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(DataFlex) Load EC Public Key from X,Y Values (easier)Demonstrates how to load an ECDSA public key from X and Y values using the LoadEcdsa method introduced in Chilkat v9.5.0.85.
Use ChilkatAx-9.5.0-win32.pkg Procedure Test Boolean iSuccess String x String y Handle hoPubkey String sTemp1 // Note: This example requires Chilkat v9.5.0.85 or greater. // We have the following x and y values in hex (for an EC point on the P-256 curve). Move "1ccbe91c075fc7f4f033bfa248db8fccd3565de94bbfb12f3c59ff46c271bf83" To x Move "ce4014c68811f9a21a1fdb2c0e6113e06db7ca93b7404e78dc7ccd5ca89a4ca9" To y Get Create (RefClass(cComChilkatPublicKey)) To hoPubkey If (Not(IsComObjectCreated(hoPubkey))) Begin Send CreateComObject of hoPubkey End Get ComLoadEcdsa Of hoPubkey "secp256r1" x y To iSuccess If (iSuccess = False) Begin Get ComLastErrorText Of hoPubkey To sTemp1 Showln sTemp1 Procedure_Return End Showln "Success." End_Procedure |
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