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
(DataFlex) SSH Tunnel Set Allowed AlgorithmsSee more SSH Tunnel ExamplesDemonstrates how to explicitly set the algorithms allowed in the SSH connection protocol for SSH tunneling. Note: This example requires Chilkat v9.5.0.99 or greater.
Use ChilkatAx-9.5.0-win32.pkg Procedure Test Boolean iSuccess Handle hoSsh_tunnel Variant vJson Handle hoJson String sAllowed_kex String sAllowed_hostKey String sAllowed_cipher String sAllowed_mac Integer iPort String sTemp1 // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. Get Create (RefClass(cComChilkatSshTunnel)) To hoSsh_tunnel If (Not(IsComObjectCreated(hoSsh_tunnel))) Begin Send CreateComObject of hoSsh_tunnel End Get Create (RefClass(cComChilkatJsonObject)) To hoJson If (Not(IsComObjectCreated(hoJson))) Begin Send CreateComObject of hoJson End // Here are the algorithms supported by Chilkat at the time this example was written (14-June-2024) // --------------------------- // SSH Key-Exchange Algorithms // --------------------------- // curve25519-sha256 // curve25519-sha256@libssh.org // ecdh-sha2-nistp256 // ecdh-sha2-nistp384 // ecdh-sha2-nistp521 // diffie-hellman-group14-sha256 // diffie-hellman-group16-sha512 // diffie-hellman-group18-sha512 // diffie-hellman-group-exchange-sha256 // diffie-hellman-group1-sha1 // diffie-hellman-group14-sha1 // diffie-hellman-group-exchange-sha1 // --------------------------- // SSH Host Key Algorithms // --------------------------- // ssh-ed25519 // ecdsa-sha2-nistp256 // ecdsa-sha2-nistp384 // ecdsa-sha2-nistp521 // rsa-sha2-256 // rsa-sha2-512 // ssh-rsa // ssh-dss // --------------------------- // SSH Cipher Algorithms // --------------------------- // chacha20-poly1305@openssh.com // aes128-ctr // aes256-ctr // aes192-ctr // aes128-cbc // aes256-cbc // aes192-cbc // aes128-gcm@openssh.com // aes256-gcm@openssh.com // twofish256-cbc // twofish128-cbc // blowfish-cbc // --------------------------- // SSH MAC Algorithms // --------------------------- // hmac-sha2-256 // hmac-sha2-512 // hmac-sha2-256-etm@openssh.com // hmac-sha2-512-etm@openssh.com // hmac-sha1-etm@openssh.com // hmac-sha1 // hmac-ripemd160 // hmac-sha1-96 // hmac-md5 // Specify the allowed key-exchange, host-key, cipher (i.e. encryption), and mac (i.e. hash) algorithms allowed, in the order of preference. // ------------------------------------------------------------------------------------------------------------------------------------------- // Note: You typically should NOT explicitly set allowed algorithms. // By default, Chilkat orders algorithms according to best practices, and pays attention to vulnerabilities such as the "Terrapin Attack". // Hard-coding algorthims can make your application brittle and prone to breaking over a long period of time, // if a server (at some point in the future) changes its allowed algorithms, or if you connect to a different server, // such that the client (Chilkat) and server cannot find a set of mutually agreed-upon algorithms. // ------------------------------------------------------------------------------------------------------------------------------------------- Move "curve25519-sha256@libssh.org,ecdh-sha2-nistp256" To sAllowed_kex Move "ssh-ed25519,ecdsa-sha2-nistp256" To sAllowed_hostKey Move "chacha20-poly1305@openssh.com,aes256-ctr" To sAllowed_cipher Move "hmac-sha2-256,hmac-sha2-512" To sAllowed_mac Get ComUpdateString Of hoJson "kex" sAllowed_kex To iSuccess Get ComUpdateString Of hoJson "hostKey" sAllowed_hostKey To iSuccess Get ComUpdateString Of hoJson "cipher" sAllowed_cipher To iSuccess Get ComUpdateString Of hoJson "mac" sAllowed_mac To iSuccess Get pvComObject of hoJson to vJson Get ComSetAllowedAlgorithms Of hoSsh_tunnel vJson To iSuccess Move 22 To iPort Get ComConnect Of hoSsh_tunnel "example.com" iPort To iSuccess If (iSuccess <> True) Begin Get ComLastErrorText Of hoSsh_tunnel To sTemp1 Showln sTemp1 Procedure_Return End Showln "Connected." // .... // .... End_Procedure |
© 2000-2024 Chilkat Software, Inc. All Rights Reserved.