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(Delphi ActiveX) RSA Import Public Key from Certificate PEMUses a certificate's public key for RSA encryption. The public key from the certificate .pem file is used. Note: This example requires Chilkat v11.0.0 or greater.
uses Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB; ... procedure TForm1.Button1Click(Sender: TObject); var success: Integer; cert: TChilkatCert; pubKey: TPublicKey; rsa: TChilkatRsa; encryptedStr: WideString; begin success := 0; cert := TChilkatCert.Create(Self); success := cert.LoadFromFile('qa_data/pem/mf_public_rsa.pem'); if (success = 0) then begin Memo1.Lines.Add(cert.LastErrorText); Exit; end; pubKey := TPublicKey.Create(Self); cert.GetPublicKey(pubKey.ControlInterface); rsa := TChilkatRsa.Create(Self); rsa.UsePublicKey(pubKey.ControlInterface); rsa.EncodingMode := 'base64'; encryptedStr := rsa.EncryptStringENC('hello',0); Memo1.Lines.Add('encrypted string = ' + encryptedStr); end; |
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