Tag: nonce

如何处理AES CTR的IV / Nonce / Counter？

import javax.crypto.Cipher; public abstract class Crypto { private static final String CIPHER_ALGORITHM = “AES/CTR/NoPadding”; private String AesKeyString = “ByWelFHCgFqivFZrWs89LQ==”; private void setKey() throws NoSuchAlgorithmException{ byte[] keyBytes; keyBytes = Base64.getDecoder().decode(AesKeyString); aesKey = new SecretKeySpec(keyBytes, “AES”); } protected byte[] execute(int mode, byte[] target, byte[] iv) throws Exception{ Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM); IvParameterSpec ivSpec = new IvParameterSpec(iv); cipher.init(mode, […]