在Node.js中加密文本并从iOS应用程序解密

const crypto = require('crypto');

function encryptText(text, key, iv) {
  const cipher = crypto.createCipheriv('aes-256-cbc', key, iv);
  let encrypted = cipher.update(text, 'utf8', 'hex');
  encrypted += cipher.final('hex');
  return encrypted;
}

const plaintext = 'Hello, World!';
const key = crypto.randomBytes(32); // 生成一个32字节的随机密钥
const iv = crypto.randomBytes(16); // 生成一个16字节的随机IV

const encryptedText = encryptText(plaintext, key, iv);
console.log('Encrypted Text:', encryptedText);

import CommonCrypto

func decryptText(encryptedText: String, key: Data, iv: Data) -> String? {
    let encryptedData = Data(hexString: encryptedText)
    let bufferSize = encryptedData.count + kCCBlockSizeAES128
    var decryptedData = Data(count: bufferSize)

    let decryptionStatus = key.withUnsafeBytes { keyBytes in
        iv.withUnsafeBytes { ivBytes in
            encryptedData.withUnsafeBytes { encryptedBytes in
                decryptedData.withUnsafeMutableBytes { decryptedBytes in
                    CCCrypt(CCOperation(kCCDecrypt),
                            CCAlgorithm(kCCAlgorithmAES),
                            CCOptions(kCCOptionPKCS7Padding),
                            keyBytes.baseAddress, key.count,
                            ivBytes.baseAddress,
                            encryptedBytes.baseAddress, encryptedData.count,
                            decryptedBytes.baseAddress, bufferSize,
                            nil)
                }
            }
        }
    }

    if decryptionStatus == kCCSuccess {
        return String(data: decryptedData, encoding: .utf8)
    } else {
        return nil
    }
}

let encryptedText = "..."
let key = Data(hexString: "...")
let iv = Data(hexString: "...")

if let decryptedText = decryptText(encryptedText: encryptedText, key: key, iv: iv) {
    print("Decrypted Text:", decryptedText)
} else {
    print("Decryption failed.")
}