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https://issues.apache.org/jira/browse/COUCHDB-625?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Anderson reopened COUCHDB-625:
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Assignee: Chris Anderson
Reopening, as this is a good idea.
I think it's worth inquiring from the legal list about algorithms implemented
based on wikipedia articles.
My gut says we can use it. If we can't, it's worth redoing the work based on
the original govt papers, or perhaps APR because we know it is clean.
> Pure Erlang alternative to crypto library
> -----------------------------------------
>
> Key: COUCHDB-625
> URL: https://issues.apache.org/jira/browse/COUCHDB-625
> Project: CouchDB
> Issue Type: Improvement
> Components: Infrastructure
> Reporter: Jonathan D. Knezek
> Assignee: Chris Anderson
> Priority: Minor
> Attachments: ccrypto.erl
>
>
> On some platforms (in my case a SheevaPlug running on armv5te) it may be
> difficult or impossible to obtain a version of Erlang built with support for
> the crypto standard library. I grepped the CouchDB source and have attempted
> to reproduce the used crypto calls in pure Erlang.
> I have reproduced the start/0, rand_uniform/2, rand_bytes/1, sha/1, and
> sha_mac/2 functions, along with test_sha/1 and test_sha_mac/1 functions to
> validate the pure Erlang results against the crypto library's results. The
> public non-test functions attempt to first call into crypto if available, as
> it is the preferred implementation.
> As I'm not familiar with the build system, app system, etc. of Erlang I am
> only attaching the library implementation. I'm sure more work would be
> required to fully integrate it into CouchDB if accepted.
> As far as licensing goes, SHA1 is defined in NIST FIPS 180-2
> (http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf), and
> according to the IETF, the patent covering the algorithm has been made
> royalty-free (https://datatracker.ietf.org/ipr/858).
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