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Improved GOST algorithm naming and block size selection

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n1474335 2024-05-16 18:09:12 +01:00
parent fb818c3149
commit 86d59783fa
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GPG key ID: D15457B7B4AF3F37
7 changed files with 157 additions and 87 deletions
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37
src/core/operations/GOSTEncrypt.mjs
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@ -55,22 +55,19 @@ class GOSTEncrypt extends Operation {
type: "argSelector",
value: [
{
name: "GOST 28147 (Magma, 1989)",
off: [5],
name: "GOST 28147 (1989)",
on: [6]
},
{
name: "GOST R 34.12 (Magma, 2015)",
off: [5]
},
{
name: "GOST R 34.12 (Kuznyechik, 2015)",
on: [5],
off: [6]
off: [5]
}
]
},
{
name: "Block length",
type: "option",
value: ["64", "128"]
},
{
name: "sBox",
type: "option",
@ -100,14 +97,30 @@ class GOSTEncrypt extends Operation {
* @returns {string}
*/
async run(input, args) {
const [keyObj, ivObj, inputType, outputType, version, length, sBox, blockMode, keyMeshing, padding] = args;
const [keyObj, ivObj, inputType, outputType, version, sBox, blockMode, keyMeshing, padding] = args;
const key = toHexFast(Utils.convertToByteArray(keyObj.string, keyObj.option));
const iv = toHexFast(Utils.convertToByteArray(ivObj.string, ivObj.option));
input = inputType === "Hex" ? input : toHexFast(Utils.strToArrayBuffer(input));
const versionNum = version === "GOST 28147 (Magma, 1989)" ? 1989 : 2015;
const blockLength = versionNum === 1989 ? 64 : parseInt(length, 10);
let blockLength, versionNum;
switch (version) {
case "GOST 28147 (1989)":
versionNum = 1989;
blockLength = 64;
break;
case "GOST R 34.12 (Magma, 2015)":
versionNum = 2015;
blockLength = 64;
break;
case "GOST R 34.12 (Kuznyechik, 2015)":
versionNum = 2015;
blockLength = 128;
break;
default:
throw new OperationError(`Unknown algorithm version: ${version}`);
}
const sBoxVal = versionNum === 1989 ? sBox : null;
const algorithm = {