[#poly1305_donna]
= poly1305&lowbar;donna
:mrdocs:

Low&hyphen;level Poly1305 routines based on the public domain poly1305&hyphen;donna implementation by Andrew Moon (poly1305&hyphen;donna&hyphen;32&period;h)&period;

== Types

[cols="1,4"]
|===
| Name| Description
| xref:poly1305_donna/poly1305_context.adoc[`poly1305&lowbar;context`] 
| Incremental state for a Poly1305 one&hyphen;time authenticator computation&period;
|===


== Functions

[cols="1,4"]
|===
| Name| Description
| xref:poly1305_donna/poly1305_finish.adoc[`poly1305&lowbar;finish`] 
| Finish a Poly1305 computation and write the 16&hyphen;byte authentication tag&period;
| xref:poly1305_donna/poly1305_init.adoc[`poly1305&lowbar;init`] 
| Initialize a Poly1305 state with a 32&hyphen;byte one&hyphen;time key&period;
| xref:poly1305_donna/poly1305_update.adoc[`poly1305&lowbar;update`] 
| Feed message bytes into a Poly1305 state&period;
|===



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