class Fog::HMAC
Public Class Methods
new(type, key)
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# File lib/fog/core/hmac.rb, line 4 def initialize(type, key) @key = key case type when 'sha1' setup_sha1 when 'sha256' setup_sha256 end end
Public Instance Methods
sign(data)
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# File lib/fog/core/hmac.rb, line 14 def sign(data) @signer.call(data) end
Private Instance Methods
setup_sha1()
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# File lib/fog/core/hmac.rb, line 20 def setup_sha1 @digest = OpenSSL::Digest::Digest.new('sha1') @signer = lambda do |data| OpenSSL::HMAC.digest(@digest, @key, data) end end
setup_sha256()
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# File lib/fog/core/hmac.rb, line 27 def setup_sha256 begin @digest = OpenSSL::Digest::Digest.new('sha256') @signer = lambda do |data| OpenSSL::HMAC.digest(@digest, @key, data) end rescue RuntimeError => error unless error.message == 'Unsupported digest algorithm (sha256).' raise error else require 'hmac-sha2' @hmac = ::HMAC::SHA256.new(@key) @signer = lambda do |data| @hmac.update(data) @hmac.digest end end end end