(Swift 2) SSH Host Key Fingerprint

See more SSH Examples

Demonstrates how to get the SSH server's host key fingerprint after connecting.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

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

    let ssh = CkoSsh()

    var hostname: String? = "ssh.example.com"
    var port: Int = 22
    var success: Bool = ssh.Connect(hostname, port: port)
    if success != true {
        print("\(ssh.LastErrorText)")
        return
    }

    // Get the classic MD5 fingeprint
    var md5_fingerprint: String? = ssh.HostKeyFingerprint
    print("\(md5_fingerprint!)")

    // Sample output:
    // ssh-rsa 3072 21:b0:d8:41:4e:ef:78:10:20:af:01:b7:71:5d:eb:94

    // Starting in Chilkat v9.5.0.92, we can also get the SHA256 fingerprint.
    // (it is also possible to get fingerprints using other hash algorithms such as SHA384, SHA512, etc.)

    var includeKeyType: Bool = true
    var includeHashName: Bool = true
    var sha256_fingerprint: String? = ssh.GetHostKeyFP("SHA256", includeKeyType: includeKeyType, includeHashName: includeHashName)
    print("\(sha256_fingerprint!)")

    // Sample output:
    // ssh-rsa SHA256:Ufgj480OsdsCZRjj9sSNM6fpgIcSJ61RsIG8usndUIY=

    // The key type and hash name can be optionally included or not.
    includeKeyType = false
    includeHashName = true
    sha256_fingerprint = ssh.GetHostKeyFP("SHA256", includeKeyType: includeKeyType, includeHashName: includeHashName)
    print("\(sha256_fingerprint!)")

    // SHA256:Ufgj480OsdsCZRjj9sSNM6fpgIcSJ61RsIG8usndUIY=

    includeKeyType = true
    includeHashName = false
    sha256_fingerprint = ssh.GetHostKeyFP("SHA256", includeKeyType: includeKeyType, includeHashName: includeHashName)
    print("\(sha256_fingerprint!)")

    // ssh-rsa Ufgj480OsdsCZRjj9sSNM6fpgIcSJ61RsIG8usndUIY=

    includeKeyType = false
    includeHashName = false
    sha256_fingerprint = ssh.GetHostKeyFP("SHA256", includeKeyType: includeKeyType, includeHashName: includeHashName)
    print("\(sha256_fingerprint!)")

    // Ufgj480OsdsCZRjj9sSNM6fpgIcSJ61RsIG8usndUIY=

}