C++

Load an Ed25519 Private Key from Hex

See more Ed25519 Examples

Demonstrates how to load an Ed25519 private key from raw hex bytes.

Note: This example requires Chilkat v9.5.0.83 or greater.

C++

#include <CkPrivateKey.h>
#include <CkStringBuilder.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    CkPrivateKey privKey;

    //  We have the hexidecimal encoded bytes of the private key and public key:
    const char *privKeyHex = "d4ee72dbf913584ad5b6d8f1f769f8ad3afe7c28cbf1d4fbe097a88f44755842";
    const char *pubKeyHex = "19bf44096984cdfe8541bac167dc3b96c85086aa30b6b6cb0c5c38ad703166e1";

    //  Load these values into the Chilkat private key object:
    success = privKey.LoadEd25519(privKeyHex,pubKeyHex);
    if (success == false) {
        std::cout << privKey.lastErrorText() << "\r\n";
        return;
    }

    //  ---------------------------------------------------------------
    //  We don't actually need the public key.  If we pass an empty string for the public key,
    //  Chilkat will automatically compute it.
    CkPrivateKey privKey2;
    success = privKey2.LoadEd25519(privKeyHex,"");

    //  Let's get the public key to see that it computed the same value.
    CkStringBuilder sbPubKeyHex;
    privKeyHex = privKey2.getRawHex(sbPubKeyHex);
    std::cout << "computed public key = " << sbPubKeyHex.getAsString() << "\r\n";

    //  The output should be:
    //  computed public key = 19bf44096984cdfe8541bac167dc3b96c85086aa30b6b6cb0c5c38ad703166e1
    }