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(Unicode C) SSH Public Key AuthenticationDemonstrates how to authenticate with an SSH server using public key authentication.
#include <C_CkSshW.h> #include <C_CkSshKeyW.h> void ChilkatSample(void) { HCkSshW ssh; const wchar_t *hostname; int port; BOOL success; HCkSshKeyW key; const wchar_t *privKey; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. ssh = CkSshW_Create(); // Set some timeouts, in milliseconds: CkSshW_putConnectTimeoutMs(ssh,5000); CkSshW_putIdleTimeoutMs(ssh,15000); // Connect to the SSH server. // The standard SSH port = 22 // The hostname may be a hostname or IP address. hostname = L"sftp.example.com"; port = 22; success = CkSshW_Connect(ssh,hostname,port); if (success != TRUE) { wprintf(L"%s\n",CkSshW_lastErrorText(ssh)); CkSshW_Dispose(ssh); return; } key = CkSshKeyW_Create(); // Read the PEM file into a string variable: // (This does not load the PEM file into the key. The LoadText // method is a convenience method for loading the full contents of ANY text // file into a string variable.) privKey = CkSshKeyW_loadText(key,L"myPrivateKey.pem"); if (CkSshKeyW_getLastMethodSuccess(key) != TRUE) { wprintf(L"%s\n",CkSshKeyW_lastErrorText(key)); CkSshW_Dispose(ssh); CkSshKeyW_Dispose(key); return; } // Load a private key from a PEM string: // (Private keys may be loaded from OpenSSH and Putty formats. // Both encrypted and unencrypted private key file formats // are supported. This example loads an unencrypted private // key in OpenSSH format. PuTTY keys typically use the .ppk // file extension, while OpenSSH keys use the PEM format. // (For PuTTY keys, call FromPuttyPrivateKey instead.) success = CkSshKeyW_FromOpenSshPrivateKey(key,privKey); if (success != TRUE) { wprintf(L"%s\n",CkSshKeyW_lastErrorText(key)); CkSshW_Dispose(ssh); CkSshKeyW_Dispose(key); return; } // Authenticate with the SSH server using the login and // private key. (The corresponding public key should've // been installed on the SSH server beforehand.) success = CkSshW_AuthenticatePk(ssh,L"myLogin",key); if (success != TRUE) { wprintf(L"%s\n",CkSshW_lastErrorText(ssh)); CkSshW_Dispose(ssh); CkSshKeyW_Dispose(key); return; } wprintf(L"%s\n",CkSshW_lastErrorText(ssh)); wprintf(L"Public-Key Authentication Successful!\n"); CkSshW_Dispose(ssh); CkSshKeyW_Dispose(key); } |
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