(PowerBuilder) Generate an ECC Key (Public and Private)

Demonstrates how to generate an ECC key and save both public and private parts.

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

integer li_rc
oleobject loo_Fortuna
string ls_Entropy
integer li_Success
oleobject loo_Ecc
oleobject loo_PrivKey
oleobject loo_PubKey
integer li_BPreferPkcs1

// 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 ECC private key.
loo_Fortuna = create oleobject
li_rc = loo_Fortuna.ConnectToNewObject("Chilkat_9_5_0.Prng")
if li_rc < 0 then
    destroy loo_Fortuna
    MessageBox("Error","Connecting to COM object failed")
    return
end if
ls_Entropy = loo_Fortuna.GetEntropy(32,"base64")
li_Success = loo_Fortuna.AddEntropy(ls_Entropy,"base64")

loo_Ecc = create oleobject
li_rc = loo_Ecc.ConnectToNewObject("Chilkat_9_5_0.Ecc")

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

loo_PrivKey = loo_Ecc.GenEccKey("secp256r1",loo_Fortuna)
if loo_Ecc.LastMethodSuccess = 0 then
    Write-Debug loo_Ecc.LastErrorText
    destroy loo_Fortuna
    destroy loo_Ecc
    return
end if

// 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.)
li_Success = loo_PrivKey.SavePkcs8EncryptedPemFile("pemPassword","qa_output/eccPrivKey.pem")
if li_Success <> 1 then
    Write-Debug loo_PrivKey.LastErrorText
end if

destroy loo_PrivKey

// The private key PEM looks like this:

// 	-----BEGIN ENCRYPTED PRIVATE KEY-----
// 	MIHFMEAGCSqGSIb3DQEFDTAzMBsGCSqGSIb3DQEFDDAOBAhUmn+1/lwCIwICCAAw
// 	FAYIKoZIhvcNAwcECPlyNXAXZO+oBIGAIvxvTENXJWbrCwSjh0QNxLecBotUpfI5
// 	auOonLmwVMyt1ahMmNyVo/D+pnKQSE41Fg8fApM0DCDKZUOVCCcK1qirIsMPQkGp
// 	klPJbvrQRVYgzBtU31uNB5y2wqhrIeepal1HXBvbkUK0nfJMbcdz/XAEIQu2HhTD
// 	t6LMScPQld4=
// 	-----END ENCRYPTED PRIVATE KEY-----

// Now get the public key part from the private key.
// (A public key is actually a subset of the private key.)
loo_PubKey = loo_PrivKey.GetPublicKey()

// Save the public key to a PEM file.
// (The public key can be saved in a variety of different formats. See the online reference documentation.)
// For ECC keys, the 1st argument (bPreferPkcs1) is ignored and unused.
li_BPreferPkcs1 = 0
li_Success = loo_PubKey.SavePemFile(li_BPreferPkcs1,"qa_output/eccPubKey.pem")

destroy loo_PubKey

// The public key PEM looks like this:

// 	-----BEGIN PUBLIC KEY-----
// 	MIIBSzCCAQMGByqGSM49AgEwgfcCAQEwLAYHKoZIzj0BAQIhAP////8AAAABAAAA
// 	AAAAAAAAAAAA////////////////MFsEIP////8AAAABAAAAAAAAAAAAAAAA////
// 	///////////8BCBaxjXYqjqT57PrvVV2mIa8ZR0GsMxTsPY7zjw+J9JgSwMVAMSd
// 	NgiG5wSTamZ44ROdJreBn36QBEEEaxfR8uEsQkf4vOblY6RA8ncDfYEt6zOg9KE5
// 	RdiYwpZP40Li/hp/m47n60p8D54WK84zV2sxXs7LtkBoN79R9QIhAP////8AAAAA
// 	//////////+85vqtpxeehPO5ysL8YyVRAgEBA0IABGdOH8uM6SfX3mdV+TR0mWp2
// 	gfVRPlxWxwhOiowuNByBxmQz7ZR4CJY1XcN2zkUo5pzW73ZhGwgd2XTOvqPqG40=
// 	-----END PUBLIC KEY-----
// 

Write-Debug "finished."


destroy loo_Fortuna
destroy loo_Ecc