipUID.UserID = strName.Trim() + " <" + strEmail.Trim() + ">"; cuiUID.UserID = uipUID; SignaturePacket spSelfSig = new SignaturePacket(); spSelfSig.Version = SignaturePacketVersionNumbers.v4; spSelfSig.HashAlgorithm = HashAlgorithms.SHA1; spSelfSig.KeyID = pkpSignatureKey.KeyID; spSelfSig.TimeCreated = DateTime.Now; SignatureSubPacket sspPrimaryUserID = new SignatureSubPacket(); sspPrimaryUserID.Type = SignatureSubPacketTypes.PrimaryUserID; sspPrimaryUserID.PrimaryUserID = true; spSelfSig.AddSubPacket(sspPrimaryUserID, true); SignatureSubPacket sspPreferedSymAlgos = new SignatureSubPacket(); sspPreferedSymAlgos.Type = SignatureSubPacketTypes.PreferedSymmetricAlgorithms; sspPreferedSymAlgos.PreferedSymAlgos = new SymAlgorithms[] {SymAlgorithms.AES256, SymAlgorithms.AES192, SymAlgorithms.AES256, SymAlgorithms.CAST5, SymAlgorithms.Triple_DES}; spSelfSig.AddSubPacket(sspPreferedSymAlgos, true); SignatureSubPacket sspPreferedHashAlgos = new SignatureSubPacket(); sspPreferedHashAlgos.Type = SignatureSubPacketTypes.PreferedHashAlgorithms; sspPreferedHashAlgos.PreferedHashAlgos = new HashAlgorithms[] {HashAlgorithms.SHA1}; spSelfSig.AddSubPacket(sspPreferedHashAlgos, true); if (lExpiration != 0) { SignatureSubPacket sspExpiration = new SignatureSubPacket(); sspExpiration.Type = SignatureSubPacketTypes.SignatureExpirationTime; sspExpiration.SignatureExpirationTime = new DateTime(lExpiration); spSelfSig.AddSubPacket(sspExpiration, true); } cuiUID.Certificates = new System.Collections.ArrayList(); cuiUID.Sign(spSelfSig, skpSignatureKey, strPassphrase, pkpSignatureKey); CertifiedPublicSubkey cpsEncryptionKey = new CertifiedPublicSubkey(); cpsEncryptionKey.Subkey = pkpEncryptionKey; cpsEncryptionKey.SignKeyBindingSignature(pkpSignatureKey, skpSignatureKey, strPassphrase, new DateTime(lExpiration), true); TransportablePublicKey tpkPublicKey = new TransportablePublicKey(); tpkPublicKey.PrimaryKey = pkpSignatureKey; tpkPublicKey.SubKeys.Add(cpsEncryptionKey); tpkPublicKey.Certifications.Add(cuiUID); TransportableSecretKey tskSecretKey = new TransportableSecretKey(); tskSecretKey.PrimaryKey = skpSignatureKey; tskSecretKey.SubKeys.Add(skpEncryptionKey); tskSecretKey.UserIDs.Add(uipUID); this.pkrKeyRing.AddPublicKey(tpkPublicKey); this.skrKeyRing.AddSecretKey(tskSecretKey); pkrKeyRing.Save(); skrKeyRing.Save(); // it's an RSA key } else if (strKeyType == "RSA") { } }