java使用AES加密解密 AES-128-ECB加密
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http://www.cnblogs.com/chen-lhx/p/5817161.html
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import javax.crypto.Cipher; import javax.crypto.spec.SecretKeySpec; import org.apache.commons.codec.binary.Base64; /** * * @author Administrator * */ public class AES { // 加密 public static String Encrypt(String sSrc, String sKey) throws Exception { if (sKey == null) { System.out.print("Key为空null"); return null; } // 判断Key是否为16位 if (sKey.length() != 16) { System.out.print("Key长度不是16位"); return null; } byte[] raw = sKey.getBytes("utf-8"); SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES"); Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");//"算法/模式/补码方式" cipher.init(Cipher.ENCRYPT_MODE, skeySpec); byte[] encrypted = cipher.doFinal(sSrc.getBytes("utf-8")); return new Base64().encodeToString(encrypted);//此处使用BASE64做转码功能,同时能起到2次加密的作用。 } // 解密 public static String Decrypt(String sSrc, String sKey) throws Exception { try { // 判断Key是否正确 if (sKey == null) { System.out.print("Key为空null"); return null; } // 判断Key是否为16位 if (sKey.length() != 16) { System.out.print("Key长度不是16位"); return null; } byte[] raw = sKey.getBytes("utf-8"); SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES"); Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding"); cipher.init(Cipher.DECRYPT_MODE, skeySpec); byte[] encrypted1 = new Base64().decode(sSrc);//先用base64解密 try { byte[] original = cipher.doFinal(encrypted1); String originalString = new String(original,"utf-8"); return originalString; } catch (Exception e) { System.out.println(e.toString()); return null; } } catch (Exception ex) { System.out.println(ex.toString()); return null; } } public static void main(String[] args) throws Exception { /* * 此处使用AES-128-ECB加密模式,key需要为16位。 */ String cKey = "1234567890123456"; // 需要加密的字串 String cSrc = "www.gowhere.so"; System.out.println(cSrc); // 加密 String enString = AES.Encrypt(cSrc, cKey); System.out.println("加密后的字串是:" + enString); // 解密 String DeString = AES.Decrypt(enString, cKey); System.out.println("解密后的字串是:" + DeString); } } //源代码片段来自云代码http://yuncode.net
package cd.server.data; import javax.crypto.Cipher; import javax.crypto.spec.SecretKeySpec; import android.annotation.SuppressLint; import android.util.Base64; // http://blog.csdn.net/hbcui1984/article/details/5201247 // AES加密解密工具类 public class AES128 { private static final String UTF_8 = "UTF-8"; /** * 加密 * @param content 需要加密的内容 * @param password 加密密码 * @return */ @SuppressLint ("TrulyRandom") public static String encrypt(String key, String src) { try { if(key == null || key.length() <= 0 || src == null || src.length() <= 0) return null; SecretKeySpec skey = new SecretKeySpec(key.getBytes(), "AES"); Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding"); byte[] byteContent = src.getBytes(UTF_8); cipher.init(Cipher.ENCRYPT_MODE, skey);// 初始化 byte[] result = cipher.doFinal(byteContent); return byte2Base64(result); // 加密 } catch (Exception ext) { ext.printStackTrace(); } return null; } private static String byte2Base64(byte[] encode) { try { return Base64.encodeToString(encode, Base64.NO_WRAP); } catch (Exception ext) { ext.printStackTrace(); } return null; } }
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