Logophilia-Website/crypt-lib.html at main · SimStim/Logophilia-Website · GitHub

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<html>
<head>
</head>
<body>
<script>
const crypt = (salt, text) => {
    const textToChars = (text) => text.split("").map((c) => c.charCodeAt(0));
    const byteHex = (n) => ("0" + Number(n).toString(16)).substr(-2);
    const applySaltToChar = (code) => textToChars(salt).reduce((a, b) => a ^ b, code);
    return text
    .split("")
    .map(textToChars)
    .map(applySaltToChar)
    .map(byteHex)
    .join("");
};

const decrypt = (salt, encoded) => {
    const textToChars = (text) => text.split("").map((c) => c.charCodeAt(0));
    const applySaltToChar = (code) => textToChars(salt).reduce((a, b) => a ^ b, code);
    return encoded
    .match(/.{1,2}/g)
    .map((hex) => parseInt(hex, 16))
    .map(applySaltToChar)
    .map((charCode) => String.fromCharCode(charCode))
    .join("");
};

// encrypting
const encrypted_text = crypt("Prince", "247e5c56d2619ee9d29c4c56d69cacf917b49a572696ea60ba742d365b983112");
console.log (encrypted_text);

// decrypting
const decrypted_string = decrypt("Prince", "1117144616401615471115121a46461a47111a401740161547151a404240451a121441171a42161411151a1546421513414214171147101516411a1b10121211");
console.log (decrypted_string);

</script>
</body>
</html>