private ExtractKeyData ( char passPhrase ) : byte[] | ||
passPhrase | char | |
Результат | byte[] |
internal static PgpSecretKey DoCopyWithNewPassword(PgpSecretKey key, byte[] rawOldPassPhrase, byte[] rawNewPassPhrase, bool clearPassPhrase, SymmetricKeyAlgorithmTag newEncAlgorithm, SecureRandom rand) { if (key.IsPrivateKeyEmpty) { throw new PgpException("no private key in this SecretKey - public key present only."); } byte[] array = key.ExtractKeyData(rawOldPassPhrase, clearPassPhrase); int num = key.secret.S2kUsage; byte[] iv = null; S2k s2k = null; PublicKeyPacket publicKeyPacket = key.secret.PublicKeyPacket; byte[] array2; if (newEncAlgorithm == SymmetricKeyAlgorithmTag.Null) { num = 0; if (key.secret.S2kUsage == 254) { array2 = new byte[array.Length - 18]; global::System.Array.Copy((global::System.Array)array, 0, (global::System.Array)array2, 0, array2.Length - 2); byte[] array3 = Checksum(useSha1: false, array2, array2.Length - 2); array2[array2.Length - 2] = array3[0]; array2[array2.Length - 1] = array3[1]; } else { array2 = array; } } else { if (num == 0) { num = 255; } try { array2 = ((publicKeyPacket.Version < 4) ? EncryptKeyDataV3(array, newEncAlgorithm, rawNewPassPhrase, clearPassPhrase, rand, out s2k, out iv) : EncryptKeyDataV4(array, newEncAlgorithm, HashAlgorithmTag.Sha1, rawNewPassPhrase, clearPassPhrase, rand, out s2k, out iv)); } catch (PgpException ex) { throw ex; } catch (global::System.Exception exception) { throw new PgpException("Exception encrypting key", exception); } } SecretKeyPacket secretKeyPacket = ((!(key.secret is SecretSubkeyPacket)) ? new SecretKeyPacket(publicKeyPacket, newEncAlgorithm, num, s2k, iv, array2) : new SecretSubkeyPacket(publicKeyPacket, newEncAlgorithm, num, s2k, iv, array2)); return(new PgpSecretKey(secretKeyPacket, key.pub)); }
internal static PgpSecretKey DoCopyWithNewPassword( PgpSecretKey key, byte[] rawOldPassPhrase, byte[] rawNewPassPhrase, bool clearPassPhrase, SymmetricKeyAlgorithmTag newEncAlgorithm, SecureRandom rand) { if (key.IsPrivateKeyEmpty) throw new PgpException("no private key in this SecretKey - public key present only."); byte[] rawKeyData = key.ExtractKeyData(rawOldPassPhrase, clearPassPhrase); int s2kUsage = key.secret.S2kUsage; byte[] iv = null; S2k s2k = null; byte[] keyData; PublicKeyPacket pubKeyPacket = key.secret.PublicKeyPacket; if (newEncAlgorithm == SymmetricKeyAlgorithmTag.Null) { s2kUsage = SecretKeyPacket.UsageNone; if (key.secret.S2kUsage == SecretKeyPacket.UsageSha1) // SHA-1 hash, need to rewrite Checksum { keyData = new byte[rawKeyData.Length - 18]; Array.Copy(rawKeyData, 0, keyData, 0, keyData.Length - 2); byte[] check = Checksum(false, keyData, keyData.Length - 2); keyData[keyData.Length - 2] = check[0]; keyData[keyData.Length - 1] = check[1]; } else { keyData = rawKeyData; } } else { if (s2kUsage == SecretKeyPacket.UsageNone) { s2kUsage = SecretKeyPacket.UsageChecksum; } try { if (pubKeyPacket.Version >= 4) { keyData = EncryptKeyDataV4(rawKeyData, newEncAlgorithm, HashAlgorithmTag.Sha1, rawNewPassPhrase, clearPassPhrase, rand, out s2k, out iv); } else { keyData = EncryptKeyDataV3(rawKeyData, newEncAlgorithm, rawNewPassPhrase, clearPassPhrase, rand, out s2k, out iv); } } catch (PgpException e) { throw e; } catch (Exception e) { throw new PgpException("Exception encrypting key", e); } } SecretKeyPacket secret; if (key.secret is SecretSubkeyPacket) { secret = new SecretSubkeyPacket(pubKeyPacket, newEncAlgorithm, s2kUsage, s2k, iv, keyData); } else { secret = new SecretKeyPacket(pubKeyPacket, newEncAlgorithm, s2kUsage, s2k, iv, keyData); } return new PgpSecretKey(secret, key.pub); }
