## authentication code', 2005-03-29, Appendix B,
## https://cr.yp.to/mac/poly1305-20050329.pdf
851fc40c3467ac0be05cc20404f3f700 580b3b0f9447bb1e69d095b5928b6dbc
## authentication code', 2005-03-29, Appendix B,
## https://cr.yp.to/mac/poly1305-20050329.pdf
851fc40c3467ac0be05cc20404f3f700 580b3b0f9447bb1e69d095b5928b6dbc