Zig Requires Chilkat v11.0.0+

SFTP Authentication using an SSH Certificate

See more SFTP Examples

Demonstrates how to SFTP authenticate using an SSH certificate. 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 sb_ssh_cert = try chilkat.StringBuilder.init();
    defer sb_ssh_cert.deinit();
    sb_ssh_cert.loadFile("qa_data/sshCert/user_ecdsa_key-cert.pub", "utf-8") catch {
        std.debug.print("Failed to load user_ecdsa_key-cert.pub\n", .{});
        return;
    };

    const sb_priv_key = try chilkat.StringBuilder.init();
    defer sb_priv_key.deinit();
    sb_priv_key.loadFile("qa_data/sshKeys/user_ecdsa_key", "utf-8") catch {
        std.debug.print("Failed to load user_ecdsa_key\n", .{});
        return;
    };

    const key = try chilkat.SshKey.init();
    defer key.deinit();
    // Provide the password if the user_ecdsa_key is stored in an encrypted format.
    key.setPassword("secret");
    key.fromOpenSshPrivateKey(try sb_priv_key.getAsString(alloc)) catch {
        std.debug.print("{s}\n", .{try key.getLastErrorText(alloc)});
        return;
    };

    // Indicate that the SSH certificate is to be used for authentication.
    // The UseSshCertificate method was added in Chilkat v11.0.0
    key.useSshCertificate(try sb_ssh_cert.getAsString(alloc)) catch {};

    const sftp = try chilkat.SFtp.init();
    defer sftp.deinit();

    const hostname = "sftp.example.com";
    const port = 22;
    sftp.connect(hostname, port) catch {
        std.debug.print("{s}\n", .{try sftp.getLastErrorText(alloc)});
        return;
    };

    sftp.authenticatePk("myLogin", key) catch {
        std.debug.print("{s}\n", .{try sftp.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Public-Key Authentication using an SSH Certificate was Successful!\n", .{});
}