History of Open Source Identity Management (part 1)

See the full post here ➡️ https://ubuntu.com//blog/history-of-open-source-identity-management-part-1

Excerpt below:

Few computing concepts are as ubiquitous as identity and access management. There isn’t a single day that goes by without us being asked for credentials, passwords or pin codes. Yet very few know the origins and the evolution of the technologies behind them.

This is the first of two blog posts where we will look at the history of open-source identity management. We will cover the main open-source protocols and standards that shaped it, from its origins to the modern days. This post will focus on the origins and the two major “legacy” protocols: Kerberos and LDAP.

The origins of open source identity management

Authentication has been a key part of computer security for a very long time. It originated in 1961 with the MIT compatible time-sharing system (CTSS) as a way of solving the problem of governing who has access to what resources.

IBM 709 at the MIT Computation Center

The MIT computer at the time, the IBM 709, had a finite amount of resources and as a result, operators were asked to log in with credentials that would grant them a set of limits or resources on how much CPU time and memory that operator could use. Since then, this idea of governing access to resources is still the main reason why we have authentication.

In the following years, identity became the fundamental concept underpinning all of system security. While there were many attempts to standardise the way we authenticate to computer systems,

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