本文例程下载:
https://files.cnblogs.com/files/heyang78/ufo_aes_encode_decode_210927.rar
代码:
package ufo; import java.security.SecureRandom; import javax.crypto.Cipher; import javax.crypto.KeyGenerator; import javax.crypto.SecretKey; import javax.crypto.spec.SecretKeySpec; import org.apache.commons.codec.binary.Base64; public class AES_Test { public static void main(String... args) { String original="Let’s Build a Giant Airship 青海长云暗雪山"; System.out.println("原文= "+original); try { // 生产密钥 KeyGenerator kgen = KeyGenerator.getInstance("AES"); kgen.init(256, new SecureRandom("RND SEED".getBytes())); SecretKey secretKey = kgen.generateKey(); byte[] enCodeFormat = secretKey.getEncoded(); SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");// 密钥,下面加密解密都要用到 System.out.println("密钥= "+Base64.encodeBase64String(key.getEncoded())); // 加密 Cipher cipherEncode = Cipher.getInstance("AES"); byte[] byteContent = original.getBytes(); cipherEncode.init(Cipher.ENCRYPT_MODE, key); byte[] EncodeResults = cipherEncode.doFinal(byteContent); System.out.println("密文= "+Base64.encodeBase64String(EncodeResults)); // 解密 Cipher cipherDecode = Cipher.getInstance("AES");// 创建密码器 cipherDecode.init(Cipher.DECRYPT_MODE, key);// 初始化为解密模式的密码器 byte[] DecodeResults = cipherDecode.doFinal(EncodeResults); System.out.println("解密后= "+new String(DecodeResults)); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } }
输出:
原文= Let’s Build a Giant Airship 青海长云暗雪山 密钥= ehduBRkCK/qc2h02PT0UDprNGdi8H2bLLmAvUIC+7n8= 密文= cfA39gplPGSSIVCVRuWyaVY9Gfq2HPxvFEOfxD7n/F6b/CG8R3rERXrg70WrQ1nW 解密后= Let’s Build a Giant Airship 青海长云暗雪山
pom.xml中需要引入的依赖:
<dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version>1.15</version> </dependency>
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