我们需要创建一个方法,它接受原始文本和移位数作为参数,将文本中的每个字母按指定的位数进行替换。 publicclassCaesarCipher{// 加密方法publicstaticStringencrypt(Stringtext,intshift){StringBuilderresult=newStringBuilder();// 遍历每一个字符for(charc:text.toCharArray()){// 处理大写字母if(Character.isUpperCase(c...
int DECODE(char* ciphertext, int key){ assert(ciphertext != NULL); int sz = 0; for(sz=0;ciphertext[sz]!='\0';sz++); int i = 0; for(i = 0 ; i < sz ; i++) { if(ciphertext[i] >= 'A' && ciphertext[i] <= 'Z') { ciphertext[i] = ((ciphertext[i]-'A')-key...
publicclassCaesarCipher{ publicstaticvoidmain(String[] args){ //需要转换的字符串 Stringstr="R uxen hxd."; for(inti=0;i<26;i++){ System.out.println(i+" "+caesarSwitch(str,i)); } } /** * 凯撒转换 *@paramstr 需要转换的字符串 *@paramstep 偏移量 *@return转换后的字符串 */ publi...
The Caesar cipher is a technique in which an encryption algorithm is used to change some text for gaining integrity, confidentiality, or security of a message. In cryptography there are many algorithms that are used to achieve the same, but Caesar cipher is the earliest and easiest algorithm us...
年左右由凯撒大帝发明该密码应用在军事通信之中,故而得名为恺撒密码(Caesar cipher)。恺撒密码一种代替密码,其加密方式就是将英文中的每个字母用另外一个字母来代替。恺撒密码对英文26个字母进行移位代替的密码,属于“移位代替密码”,是最简单的一类代替密码。恺撒密码本质是构建了一张明密代替表,即密码本。明...
定义一个Caesar密码类,成员变量只有密钥,也就是偏移量key 代码如下: publicclassCaesarCrypto {privateintkey;publicCaesarCrypto(intkey) {//TODO Auto-generated constructor stubthis.key =key; }publicString getCipher(String plain) {char[] cipherChars =plain.toCharArray();for(inti = 0; i < cipherChars...
Code Blame 131 lines (105 loc) · 3.69 KB Raw package ciphers; import java.util.Scanner; /** * * A Java implementation of Caesar Cipher. /It is a type of substitution cipher * in which each letter in the plaintext is replaced by a letter some fixed * number of positions down the ...
10:简单密码 总时间限制: 1000ms 内存限制: 65536kB描述 Julius Caesar曾经使用过一种很简单的密码。
Strings Caesar Cipher: Encryption CaesarCipherEncryption.java Strings Game of Thrones - I GameOfThronesI.java Strings Sherlock and the Valid String SherlockAndTheValidString.java Recursion Recursive Digit Sum RecursiveDigitSum.java Dynamic Programming Fibonacci Modified FibonacciModified.java Dynamic ...
密文(Ciphertext):明文经过编码变换所生成的数据 加密(Encryption):对明文进行编码变换生成密文的过程 解密(Decryption):将密文恢复成明文的过程 密钥:密码算法需要用到密钥的,密钥就相当于保险库大门的钥匙,重要性不言而喻,所以切记不要泄露密码的密钥。 密钥 (Key):控制明文与密文之间相互变换的,分为加密密钥和解密...