Albirew/SonicareGenerator
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miroir de https://github.com/nicjes/SonicareGenerator.git synchronisé 2025-03-05 16:00:50 +01:00
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Cette révision appartient à :
Nico Jeschke 2023-06-22 17:36:25 +02:00
Parent 61b2083be4
révision b9e8ecd244
3 fichiers modifiés avec 86 ajouts et 36 suppressions
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36
Philips Sonicare NFC Password generation
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#include <stdio.h>
#include <stdint.h>
// Philips Sonicare NFC Head Password calculation by @atc1441
uint16_t CRC16(uint16_t crc, uint8_t *buffer, int len) // Default CRC16 Algo
{
while(len--)
{
crc ^= *buffer++ << 8;
int bits = 0;
do
{
if ( (crc & 0x8000) != 0 )
crc = (2 * crc) ^ 0x1021;
else
crc *= 2;
}
while ( ++bits < 8 );
}
return crc;
}
uint8_t nfctag_uid[] = {0x04,0xEC,0xFC,0xA2,0x94,0x10,0x90}; // NTAG UID
uint8_t nfc_second[] = "221214 12K"; // Head MFG String, printed on Head and at memory location 0x23
int main()
{
uint32_t crc_calc = CRC16(0x49A3, nfctag_uid, 7); // Calculate the NTAG UID CRC
crc_calc = crc_calc | (CRC16(crc_calc, nfc_second, 10) << 16); // Calculate the MFG CRC
crc_calc = (crc_calc >> 8) & 0x00FF00FF | (crc_calc << 8) & 0xFF00FF00; // Rotate the uin16_t bytes
printf("by @ATC1441 NFC CRC : 0x%08X expected: 0x61F0A50F\r\n", crc_calc);// Print out the calucated password
return 0;
}

58
app.js Fichier normal
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const uidRegex = /^([0-9a-fA-F]{2}:){6}[0-9a-fA-F]{2}$/;
const mfgRegex = /^\d{6} \d{2}[a-zA-Z]$/;
document.getElementById("form").addEventListener("submit", handleGenerate);
function handleGenerate(e) {
e.preventDefault();
let uidInput = document.getElementById("uid").value;
let mfgInput = document.getElementById("mfg").value;
if (uidRegex.test(uidInput) && mfgRegex.test(mfgInput)) {
let uid = uidInput.split(':').map(byteStr => parseInt(byteStr, 16)); // Convert UID to bytes
let mfg = [...mfgInput].map(c => BigInt(c.charCodeAt(0))); // Convert MFG to bytes
let password = generatePassword(uid, mfg);
showResult(password);
} else {
showInvalid();
}
}
function showResult(result) {
document.getElementById("result").innerHTML = `
<p>Generated password: ${result}</p>
<p>NFC Command: 1B:${result},A2:24:00:00:02:00</p>
`;
}
function showInvalid() {
document.getElementById("result").innerHTML = `
<p>Invalid input!</p>
`;
}
// Algorithm by @ATC1441 (https://gist.github.com/atc1441/41af75048e4c22af1f5f0d4c1d94bb56)
function crc16(crc, buffer) {
for (let byte of buffer) {
crc ^= BigInt(byte) << BigInt(8);
for (let i = 0; i < 8; i++) {
if (crc & BigInt(0x8000)) {
crc = (crc << BigInt(1)) ^ BigInt(0x1021);
} else {
crc <<= BigInt(1);
}
crc &= BigInt(0xFFFF);
}
}
return crc;
}
// Algorithm by @ATC1441 (https://gist.github.com/atc1441/41af75048e4c22af1f5f0d4c1d94bb56)
function generatePassword(uid, mfg) {
let crc = crc16(BigInt(0x49A3), uid); // Calculate the UID CRC
crc = crc | crc16(crc, mfg) << BigInt(16); // Calculate the MFG CRC
crc = ((crc >> BigInt(8)) & BigInt(0x00FF00FF)) | ((crc << BigInt(8)) & BigInt(0xFF00FF00)); // Rotate the bytes
let password = crc.toString(16).toUpperCase().replace(/(..)(..)(..)(..)/g, '$1:$2:$3:$4'); // Format the password
return password;
}

28
index.html Fichier normal
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Philips Sonicare Password Generator</title>
</head>
<body>
<div class="main">
<h1>Philips Sonicare Password Generator</h1>
<form id="form">
<p>
<label for="uid">UID (NFC Tag Serial Number): </label>
<input type="text" id="uid" placeholder="Enter the UID" value="04:EC:FC:A2:94:10:90" />
</p>
<p>
<label for="mfg">MFG (Printed underneath brush head)</label>
<input type="text" id="mfg" placeholder="Enter the MFG" value="221214 12K" />
</p>
<button id="generate">Generate</button>
<p><output id="result" for="uid mfg"></output></p>
</form>
</div>
<script type="text/javascript" src="app.js"></script>
</body>
</html>