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const sodium = require('sodium-universal')
module.exports = function createKeyPair (seed) {
const publicKey = Buffer.alloc(32)
const secretKey = Buffer.alloc(32)
if (seed) sodium.crypto_kx_seed_keypair(publicKey, secretKey, seed)
else sodium.crypto_kx_keypair(publicKey, secretKey)
return { publicKey, secretKey }
}