Go

secp256k1 Key Generation and Keccak-256

See more ECC Examples

Starting in v11.0.0, Chilkat supports both secp256k1 key generation and Keccak-256 directly. These algorithms are typically used for Bitcoin and Ethereum. Go

    success := false

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // Create a Fortuna PRNG and seed it with system entropy.
    // This will be our source of random data for generating the ECDSA private key.
    fortuna := chilkat.NewPrng()
    entropy := fortuna.GetEntropy(32,"base64")
    success = fortuna.AddEntropy(*entropy,"base64")

    ecc := chilkat.NewEcc()

    // Generate a random ECDSA private key on the secp256k1 curve.
    privKey := chilkat.NewPrivateKey()
    success = ecc.GenKey("secp256k1",fortuna,privKey)
    if success == false {
        fmt.Println(ecc.LastErrorText())
        fortuna.DisposePrng()
        ecc.DisposeEcc()
        privKey.DisposePrivateKey()
        return
    }

    fmt.Println("Successfully generated a sec256k1 key.")

    // Show how to compute the Keccak-256 hash in a few ways.
    sb := chilkat.NewStringBuilder()
    sb.Append("hello")

    fmt.Println("keccak-256: ", *sb.GetHash("keccak-256","hex_lower","utf-8"))

    // Output:
    // keccak-256: 1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8

    // To keccak-256 hash binary data
    bd := chilkat.NewBinData()
    bd.AppendEncoded("00010203040506","hex")

    fmt.Println("keccak-256: ", *bd.GetHash("keccak-256","hex_lower"))

    // Output:
    // keccak-256: 801560412425120fa609be232d6fa71c7f64f42aee7977267687dcc0a2f5aa63

    fortuna.DisposePrng()
    ecc.DisposeEcc()
    privKey.DisposePrivateKey()
    sb.DisposeStringBuilder()
    bd.DisposeBinData()