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(PureBasic) Generate an ECDSA KeySee more ECC ExamplesDemonstrates how to generate an ECDSA key.Note: This example requires Chilkat v11.0.0 or greater.
IncludeFile "CkEcc.pb" IncludeFile "CkPrng.pb" IncludeFile "CkPrivateKey.pb" Procedure ChilkatExample() ; 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. fortuna.i = CkPrng::ckCreate() If fortuna.i = 0 Debug "Failed to create object." ProcedureReturn EndIf entropy.s = CkPrng::ckGetEntropy(fortuna,32,"base64") success.i = CkPrng::ckAddEntropy(fortuna,entropy,"base64") ecc.i = CkEcc::ckCreate() If ecc.i = 0 Debug "Failed to create object." ProcedureReturn EndIf ; Generate a random ECC private key on the secp256r1 curve. ; Chilkat also supports other curves, such as secp384r1, secp521r1, and secp256k1. privKey.i = CkPrivateKey::ckCreate() If privKey.i = 0 Debug "Failed to create object." ProcedureReturn EndIf success = CkEcc::ckGenKey(ecc,"secp256r1",fortuna,privKey) If success <> 1 Debug CkEcc::ckLastErrorText(ecc) CkPrng::ckDispose(fortuna) CkEcc::ckDispose(ecc) CkPrivateKey::ckDispose(privKey) ProcedureReturn EndIf Debug CkPrivateKey::ckGetXml(privKey) ; 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 = CkPrivateKey::ckSavePkcs8EncryptedPemFile(privKey,"pemPassword","myPemFiles/eccKey123.pem") If success <> 1 Debug CkPrivateKey::ckLastErrorText(privKey) EndIf Debug "finished." CkPrng::ckDispose(fortuna) CkEcc::ckDispose(ecc) CkPrivateKey::ckDispose(privKey) ProcedureReturn EndProcedure |
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