Java Swift中的AES加密？

我在Swift工作

public static String encrypt1(String plaintext, String key, String IV) throws Exception {
   SecretKeySpec   secretKey = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
   Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
   cipher.init(Cipher.ENCRYPT_MODE, secretKey, new IvParameterSpec(IV.getBytes("UTF-8")));
   byte[] ciphertext = cipher.doFinal(plaintext.getBytes("UTF-8"));
   byte[] iv = cipher.getIV();
   String asd = Base64.encodeToString(ciphertext, Base64.NO_WRAP);
   return asd;
}

我找不到适用于iOS 13及以下版本的AES CBC PKCS5P加密。iOS 13有加密套件，这不是我需要的

我尝试的快速转换： //这里的操作是kCCEncrypt的默认值，即0

public func encrypt1(plainText : String, key: String, iv : String, operation : Int) -> String {
        let data = Data(plainText.utf8)
        let ivData = Data(iv.utf8)
        let keyData = Data(key.utf8)
        let cryptLength  = size_t(data.count + kCCBlockSizeAES128)
        var cryptData = Data(count:cryptLength)
    
        let keyLength = size_t(kCCKeySizeAES128)
        let options = CCOptions(kCCOptionPKCS7Padding)
        var numBytesEncrypted :size_t = 0
    
        let cryptStatus = cryptData.withUnsafeMutableBytes {cryptBytes in
            data.withUnsafeBytes {dataBytes in
                ivData.withUnsafeBytes {ivBytes in
                    keyData.withUnsafeBytes {keyBytes in
                        CCCrypt(CCOperation(operation), CCAlgorithm(kCCAlgorithmAES), options, keyBytes, keyLength, ivBytes, dataBytes, data.count,cryptBytes, cryptLength,&numBytesEncrypted)
                    }
                }
            }
        }
    
        if UInt32(cryptStatus) == UInt32(kCCSuccess) {
            cryptData.removeSubrange(numBytesEncrypted..<cryptData.count)
            
        } else {
            print("Error: \(cryptStatus)")
        }
        print("My Encrypted Value: \(String(decoding: cryptData, as: UTF8.self))")
        return String(decoding: cryptData, as: UTF8.self);
    }

public func encrypt1（明文：String，密钥：String，iv:String，操作：Int）->String{
让数据=数据（明文.utf8）
设ivData=数据（iv.utf8）
设keyData=Data（key.utf8）
让cryptLength=size\u t（data.count+kccblocksizeaaes128）
var cryptData=数据（计数：cryptLength）
let keyLength=大小（kCCKeySizeAES128）
let options=CCOptions（kCCOptionPKCS7Padding）
var numBytesEncrypted:size\u t=0
让cryptStatus=cryptData.WithUnsafemtableBytes{cryptBytes in
data.withUnsafeBytes中的{dataBytes
ivData.withUnsafeBytes{ivBytes in
keyData.withUnsafeBytes{keyBytes in
CCCrypt（CCOperation（操作）、ccalgorithmaes（kCCAlgorithmAES）、options、keyBytes、keydlength、ivBytes、dataBytes、data.count、cryptBytes、cryptLength和numbytes加密）
}
}
}
}
如果UInt32（加密状态）=UInt32（kCCSuccess）{
cryptData.removeSubrange（numBytesEncrypted.最终编码了解决方案：

import CommonCrypto
struct AES {

    // MARK: - Value
    // MARK: Private
    private let key: Data
    private let iv: Data


    // MARK: - Initialzier
    init?(key: String, iv: String) {
        guard key.count == kCCKeySizeAES128 || key.count == kCCKeySizeAES256, let keyData = key.data(using: .utf8) else {
            debugPrint("Error: Failed to set a key.")
            return nil
        }

        guard iv.count == kCCBlockSizeAES128, let ivData = iv.data(using: .utf8) else {
            debugPrint("Error: Failed to set an initial vector.")
            return nil
        }


        self.key = keyData
        self.iv  = ivData
    }


    // MARK: - Function
    // MARK: Public
    func encrypt(string: String) -> String {
        guard let cryptData =  crypt(data: string.data(using: .utf8), option: CCOperation(kCCEncrypt)) else { return "" }
        return cryptData.base64EncodedString()
    }

    func decrypt(data: Data?) -> String? {
        guard let decryptedData = crypt(data: data, option: CCOperation(kCCDecrypt)) else { return nil }
        return String(bytes: decryptedData, encoding: .utf8)
    }

    func crypt(data: Data?, option: CCOperation) -> Data? {
        guard let data = data else { return nil }

        let cryptLength = data.count + kCCBlockSizeAES128
        var cryptData   = Data(count: cryptLength)

        let keyLength = key.count
        let options   = CCOptions(kCCOptionPKCS7Padding)

        var bytesLength = Int(0)

        let status = cryptData.withUnsafeMutableBytes { cryptBytes in
            data.withUnsafeBytes { dataBytes in
                iv.withUnsafeBytes { ivBytes in
                    key.withUnsafeBytes { keyBytes in
                    CCCrypt(option, CCAlgorithm(kCCAlgorithmAES), options, keyBytes.baseAddress, keyLength, ivBytes.baseAddress, dataBytes.baseAddress, data.count, cryptBytes.baseAddress, cryptLength, &bytesLength)
                    }
                }
            }
        }

        guard UInt32(status) == UInt32(kCCSuccess) else {
            debugPrint("Error: Failed to crypt data. Status \(status)")
            return nil
        }

        cryptData.removeSubrange(bytesLength..<cryptData.count)
        return cryptData
    }
}

到目前为止，您尝试了什么？Stack Overflow是一个问答网站，不是免费的代码转换服务。如何将此代码改编为Swift 5？我有一个关于弃用的警告：“WithUnsafeutableBytes已弃用”，“withUnsafeBytes已弃用”
let encryptedPassword128 = aes128?.encrypt(string: response1)