XSalsa20 codec that implements that abstract-encoding interface. Nonces are generated randomly and prepended to the ciphertext.
$ npm install xsalsa20-encodingconst codec = require('xsalsa20-encoding')(secretKey)
// encode a value
buffer = codec.encode(value)
// decode a value
value = codec.decode(buffer)const crypto = require('crypto')
const Codec = require('xsalsa20-encoding')
const key = crypto.randomBytes(32)
const codec = Codec(key)
const hello = codec.encode('hello')
const world = codec.encode('world')
console.log('%s %s', codec.decode(hello), codec.decode(world)) // 'hello world'const pbs = require('protocol-buffers')
const { Message } = pbs(`
message {
string data = 1;
}
`)
const codec = Codec(key, { valueEncoding: Message })
const encoded = codec.encode({ data: 'hello world' })
const message = codec.decode(encoded) // { data: 'hello world' }Create a codec object from 32 byte secretKey.
const key = crypto.randomBytes(32)
const codec = Codec(key)Encode a value using xsalsa20
(XOR) into an optional output buffer at an optional offset
defaulting to 0. If an output buffer is not given, one is allocated
for you and returned.
const buffer = codec.encode('hello world')Decode a buffer using xsalsa20
(XOR) at an optional offset defaulting to 0.
const value = codec.decode(buffer)Returns the encoding length for a given value.
const length = codec.encodingLength('hello world') // 35MIT
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