diff --git a/pass.xcodeproj/project.pbxproj b/pass.xcodeproj/project.pbxproj
index 826a893..960b76c 100644
--- a/pass.xcodeproj/project.pbxproj
+++ b/pass.xcodeproj/project.pbxproj
@@ -51,6 +51,7 @@
 		30A1D2A821B2D53200E2D1F7 /* PasswordChange.swift in Sources */ = {isa = PBXBuildFile; fileRef = 30A1D2A721B2D53200E2D1F7 /* PasswordChange.swift */; };
 		30A1D2AA21B32A0100E2D1F7 /* OtpTypeTest.swift in Sources */ = {isa = PBXBuildFile; fileRef = 30A1D2A921B32A0100E2D1F7 /* OtpTypeTest.swift */; };
 		30A1D2AC21B32C2A00E2D1F7 /* TokenBuilderTest.swift in Sources */ = {isa = PBXBuildFile; fileRef = 30A1D2AB21B32C2A00E2D1F7 /* TokenBuilderTest.swift */; };
+		30A86F95230F237000F821A4 /* CryptoFrameworkTest.swift in Sources */ = {isa = PBXBuildFile; fileRef = 30A86F94230F237000F821A4 /* CryptoFrameworkTest.swift */; };
 		30B04860209A5141001013CA /* PasswordTest.swift in Sources */ = {isa = PBXBuildFile; fileRef = 30B0485F209A5141001013CA /* PasswordTest.swift */; };
 		30BAC8C622E3BAAF00438475 /* TestBase.swift in Sources */ = {isa = PBXBuildFile; fileRef = 30BAC8C422E3BAAF00438475 /* TestBase.swift */; };
 		30BAC8C722E3BAAF00438475 /* TestPGPKeys.swift in Sources */ = {isa = PBXBuildFile; fileRef = 30BAC8C522E3BAAF00438475 /* TestPGPKeys.swift */; };
@@ -262,6 +263,7 @@
 		30A1D2A721B2D53200E2D1F7 /* PasswordChange.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PasswordChange.swift; sourceTree = "<group>"; };
 		30A1D2A921B32A0100E2D1F7 /* OtpTypeTest.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = OtpTypeTest.swift; sourceTree = "<group>"; };
 		30A1D2AB21B32C2A00E2D1F7 /* TokenBuilderTest.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TokenBuilderTest.swift; sourceTree = "<group>"; };
+		30A86F94230F237000F821A4 /* CryptoFrameworkTest.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CryptoFrameworkTest.swift; sourceTree = "<group>"; };
 		30B0485F209A5141001013CA /* PasswordTest.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = PasswordTest.swift; sourceTree = "<group>"; };
 		30BAC8C422E3BAAF00438475 /* TestBase.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TestBase.swift; sourceTree = "<group>"; };
 		30BAC8C522E3BAAF00438475 /* TestPGPKeys.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TestPGPKeys.swift; sourceTree = "<group>"; };
@@ -463,6 +465,14 @@
 			path = Extensions;
 			sourceTree = "<group>";
 		};
+		30A86F93230F235800F821A4 /* Crypto */ = {
+			isa = PBXGroup;
+			children = (
+				30A86F94230F237000F821A4 /* CryptoFrameworkTest.swift */,
+			);
+			path = Crypto;
+			sourceTree = "<group>";
+		};
 		30B6AABA21F49095006B352D /* Extensions */ = {
 			isa = PBXGroup;
 			children = (
@@ -585,6 +595,7 @@
 		A26075861EEC6F34005DB03E /* passKitTests */ = {
 			isa = PBXGroup;
 			children = (
+				30A86F93230F235800F821A4 /* Crypto */,
 				30BAC8C322E3BA4300438475 /* Testbase */,
 				30697C5521F63F870064FCAC /* Extensions */,
 				301F6464216164670071A4CE /* Helpers */,
@@ -1303,6 +1314,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				30A86F95230F237000F821A4 /* CryptoFrameworkTest.swift in Sources */,
 				30A1D2AC21B32C2A00E2D1F7 /* TokenBuilderTest.swift in Sources */,
 				301F646D216166AA0071A4CE /* AdditionFieldTest.swift in Sources */,
 				30BAC8CB22E3BB6C00438475 /* DictBasedKeychain.swift in Sources */,
diff --git a/passKitTests/Crypto/CryptoFrameworkTest.swift b/passKitTests/Crypto/CryptoFrameworkTest.swift
new file mode 100644
index 0000000..3199958
--- /dev/null
+++ b/passKitTests/Crypto/CryptoFrameworkTest.swift
@@ -0,0 +1,60 @@
+//
+//  CryptoFrameworkTest.swift
+//  passKitTests
+//
+//  Created by Danny Moesch on 22.08.19.
