redcrypto

web app cryptography

Usage no npm install needed!

<script type="module">
  import redcrypto from 'https://cdn.skypack.dev/redcrypto';
</script>

README

🛡️ redcrypto

asymmetric crypto for modern web apps

📦 npm install redcrypto
🎟️ json web tokens with rsa256
🖋️ digital signatures, default rsa256
✨ modern typescript + esm

tokens

functions that work on a node server

import {tokenSign} from "redcrypto/x/token-sign.js"

void async function main() {
  const token = await tokenSign({
    payload: {whatever: "lol this message is authentic"},
    privateKey: "<your private pem key goes here>",
    lifespan: 1000 * 60 * 60 * 24,
  })
}()

import {tokenVerify} from "redcrypto/x/token-verify.js"

void async function main() {

  // will throw error if token sucks
  const payload = await tokenVerify({
    token: "<your token goes here>",
    publicKey: "<your public pem key goes here>",
  })
}()

functions that work anywhere, including in-browser

import {tokenDecode} from "redcrypto/x/token-decode.js"

// does not verify authenticity,
// just unpacks the token
const {header, data: {payload}} = tokenDecode("<your token goes here>")

signatures

functions that work on a node server

import {signatureSign} from "redcrypto/x/signature-sign.js"

void async function main() {
  const signature = signatureSign({
    body: "lol this message is authentic",
    privateKey: "<your private pem key goes here>",
  })
}()

import {signatureVerify} from "redcrypto/x/signature-verify.js"

void async function main() {

  // will throw if signature sucks
  const body = signatureVerify({
    body: "lol this message is authentic",
    signature: "<your generated signature here>",
    publicKey: "<your public pem key goes here>",
  })
}()