* @param algorithmName 算法名称 * @param mode 模式 * @param key * @return * @throws Exception*/privatestaticCipher generateEcbCipher(String algorithmName,intmode,byte[] key) throws Exception { Cipher cipher=Cipher.getInstance(algorithmName, BouncyCastleProvider.PROVIDER_NAME); Key sm4Key=newSecret...
* @param algorithmPadding 分组填充算法枚举 * @param param 待加密参数 * @return */ public static String encrypt(AlgorithmNameEnums algorithmName , AlgorithmModeEnums algorithmMode, AlgorithmPaddingModeEnums algorithmPadding , String param) { String cipherText = ""; try { if(StringUtils.isNotBlank...
This paper describes two encryption designs of Chinese wireless local area network block cipher standard - SMS4 algorithm. Then these two designs are imple... Y Jin,H Shen,R You - IEEE 被引量: 31发表: 2007年 SMS4加密算法的设计和高效实现 本文对SMS4算法各运算单元进行了分析和优化设计,并根据该...
(x509EncodedKeySpec);Ciphercipher=Cipher.getInstance(ALGORITHM_NAME,ALGORITHM_PROVIDER);cipher.init(Cipher.ENCRYPT_MODE,pubKey);returncipher.doFinal(data);}catch(NoSuchAlgorithmException|NoSuchProviderException|NoSuchPaddingException|InvalidKeySpecException|InvalidKeyException|IllegalBlockSizeException|BadPadding...
SMS4 Encryption Algorithm for Wireless Networks SMS4 is a Chinese block cipher standard, mandated for use in protecting wireless net-works, and issued in January 2006. The input, output, and key of SMS4 are each 128 bits. The algorithm has 32 rounds, each of which modifies one of the .....
SMS4 algorithm is the first Chinese encryption standard for WLAN released by the Office of State Commercial Cryptography Administrator (OSCCA). AES is an i... Weiwei Yan,,Kaidi You,,Jun Han,,... - State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China;;; 被引量: 15发表: 0...
侧信道攻击,特别是差分功耗分析(differential power analysis,DPA)是对芯片中运行的分组密码算法进行安全性分析的主要手段之一.该文主要研究针对硬件实现的SM4算法的DPA攻击.合理地对明文进行选择,可以使SM4线性变换层有变化的输入比特尽可能少地影响输出比特,从而对硬件实现的SM4算法进行有效的侧信道攻击.通过分析线性变换...
下面是一个简单的类图,展示了本教程中使用的类和它们之间的关系。注意,这只是一个示例类图,你可以根据自己的实际情况进行调整。 JavaSM4CBCDecryptor+readCiphertext()+readKey()+setParameters()+createCipher()+setMode()+initDecryptor()+decryptData()+outputDecryptedText()+SecretKeySpec(key, algorithm)...
fast software implementation of SM4 algorithm has become an important research topic.This work investigates the software optimization implementation of SM4.Using SIMD technique,we present software optimization implementation of SM4,which has a significant advantage over current software implementation based on...