Chilkat HOME .NET Core C# Android™ AutoIt C C# C++ Chilkat2-Python CkPython Classic ASP DataFlex Delphi ActiveX Delphi DLL Go Java Lianja Mono C# Node.js Objective-C PHP ActiveX PHP Extension Perl PowerBuilder PowerShell PureBasic Ruby SQL Server Swift 2 Swift 3,4,5... Tcl Unicode C Unicode C++ VB.NET VBScript Visual Basic 6.0 Visual FoxPro Xojo Plugin
(PHP ActiveX) Ed25519ph Sign and VerifySee more Ed25519 ExamplesDemonstrates how to create an Ed25519ph signature, and then to verify it. Note: This example requires Chilkat v9.5.0.91 or greater.
<?php // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // Use the following test vector from https://www.rfc-editor.org/rfc/rfc8032#page-30 // -----TEST abc // // ALGORITHM: // Ed25519ph // // SECRET KEY: // 833fe62409237b9d62ec77587520911e // 9a759cec1d19755b7da901b96dca3d42 // // PUBLIC KEY: // ec172b93ad5e563bf4932c70e1245034 // c35467ef2efd4d64ebf819683467e2bf // // MESSAGE (length 3 bytes): // 616263 // // SIGNATURE: // 98a70222f0b8121aa9d30f813d683f80 // 9e462b469c7ff87639499bb94e6dae41 // 31f85042463c2a355a2003d062adf5aa // a10b8c61e636062aaad11c2a26083406 $privKeyHex = '833fe62409237b9d62ec77587520911e9a759cec1d19755b7da901b96dca3d42'; $pubKeyHex = 'ec172b93ad5e563bf4932c70e1245034c35467ef2efd4d64ebf819683467e2bf'; // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.PrivateKey') $privKey = new COM("Chilkat.PrivateKey"); $success = $privKey->LoadEd25519($privKeyHex,$pubKeyHex); if ($success == 0) { print $privKey->LastErrorText . "\n"; exit; } // The data to be signed... // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.BinData') $bd = new COM("Chilkat.BinData"); $bd->AppendEncoded('616263','hex'); // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.EdDSA') $eddsa = new COM("Chilkat.EdDSA"); // Indicate we want the Ed25519ph instance. $eddsa->Algorithm = 'Ed25519ph'; $hexSig = $eddsa->signBdENC($bd,'hexlower',$privKey); print 'signature = ' . $hexSig . "\n"; // The expected output is: 98a70222f0b8121aa9d30f813d683f80.... // Verify the signature.. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.PublicKey') $pubKey = new COM("Chilkat.PublicKey"); $success = $pubKey->LoadEd25519($pubKeyHex); if ($success == 0) { print $pubKey->LastErrorText . "\n"; exit; } $bVerified = $eddsa->VerifyBdENC($bd,$hexSig,'hexlower',$pubKey); if ($bVerified == 0) { print $eddsa->LastErrorText . "\n"; print 'Failed to verify the signature.' . "\n"; exit; } print 'The Ed25519ph signature is verified!' . "\n"; ?> |
© 2000-2024 Chilkat Software, Inc. All Rights Reserved.