对称加密
React Native 端
Crypto-js
参考文档
安装
npm install --save crypto-js
使用
import CryptoJS from "crypto-js" const iv = CryptoJS.enc.Utf8.parse("xxxxxxxxxxxxxxxx").toString(CryptoJS.enc.Hex) const key = 'xxxx' let aes_option = { mode: CryptoJS.mode.ECB, padding: CryptoJS.pad.Pkcs7 }; const CryptByCryptoJS = { //** CBC加密 ** //params: 注意参数key为WordArray对象 //return: 密码对象 或者 密码对象Base64字符串 _aesEncryptWithMode(message) { var ciphertext = CryptoJS.AES.encrypt(message, key, { iv: CryptoJS.enc.Hex.parse(iv), mode: CryptoJS.mode.CBC, padding:CryptoJS.pad.Pkcs7 }); return ciphertext;//密码对象(Obejct类型，非WordArray类型)，Base64编码。 return ciphertext.toString();//密码对象的Base64字符串 }, //** 解密CBC ** //params: 注意参数ciphertext 必须为 Base64编码的对象或者字符串。 _aesDecryptWithMode(ciphertext){ var decrypted = CryptoJS.AES.decrypt(ciphertext,key,{ iv: CryptoJS.enc.Hex.parse(iv), mode: CryptoJS.mode.CBC, padding:CryptoJS.pad.Pkcs7 }); return decrypted.toString(CryptoJS.enc.Utf8);//WordArray对象转utf8字符串 }, /** * 普通电子加密 * * @param {any} 需要加密的字符串 * @returns 加密后的字符串 */ _aesEncryptECB (message){ return CryptoJS.AES.encrypt(message,key); }, /** * 解密 * * @param {any} 需要解密的字符串 * @returns 解密后的字符串 */ _aesDecryptECB (message){ return CryptoJS.AES.decrypt(message,key).toString(CryptoJS.enc.Utf8); }, _encryptBase64(message){ var wordArray = CryptoJS.enc.Utf8.parse(message); var base64 = CryptoJS.enc.Base64.stringify(wordArray); return base64; }, _decryptBase64(message){ var parsedWordArray = CryptoJS.enc.Base64.parse(message); var parsedStr = parsedWordArray.toString(CryptoJS.enc.Utf8); return parsedStr; },} CSharp
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Security.Cryptography;
Java
- Create a cipher instance:
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); - Generate key:
SecretKeyFactory factory = SecretKeyFactory.getInstance("1234567887654321"); KeySpec spec = new PBEKeySpec(passphrase.toCharArray(), hex(salt), iterationCount, keySize); SecretKey key = new SecretKeySpec(factory.generateSecret(spec).getEncoded(), "AES"); - Encrypt:
cipher.init(Cipher.ENCRYPT_MODE, key, new IvParameterSpec(hex(iv))); byte[] encrypted = cipher.doFinal(bytes);
- Decrypt:
cipher.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec(hex(iv))); byte[] decrypted = cipher.doFinal(bytes);
E.G.
key与iv要为16位,得到16的字符数组按照16进制编码转化为字符串
import javax.crypto.Cipher; import javax.crypto.spec.SecretKeySpec; import org.apache.commons.codec.binary.Base64; import javax.crypto.SecretKey; import javax.crypto.spec.IvParameterSpec; import java.util.Arrays; public static String encrypt(String content, String key) throws Exception { try { Key keySpec = new SecretKeySpec(key.getBytes(), "AES"); //两个参数，第一个为私钥字节数组， 第二个为加密方式 AES或者DES String iv = "1234567890123456";//初始化向量参数，AES 为16bytes. DES 为8bytes. IvParameterSpec ivSpec = new IvParameterSpec(iv.getBytes()); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); cipher.init(Cipher.ENCRYPT_MODE, keySpec,ivSpec); //Cipher cipher = AesUtil.generateCipher(Cipher.ENCRYPT_MODE,"1234567890123456".getBytes(),"1234567890123456".getBytes()); byte[] byteResult = cipher.doFinal(content.getBytes()); StringBuffer sb = new StringBuffer(); for (int i = 0; i < byteResult.length; i++) { String hex = Integer.toHexString(byteResult[i] & 0xFF); if (hex.length() == 1) { hex = '0' + hex; } sb.append(hex.toUpperCase()); } return sb.toString(); } catch (Exception e) { e.printStackTrace(); } return null; } 非对称加密
生成公钥和私钥（OpenSSL）
# 可以在终端输入 openssl 进入openssl 控制台，去掉下列命令钱的 openssl，再执行下面命令 #生成私钥 openssl genrsa -out rsa_private_key.pem 2048 #把RSA私钥转换成PKCS8格式 openssl pkcs8 -topk8 -inform PEM -in rsa_private_key.pem -outform PEM -nocrypt -out rsa_private_key_pkcs8.pem #生成公钥 openssl rsa -in rsa_private_key.pem -pubout -out rsa_public_key.pem
react-native-rsa-native
React Native
参考文档
安装
$ yarn add react-native-rsa-native or: $ npm install react-native-rsa-native --save Mostly automatic installation: $ react-native link react-native-rsa-native
IOS
In your React Native Xcode project, right click on your project and go 'Add Files to ...', then navigate to /node_modules/react-native-rsa-native/ios and select the RNRSA.xcodeproj file. Then in the build settings for your target under 'Link Binary With Libraries', add libRNRSA.a.
使用
import {RSA, RSAKeychain} from 'react-native-rsa-native'; async encrypt(str){ var result = await RSA.encrypt(str, PublicString) return result } async decrypt(encryptedMessage){ let result = await RSA.decrypt(encryptedMessage, PrivateString) return result }