/// <summary> /// Return a copy of the passed in secret key, encrypted using a new password /// and the passed in algorithm. /// </summary> /// <param name="key">The PgpSecretKey to be copied.</param> /// <param name="oldPassPhrase">The current password for the key.</param> /// <param name="newPassPhrase">The new password for the key.</param> /// <param name="newEncAlgorithm">The algorithm to be used for the encryption.</param> /// <param name="rand">Source of randomness.</param> public static PgpSecretKey CopyWithNewPassword( PgpSecretKey key, char[] oldPassPhrase, char[] newPassPhrase, SymmetricKeyAlgorithmTag newEncAlgorithm, SecureRandom rand) { if (key.IsPrivateKeyEmpty) { throw new PgpException("no private key in this SecretKey - public key present only."); } byte[] rawKeyData = key.ExtractKeyData(oldPassPhrase); int s2kUsage = key.secret.S2kUsage; byte[] iv = null; S2k s2k = null; byte[] keyData; PublicKeyPacket pubKeyPacket = key.secret.PublicKeyPacket; if (newEncAlgorithm == SymmetricKeyAlgorithmTag.Null) { s2kUsage = SecretKeyPacket.UsageNone; if (key.secret.S2kUsage == SecretKeyPacket.UsageSha1) // SHA-1 hash, need to rewrite Checksum { keyData = new byte[rawKeyData.Length - 18]; Array.Copy(rawKeyData, 0, keyData, 0, keyData.Length - 2); byte[] check = Checksum(false, keyData, keyData.Length - 2); keyData[keyData.Length - 2] = check[0]; keyData[keyData.Length - 1] = check[1]; } else { keyData = rawKeyData; } } else { try { if (pubKeyPacket.Version >= 4) { keyData = EncryptKeyData(rawKeyData, newEncAlgorithm, newPassPhrase, rand, out s2k, out iv); } else { // TODO v3 RSA key encryption throw Platform.CreateNotImplementedException("v3 RSA"); } } catch (PgpException e) { throw e; } catch (Exception e) { throw new PgpException("Exception encrypting key", e); } } SecretKeyPacket secret; if (key.secret is SecretSubkeyPacket) { secret = new SecretSubkeyPacket(pubKeyPacket, newEncAlgorithm, s2kUsage, s2k, iv, keyData); } else { secret = new SecretKeyPacket(pubKeyPacket, newEncAlgorithm, s2kUsage, s2k, iv, keyData); } return(new PgpSecretKey(secret, key.pub)); }
/// <summary> /// Return a copy of the passed in secret key, encrypted using a new password /// and the passed in algorithm. /// </summary> /// <param name="key">The PgpSecretKey to be copied.</param> /// <param name="oldPassPhrase">The current password for the key.</param> /// <param name="newPassPhrase">The new password for the key.</param> /// <param name="newEncAlgorithm">The algorithm to be used for the encryption.</param> /// <param name="rand">Source of randomness.</param> public static PgpSecretKey CopyWithNewPassword( PgpSecretKey key, char[] oldPassPhrase, char[] newPassPhrase, SymmetricKeyAlgorithmTag newEncAlgorithm, SecureRandom rand) { byte[] rawKeyData = key.ExtractKeyData(oldPassPhrase); int s2kUsage = key.secret.S2kUsage; byte[] iv = null; S2k s2k = null; byte[] keyData; if (newEncAlgorithm == SymmetricKeyAlgorithmTag.Null) { s2kUsage = SecretKeyPacket.UsageNone; if (key.secret.S2kUsage == SecretKeyPacket.UsageSha1) // SHA-1 hash, need to rewrite Checksum { keyData = new byte[rawKeyData.Length - 18]; Array.Copy(rawKeyData, 0, keyData, 0, keyData.Length - 2); byte[] check = Checksum(false, keyData, keyData.Length - 2); keyData[keyData.Length - 2] = check[0]; keyData[keyData.Length - 1] = check[1]; } else { keyData = rawKeyData; } } else { try { keyData = EncryptKeyData(rawKeyData, newEncAlgorithm, newPassPhrase, rand, out s2k, out iv); } catch (PgpException e) { throw e; } catch (Exception e) { throw new PgpException("Exception encrypting key", e); } } SecretKeyPacket secret; if (key.secret is SecretSubkeyPacket) { secret = new SecretSubkeyPacket(key.secret.PublicKeyPacket, newEncAlgorithm, s2kUsage, s2k, iv, keyData); } else { secret = new SecretKeyPacket(key.secret.PublicKeyPacket, newEncAlgorithm, s2kUsage, s2k, iv, keyData); } return(new PgpSecretKey(secret, key.pub)); }
