(DataFlex) Generate an ECC Key

Demonstrates how to generate an ECC key.

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

Use ChilkatAx-win32.pkg

Procedure Test
    Handle hoChilkatGlob
    Boolean iSuccess
    Variant vFortuna
    Handle hoFortuna
    String sEntropy
    Handle hoEcc
    Variant vPrivKey
    Handle hoPrivKey
    String sTemp1
    Boolean bTemp1

    // All Chilkat classes can be unlocked at once at the beginning of a program
    // by calling UnlockBundle.  It requires a Bundle unlock code.
    Get Create (RefClass(cComChilkatGlobal)) To hoChilkatGlob
    If (Not(IsComObjectCreated(hoChilkatGlob))) Begin
        Send CreateComObject of hoChilkatGlob
    End
    Get ComUnlockBundle Of hoChilkatGlob "Anything for 30-day trial." To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoChilkatGlob To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Create a Fortuna PRNG and seed it with system entropy.
    // This will be our source of random data for generating the ECC private key.
    Get Create (RefClass(cComChilkatPrng)) To hoFortuna
    If (Not(IsComObjectCreated(hoFortuna))) Begin
        Send CreateComObject of hoFortuna
    End
    Get ComGetEntropy Of hoFortuna 32 "base64" To sEntropy
    Get ComAddEntropy Of hoFortuna sEntropy "base64" To iSuccess

    Get Create (RefClass(cComChilkatEcc)) To hoEcc
    If (Not(IsComObjectCreated(hoEcc))) Begin
        Send CreateComObject of hoEcc
    End

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

    Get pvComObject of hoFortuna to vFortuna
    Get ComGenEccKey Of hoEcc "secp256r1" vFortuna To vPrivKey
    If (IsComObject(vPrivKey)) Begin
        Get Create (RefClass(cComChilkatPrivateKey)) To hoPrivKey
        Set pvComObject Of hoPrivKey To vPrivKey
    End
    Get ComLastMethodSuccess Of hoEcc To bTemp1
    If (bTemp1 <> True) Begin
        Get ComLastErrorText Of hoEcc To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComGetXml Of hoPrivKey To sTemp1
    Showln sTemp1

    // 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.)
    Get ComSavePkcs8EncryptedPemFile Of hoPrivKey "pemPassword" "myPemFiles/eccKey123.pem" To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
    End

    Send Destroy of hoPrivKey

    Showln "finished."


End_Procedure