Go

Generate an ECC Key (Public and Private)

See more ECC Examples

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

    success := false

    // 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.
    fortuna := chilkat.NewPrng()
    entropy := fortuna.GetEntropy(32,"base64")
    success = fortuna.AddEntropy(*entropy,"base64")

    ecc := chilkat.NewEcc()

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

    privKey := chilkat.NewPrivateKey()
    success = ecc.GenKey("secp256r1",fortuna,privKey)
    if success == false {
        fmt.Println(ecc.LastErrorText())
        fortuna.DisposePrng()
        ecc.DisposeEcc()
        privKey.DisposePrivateKey()
        return
    }

    // 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.)
    success = privKey.SavePkcs8EncryptedPemFile("pemPassword","qa_output/eccPrivKey.pem")
    if success != true {
        fmt.Println(privKey.LastErrorText())
    }

    // 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.)
    pubKey := chilkat.NewPublicKey()
    privKey.ToPublicKey(pubKey)

    // 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.
    bPreferPkcs1 := false
    success = pubKey.SavePemFile(bPreferPkcs1,"qa_output/eccPubKey.pem")

    // 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-----
    // 

    fmt.Println("finished.")

    fortuna.DisposePrng()
    ecc.DisposeEcc()
    privKey.DisposePrivateKey()
    pubKey.DisposePublicKey()