Zig

Use PuTTY Key for SSH Tunnel (PPK Private Key)

See more SSH Tunnel Examples

Demonstrates how to authenticate with a username + .ppk PuTTY private key w/ SSH Tunnel. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

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

    const tunnel = try chilkat.SshTunnel.init();
    defer tunnel.deinit();

    // Load a .ppk PuTTY private key.
    const putty_key = try chilkat.SshKey.init();
    defer putty_key.deinit();
    const ppk_text = try putty_key.loadText(alloc, "qa_data/ppk/putty_private_secret.ppk");

    // The ppkText contains this content:

    //     PuTTY-User-Key-File-2: ssh-rsa
    //     Encryption: aes256-cbc
    //     Comment: rsa-key-20170126
    //     Public-Lines: 6
    //     AAAAB3NzaC1yc2EAAAABJQAAAQEAx+52s7vvaZ8rT2UdFZWlSUVDHDQ+5ZRFvgRW
    //     6nm2sO1c9WqNg7u2PQL4jeKSDX2XWcMnpleALz2x8Rr4rMy5E1iZzvWov8VtFd8l
    //     fa9HOkgEeJB3VFuYR3NlnD3eyCoYJYPVpHJHrIeui2WZs5vQ76HDe+th8+z5Ald4
    //     zPw3p2c6ZJpBrkSBM67hWokoBDi23c7NhszDHhJBrv+B98cQxnagI1PUKqN7E8Vg
    //     bNtBI8beIMHyI69up9G1AXSEi0cGIjYNx9RNUPau1mRk/SvfqxgWkAjM005lj7hc
    //     bOsjbdKK3T2NtrKTaYjEiXlEXcj1iGuApsD/m73pYaEJB3Nd7w==
    //     Private-Lines: 14
    //     MoaDbq0owouN/7Z9Pga0favDhM2bSEgMErJBxdDmNUXIVVcUoLiD/Ps1RA+BeBBX
    //     wxqKUt9PqLy/pnafPR/i2xjJiQtQ0CWkPxND16Gi1dqLzmbQYYl1ev4+LzuG0zNX
    //     HDGMvRiwagY7mY+F1tUjBYfOL6z8XHw4m40YcY1QorOO+0MMzAVT5Hkg8YyXW209
    //     B/V/LRADFMVA2BlL39y11cb5ZpFStPH/waYUMY+2w1ZmJZ7dcRoMjuKmY+YE/tUx
    //     n9X3P0qTNSbw6e6sMG3Dhr1vfoJUQWApUliD6GpUiCeIvXBcVqG8Vsfq9XADsPl0
    //     +nFAwjSZflywcB7/FwhGb7q5UmcJK06SzoMl7Og5e3g7NCs3yNNQIv+qCpDjhxrA
    //     hpT03mbipu7OXCZDeUwUhMGJAmYHE5iqm1rPCsSVbaMgpxhCWf01Cx4gLx3aMvn4
    //     MdylA31GuL3wSxcWTslrOI8+449lZN/qZEnGEZkYTrnlu123jTqsAWMMtuHSz2Ig
    //     6GA89oTdlppkNflhNH3OJ85kMUrc3p/ZBMdndz8jTDTljmJjHR5oNMoShFof115A
    //     nWjUHqBwCgcubLYyH3afDvBTOhtl0tJ9Oby0wJlOAGnCXiPSDbF/y7J7xml/PS9t
    //     XlSVNxtAY15NDO6Fp96sBVfKuJsfJ90PzdBom4ikIuf7sMwtElrHHLuYfcXJQYLp
    //     G5jBmqDgnirosVPEBIxlxFzz/HCRmdU+tsYg46gqI4R5UpKUe8WSaJoZkDGsrqhm
    //     e+1SJaBuafR4v2bx/bV414Hg7LGQosK2S3crxH4UgZl+g02vWznZfBH+9CmHvKDR
    //     AxfcKOTzsaILKJtQPV81lmJ45sARYMcB5jMiE4kBg56hiXouChsvKkm55WVcW1E+
    //     Private-MAC: 17512c9f7582c1d9c3ae2b01b4d67a6b1dbd1d0e

    // "secret" is the actual password for the above PPK.
    putty_key.setPassword("secret");
    putty_key.fromPuttyPrivateKey(ppk_text) catch {
        std.debug.print("{s}\n", .{try putty_key.getLastErrorText(alloc)});
        return;
    };

    const ssh_hostname = "sftp.example.com";
    const ssh_port = 22;

    // Connect to an SSH server
    tunnel.connect(ssh_hostname, ssh_port) catch {
        std.debug.print("{s}\n", .{try tunnel.getLastErrorText(alloc)});
        return;
    };

    // Authenticate with the SSH server using a username + private key.
    // (The private key serves as the password.  The username identifies
    // the SSH user account on the server.)
    tunnel.authenticatePk("mySshLogin", putty_key) catch {
        std.debug.print("{s}\n", .{try tunnel.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("OK, the connection and authentication with the SSH server is completed.\n", .{});

    // This example is only to show the connection + authentication using a PuTTY private key...
}