Latest stream cipher considered reasonably secure & easy to implement?

Posted by hythlodayr on Stack Overflow See other posts from Stack Overflow or by hythlodayr
Published on 2010-06-07T14:53:44Z Indexed on 2010/06/07 16:22 UTC
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(A)RC4 used to fit the bill, since it was so simple to write. But it's also less-than-secure these days.

I'm wondering if there's a successor that's:

  • Code is small enough to write & debug within an hour or so, using pseudo code as a template.
  • Still considered secure, as of 2010.
  • Optimized for software.
  • Not encumbered by licensing issues.

I can't use crypto libraries, otherwise all of this would be moot. Also, I'll consider block algorithms though I think most are pretty hefty.

Thanks.

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