class OAuth::Signature::RSA::SHA1

   # File lib/oauth/signature/rsa/sha1.rb
11 def ==(other)
12   decoded = Base64.decode64(other.is_a?(Array) ? other.first : other)
13   public_key.verify(OpenSSL::Digest.new("SHA1"), decoded, signature_base_string)
14 end

   # File lib/oauth/signature/rsa/sha1.rb
27 def body_hash
28   # Use SHA1 body hash with compatibility across OpenSSL versions
29   data = request.body || ""
30   begin
31     digest_bytes = OpenSSL::Digest.digest("SHA1", data)
32   rescue StandardError
33     digest_bytes = ::Digest::SHA1.digest(data)
34   end
35   Base64.encode64(digest_bytes).chomp.delete("\n")
36 end

   # File lib/oauth/signature/rsa/sha1.rb
16 def public_key
17   case consumer_secret
18   when String
19     decode_public_key
20   when OpenSSL::X509::Certificate
21     consumer_secret.public_key
22   else
23     consumer_secret
24   end
25 end

   # File lib/oauth/signature/rsa/sha1.rb
40 def decode_public_key
41   case consumer_secret
42   when /-----BEGIN CERTIFICATE-----/
43     OpenSSL::X509::Certificate.new(consumer_secret).public_key
44   else
45     OpenSSL::PKey::RSA.new(consumer_secret)
46   end
47 end

   # File lib/oauth/signature/rsa/sha1.rb
49 def digest
50   private_key = OpenSSL::PKey::RSA.new(
51     if options[:private_key_file]
52       File.read(options[:private_key_file])
53     elsif options[:private_key]
54       options[:private_key]
55     else
56       consumer_secret
57     end,
58   )
59 
60   private_key.sign(OpenSSL::Digest.new("SHA1"), signature_base_string)
61 end