Visual FoxPro

Generate an ECDSA Key

See more ECC Examples

Demonstrates how to generate an ECDSA key. Visual FoxPro

LOCAL lnSuccess
LOCAL loFortuna
LOCAL lcEntropy
LOCAL loEcc
LOCAL loPrivKey

lnSuccess = 0

* This 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 ECC private key.
loFortuna = CreateObject('Chilkat.Prng')
lcEntropy = loFortuna.GetEntropy(32,"base64")
lnSuccess = loFortuna.AddEntropy(lcEntropy,"base64")

loEcc = CreateObject('Chilkat.Ecc')

* Generate a random ECC private key on the secp256r1 curve.
* Chilkat also supports other curves, such as secp384r1, secp521r1, and secp256k1.

loPrivKey = CreateObject('Chilkat.PrivateKey')
lnSuccess = loEcc.GenKey("secp256r1",loFortuna,loPrivKey)
IF (lnSuccess = 0) THEN
    ? loEcc.LastErrorText
    RELEASE loFortuna
    RELEASE loEcc
    RELEASE loPrivKey
    CANCEL
ENDIF

? loPrivKey.GetXml()

* Save the private key to PKCS8 encrypted PEM
* (The private key can be saved in a variety of different formats. See the online reference documentation.)
lnSuccess = loPrivKey.SavePkcs8EncryptedPemFile("pemPassword","myPemFiles/eccKey123.pem")
IF (lnSuccess <> 1) THEN
    ? loPrivKey.LastErrorText
ENDIF

? "finished."

RELEASE loFortuna
RELEASE loEcc
RELEASE loPrivKey