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Added 'Key Padding' to DES

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This commit is contained in:
Michael Rowley 2022-03-22 23:15:03 +00:00
parent a811041fe2
commit 99afd014f2
3 changed files with 36 additions and 18 deletions
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15
src/core/operations/DESDecrypt.mjs
View file

@ -53,6 +53,11 @@ class DESDecrypt extends Operation {
"name": "Output",
"type": "option",
"value": ["Raw", "Hex"]
},
{
"name": "Key Padding",
"type": "option",
"value": ["None", "Null", "Repeat"]
}
];
}
@ -63,9 +68,13 @@ class DESDecrypt extends Operation {
* @returns {string}
*/
run(input, args) {
const key = Utils.convertToByteString(args[0].string, args[0].option),
iv = Utils.convertToByteArray(args[1].string, args[1].option),
[,, mode, inputType, outputType] = args;
const key = Utils.convertToByteString(args[0].string, args[0].option);
var iv = Utils.convertToByteArray(args[1].string, args[1].option),
[,, mode, inputType, outputType, keyPadding] = args;
if (keyPadding !== "None" && key.length < 8) {
key = key.padEnd(8, keyPadding == "Null" ? "\0" : key);
}
if (key.length !== 8) {
throw new OperationError(`Invalid key length: ${key.length} bytes

15
src/core/operations/DESEncrypt.mjs
View file

@ -53,6 +53,11 @@ class DESEncrypt extends Operation {
"name": "Output",
"type": "option",
"value": ["Hex", "Raw"]
},
{
"name": "Key Padding",
"type": "option",
"value": ["None", "Null", "Repeat"]
}
];
}
@ -63,9 +68,13 @@ class DESEncrypt extends Operation {
* @returns {string}
*/
run(input, args) {
const key = Utils.convertToByteString(args[0].string, args[0].option),
iv = Utils.convertToByteArray(args[1].string, args[1].option),
[,, mode, inputType, outputType] = args;
var key = Utils.convertToByteString(args[0].string, args[0].option);
const iv = Utils.convertToByteArray(args[1].string, args[1].option),
[,, mode, inputType, outputType, keyPadding] = args;
if (keyPadding !== "None" && key.length < 8) {
key = key.padEnd(8, keyPadding == "Null" ? "\0" : key);
}
if (key.length !== 8) {
throw new OperationError(`Invalid key length: ${key.length} bytes