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(Unicode C) 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.
#include <C_CkPublicKeyW.h> void ChilkatSample(void) { BOOL success; const wchar_t *x; const wchar_t *y; HCkPublicKeyW pubkey; // 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). x = L"1ccbe91c075fc7f4f033bfa248db8fccd3565de94bbfb12f3c59ff46c271bf83"; y = L"ce4014c68811f9a21a1fdb2c0e6113e06db7ca93b7404e78dc7ccd5ca89a4ca9"; pubkey = CkPublicKeyW_Create(); success = CkPublicKeyW_LoadEcdsa(pubkey,L"secp256r1",x,y); if (success == FALSE) { wprintf(L"%s\n",CkPublicKeyW_lastErrorText(pubkey)); CkPublicKeyW_Dispose(pubkey); return; } wprintf(L"Success.\n"); CkPublicKeyW_Dispose(pubkey); } |
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