# Use Crypto Utilities

Before working with the Private Key, Public Key, or Address, include the following initialization snippet at the beginning of each script:

// Required imports.
using WavesLabs.Node.Transactions.Common;
using WavesLabs.Node.Transactions.Utils;
using WavesLabs.Node.Transactions;
using WavesLabs.Node.Client;

# Private Key

You can create a private key from:

Seed phrase.
Randomly generated seed phrase.
Randomly generated seed phrase with nonce 2.
Seed bytes.
Randomly generated seed bytes.
Bytes.
Encoded string.

# Create Private Key from Seed

// Create a private key from a seed phrase.
var senderPrivateKey = PrivateKey.FromSeed("PASTE_YOUR_SEED_PHRASE_HERE");

# Generate Random Seed Phrase and Private Key

// Generate a random seed phrase.
var seed = Crypto.GenerateRandomSeedPhrase();

// Create the private key from the generated seed phrase.
var senderPrivateKey = PrivateKey.FromSeed(seed);

# Generate Random Seed Phrase with Nonce 2

// Generate a random seed phrase.
var seed = Crypto.GenerateRandomSeedPhrase();

// Create the private key from the generated seed phrase with a nonce of 2.
var senderPrivateKey = PrivateKey.FromSeed(seed, 2);

# Create a Private Key from Seed Bytes

// Create a seed phrase represented as bytes.
byte[] seedBytes = { 21, 55, 87, 117, 8, 81, 77, 77, 99, 87, 23, 7, 116, 99, 20, 12, 4 };

// Generate the private key from the seed phrase bytes.
var senderPrivateKey = PrivateKey.FromSeed(seedBytes);

# Create a Private Key from Randomly Generated Seed Bytes

// Generate a random seed phrase as bytes.
byte[] randomSeedBytes = Crypto.GenerateRandomSeedBytes();

// Create the private key from the generated seed phrase bytes.
var senderPrivateKey = PrivateKey.FromSeed(randomSeedBytes);

# Create a Private Key from Bytes

// Define a byte array.
byte[] bytes = { 56, 3, 37, 64, 2, 38, 78, 37, 98, 45, 23, 117, 14, 88, 20, 42, 9, 21, 55, 87, 117, 8, 81, 77, 77, 99, 87, 23, 7, 116, 99, 20 };

// Create the private key from the byte array.
var senderPrivateKey = PrivateKey.As(bytes);

# Create a Private Key from an Encoded String

// Define a Base58 encoded string.
var base58PhraseEncoded = "PASTE_YOUR_BASE58_ENCODED_STRING_HERE";

// Create the private key from the Base58 encoded string.
var senderPrivateKey = PrivateKey.As(base58PhraseEncoded);

# Public Key

You can create a public key from a private key:

// Specify the sender private key.
var senderPrivateKey = "PASTE_THE_SENDER_PRIVATE_KEY_HERE";

// Derive the public key from the private key.
var senderPublicKey = senderPrivateKey.PublicKey;

# Address

You can create an address from a public key:

// Specify the sender public key.
var senderPublicKey = "PASTE_THE_SENDER_PUBLIC_KEY_HERE";

/* 
Get the account address from the public key.
NOTE: Ensure the specified network matches the node instance configuration:
- `MainNet`.
- Or `TestNet`.
- Or `StageNet`.
*/
var senderAddress = Address.FromPublicKey(
    ChainIds.TestNet, 
    senderPublicKey
);