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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. AutoIt

Local $bSuccess = 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.
$oFortuna = ObjCreate("Chilkat.Prng")
Local $sEntropy = $oFortuna.GetEntropy(32,"base64")
$bSuccess = $oFortuna.AddEntropy($sEntropy,"base64")

$oEcc = ObjCreate("Chilkat.Ecc")

; Generate a random ECDSA private key on the secp256k1 curve.
$oPrivKey = ObjCreate("Chilkat.PrivateKey")
$bSuccess = $oEcc.GenKey("secp256k1",$oFortuna,$oPrivKey)
If ($bSuccess = False) Then
    ConsoleWrite($oEcc.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Successfully generated a sec256k1 key." & @CRLF)

; Show how to compute the Keccak-256 hash in a few ways.
$oSb = ObjCreate("Chilkat.StringBuilder")
$oSb.Append("hello")

ConsoleWrite("keccak-256: " & $oSb.GetHash("keccak-256","hex_lower","utf-8") & @CRLF)

; Output:
; keccak-256: 1c8aff950685c2ed4bc3174f3472287b56d9517b9c948127319a09a7a36deac8

; To keccak-256 hash binary data
$oBd = ObjCreate("Chilkat.BinData")
$oBd.AppendEncoded("00010203040506","hex")

ConsoleWrite("keccak-256: " & $oBd.GetHash("keccak-256","hex_lower") & @CRLF)

; Output:
; keccak-256: 801560412425120fa609be232d6fa71c7f64f42aee7977267687dcc0a2f5aa63