SFTP: How to authenticate using private key which is not stored in file system?

Question

I'd like to authenticate to an SFTP server using my private key. The private key is not stored in the filesystem.

Answer 1

Following code shows how:

// create client and connect 
Sftp client = new Sftp();
client.Connect(hostname);

// instead of loading it from a disk file, load the private key from a byte array
//SshPrivateKey privateKey = new SshPrivateKey("key_rsa.pem", "password");

byte[] privateKeyData = YourMethodForObtainingPrivateKey();    
SshPrivateKey privateKey = new SshPrivateKey(privateKeyData, "password");

// authenticate 
client.Login(username, privateKey);

// ...