Xbase++ Requires Chilkat v11.0.0+

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. Xbase++

LOCAL nSuccess
LOCAL oFortuna
LOCAL cEntropy
LOCAL oEcc
LOCAL oPrivKey
LOCAL oSb
LOCAL oBd

nSuccess := 0

//  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 := CreateObject("Chilkat.Prng")
cEntropy := oFortuna:GetEntropy(32, "base64")
nSuccess := oFortuna:AddEntropy(cEntropy, "base64")

oEcc := CreateObject("Chilkat.Ecc")

//  Generate a random ECDSA private key on the secp256k1 curve.
oPrivKey := CreateObject("Chilkat.PrivateKey")
nSuccess := oEcc:GenKey("secp256k1", oFortuna, oPrivKey)
IF (nSuccess == 0)
    ? oEcc:LastErrorText
    oFortuna:destroy()
    oEcc:destroy()
    oPrivKey:destroy()
    RETURN
ENDIF

? "Successfully generated a sec256k1 key."

//  Show how to compute the Keccak-256 hash in a few ways.
oSb := CreateObject("Chilkat.StringBuilder")
oSb:Append("hello")

? "keccak-256: " + oSb:GetHash("keccak-256", "hex_lower", "utf-8")

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

//  To keccak-256 hash binary data
oBd := CreateObject("Chilkat.BinData")
oBd:AppendEncoded("00010203040506", "hex")

? "keccak-256: " + oBd:GetHash("keccak-256", "hex_lower")

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

oFortuna:destroy()
oEcc:destroy()
oPrivKey:destroy()
oSb:destroy()
oBd:destroy()