Objective-C

Load a PuTTY Public Key

See more SSH Key Examples

Demonstrates how to load a PuTTY public key. Objective-C

#import <CkoSshKey.h>
#import <NSString.h>

BOOL success = NO;

//  Load a PuTTY public key.
CkoSshKey *puttyKey = [[CkoSshKey alloc] init];
NSString *pubKeyText = [puttyKey LoadText: @"qa_data/ppk/putty_public.pem"];

//  The pubKeyText contains this content:

//  	---- BEGIN SSH2 PUBLIC KEY ----
//  	Comment: "rsa-key-20170126"
//  	AAAAB3NzaC1yc2EAAAABJQAAAQEAx+52s7vvaZ8rT2UdFZWlSUVDHDQ+5ZRFvgRW
//  	6nm2sO1c9WqNg7u2PQL4jeKSDX2XWcMnpleALz2x8Rr4rMy5E1iZzvWov8VtFd8l
//  	fa9HOkgEeJB3VFuYR3NlnD3eyCoYJYPVpHJHrIeui2WZs5vQ76HDe+th8+z5Ald4
//  	zPw3p2c6ZJpBrkSBM67hWokoBDi23c7NhszDHhJBrv+B98cQxnagI1PUKqN7E8Vg
//  	bNtBI8beIMHyI69up9G1AXSEi0cGIjYNx9RNUPau1mRk/SvfqxgWkAjM005lj7hc
//  	bOsjbdKK3T2NtrKTaYjEiXlEXcj1iGuApsD/m73pYaEJB3Nd7w==
//  	---- END SSH2 PUBLIC KEY ----

success = [puttyKey FromRfc4716PublicKey: pubKeyText];
if (success != YES) {
    NSLog(@"%@",puttyKey.LastErrorText);
    return;
}

//  If desired, convert to other public key formats:
NSString *openSshPubKeyStr = [puttyKey ToOpenSshPublicKey];
NSLog(@"%@",openSshPubKeyStr);

//  openSshPubKeyStr contains:
//  ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAx+52s7vvaZ8rT2UdFZWlSUVDHDQ+5ZRFvgRW6nm2sO1c9WqNg7u2PQL4jeKSDX2XWcMnpleALz2x8Rr4rMy5E1iZzvWov8VtFd8lfa9HOkgEeJB3VFuYR3NlnD3eyCoYJYPVpHJHrIeui2WZs5vQ76HDe+th8+z5Ald4zPw3p2c6ZJpBrkSBM67hWokoBDi23c7NhszDHhJBrv+B98cQxnagI1PUKqN7E8VgbNtBI8beIMHyI69up9G1AXSEi0cGIjYNx9RNUPau1mRk/SvfqxgWkAjM005lj7hcbOsjbdKK3T2NtrKTaYjEiXlEXcj1iGuApsD/m73pYaEJB3Nd7w== rsa-key-20170126

//  Convert to an XML format:
NSString *xmlPubKeyStr = [puttyKey ToXml];
NSLog(@"%@",xmlPubKeyStr);

//  xmlPubKeyStr contains:
//  <RSAPublicKey>
//      <Modulus>x+52s7vvaZ8rT2UdFZWlSUVDHDQ+5ZRFvgRW6nm2sO1c9WqNg7u2PQL4jeKSDX2XWcMnpleALz2x8Rr4rMy5E1iZzvWov8VtFd8lfa9HOkgEeJB3VFuYR3NlnD3eyCoYJYPVpHJHrIeui2WZs5vQ76HDe+th8+z5Ald4zPw3p2c6ZJpBrkSBM67hWokoBDi23c7NhszDHhJBrv+B98cQxnagI1PUKqN7E8VgbNtBI8beIMHyI69up9G1AXSEi0cGIjYNx9RNUPau1mRk/SvfqxgWkAjM005lj7hcbOsjbdKK3T2NtrKTaYjEiXlEXcj1iGuApsD/m73pYaEJB3Nd7w==</Modulus>
//      <Exponent>JQ==</Exponent>
//  </RSAPublicKey>
//  
//