int len = strlen(P); char* Ciphertext = (char*)malloc((len + 1) * sizeof(char)); for (int i = 0; i < len; i++) { if ('A' <= P[i] && P[i] <= 'Z') { Ciphertext[i] = (P[i] - 'A' + key) % 26 + 'A'; } else if ('a' <= P[i] && P[i] <= ...
Caesar cipher algorithm is one of the ancient algorithms. However, due to advances in technology the algorithm is now much simple to breach. This is because; each letter in the message is replaced by the same letter as specified. To raise the safety, some changes can ...
functionpalindrome(str){//利用正则,替换掉非字母和数字的字符,并全部转换成小写str=str.replace(/[^A-Za-z0-9]/g,"").toLowerCase();for(vari=0;i<str.length/2;i++){//判断。如果第i项不想等,返回falseif(str[i]!==str[str.length-i-1]){returnfalse;}}returntrue} 4.Find the Longest W...
functionpalindrome(str){//利用正则,替换掉非字母和数字的字符,并全部转换成小写str=str.replace(/[^A-Za-z0-9]/g,"").toLowerCase();for(vari=0;i<str.length/2;i++){//判断。如果第i项不想等,返回falseif(str[i]!==str[str.length-i-1]){returnfalse;}}returntrue} 4.Find the Longest W...
3.Check for Palindromes 如果给定的字符串是回文,返回true,反之,返回false。 如果一个字符串忽略标点符号、大小写和空格,正着读和反着读一模一样,那么这个字符串就是palindrome(回文)。 注意你需要去掉字符串多余的标点符号和空格,然后把字符串转化成小写来验证此字符串是否为回文。
A symmetric key block cipher called Blowfish uses the same key for both encryption and decryption of data. Blowfish is quick and efficient mainly because it is simpler than other cryptography methods. While there are a few possible risks involved in achieving the highest level of data security, ...
cryptographyaes-algorithmfpga-assemblysystem-on-chip-designcaesar-algorithmdigital-security-system-designlightweight-encryptionchacha-algorithmprince-algorithmprinted-circuit-board-design UpdatedSep 2, 2024 Verilog Demonstration suites for AES instruction set in PuTTY SSH client ...
freeCodeCamp:Caesars Cipher 摘要:让上帝的归上帝,凯撒的归凯撒。 下面我们来介绍风靡全球的凯撒密码Caesar cipher,又叫移位密码。 移位密码也就是密码中的字母会按照指定的数量来做移位。 一个常见的案例就是ROT13密码,字母会移位13个位置。由'A' ↔ 'N', 'B' ↔ 'O',以此类推。 写一个ROT13函数,实...
Just some misc python scripts, mainly for practice and learning python python-3-6 python3 bubble-sort prime-numbers wordcount mastermind caesar-cipher mastermind-board-game filechange mastermind-game bubble-sort-algorithm filechangewatcher Updated Mar 4, 2020 Python voyager2005 / java-sorting-tech...
The RC4 cipher algorithm, for example, is extremely fast and simple to implement. Unfortunately, RC4 is usually considered less secure than more rigorous algorithms like AES. It must be noted, however, that there are no known practical attacks on RC4 as long as it is used properly (remember...