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在Android的WebView中进行数据加密,通常涉及到以下几个方面:
网络请求加密:
数据存储加密:
Cipher类,对数据进行加密和解密。JavaScript桥接加密:
以下是一些具体的实现步骤:
确保所有网络请求都使用HTTPS协议。在AndroidManifest.xml中配置网络安全性配置:
<application
android:networkSecurityConfig="@xml/network_security_config">
...
</application>
在res/xml/network_security_config.xml中配置:
<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
<domain-config cleartextTrafficPermitted="false">
<domain includeSubdomains="true">yourdomain.com</domain>
</domain-config>
</network-security-config>
使用Android的Cipher类进行数据加密和解密:
import android.util.Base64;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
public class EncryptionUtil {
private static final String ALGORITHM = "AES";
private static final String KEY = "YourSecretKey123"; // 16字节密钥
public static String encrypt(String value) throws Exception {
SecretKeySpec secretKey = new SecretKeySpec(KEY.getBytes(), ALGORITHM);
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, secretKey);
byte[] encrypted = cipher.doFinal(value.getBytes());
return Base64.encodeToString(encrypted, Base64.DEFAULT);
}
public static String decrypt(String encryptedValue) throws Exception {
SecretKeySpec secretKey = new SecretKeySpec(KEY.getBytes(), ALGORITHM);
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, secretKey);
byte[] decodedValue = Base64.decode(encryptedValue, Base64.DEFAULT);
byte[] decrypted = cipher.doFinal(decodedValue);
return new String(decrypted);
}
}
在JavaScript中使用Web Crypto API进行数据加密:
async function encryptData(data) {
const encoder = new TextEncoder();
const dataBuffer = encoder.encode(data);
const key = await crypto.subtle.importKey(
'raw',
new TextEncoder().encode('YourSecretKey123'), // 16字节密钥
'AES-CBC',
false,
['encrypt']
);
const iv = crypto.getRandomValues(new Uint8Array(16));
const encryptedData = await crypto.subtle.encrypt(
{
name: 'AES-CBC',
iv: iv
},
key,
dataBuffer
);
return {
encryptedData: Array.from(new Uint8Array(encryptedData)),
iv: Array.from(iv)
};
}
async function decryptData(encryptedData, iv) {
const key = await crypto.subtle.importKey(
'raw',
new TextEncoder().encode('YourSecretKey123'), // 16字节密钥
'AES-CBC',
false,
['decrypt']
);
const decryptedData = await crypto.subtle.decrypt(
{
name: 'AES-CBC',
iv: new Uint8Array(iv)
},
key,
new Uint8Array(encryptedData)
);
return new TextDecoder().decode(decryptedData);
}
通过以上步骤,可以在Android的WebView中进行数据加密,确保数据的安全性。
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