class JWT::JWA::HmacRbNaClFixed
Implementation of the HMAC family of algorithms (using RbNaCl prior to a certain version)
Attributes
Public Class Methods
Source
# File lib/jwt/jwa/hmac_rbnacl_fixed.rb, line 9 def self.from_algorithm(algorithm) new(algorithm, ::RbNaCl::HMAC.const_get(algorithm.upcase.gsub('HS', 'SHA'))) end
Source
# File lib/jwt/jwa/hmac_rbnacl_fixed.rb, line 13 def initialize(alg, hmac) @alg = alg @hmac = hmac end
Public Instance Methods
Source
# File lib/jwt/jwa/hmac_rbnacl_fixed.rb, line 18 def sign(data:, signing_key:) signing_key ||= '' Deprecations.warning("The use of the algorithm #{alg} is deprecated and will be removed in the next major version of ruby-jwt") raise JWT::DecodeError, 'HMAC key expected to be a String' unless signing_key.is_a?(String) hmac.auth(padded_key_bytes(signing_key, hmac.key_bytes), data.encode('binary')) end
Source
# File lib/jwt/jwa/hmac_rbnacl_fixed.rb, line 26 def verify(data:, signature:, verification_key:) verification_key ||= '' Deprecations.warning("The use of the algorithm #{alg} is deprecated and will be removed in the next major version of ruby-jwt") raise JWT::DecodeError, 'HMAC key expected to be a String' unless verification_key.is_a?(String) hmac.verify(padded_key_bytes(verification_key, hmac.key_bytes), signature.encode('binary'), data.encode('binary')) rescue ::RbNaCl::BadAuthenticatorError, ::RbNaCl::LengthError false end
Private Instance Methods
Source
# File lib/jwt/jwa/hmac_rbnacl_fixed.rb, line 42 def padded_key_bytes(key, bytesize) key.bytes.fill(0, key.bytesize...bytesize).pack('C*') end