# File lib/signet/oauth_1/signature_methods/hmac_sha1.rb, line 14 def self.generate_signature( base_string, client_credential_secret, token_credential_secret) # Both the client secret and token secret must be escaped client_credential_secret = Signet::OAuth1.encode(client_credential_secret) token_credential_secret = Signet::OAuth1.encode(token_credential_secret) # The key for the signature is just the client secret and token # secret joined by the '&' character. If the token secret is omitted, # the '&' must still be present. key = [client_credential_secret, token_credential_secret].join("&") return Base64.encode64(Digest::HMAC.digest( base_string, key, Digest::SHA1 )).strip end