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Signature

Convert signature into tuple format from object, compact signatures.

Import the getSignatureTuple from @kaiachain/web3js-ext packages

To compress a public key from {r, s, v} format to tuple, use getSignatureTuple with the signature object as param

To compress a public key from compact 65 bytes format to tuple, use getSignatureTuple with the compact signature as param

signatureUtils.js


const { getSignatureTuple } = require('@kaiachain/web3js-ext')
async function main() {
  console.log(
    'signature from { v, r, s } object =',
    getSignatureTuple({
      v: 27,
      r: '0x66809fb130a6ea4ae4e823baa92573a5f1bfb4e88e64048aecfb18a2b4012b99',
      s: '0x75c2c3e5f7b0a182c767137c488649cd5104a5e747371fd922d618e328e5c508',
    })
  )
  console.log(
    'signature from compact 65 bytes =',
    getSignatureTuple(
      '0x66809fb130a6ea4ae4e823baa92573a5f1bfb4e88e64048aecfb18a2b4012b9975c2c3e5f7b0a182c767137c488649cd5104a5e747371fd922d618e328e5c5081b'
    )
  )
}
main()

output


❯ node signatureUtils.js
signature from { v, r, s } object = [
  '0x1b',
  '0x66809fb130a6ea4ae4e823baa92573a5f1bfb4e88e64048aecfb18a2b4012b99',
  '0x75c2c3e5f7b0a182c767137c488649cd5104a5e747371fd922d618e328e5c508'
]
signature from compact 65 bytes = [
  '0x1b',
  '0x66809fb130a6ea4ae4e823baa92573a5f1bfb4e88e64048aecfb18a2b4012b99',
  '0x75c2c3e5f7b0a182c767137c488649cd5104a5e747371fd922d618e328e5c508'
]