【发布时间】:2017-04-12 01:15:20
【问题描述】:
我正在尝试使用以下代码使用 AES/CFB 模式解密,
final static public String ENCRYPT_KEY = "4EBB854BC67649A99376A7B90089CFF1";
final static public String IVKEY = "ECE7D4111337A511F81CBF2E3E42D105";
private static String deCrypt(String key, String initVector, String encrypted) {
try {
IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
SecretKeySpec skSpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
int maxKeyLen = Cipher.getMaxAllowedKeyLength("AES");
Cipher cipher = Cipher.getInstance("AES/CFB/NoPadding");
cipher.init(Cipher.DECRYPT_MODE, skSpec, iv);
byte[] original = cipher.doFinal(encrypted.getBytes());
return new String(original);
} catch (Exception e) {
e.printStackTrace();
}
return "";
}
并抛出以下错误,
Wrong IV length: must be 16 bytes long.
ENCRYPT_KEY 和 IVKEY 以上都是有效的。有人可以帮忙吗?
【问题讨论】:
标签: java encryption aes java-security