79 lines
2.3 KiB
TypeScript
79 lines
2.3 KiB
TypeScript
/* tslint:disable:no-bitwise */
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/* Return password for samsung laptops
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* 12 or 18 hexhecimal digits like 07088120410C0000
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*/
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import { makeSolver } from "./utils";
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import { keyboardEncToAscii } from "./utils";
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const rotationMatrix1 = [
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7, 1, 5, 3, 0, 6, 2, 5, 2, 3, 0, 6, 1, 7, 6, 1, 5, 2, 7, 1, 0, 3, 7,
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6, 1, 0, 5, 2, 1, 5, 7, 3, 2, 0, 6
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];
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const rotationMatrix2 = [
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1, 6, 2, 5, 7, 3, 0, 7, 1, 6, 2, 5, 0, 3, 0, 6, 5, 1, 1, 7, 2, 5, 2,
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3, 7, 6, 2, 1, 3, 7, 6, 5, 0, 1, 7
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];
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function keyToAscii(intKeys: number[]): string | undefined {
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let out = "";
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for (let intKey of intKeys) {
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if (intKey === 0) {
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return out;
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}
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if (intKey < 32 || intKey > 127) {
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return undefined;
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}
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out += String.fromCharCode(intKey);
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}
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return out;
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}
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function decryptHash(hash: number[], key: number, rotationMatrix: number[]): number[] {
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let outhash: number[] = [];
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for (let i = 0; i < hash.length; i++) {
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const val = ((hash[i] << (rotationMatrix[7 * key + i])) & 0xFF) |
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(hash[i] >> (8 - rotationMatrix[7 * key + i]));
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outhash.push(val);
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}
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return outhash;
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}
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function samsungKeygen(serial: string): string[] {
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let hash: number[] = [];
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for (let i = 1; i < Math.floor(serial.length / 2); i++) {
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let val = parseInt(serial.charAt(2 * i) + serial.charAt(2 * i + 1), 16);
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hash.push(val);
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}
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let key = parseInt(serial.substring(0, 2), 16) % 5;
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let calcScanCodePwd = (matrix: number[]) =>
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keyboardEncToAscii(decryptHash(hash, key, matrix));
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let scanCodePassword = calcScanCodePwd(rotationMatrix1);
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if (scanCodePassword === "") {
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scanCodePassword = calcScanCodePwd(rotationMatrix2);
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}
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const asciiPassword1 = keyToAscii(decryptHash(hash, key, rotationMatrix1));
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const asciiPassword2 = keyToAscii(decryptHash(hash, key, rotationMatrix2));
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// TODO: This might require polyfil
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return [scanCodePassword, asciiPassword1, asciiPassword2].
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filter((code) => code ? true : false) as string[];
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}
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export let samsungSolver = makeSolver({
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name: "Samsung",
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examples: ["07088120410C0000"],
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inputValidator: (s) => /^[0-9ABCDEF]+$/i.test(s) && (
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s.length === 12 || s.length === 14 || s.length === 16 || s.length === 18
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),
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fun: samsungKeygen
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});
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