I want to create a master key where I XOR 3 random keys (generated with crypto.randomBytes
).
A,B,C = crypto.randomBytes(32) MASTER_KEY = A ^ B ^ C;
I am not sure how to make this work in Javascript. randomBytes
returns a Buffer. I’m not sure if I have to do a .toString()
on it or just perform the XOR as a Buffer?
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Answer
This should do:
const BUF_LEN = 32 const result = Buffer.alloc(BUF_LEN) for (let i = 0; i < BUF_LEN; i++) { const [a, b, c] = [A.readUInt8(i), B.readUInt8(i), C.readUInt8(i)] result.writeUInt8(a ^ b ^ c, i) } console.log(result.toString('hex'))