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(.NET Core C#) Create PKCS1 RSA Signature with PEM Private KeySee more RSA ExamplesDemonstrates how to load a private key from a PEM file and create a PKCS1 RSA digital signature.Note: This example requires Chilkat v11.0.0 or greater.
bool success = false; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. Chilkat.PrivateKey pkey = new Chilkat.PrivateKey(); // Load the private key from an RSA PEM file: success = pkey.LoadPemFile("pvkey2_rsa.pem"); if (success == false) { Debug.WriteLine(pkey.LastErrorText); return; } Chilkat.Rsa rsa = new Chilkat.Rsa(); // Import the private key into the RSA object: success = rsa.UsePrivateKey(pkey); if (success == false) { Debug.WriteLine(rsa.LastErrorText); return; } // Get the signature as hex. rsa.EncodingMode = "hex"; string strData = "This is the string to be signed."; // Sign the string using the sha-1 hash algorithm. // Other valid choices are "md2", "md5", "sha256", // "sha384", and "sha512". string hexSig = rsa.SignStringENC(strData,"sha-1"); Debug.WriteLine(hexSig); Debug.WriteLine("Success!"); |
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