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chore: update "generateSignalPubKey" function

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This commit is contained in:
Adhiraj Singh
2022-04-18 08:23:32 +05:30
parent 5200bf6477
commit 2720879545
2 changed files with 7 additions and 11 deletions
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9
src/Utils/crypto.ts
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@@ -1,6 +1,7 @@
import { createCipheriv, createDecipheriv, createHash, createHmac, randomBytes } from 'crypto' import { createCipheriv, createDecipheriv, createHash, createHmac, randomBytes } from 'crypto'
import * as curveJs from 'curve25519-js' import * as curveJs from 'curve25519-js'
import HKDF from 'futoin-hkdf' import HKDF from 'futoin-hkdf'
import { KEY_BUNDLE_TYPE } from '../Defaults'
import { KeyPair } from '../Types' import { KeyPair } from '../Types'
export const Curve = { export const Curve = {
@@ -22,12 +23,14 @@ export const Curve = {
return curveJs.verify(pubKey, message, signature) return curveJs.verify(pubKey, message, signature)
} }
} }
/** prefix version byte to the pub keys, required for some curve crypto functions */
export const generateSignalPubKey = (pubKey: Uint8Array | Buffer) => (
Buffer.concat([ KEY_BUNDLE_TYPE, pubKey ])
)
export const signedKeyPair = (keyPair: KeyPair, keyId: number) => { export const signedKeyPair = (keyPair: KeyPair, keyId: number) => {
const signKeys = Curve.generateKeyPair() const signKeys = Curve.generateKeyPair()
const pubKey = new Uint8Array(33) const pubKey = generateSignalPubKey(keyPair.public)
pubKey.set([5], 0)
pubKey.set(signKeys.public, 1)
const signature = Curve.sign(keyPair.private, pubKey) const signature = Curve.sign(keyPair.private, pubKey)

9
src/Utils/signal.ts
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@@ -4,16 +4,9 @@ import { GroupCipher, GroupSessionBuilder, SenderKeyDistributionMessage, SenderK
import { KEY_BUNDLE_TYPE } from '../Defaults' import { KEY_BUNDLE_TYPE } from '../Defaults'
import { AuthenticationCreds, AuthenticationState, KeyPair, SignalAuthState, SignalIdentity, SignalKeyStore, SignedKeyPair } from '../Types/Auth' import { AuthenticationCreds, AuthenticationState, KeyPair, SignalAuthState, SignalIdentity, SignalKeyStore, SignedKeyPair } from '../Types/Auth'
import { assertNodeErrorFree, BinaryNode, getBinaryNodeChild, getBinaryNodeChildBuffer, getBinaryNodeChildren, getBinaryNodeChildUInt, jidDecode, JidWithDevice, S_WHATSAPP_NET } from '../WABinary' import { assertNodeErrorFree, BinaryNode, getBinaryNodeChild, getBinaryNodeChildBuffer, getBinaryNodeChildren, getBinaryNodeChildUInt, jidDecode, JidWithDevice, S_WHATSAPP_NET } from '../WABinary'
import { Curve } from './crypto' import { Curve, generateSignalPubKey } from './crypto'
import { encodeBigEndian } from './generics' import { encodeBigEndian } from './generics'
export const generateSignalPubKey = (pubKey: Uint8Array | Buffer) => {
const newPub = Buffer.alloc(33)
newPub.set([5], 0)
newPub.set(pubKey, 1)
return newPub
}
const jidToSignalAddress = (jid: string) => jid.split('@')[0] const jidToSignalAddress = (jid: string) => jid.split('@')[0]
export const jidToSignalProtocolAddress = (jid: string) => { export const jidToSignalProtocolAddress = (jid: string) => {