(当今的AES,是AES竞赛优胜者Rijndael的精简版,相比于原版的Rijndael,其block size即块大小被限定为了128 bits,而192 bits和256 bits块大小不再被支持) AES通过密钥来加密、解密信息,并且加密和解密过程使用的密钥完全相同,加密过程和解密过程具有一定的对称性,因此AES属于密码学中的对称密钥算法(symmetric-key algorith...
In cryptography, theElGamalencryption system is anasymmetric key encryption algorithm(非对称密钥加密算法)for public-key cryptography which is based on the Diffie–Hellman key exchange. It was described by Taher Elgamal in 1985. ElGamal encryption is used in the free GNU Privacy Guard software, recen...
System.Security.Cryptography.RSAPKCS1SignatureDeformatter RSADeformatter = new System.Security.Cryptography.RSAPKCS1SignatureDeformatter(RSA); //指定解密的时候HASH算法为MD5 RSADeformatter.SetHashAlgorithm("MD5"); DeformatterData =Convert.FromBase64String(p_strDeformatterData); if(RSADeformatter.VerifySi...
Cryptography Basic Concepts ►Introduction to AES (Advanced Encryption Standard) What Is AES (Advanced Encryption Standard)? ►AES, or Rijndael, Encryption Algorithm AES Key Schedule Algorithm AES Key Schedule Example AES MixColumns() Procedure Algorithm ...
SHA,secure hash algorithm,安全散列算法,包括SHA-224、SHA-256、SHA-384、SHA-512 MAC,message authentication code,消息认证码算法,综合了MD和SHA算法,包括HmacMD5、HmacSHA1、HmacSHA256、HmacSHA384、HmacSHA512 1)、MD 定义 MD5是由MD2、MD3、MD4改进而来,是典型的消息摘要算法。MD5算法对输入任意长度的消息...
The main aim of this paper is to provide a broad review of network security and cryptography, with particular regard to encryption and decryption algorithm. Network security and cryptography is a subject too wide ranging to cover about how to protect information in digital form and to provide ...
{ 136 137 //从文件中取得Hash描述 138 System.Security.Cryptography.HashAlgorithm MD5 = System.Security.Cryptography.HashAlgorithm.Create("MD5"); 139 HashData = MD5.ComputeHash(objFile); 140 objFile.Close(); 141 142 return true; 143 144 } 145 146 //获取Hash描述表 147 public bool GetHash(...
Security.Cryptography Assembly: System.Security.Cryptography.dll Source: AesManaged.cs Generates a random initialization vector (IV) to use for the symmetric algorithm. C# Copy public override void GenerateIV (); Applies to ProductVersions .NET Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core...
默认UTF-8 /// 加密算法 /// <returns>RSA私钥解密之后的明文</returns> public static string DecryptWithPublicKey(string publicKey, string content, string encoding = "UTF-8", string algorithm = "RSA/ECB/PKCS1Padding") { return Encoding.GetEncoding(encoding).GetString(DecryptWithPublicKey(Convert...
AES通过密钥来加密、解密信息,并且加密和解密过程使用的密钥完全相同,加密过程和解密过程具有一定的对称性,因此AES属于密码学中的对称密钥算法(symmetric-key algorithm)。AES支持三种密钥大小(key size):128 bits、192 bits和256 bits。一般认为其加密强度随密钥长度的增大而增大。