Use Crypto Utilities

You can work with the Private Key, Public Key, and Address methods.

Private Key

You can create a private key from:

• Seed phrase.
• Randomly generated seed phrase.
• Seed bytes.
• Randomly generated seed bytes.
• Bytes.
• Encoded string.

Create Private Key from Seed Phrase

// Necessary import.
import { keyPair } from '@waves/ts-lib-crypto';

// Specify your account's seed phrase.
const seedPhrase: string = 'PASTE A SEED PHRASE';

// Create the key pair, including the private and public keys.
const accountKeyPair = keyPair(seedPhrase);

// Print the private key.
console.log("Sender's Private Key:", accountKeyPair.privateKey);

Generate Random Seed Phrase and Private Key

// Necessary import.
import { keyPair, randomSeed } from '@waves/ts-lib-crypto';

// Generate a random seed phrase.
const seedPhrase: string = randomSeed();

// Create the key pair, including the private and public keys.
const accountKeyPair = keyPair(seedPhrase);

// Print the private key.
console.log("Seed Phrase:", seedPhrase);
console.log("Sender's Private Key:", accountKeyPair.privateKey);

Create Private Key from Seed Bytes

// Necessary import.
import { keyPair } from '@waves/ts-lib-crypto';

// Create a byte array.
const seedBytes: Uint8Array = Uint8Array.from(
  [1, 2, 3, 4, 5, 6, 7] // Array example.
);

// Convert the byte array to a string seed.
const seedString: string = new TextDecoder().decode(seedBytes);

// Create the key pair, including the private and public keys.
const accountKeyPair = keyPair(seedString);

// Print the private key.
console.log("Sender's Private Key:", accountKeyPair.privateKey);

Create Private Key from Randomly Generated Seed Bytes

// Necessary import.
import { randomBytes, blake2b, keyPair } from '@waves/ts-lib-crypto';

// Generate random seed bytes. 32 bytes by default.
const randomSeedBytes: Uint8Array = randomBytes(32);

// Derive the private key from the random seed bytes.
const hashedSeed: Uint8Array = blake2b(randomSeedBytes);

// Create the key pair from the hashed seed.
const accountKeyPair = keyPair(hashedSeed);

// Print the private key.
console.log("Sender's Private Key:", accountKeyPair.privateKey);

Create Private Key from Bytes

// Necessary import.
import { keyPair } from '@waves/ts-lib-crypto';

// Define the private key bytes.
const privateKeyBytes: Uint8Array = Uint8Array.from([
  56, 253, 37, 64, 2, 38, 78, 37, 158, 211, 233, 117, 14, 88, 20, 42,
  247, 21, 55, 87, 117, 248, 175, 77, 77, 157, 169, 233, 7, 116, 157, 236
]); // Array example.

// Create the key pair, including the private and public keys.
const accountKeyPair = keyPair(privateKeyBytes);

// Print the private key.
console.log("Sender's Private Key:", accountKeyPair.privateKey);

Create Private Key from an Encoded String

// Necessary import.
import { base58Decode, keyPair } from '@waves/ts-lib-crypto';

// Define the Base58-encoded private key string.
const base58String: string = 'A5u9Ugt2nG1rWfLkL7pzZrtkP8LgF2rD3g1XBjsF8ZfV'; // Value example.

// Decode the Base58 string to raw bytes.
const privateKeyBytes: Uint8Array = base58Decode(base58String);

// Create the key pair, including the private and public keys.
const accountKeyPair = keyPair(privateKeyBytes);

// Print the private key.
console.log("Sender's Private Key:", accountKeyPair.privateKey);

Public Key

You can create a public key from the seed's key pair:

1. Generate the private key.
2. Place the following code after the private key generation:

   // Generate the public key from the existing key pair.
   const publicKey: string = accountKeyPair.publicKey;
   
   // Print the public key.
   console.log("Sender's Public Key:", publicKey);
   

Address

You can create an address from a public key:

1. Generate the public key.

2. Place the following code after the public key generation:

   NOTE: Ensure importing the following dependencies: import { address } from '@waves/ts-lib-crypto';

   // Necessary import.
   import { address } from '@waves/ts-lib-crypto';
   
   /*
    * Specify the network chain ID:
    * - 'W' for Mainnet.
    * - 'T' for Testnet.
    */
   const chainId: string = 'T'
   
   // Generate the address from the given public key and chain ID.
   const senderAddress = address(publicKey, chainId);
   
   // Print the address.
   console.log("Sender's Address:", senderAddress);