AES加密 ECB模式 PKCS7Padding填充

package testAES

import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.springframework.stereotype.Component;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import java.nio.charset.StandardCharsets;
import java.security.Security;
import java.util.base64;

@Compon
ent
public class AesUtils {
	private static final String SECRET = "AES";
	private static final String CIPHER_ALGORITHM = "AES/ECB/PKCS7Padding";

	static {
		if (Security.getProvider(BouncyCastleProvider.PROVIDER_NAME) == null){
			Security.addProvider(new BouncyCastleProvider());
		}
	}

	
	public static String AESECBPkcs7PaddingEncrypt(String str, String key) throws Exception {
		Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM);
		byte[] keyBytes = key.getBytes(StandardCharsets.UTF_8);
		cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(keyBytes, SECRET));
		byte[] doFinal = cipher.doFinal(str.getBytes(StandardCharsets.UTF_8));
		return new String(base64.getEncoder().encode(doFinal));
	}

	
	public static String AESECBPkcs7PaddingDecrypt(String str, String key) throws Exception {
		Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM);
		byte[] keyBytes = key.getBytes(StandardCharsets.UTF_8);
		cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(keyBytes, SECRET));
		byte[] doFinal = cipher.doFinal(base64.getDecoder().decode(str));
		return new String(doFinal);
	}
	
	
	public static void main(String[] args) throws Exception {
		String str = "12345678";
		String key = "1234123412341234";
		System.out.println("原始字符串：" + str);
		String encryptStr = AESECBPkcs7PaddingEncrypt(str, key);
		System.out.println("加密字符串：" + encryptStr);
		String decryptStr = AESECBPkcs7PaddingDecrypt(encryptStr, key);
		System.out.println("解密字符串：" + decryptStr);
	}
}

        
            org.bouncycastle
            bcprov-jdk16
            1.46
        

参考内容
http://www.10qianwan.com/articledetail/651897.html
https://blog.csdn.net/lyjilu2008/article/details/84733762