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using Bit.Core.Enums;
namespace Bit.Core.Models.Domain
{
public class SymmetricCryptoKey
public SymmetricCryptoKey(byte[] key, EncryptionType? encType = null)
if (key == null)
throw new ArgumentKeyNullException(nameof(key));
}
if (encType == null)
if (key.Length == 32)
encType = EncryptionType.AesCbc256_B64;
else if (key.Length == 64)
encType = EncryptionType.AesCbc256_HmacSha256_B64;
else
throw new InvalidKeyOperationException("Unable to determine encType.");
Key = key;
EncType = encType.Value;
if (EncType == EncryptionType.AesCbc256_B64 && Key.Length == 32)
EncKey = Key;
MacKey = null;
else if (EncType == EncryptionType.AesCbc128_HmacSha256_B64 && Key.Length == 32)
EncKey = new ArraySegment<byte>(Key, 0, 16).ToArray();
MacKey = new ArraySegment<byte>(Key, 16, 16).ToArray();
else if (EncType == EncryptionType.AesCbc256_HmacSha256_B64 && Key.Length == 64)
EncKey = new ArraySegment<byte>(Key, 0, 32).ToArray();
MacKey = new ArraySegment<byte>(Key, 32, 32).ToArray();
throw new InvalidKeyOperationException("Unsupported encType/key length.");
if (Key != null)
KeyB64 = Convert.ToBase64String(Key);
if (EncKey != null)
EncKeyB64 = Convert.ToBase64String(EncKey);
if (MacKey != null)
MacKeyB64 = Convert.ToBase64String(MacKey);
public byte[] Key { get; set; }
public byte[] EncKey { get; set; }
public byte[] MacKey { get; set; }
public EncryptionType EncType { get; set; }
public string KeyB64 { get; set; }
public string EncKeyB64 { get; set; }
public string MacKeyB64 { get; set; }
public class ArgumentKeyNullException : ArgumentNullException
public ArgumentKeyNullException(string paramName) : base(paramName)
public ArgumentKeyNullException(string message, Exception innerException) : base(message, innerException)
public ArgumentKeyNullException(string paramName, string message) : base(paramName, message)
public class InvalidKeyOperationException : InvalidOperationException
public InvalidKeyOperationException(string message) : base(message)
public InvalidKeyOperationException(string message, Exception innerException) : base(message, innerException)
public class UserKey : SymmetricCryptoKey
public UserKey(byte[] key, EncryptionType? encType = null)
: base(key, encType)
{ }
public class MasterKey : SymmetricCryptoKey
public MasterKey(byte[] key, EncryptionType? encType = null)
public class PinKey : SymmetricCryptoKey
public PinKey(byte[] key, EncryptionType? encType = null)
public class OrgKey : SymmetricCryptoKey
public OrgKey(byte[] key, EncryptionType? encType = null)
public class CipherKey : SymmetricCryptoKey
public CipherKey(byte[] key, EncryptionType? encType = null)