On 3/20/09 2:47 PM, "Amandeep Khurana" <ama...@gmail.com> wrote:

> 
> 2. The Jira doesnt have cover the access control aspect of things. As a
> client, I can skip talking to the NN and get blocks from the DN straight
> away. There is no way to prevent it. This paper takes care of that aspect as
> well.
> 

Have you looked at HADOOP-4359? In that JIRA, we discussed the idea of using
public-key signed capabilities and dismissed it in favor of symmetric-key
based capabilities. That said, you're welcome to explore the public-key idea
further.

Kan

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