Hi, Well, I have nt thought about the fact that there might be a special group for ruby openssl lib. Sorry for that. Just to explain my decision to post this to a ruby group... If I would have a pem file I would do the following in ruby: public_key = OpenSSL::PKey::RSA.new(File.new(pem_file)) encrypted_string = Base64.encode64(public_key.public_encrypt(string)) Maybe somebody can point me to a more appropriate group ? Thanks a lot in advance. -- Volker On 15 Jan., 03:12, Marnen Laibow-Koser <mar... / marnen.org> wrote: > MrBana... / googlemail.com wrote: > > Hi all, > > > I have to talk to a third party system in one of my applications. > > > The login message has to be encrypted with their public key. > > However, in their documentation they only present me the key and not a > > pem file: > > Does anybody know how I may configure OPENSSL if I only have the > > public key ? > > > Key from their documentation: > > 480152500100000081009CA3D65EAC3318178F31667C3C5E60EE26DD6B090B2671928F8D461B598731AE931A2C8D02B593189DCDF17C591634DE10657AA9957CB6D9952B9040C96536F96A4BFDF0F97703893EF8D52AA91762B85D010AFCE4C3E6CB0338559DECA54D774A6640CB57B8F169B96ED223000FC950254646FA8AD7AA4361D1BCAE9694477D00000003010001 > > > Thanks a lot in advance. > > What does this have to do with Ruby? > > Best, > -- > Marnen Laibow-Koserhttp://www.marnen.org > mar... / marnen.org > -- > Posted viahttp://www.ruby-forum.com/.