importjava.util.Scanner;publicclassHillCipher{privateint[][]keyMatrix;// 生成密钥矩阵的方法publicvoidgenerateKeyMatrix(Stringkey){intlength=(int)Math.sqrt(key.length());keyMatrix=newint[length][length];intk=0;// 填充密钥矩阵for(inti=0;i<length;i++){for(intj=0;j<length;j++){keyMatrix[...
希尔密码java 希尔密码例题,【HillCipher】希尔密码简述基础知识回顾加密解密简述加密方式为:密钥矩阵*明文向量然后取模26解密方式为:密钥矩阵的逆矩阵*密文向量然后取模26用公式描述即为:**C=E(K,P)=KPmod26**其中C为加(解)密后的文字E为hill密码算法K为key密钥P为待
The Four ciphers used, in random order in your set, are: random simple substitution cipher Vigen`ere cipher transposition cipher 2 2 Hill cipherAll plaintexts are written in English and use upper and lower case letters.a. (3 marks) For each ciphertext, using either a table or a ...
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malware – A program which compromises security, such as a virus, worm, or spider. outsider – An attacker who operates outside the firewall. system administrator – The account which launches Java DB and is responsible for configuring the security of the Java DB system. technique – A ...
malware – A program which compromises security, such as a virus, worm, or spider. outsider – An attacker who operates outside the firewall. system administrator – The account which launches Java DB and is responsible for configuring the security of the Java DB system. technique – A ...