increase bech32 max size to 5000.

remove extra &&

README.md

@@ -182,7 +182,7 @@ let pk2 = getPublicKey(sk2)
 
 // on the sender side
 let message = 'hello'
-let ciphertext = await nip04.encrypt(sk1, pk2, 'hello')
+let ciphertext = await nip04.encrypt(sk1, pk2, message)
 
 let event = {
   kind: 4,
@@ -196,7 +196,7 @@ sendEvent(event)
 
 // on the receiver side
 sub.on('event', (event) => {
-  let sender = event.tags.find(([k, v]) => k === 'p' && && v && v !== '')[1]
+  let sender = event.tags.find(([k, v]) => k === 'p' && v && v !== '')[1]
   pk1 === sender
   let plaintext = await nip04.decrypt(sk2, pk1, event.content)
 })

nip06.test.js

@@ -0,0 +1,15 @@
+/* eslint-env jest */
+const {nip06} = require('./lib/nostr.cjs')
+
+test('generate private key from a mnemonic', async () => {
+  const mnemonic = 'zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo wrong'
+  const privateKey = nip06.privateKeyFromSeedWords(mnemonic)
+  expect(privateKey).toEqual('c26cf31d8ba425b555ca27d00ca71b5008004f2f662470f8c8131822ec129fe2')
+})
+
+test('generate private key from a mnemonic and passphrase', async () => {
+  const mnemonic = 'zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo wrong'
+  const passphrase = '123'
+  const privateKey = nip06.privateKeyFromSeedWords(mnemonic, passphrase)
+  expect(privateKey).toEqual('55a22b8203273d0aaf24c22c8fbe99608e70c524b17265641074281c8b978ae4')
+})

nip06.ts

@@ -7,8 +7,8 @@ import {
 } from '@scure/bip39'
 import {HDKey} from '@scure/bip32'
 
-export function privateKeyFromSeedWords(mnemonic: string): string {
-  let root = HDKey.fromMasterSeed(mnemonicToSeedSync(mnemonic))
+export function privateKeyFromSeedWords(mnemonic: string, passphrase?: string): string {
+  let root = HDKey.fromMasterSeed(mnemonicToSeedSync(mnemonic, passphrase))
   let privateKey = root.derive(`m/44'/1237'/0'/0/0`).privateKey
   if (!privateKey) throw new Error('could not derive private key')
   return secp256k1.utils.bytesToHex(privateKey)

nip19.ts

@@ -3,6 +3,8 @@ import {bech32} from '@scure/base'
 
 import {utf8Decoder, utf8Encoder} from './utils'
 
+const Bech32MaxSize = 5000
+
 export type ProfilePointer = {
   pubkey: string // hex
   relays?: string[]
@@ -17,7 +19,7 @@ export function decode(nip19: string): {
   type: string
   data: ProfilePointer | EventPointer | string
 } {
-  let {prefix, words} = bech32.decode(nip19, 1500)
+  let {prefix, words} = bech32.decode(nip19, Bech32MaxSize)
   let data = new Uint8Array(bech32.fromWords(words))
 
   if (prefix === 'nprofile') {
@@ -87,7 +89,7 @@ export function noteEncode(hex: string): string {
 function encodeBytes(prefix: string, hex: string): string {
   let data = secp256k1.utils.hexToBytes(hex)
   let words = bech32.toWords(data)
-  return bech32.encode(prefix, words, 1500)
+  return bech32.encode(prefix, words, Bech32MaxSize)
 }
 
 export function nprofileEncode(profile: ProfilePointer): string {
@@ -96,7 +98,7 @@ export function nprofileEncode(profile: ProfilePointer): string {
     1: (profile.relays || []).map(url => utf8Encoder.encode(url))
   })
   let words = bech32.toWords(data)
-  return bech32.encode('nprofile', words, 1500)
+  return bech32.encode('nprofile', words, Bech32MaxSize)
 }
 
 export function neventEncode(event: EventPointer): string {
@@ -105,7 +107,7 @@ export function neventEncode(event: EventPointer): string {
     1: (event.relays || []).map(url => utf8Encoder.encode(url))
   })
   let words = bech32.toWords(data)
-  return bech32.encode('nevent', words, 1500)
+  return bech32.encode('nevent', words, Bech32MaxSize)
 }
 
 function encodeTLV(tlv: TLV): Uint8Array {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nostr-tools",
-  "version": "1.1.1",
+  "version": "1.1.2",
   "description": "Tools for making a Nostr client.",
   "repository": {
     "type": "git",