update test case

enzevalos_iphoneTests/CryptoTests.swift

@@ -512,7 +512,7 @@ class CryptoTests: XCTestCase {
             XCTFail("Can not import key")
             return
         }
-        guard let signedData = signedMessage.data(using: .utf8) else {
+        guard let signedData = try? Armor.readArmored(signedMessage) else {
             XCTFail("No signed data")
             return
         }