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(Mono C#) Duplicate openssl dgst -md5 -sign myKey.pem something.txt | openssl enc -base64 -ADemonstrates how to duplicate the creation of an RSA signature produced by this OpenSSL command: openssl dgst -md5 -sign myKey.pem something.txt | openssl enc -base64 -A
// 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: bool success = pkey.LoadPemFile("myKey.pem"); string pkeyXml; // Get the private key in XML format: pkeyXml = pkey.GetXml(); Chilkat.Rsa rsa = new Chilkat.Rsa(); // Import the private key into the RSA component: success = rsa.ImportPrivateKey(pkeyXml); if (success != true) { Debug.WriteLine(rsa.LastErrorText); return; } // OpenSSL uses BigEndian byte ordering: rsa.LittleEndian = false; // The resulting signature will be a Base64 string: rsa.EncodingMode = "base64"; // For simplicity, we're not loading // the data to be signed from a file. We are instead simply // using a literal string value. string strData = "This is the text to be signed."; // Hash the input using MD5, and then sign the hash: // Other valid hash algorithm choices are "md2" and "sha-1". string base64Sig = rsa.SignStringENC(strData,"md5"); Debug.WriteLine(base64Sig); Debug.WriteLine("Success!"); |
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