+//  Copyright © 2019 Bob Sun. All rights reserved.
+//
+
+import XCTest
+
+@testable import passKit
+@testable import Crypto
+
+class CryptoFrameworkTest: XCTestCase {
+
+    typealias MessageConverter = (CryptoPGPMessage, NSErrorPointer) -> CryptoPGPMessage?
+
+    private let testText = "Hello World!"
+
+    func testArmoredEncryptDecrypt() throws {
+        let plainMessage = CryptoNewPlainMessageFromString(testText)
+        let messageConverter: MessageConverter = { encryptedMessage, error in
+            CryptoNewPGPMessageFromArmored(encryptedMessage.getArmored(error), error)
+        }
+
+        try testInternal(plainMessage: plainMessage, messageConverter: messageConverter)
+    }
+
+    func testDataBasedEncryptDecrypt() throws {
+        let plainMessage = CryptoNewPlainMessage(testText.data(using: .utf8)!.mutable as Data)
+        let messageConverter: MessageConverter = { encryptedMessage, _ in
+            CryptoNewPGPMessage(encryptedMessage.getBinary()!.mutable as Data)
+        }
+
+        try testInternal(plainMessage: plainMessage, messageConverter: messageConverter)
+    }
+
+    private func testInternal(plainMessage: CryptoPlainMessage?, messageConverter: MessageConverter) throws {
+        try [
+            RSA2048,
+            //RSA2048_SUB,
+            ED25519,
+            //ED25519_SUB,
+        ].forEach { keyTriple in
+            let pgp = CryptoGetGopenPGP()!
+            let publicKey = try pgp.buildKeyRingArmored(keyTriple.publicKey)
+            let privateKey = try pgp.buildKeyRingArmored(keyTriple.privateKey)
+            var error: NSError?
+
+            XCTAssert(publicKey.getFingerprint(&error).hasSuffix(keyTriple.fingerprint))
+            XCTAssertNil(error)
+
+            try privateKey.unlock(withPassphrase: keyTriple.passphrase)
+            let encryptedMessage = try publicKey.encrypt(plainMessage, privateKey: nil)
+            let decryptedData = try privateKey.decrypt(messageConverter(encryptedMessage, &error), verifyKey: nil, verifyTime: 0)
+            XCTAssertNil(error)
+            XCTAssertEqual(testText, decryptedData.getString())
+        }
+    }
+}
diff --git a/passKitTests/Testbase/TestPGPKeys.swift b/passKitTests/Testbase/TestPGPKeys.swift
index 13a0003..aa53c79 100644
--- a/passKitTests/Testbase/TestPGPKeys.swift
+++ b/passKitTests/Testbase/TestPGPKeys.swift
@@ -10,6 +10,38 @@ import XCTest
 
 @testable import passKit
 
+struct PGPKeyTestTriple {
+    let publicKey: String
+    let privateKey: String
+    let fingerprint: String
+
+    let passphrase = "passforios"
+}
+
+let RSA2048 = PGPKeyTestTriple(
+    publicKey: PGP_RSA2048_PUBLIC_KEY,
+    privateKey: PGP_RSA2048_PRIVATE_KEY,
+    fingerprint: "a1024dae"
+)
+
+let RSA2048_SUB = PGPKeyTestTriple(
+    publicKey: PGP_RSA2048_PUBLIC_KEY,
+    privateKey: PGP_RSA2048_PRIVATE_SUBKEY,
+    fingerprint: "a1024dae"
+)
+
+let ED25519 = PGPKeyTestTriple(
+    publicKey: PGP_ED25519_PUBLIC_KEY,
+    privateKey: PGP_ED25519_PRIVATE_KEY,
+    fingerprint: "e9444483"
+)
+
+let ED25519_SUB = PGPKeyTestTriple(
+    publicKey: PGP_ED25519_PUBLIC_KEY,
+    privateKey: PGP_ED25519_PRIVATE_SUBKEY,
+    fingerprint: "e9444483"
+)
+
 func requestPGPKeyPassphrase() -> String {
     return "passforios"
 }