Method: SDM::Client#sign

Defined in:
lib/strongdm.rb

#sign(method_name, msg_bytes) ⇒ Object


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# File 'lib/strongdm.rb', line 137

def sign(method_name, msg_bytes)
  current_utc_date = Time.now.utc
  date = sprintf("%04d-%02d-%02d", current_utc_date.year, current_utc_date.month, current_utc_date.day)

  signing_key = OpenSSL::HMAC.digest(OpenSSL::Digest::SHA256.new, @api_secret_key, date)
  signing_key = OpenSSL::HMAC.digest(OpenSSL::Digest::SHA256.new, signing_key, "sdm_api_v1")

  sha_req = Digest::SHA256.new
  sha_req << method_name
  sha_req << "\n"
  sha_req << msg_bytes
  request_hash = sha_req.digest

  return Base64.strict_encode64(OpenSSL::HMAC.digest(OpenSSL::Digest::SHA256.new, signing_key, request_hash))
end