二、对称密码算法(Symmetric-key Algorithm) 对称算法是指加密和解密都使用相同密钥的密码算法,又称为秘密秘钥算法或单密钥算法。 DES/3DES:由于运算太耗时,已被逐步淘汰 AES:由DES升级而来,目前安全强度较高、应用范围较广 SM1:国密算法,硬件层面实现 SM4:国密算法,软件层面实现 AES/DES/DES3算法: 常见加密模式(m...
加密一般分为对称加密(Symmetric Key Encryption)和非对称加密(Asymmetric Key Encryption)常见的对称加密算法:DES、3DES、DESX、Blowfish、IDEA、RC4、RC5、RC6 和 AES常见的非对称加密算法:RSA、ECC (移动设备用)、Diffie-Hellman、El Gamal、DSA (数字签名用)常见的 Hash 算法:MD2、MD4、MD5、HAVAL、SHA、SHA-1...
C# 加密类:https://learn.microsoft.com/en-us/dotnet/api/system.security.cryptography.sha256?view=net-6.0 加密算法导读 加密一般分为对称加密(Symmetric Key Encryption)和非对称加密
This paper is devoted to the security and attack aspects of cryptographic techniques with new symmetric key algorithm TORDES. This algorithm is proposed to achieve the different goals of security i.e., Availability, Confidentiality and Integrity. We will also discuss the security threats in this ...
网络安全通信中要用到两类密码算法,加密一般分为对称加密(Symmetric Key Encryption)和非对称加密(Asymmetric Key Encryption)。对称密码算法有时又叫传统密码算法、秘密密钥算法或单密钥算法,非对称密码算法也叫公开密钥密码算法或双密钥算法。对称密码算法的加密密钥能够从解密密钥中推算出来,反过来也成立。在大多数对称算...
CREATESYMMETRICKEYkey1WITHALGORITHM=DES ENCRYPTIONBYPASSWORD='abc$123' GO OPENSYMMETRICKEYkey1 DECRYPTIONBYPASSWORD='abc$123' DECLARE@strNVARCHAR(100),@EncryptedVARBINARY(MAX) SET@str=N'要加密的字串' SELECT@Encrypted=ENCRYPTBYKEY(KEY_GUID('key1'),@str) ...
{ // 算法的模式:DES、3DES、AES、RC public static final String MODE_ALGORITHM = "DES"; // 编码格式 public static final String CHARSET = "UTF-8"; // 明文 public static final String TEXT = "abcde"; // 原始密钥 public static final String KEY = "ST83=@XV"; /** * Base64编码...
CREATE SYMMETRIC KEY key1 WITH ALGORITHM=DES ENCRYPTION BY PASSWORD='abc$123' GO OPEN SYMMETRIC KEY key1 DECRYPTION BY PASSWORD='abc$123' DECLARE @str NVARCHAR(100),@Encrypted VARBINARY(MAX) SET @str=N'要加密的字串' SELECT @Encrypted=ENCRYPTBYKEY(KEY_GUID('key1'),@str) ...
P. C. Mandal, "Evaluation of performance of the Symmetric Key Algorithms : DES , 3DES , AES and Blowfish," vol. 3, no. 8, pp. 6-9, 2012.Pratap Chandra Mandal, "Evaluation of performance of the Symmetric Key Algorithms: DES, 3DES, AES and Blowfish", Journal of Global Research in...
DES):An encryption algorithm that encrypts data with a 56-bit, randomly generated symmetric key. DES is not a secure encryption algorithm and it was cracked many times. Data Encryption Standard (DES) was developed by IBM and the U.S. Government together. DES is a block encryption algorithm...