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Security AES

Dart AES

	import 'package:encrypt/encrypt.dart';

	final aesKey = Key.fromUtf8('wWKK335SKLDFJ146');
	final iv = IV.fromLength(16);
	final encrypter = Encrypter(AES(aesKey, mode: AESMode.cbc, padding: 'PKCS7'));
	final encrypted = encrypter.encrypt(content, iv: iv);
	final decrypted = encrypter.decrypt(encrypted, iv: iv);

	print(decrypted); // Lorem ipsum dolor sit amet, consectetur adipiscing elit
	print(encrypted.base64);

Java AES

	import java.security.spec.AlgorithmParameterSpec;
	import java.util.Base64;
	import javax.crypto.Cipher;
	import javax.crypto.spec.IvParameterSpec;
	import javax.crypto.spec.SecretKeySpec;

	/**
	 * 加密
	 *
	 * @param content
	 * @param key
	 * @return
	 */
	public static String encrypt(@NotNull String content, @NotNull String key) {
		byte[] result = null;
		try {
			Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
			SecretKeySpec keySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
			AlgorithmParameterSpec paramSpec = new IvParameterSpec(new byte[16]);
			cipher.init(Cipher.ENCRYPT_MODE, keySpec, paramSpec);
			result = cipher.doFinal(content.getBytes("UTF-8"));
		} catch (Exception ex) {
		}
		return Base64.getEncoder().encodeToString(result);
	}

	/**
	 * 解密
	 *
	 * @param content
	 * @param key
	 * @return
	 */
	public static String decrypt(@NotNull String content, @NotNull String key) {
		try {
			Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
			SecretKeySpec keySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
			AlgorithmParameterSpec paramSpec = new IvParameterSpec(new byte[16]);
			cipher.init(Cipher.DECRYPT_MODE, keySpec, paramSpec);
			return new String(cipher.doFinal(Base64.getDecoder().decode(content)), "UTF-8");
		} catch (Exception ex) {
			ex.printStackTrace();
		}
		return "";
	}

Reference

高级加密标准
Advanced Encryption Standard
Advanced Encryption Standard
initialization vector

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