Mirror
/
CyberChef
mirror of https://github.com/gchq/CyberChef.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Tidied Substitute

This commit is contained in:
n1474335 2022-11-25 11:23:32 +00:00
parent 743b834f6d
commit d7561ec208
1 changed files with 10 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
src/core/operations/Substitute.mjs
View File

@ -60,9 +60,10 @@ class Substitute extends Operation {
// convert using the dictionary keeping the case of the input character
if (dict[char] !== undefined)
if (dict[char] !== undefined) {
// if the character is in the dictionary return the value with the input case
return isUpperCase ? dict[char].toUpperCase() : dict[char].toLowerCase();
}
// check for the other case, if it is in the dictionary return the value with the right case
if (isUpperCase) {
@ -84,21 +85,24 @@ class Substitute extends Operation {
*/
run(input, args) {
const plaintext = Utils.expandAlphRange([...args[0]]),
ciphertext = Utils.expandAlphRange([...args[1]]);
ciphertext = Utils.expandAlphRange([...args[1]]),
ignoreCase = args[2];
let output = "";
const ignoreCase = args[2];
if (plaintext.length !== ciphertext.length)
if (plaintext.length !== ciphertext.length) {
output = "Warning: Plaintext and Ciphertext lengths differ\n\n";
}
// create dictionary for conversion
const dict = {};
for (let i = 0; i < Math.min(ciphertext.length, plaintext.length); i++)
for (let i = 0; i < Math.min(ciphertext.length, plaintext.length); i++) {
dict[plaintext[i]] = ciphertext[i];
}
// map every letter with the conversion function
for (const character of input)
for (const character of input) {
output += this.cipherSingleChar(character, dict, ignoreCase);
}
return output;
}