From: botp <botpena@...>
Date: 2011-01-26T13:31:57+09:00
Subject: Re: Unsupported digest algorithm (sha256).

On Thu, Jan 20, 2011 at 12:11 PM, yf kuanfai <kuanfai_yf@hotmail.com> wrote:
> /usr/local/lib/ruby/1.8/openssl/digest.rb:55:in `initialize':
> Unsupported digest algorithm (sha256). (RuntimeError)
>        from /usr/local/lib/ruby/1.8/openssl/digest.rb:55:in
> `initialize'
>        from
> /export/home/prjer/er/app/controllers/register_controller.rb:7:in `new'
>        from
> /export/home/prjer/er/app/controllers/register_controller.rb:7
>        from
> /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
> `gem_original_require'
>        from
> /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in
> `require'

that errs comes from your app

> but i can run the command:
>
> $ ruby -ropenssl -e 'p OpenSSL::Digest::Digest.new("sha256")'
> #<OpenSSL::Digest::Digest:
> e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855>
> $ ruby -e "puts require('openssl')"
> true

the simple ruby command works. openssl is working.

one of the gems in your app is screwing openssl. suggest to list all
the gems your app is using and open the gem one at a time until the
digest returns the error. this way you can catch the offending gem

kind regards -botp