/// <summary> /// Return a copy of the passed in secret key, encrypted using a new password /// and the passed in algorithm. /// </summary> /// <param name="key">The PgpSecretKey to be copied.</param> /// <param name="oldPassPhrase">The current password for the key.</param> /// <param name="newPassPhrase">The new password for the key.</param> /// <param name="newEncAlgorithm">The algorithm to be used for the encryption.</param> /// <param name="rand">Source of randomness.</param> public static PgpSecretKey CopyWithNewPassword( PgpSecretKey key, char[] oldPassPhrase, char[] newPassPhrase, SymmetricKeyAlgorithmTag newEncAlgorithm, SecureRandom rand) { byte[] rawKeyData = key.ExtractKeyData(oldPassPhrase); int s2kUsage = key.secret.S2kUsage; byte[] iv = null; S2k s2k = null; byte[] keyData; if (newEncAlgorithm == SymmetricKeyAlgorithmTag.Null) { s2kUsage = SecretKeyPacket.UsageNone; if (key.secret.S2kUsage == SecretKeyPacket.UsageSha1) // SHA-1 hash, need to rewrite Checksum { keyData = new byte[rawKeyData.Length - 18]; Array.Copy(rawKeyData, 0, keyData, 0, keyData.Length - 2); byte[] check = Checksum(false, keyData, keyData.Length - 2); keyData[keyData.Length - 2] = check[0]; keyData[keyData.Length - 1] = check[1]; } else { keyData = rawKeyData; } } else { try { keyData = EncryptKeyData(rawKeyData, newEncAlgorithm, newPassPhrase, rand, out s2k, out iv); } catch (PgpException e) { throw e; } catch (Exception e) { throw new PgpException("Exception encrypting key", e); } } SecretKeyPacket secret; if (key.secret is SecretSubkeyPacket) { secret = new SecretSubkeyPacket(key.secret.PublicKeyPacket, newEncAlgorithm, s2kUsage, s2k, iv, keyData); } else { secret = new SecretKeyPacket(key.secret.PublicKeyPacket, newEncAlgorithm, s2kUsage, s2k, iv, keyData); } return new PgpSecretKey(secret, key.pub); }
/// <summary> /// Return a copy of the passed in secret key, encrypted using a new password /// and the passed in algorithm. /// </summary> /// <param name="key">The PgpSecretKey to be copied.</param> /// <param name="oldPassPhrase">The current password for the key.</param> /// <param name="newPassPhrase">The new password for the key.</param> /// <param name="newEncAlgorithm">The algorithm to be used for the encryption.</param> /// <param name="rand">Source of randomness.</param> public static PgpSecretKey CopyWithNewPassword( PgpSecretKey key, char[] oldPassPhrase, char[] newPassPhrase, SymmetricKeyAlgorithmTag newEncAlgorithm, SecureRandom rand) { byte[] rawKeyData = key.ExtractKeyData(oldPassPhrase); int s2kUsage = key.secret.S2kUsage; byte[] iv = null; S2k s2k = null; byte[] keyData; if (newEncAlgorithm == SymmetricKeyAlgorithmTag.Null) { s2kUsage = SecretKeyPacket.UsageNone; if (key.secret.S2kUsage == SecretKeyPacket.UsageSha1) // SHA-1 hash, need to rewrite Checksum { keyData = new byte[rawKeyData.Length - 18]; Array.Copy(rawKeyData, 0, keyData, 0, keyData.Length - 2); byte[] check = Checksum(false, keyData, keyData.Length - 2); keyData[keyData.Length - 2] = check[0]; keyData[keyData.Length - 1] = check[1]; } else { keyData = rawKeyData; } } else { IBufferedCipher c; try { string cName = PgpUtilities.GetSymmetricCipherName(newEncAlgorithm); c = CipherUtilities.GetCipher(cName + "/CFB/NoPadding"); } catch (Exception e) { throw new PgpException("Exception creating cipher", e); } iv = new byte[8]; rand.NextBytes(iv); s2k = new S2k(HashAlgorithmTag.Sha1, iv, 0x60); try { KeyParameter sKey = PgpUtilities.MakeKeyFromPassPhrase(newEncAlgorithm, s2k, newPassPhrase); iv = new byte[c.GetBlockSize()]; rand.NextBytes(iv); c.Init(true, new ParametersWithIV(sKey, iv)); keyData = c.DoFinal(rawKeyData); } catch (PgpException e) { throw e; } catch (Exception e) { throw new PgpException("Exception encrypting key", e); } } SecretKeyPacket secret; if (key.secret is SecretSubkeyPacket) { secret = new SecretSubkeyPacket(key.secret.PublicKeyPacket, newEncAlgorithm, s2kUsage, s2k, iv, keyData); } else { secret = new SecretKeyPacket(key.secret.PublicKeyPacket, newEncAlgorithm, s2kUsage, s2k, iv, keyData); } if (key.subSigs == null) { return new PgpSecretKey(secret, key.trust, key.keySigs, key.ids, key.idTrusts, key.idSigs, key.pub); } return new PgpSecretKey(secret, key.trust, key.subSigs, key.pub); }
/// <summary> /// Return a copy of the passed in secret key, encrypted using a new password /// and the passed in algorithm. /// </summary> /// <param name="key">The PgpSecretKey to be copied.</param> /// <param name="oldPassPhrase">The current password for the key.</param> /// <param name="newPassPhrase">The new password for the key.</param> /// <param name="newEncAlgorithm">The algorithm to be used for the encryption.</param> /// <param name="rand">Source of randomness.</param> public static PgpSecretKey CopyWithNewPassword( PgpSecretKey key, char[] oldPassPhrase, char[] newPassPhrase, SymmetricKeyAlgorithmTag newEncAlgorithm, SecureRandom rand) { byte[] rawKeyData = key.ExtractKeyData(oldPassPhrase); int s2kUsage = key.secret.S2kUsage; byte[] iv = null; S2k s2k = null; byte[] keyData = null; if (newEncAlgorithm == SymmetricKeyAlgorithmTag.Null) { s2kUsage = SecretKeyPacket.UsageNone; if (key.secret.S2kUsage == SecretKeyPacket.UsageSha1) // SHA-1 hash, need to rewrite Checksum { keyData = new byte[rawKeyData.Length - 18]; Array.Copy(rawKeyData, 0, keyData, 0, keyData.Length - 2); byte[] check = Checksum(false, keyData, keyData.Length - 2); keyData[keyData.Length - 2] = check[0]; keyData[keyData.Length - 1] = check[1]; } else { keyData = rawKeyData; } } else { IBufferedCipher c; try { string cName = PgpUtilities.GetSymmetricCipherName(newEncAlgorithm); c = CipherUtilities.GetCipher(cName + "/CFB/NoPadding"); } catch (Exception e) { throw new PgpException("Exception creating cipher", e); } iv = new byte[8]; rand.NextBytes(iv); s2k = new S2k(HashAlgorithmTag.Sha1, iv, 0x60); try { KeyParameter sKey = PgpUtilities.MakeKeyFromPassPhrase(newEncAlgorithm, s2k, newPassPhrase); iv = new byte[c.GetBlockSize()]; rand.NextBytes(iv); c.Init(true, new ParametersWithIV(sKey, iv)); keyData = c.DoFinal(rawKeyData); } catch (PgpException e) { throw e; } catch (Exception e) { throw new PgpException("Exception encrypting key", e); } } SecretKeyPacket secret; if (key.secret is SecretSubkeyPacket) { secret = new SecretSubkeyPacket(key.secret.PublicKeyPacket, newEncAlgorithm, s2kUsage, s2k, iv, keyData); } else { secret = new SecretKeyPacket(key.secret.PublicKeyPacket, newEncAlgorithm, s2kUsage, s2k, iv, keyData); } if (key.subSigs == null) { return(new PgpSecretKey(secret, key.trust, key.keySigs, key.ids, key.idTrusts, key.idSigs, key.pub)); } return(new PgpSecretKey(secret, key.trust, key.subSigs, key.pub)); }