diff --git a/src/Core/Abstractions/ICryptoService.cs b/src/Core/Abstractions/ICryptoService.cs
new file mode 100644
index 000000000..6df2cc9f2
--- /dev/null
+++ b/src/Core/Abstractions/ICryptoService.cs
@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Bit.Core.Enums;
+using Bit.Core.Models.Domain;
+using Bit.Core.Models.Response;
+
+namespace Bit.Core.Abstractions
+{
+    public interface ICryptoService
+    {
+        Task ClearEncKeyAsync(bool memoryOnly = false);
+        Task ClearKeyAsync();
+        Task ClearKeyHashAsync();
+        Task ClearKeyPairAsync(bool memoryOnly = false);
+        Task ClearKeysAsync();
+        Task ClearOrgKeysAsync(bool memoryOnly = false);
+        Task ClearPinProtectedKeyAsync();
+        Task<byte[]> DecryptFromBytesAsync(byte[] encBytes, SymmetricCryptoKey key);
+        Task<byte[]> DecryptToBytesAsync(CipherString cipherString, SymmetricCryptoKey key = null);
+        Task<string> DecryptToUtf8Async(CipherString cipherString, SymmetricCryptoKey key = null);
+        Task<CipherString> EncryptAsync(byte[] plainValue, SymmetricCryptoKey key = null);
+        Task<CipherString> EncryptAsync(string plainValue, SymmetricCryptoKey key = null);
+        Task<byte[]> EncryptToBytesAsync(byte[] plainValue, SymmetricCryptoKey key = null);
+        Task<SymmetricCryptoKey> GetEncKeyAsync();
+        Task<List<string>> GetFingerprintAsync(string userId, byte[] publicKey = null);
+        Task<SymmetricCryptoKey> GetKeyAsync();
+        Task<string> GetKeyHashAsync();
+        Task<SymmetricCryptoKey> GetOrgKeyAsync(string orgId);
+        Task<Dictionary<string, SymmetricCryptoKey>> GetOrgKeysAsync();
+        Task<byte[]> GetPrivateKeyAsync();
+        Task<byte[]> GetPublicKeyAsync();
+        Task<bool> HasEncKeyAsync();
+        Task<string> HashPasswordAsync(string password, SymmetricCryptoKey key);
+        Task<bool> HasKeyAsync();
+        Task<Tuple<SymmetricCryptoKey, CipherString>> MakeEncKeyAsync(SymmetricCryptoKey key);
+        Task<SymmetricCryptoKey> MakeKeyAsync(string password, string salt, KdfType? kdf, int? kdfIterations);
+        Task<SymmetricCryptoKey> MakeKeyFromPinAsync(string pin, string salt, KdfType kdf, int kdfIterations);
+        Task<Tuple<string, CipherString>> MakeKeyPairAsync(SymmetricCryptoKey key = null);
+        Task<SymmetricCryptoKey> MakePinKeyAysnc(string pin, string salt, KdfType kdf, int kdfIterations);
+        Task<Tuple<CipherString, SymmetricCryptoKey>> MakeShareKeyAsync();
+        Task<int> RandomNumberAsync(int min, int max);
+        Task<Tuple<SymmetricCryptoKey, CipherString>> RemakeEncKeyAsync(SymmetricCryptoKey key);
+        Task<CipherString> RsaEncryptAsync(byte[] data, byte[] publicKey = null);
+        Task SetEncKeyAsync(string encKey);
+        Task SetEncPrivateKeyAsync(string encPrivateKey);
+        Task SetKeyAsync(SymmetricCryptoKey key);
+        Task SetKeyHashAsync(string keyHash);
+        Task SetOrgKeysAsync(IEnumerable<ProfileOrganizationResponse> orgs);
+        Task ToggleKeyAsync();
+    }
+}
\ No newline at end of file
diff --git a/src/Core/Services/CryptoService.cs b/src/Core/Services/CryptoService.cs
index 9b8a8f2af..f4b7dc08b 100644
--- a/src/Core/Services/CryptoService.cs
+++ b/src/Core/Services/CryptoService.cs
@@ -10,7 +10,7 @@ using System.Threading.Tasks;
 
 namespace Bit.Core.Services
 {
-    public class CryptoService
+    public class CryptoService : ICryptoService
     {
         private readonly IStorageService _storageService;
         private readonly IStorageService _secureStorageService;