Document OID identifier

blake3.tex

@@ -1028,6 +1028,12 @@ \section{Applications}\label{sec:applications}
 function, MAC, or key derivation function---as well as streaming and
 incremental processing features.
 
+Developers adapting BLAKE3 to ASN.1-based message formats should use
+the Algorithm Identifier id-blake3-256 with OID identifier
+1.3.6.1.4.1.1722.12.3.8. The same OID can be used for both keyed and
+unkeyed hashing since in the latter case the key simply has zero
+length.
+
 \subsection{Pseudorandom Function and MAC}\label{sec:mac}
 
 Like BLAKE2, BLAKE3 provides a keyed mode, \flag{keyed_hash}. This removes the