[#poly1305_donna-poly1305_context-r]
= xref:poly1305_donna.adoc[poly1305_donna]::xref:poly1305_donna/poly1305_context.adoc[poly1305_context]::r
:relfileprefix: ../../
:mrdocs:

Clamped key portion r, split into 26‐bit limbs.

== Synopsis

Declared in `<crypto/poly1305.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
uint32_t r[];
----


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