* Fix typo in documentation for [Simple HTTP Basic Auth](https://fastapi.tiangolo.com/advanced/security/http-basic-auth/#simple-http-basic-auth). PR [#514](https://github.com/tiangolo/fastapi/pull/514) by [@prostomarkeloff](https://github.com/prostomarkeloff).

gcmBlockSize); siz > 0 { gcmHash(hash[:], productTable, data[:], siz) data = data[siz:] } if len(data) > 0 { var s [16]byte copy(s[:], data) gcmHash(hash[:], productTable, s[:], len(s)) } } // auth calculates GHASH(ciphertext, additionalData), masks the result with // tagMask and writes the result to out. func auth(out, ciphertext, aad []byte, tagMask *[gcmTagSize]byte, productTable *[256]byte) { var hash [16]byte paddedGHASH(&hash, aad, productTable) paddedGHASH(&hash, ciphertext, productTable) lens...