swift - 如何解决“dataPaddingRequired”错误 CryptoSwift

Question

我有key = "somesomesomesome".md5()，长度为 32 字节，iv为空，尝试使用 CryptoSwift 解密加密字符串：

let aes = try AES(key: key.bytes, blockMode: CBC(iv: []), padding: .noPadding)
let result = try aes.decrypt(encrypted)
let decrypted = String(bytes: result, encoding: .utf8)

收到错误“dataPaddingRequired”。我做错了什么？