(Visual FoxPro) Generate an ECC Key

Demonstrates how to generate an ECC key.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

LOCAL loChilkatGlob
LOCAL lnSuccess
LOCAL loFortuna
LOCAL lcEntropy
LOCAL loEcc
LOCAL loPrivKey

* All Chilkat classes can be unlocked at once at the beginning of a program
* by calling UnlockBundle.  It requires a Bundle unlock code.
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Global')
loChilkatGlob = CreateObject('Chilkat.Global')
lnSuccess = loChilkatGlob.UnlockBundle("Anything for 30-day trial.")
IF (lnSuccess <> 1) THEN
    ? loChilkatGlob.LastErrorText
    RELEASE loChilkatGlob
    CANCEL
ENDIF

* Create a Fortuna PRNG and seed it with system entropy.
* This will be our source of random data for generating the ECC private key.
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Prng')
loFortuna = CreateObject('Chilkat.Prng')
lcEntropy = loFortuna.GetEntropy(32,"base64")
lnSuccess = loFortuna.AddEntropy(lcEntropy,"base64")

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Ecc')
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 = loEcc.GenEccKey("secp256r1",loFortuna)
IF (loEcc.LastMethodSuccess <> 1) THEN
    ? loEcc.LastErrorText
    RELEASE loChilkatGlob
    RELEASE loFortuna
    RELEASE loEcc
    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

RELEASE loPrivKey

? "finished."

RELEASE loChilkatGlob
RELEASE loFortuna
RELEASE loEcc