我的朋友给了我一个SecurityAES.java文件。我在电脑上使用得很好，但是当我在Android上使用它时，结果是不同的！我该怎么办？
我在android上使用代码：
String formVals = SecurityAES.encryptAES(con, token);
这是代码：
public class SecurityAES {
private final static String encoding = "UTF-8";
public static void main(String[] args) {
String str = encryptAES("18382360986%2Cqq200600","uu24sfsd8sdggs");
System.out.println(str);
String uriAPI = "http://xxxxxx.com/do/httpapi!apiUserInfo.shtml";
Map parameters=new HashMap();
parameters.put("token", "uu24sfsd8sdggs");
parameters.put("formVals", str);
System.out.println(post(uriAPI, parameters, true));
}
public static String post(String urlStr, Map parameters, boolean flag) {
try {
String content = "";
String result = "";
URL url = null;
URLConnection conn = null;
OutputStreamWriter writer = null;
StringBuffer params = new StringBuffer();
for (Iterator iter = parameters.entrySet().iterator(); iter.hasNext();) {
Entry element = (Entry) iter.next();
params.append(element.getKey().toString());
params.append("=");
params.append(element.getValue().toString());
params.append("&");
}
if (params.length() > 0) {
params = params.deleteCharAt(params.length() - 1);
}
try {
url = new URL(urlStr);
conn = url.openConnection();
conn.setDoOutput(true);
conn.setRequestProperty("Referer", "");
conn.setConnectTimeout(3000);// 设置连接主机超时（单位：毫秒）
conn.setReadTimeout(3000);// 设置从主机读取数据超时（单位：毫秒）
writer = new OutputStreamWriter(conn.getOutputStream());
writer.write(params.toString());
writer.flush();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (writer != null) {
writer.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
InputStreamReader reder = null;
BufferedReader breader = null;
try {
reder = new InputStreamReader(conn.getInputStream(), "utf-8");
breader = new BufferedReader(reder);
while ((content = breader.readLine()) != null) {
result += content;
}
} catch (Exception e) {
} finally {
try {
if (reder != null) {
reder.close();
}
if (breader != null) {
breader.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
if (result == null || result.equals("")) {
result = "|";
}
System.out.println(result);
return result;
} catch (Exception e) {
e.printStackTrace();
return "";
}
}
/**
*
* @param content
* @param password
* @return
*/
public static String encryptAES(String content, String password) {
byte[] encryptResult = encrypt(content, password);
String encryptResultStr = parseByte2HexStr(encryptResult);
encryptResultStr = ebotongEncrypto(encryptResultStr);
return encryptResultStr;
}
/**
*
* @param encryptResultStr
* @param password
* @return
*/
public static String decrypt(String encryptResultStr, String password) {
String decrpt = ebotongDecrypto(encryptResultStr);
byte[] decryptFrom = parseHexStr2Byte(decrpt);
byte[] decryptResult = decrypt(decryptFrom, password);
return new String(decryptResult);
}
/**
*/
public static String ebotongEncrypto(String str) {
BASE64Encoder base64encoder = new BASE64Encoder();
String result = str;
if (str != null && str.length() > 0) {
try {
byte[] encodeByte = str.getBytes(encoding);
result = base64encoder.encode(encodeByte);
} catch (Exception e) {
e.printStackTrace();
}
}
return result.replaceAll("\r\n", "").replaceAll("\r", "").replaceAll("\n", "");
}
/**
*/
public static String ebotongDecrypto(String str) {
BASE64Decoder base64decoder = new BASE64Decoder();
try {
byte[] encodeByte = base64decoder.decodeBuffer(str);
return new String(encodeByte);
} catch (IOException e) {
e.printStackTrace();
return str;
}
}
/**
*
* @return
*/
private static byte[] encrypt(String content, String password) {
try {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG" );
secureRandom.setSeed(password.getBytes());
kgen.init(128, secureRandom);
//kgen.init(128, new SecureRandom(password.getBytes()));
SecretKey secretKey = kgen.generateKey();
byte[] enCodeFormat = secretKey.getEncoded();
SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");
Cipher cipher = Cipher.getInstance("AES");//
byte[] byteContent = content.getBytes("utf-8");
cipher.init(Cipher.ENCRYPT_MODE, key);
byte[] result = cipher.doFinal(byteContent);
return result;
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (NoSuchPaddingException e) {
e.printStackTrace();
} catch (InvalidKeyException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (IllegalBlockSizeException e) {
e.printStackTrace();
} catch (BadPaddingException e) {
e.printStackTrace();
}
return null;
}
private static byte[] decrypt(byte[] content, String password) {
try {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG" );
secureRandom.setSeed(password.getBytes());
kgen.init(128, secureRandom);
//kgen.init(128, new SecureRandom(password.getBytes()));
SecretKey secretKey = kgen.generateKey();
byte[] enCodeFormat = secretKey.getEncoded();
SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");
Cipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.DECRYPT_MODE, key);
byte[] result = cipher.doFinal(content);
return result; //
} catch (NoSuchAlgorithmException e) {
} catch (NoSuchPaddingException e) {
} catch (InvalidKeyException e) {
} catch (IllegalBlockSizeException e) {
} catch (BadPaddingException e) {
}
return null;
}
public static String parseByte2HexStr(byte buf[]) {
StringBuffer sb = new StringBuffer();
for (int i = 0; i < buf.length; i++) {
String hex = Integer.toHexString(buf[i] & 0xFF);
if (hex.length() == 1) {
hex = '0' + hex;
}
sb.append(hex.toUpperCase());
}
return sb.toString();
}
public static byte[] parseHexStr2Byte(String hexStr) {
if (hexStr.length() < 1)
return null;
byte[] result = new byte[hexStr.length()/2];
for (int i = 0;i< hexStr.length()/2; i++) {
int high = Integer.parseInt(hexStr.substring(i*2, i*2+1), 16);
int low = Integer.parseInt(hexStr.substring(i*2+1, i*2+2), 16);
result[i] = (byte) (high * 16 + low);
}
return result;
}
}
答案 0 :(得分：0)
除了可怕的代码之外，可能是这条线杀死了你：
SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG" );
随机数生成器不是密钥派生函数（KDF）。如果要使用密钥派生方法，请使用例如PBKDF2。
假设（未定义的）SHA1PRNG算法在实例化后立即播种时返回相同的值。它只针对Oracle提供的实现执行此操作，并且该功能仅应用于调试应用程序，因为即使在Oracle提供程序中也没有很好地定义算法。
换句话说，除非您想要随机值，否则不要使用SecureRandom。