fix cfb test

CryptoSwiftTests/AESTests.swift

@@ -90,9 +90,9 @@ final class AESTests: XCTestCase {
         let key: [UInt8] = [56, 118, 37, 51, 125, 78, 103, 107, 119, 40, 74, 88, 117, 112, 123, 75, 122, 89, 72, 36, 46, 91, 106, 60, 54, 110, 34, 126, 69, 126, 61, 87]
         let iv: [UInt8] = [69, 122, 99, 87, 83, 112, 110, 65, 54, 109, 107, 89, 73, 122, 74, 49]
         let plaintext: [UInt8] = [123, 10, 32, 32, 34, 67, 111, 110, 102, 105, 114, 109, 34, 32, 58, 32, 34, 116, 101, 115, 116, 105, 110, 103, 34, 44, 10, 32, 32, 34, 70, 105, 114, 115, 116, 78, 97, 109, 101, 34, 32, 58, 32, 34, 84, 101, 115, 116, 34, 44, 10, 32, 32, 34, 69, 109, 97, 105, 108, 34, 32, 58, 32, 34, 116, 101, 115, 116, 64, 116, 101, 115, 116, 46, 99, 111, 109, 34, 44, 10, 32, 32, 34, 76, 97, 115, 116, 78, 97, 109, 101, 34, 32, 58, 32, 34, 84, 101, 115, 116, 101, 114, 34, 44, 10, 32, 32, 34, 80, 97, 115, 115, 119, 111, 114, 100, 34, 32, 58, 32, 34, 116, 101, 115, 116, 105, 110, 103, 34, 44, 10, 32, 32, 34, 85, 115, 101, 114, 110, 97, 109, 101, 34, 32, 58, 32, 34, 84, 101, 115, 116, 34, 10, 125]
-        let encryptedBytes: [UInt8] = try! Cipher.AES(key: key, iv: iv, blockMode: .CFB).encrypt(plaintext)
-        let decryptedBytes: [UInt8] = try! Cipher.AES(key: key, iv: iv, blockMode: .CFB).decrypt(encryptedBytes)
-        XCTAssert(decryptedBytes == plaintext, "decryption failed")
+        let encrypted: [UInt8] = try! AES(key: key, iv: iv, blockMode: .CFB).encrypt(plaintext)
+        let decrypted: [UInt8] = try! AES(key: key, iv: iv, blockMode: .CFB).decrypt(encryptedBytes)
+        XCTAssert(decrypted == plaintext, "decryption failed")
     }
     
     func testAES_encrypt_ctr() {