37 lines
1.4 KiB
Java
37 lines
1.4 KiB
Java
package io.dataease.utils;
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import org.apache.commons.codec.binary.Base64;
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import org.apache.commons.lang3.StringUtils;
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import javax.crypto.BadPaddingException;
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import javax.crypto.Cipher;
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import javax.crypto.IllegalBlockSizeException;
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import javax.crypto.spec.IvParameterSpec;
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import javax.crypto.spec.SecretKeySpec;
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import static java.nio.charset.StandardCharsets.UTF_8;
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public class AesUtils {
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public static String aesDecrypt(String src, String secretKey, String iv) {
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if (StringUtils.isBlank(secretKey)) {
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throw new RuntimeException("secretKey is empty");
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}
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try {
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byte[] raw = secretKey.getBytes(UTF_8);
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SecretKeySpec secretKeySpec = new SecretKeySpec(raw, "AES");
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Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
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IvParameterSpec iv1 = new IvParameterSpec(iv.getBytes());
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cipher.init(Cipher.DECRYPT_MODE, secretKeySpec, iv1);
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byte[] encrypted1 = Base64.decodeBase64(src);
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byte[] original = cipher.doFinal(encrypted1);
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return new String(original, UTF_8);
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} catch (BadPaddingException | IllegalBlockSizeException e) {
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// 解密的原字符串为非加密字符串，则直接返回原字符串
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return src;
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} catch (Exception e) {
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throw new RuntimeException("decrypt error，please check parameters", e);
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}
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}
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}
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