Chilkat Examples

ChilkatHOMEAndroid™Classic ASPCC++C#Mono C#.NET Core C#C# UWP/WinRTDataFlexDelphi ActiveXDelphi DLLVisual FoxProJavaLianjaMFCObjective-CPerlPHP ActiveXPHP ExtensionPowerBuilderPowerShellPureBasicCkPythonChilkat2-PythonRubySQL ServerSwift 2Swift 3/4TclUnicode CUnicode C++Visual Basic 6.0VB.NETVB.NET UWP/WinRTVBScriptXojo PluginNode.jsExcelGo

Objective-C Examples

Web API Categories

ASN.1
Amazon Glacier
Amazon S3
Amazon S3 (new)
Amazon SES
Amazon SNS
Amazon SQS
Async
Azure Cloud Storage
Azure Service Bus
Base64
Bounced Email
Box
CAdES
CSR
CSV
Certificates
Compression
DKIM / DomainKey
DSA
Diffie-Hellman
Digital Signatures
Dropbox
Dynamics CRM
ECC
Email Object
Encryption
FTP
FileAccess
Firebase
GMail REST API
Geolocation
Google APIs
Google Calendar
Google Cloud Storage
Google Drive
Google Photos
Google Sheets
Google Tasks
Gzip
HTML-to-XML/Text

HTTP
HTTP Misc
IMAP
JSON
JSON Web Encryption (JWE)
JSON Web Signatures (JWS)
JSON Web Token (JWT)
Java KeyStore (JKS)
MHT / HTML Email
MIME
Microsoft Graph
NTLM
OAuth1
OAuth2
OneDrive
OpenSSL
Outlook
PEM
PFX/P12
POP3
PRNG
REST
REST Misc
RSA
SCP
SFTP
SMTP
SSH
SSH Key
SSH Tunnel
SharePoint
Socket/SSL/TLS
Spider
Stream
Tar Archive
Upload
WebSocket
XAdES
XML
XML Digital Signatures
XMP
Zip
curl

 

 

 

(Objective-C) SFTP Auth Failure Reason (AuthenticatePwPk)

This example demonstrates how to determine the failure reason for the case where both a password and private key are required for authentication. If authentication fails, was it because of an invalid private key, or an invalid password?

Note: This example requires a feature introduced in Chilkat v9.5.0.79

Chilkat Objective-C Library Downloads

MAC OS X (Cocoa) Libs

iOS Libs

#import <CkoSshKey.h>
#import <CkoSFtp.h>
#import <CkoJsonObject.h>

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// Load a private key to be used for SSH authentication.
CkoSshKey *key = [[CkoSshKey alloc] init];
key.Password = @"key_password";

BOOL success = [key FromOpenSshPrivateKey: [key LoadText: @"qa_data/my_private_key_file"]];
if (success != YES) {
    NSLog(@"%@",key.LastErrorText);
    return;
}

CkoSFtp *sftp = [[CkoSFtp alloc] init];

success = [sftp Connect: @"sftp.example.com" port: [NSNumber numberWithInt: 22]];
if (success != YES) {
    NSLog(@"%@",sftp.LastErrorText);
    return;
}

// Authenticate using both a password and private key.
success = [sftp AuthenticatePwPk: @"myLogin" password: @"myPassword" privateKey: key];
if (success == YES) {
    NSLog(@"%@",@"Authentication is successful!");
    return;
}

// If we get here, it means the authentication failed.
// To find out why, get the LastJsonData
// This is a feature added in Chilkat v9.5.0.79

CkoJsonObject *json = [sftp LastJsonData];
json.EmitCompact = NO;

// This is the JSON if the key is correct, but the password is incorrect:

// {
//   "public_key_type": "rsa",
//   "partialAuthResult": "publickey success. continue to authenticate with password...",
//   "authResult": "failed",
//   "authFailReason": "Password is incorrect"
// }

// This is the JSON if the key is incorrect.  We won't know if the password is also incorrect until
// the key is made correct so that authentication proceeds to check the password.

// {
//   "public_key_type": "rsa",
//   "authResult": "failed",
//   "authFailReason": "Key is incorrect"
// }

// To get the authResult anbd authFailReason:
NSLog(@"%@%@",@"authResult: ",[json StringOf: @"authResult"]);
NSLog(@"%@%@",@"authFailReason: ",[json StringOf: @"authFailReason"]);
 

© 2000-2019 Chilkat Software, Inc. All Rights Reserved.