The Generic Security Service Application Program Interface (GSSAPI, also GSS- API) is an . Sun Microsystems (). “GSS-API Programming Guide”. The GSSAPI (Generic Security Services API) allows applications to communicate securely using Kerberos 5 or other security mechanisms. We recommend. The Secure Shell protocol supports Kerberos authentication via GSSAPI (Generic Security Services Application Programming Interface). Advantages of using.
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In MIT krb5 versions prior to 1. Retrieved from ” https: As with other GSSAPI serialization functions, these extensions are only intended to work with a matching implementation on the other side; they do not serialize credentials in a standardized format. The application must pad the DATA buffer to a multiple of 16 bytes as no padding or trailer buffer is used.
Kerberos (GSSAPI) Authentication
This is the recommended approach if the server application has no specific requirements to the contrary. Please help to improve this article by introducing more precise citations.
This article includes a list of referencesrelated reading or external linksbut its sources remain unclear because it lacks inline citations. The serialization format does not protect this information from eavesdropping or tampering. A krb5 GSSAPI credential may contain references to a credential cache, a client keytab, an acceptor keytab, and a replay cache. This is the most common way to name target services when initiating a security context, and is the most likely name type to work across multiple mechanisms.
Generic Security Services Application Program Interface
Note In MIT krb5 versions prior to 1. The value is treated as an unparsed principal name string, as above. If the security implementation ever needs replacing, the application need not be rewritten. These name types may work with mechanisms other than krb5, but will have different interpretations in those mechanisms.
The hostname will be canonicalized using forward name resolution, and possibly also using reverse name resolution depending on the value of the rdns variable in [libdefaults].
Note If a hostname is specified, it will be canonicalized using forward name resolution, and possibly also using reverse name resolution depending on the value of the rdns variable in [libdefaults]. Are you going to do programming this is not clear form your question? Yes, I believe I need to implement my own server-side component to do the authentication, so it’s a programming question.
linux – Server side of GSSAPI for sshd and private key authentication – Stack Overflow
DATA buffers must be provided in the iov list so that padding length can be computed correctly, but the output buffers need not be initialized. This page was last edited on 25 Januaryat Because of this, a serialized krb5 credential can only be imported by a process with similar privileges to the exporter.
I’m looking at a way of authenticating users connecting to an SSH daemon. The value should guice a principal name string. The calling application must take care to protect the serialized credential when communicating it over an insecure channel or to an untrusted party.
If there are no existing tickets for the chosen principal, but it is present in the default client keytab, the krb5 mechanism will acquire initial tickets using the keytab.