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-rw-r--r--libkeccak_fast_update.39
1 files changed, 9 insertions, 0 deletions
diff --git a/libkeccak_fast_update.3 b/libkeccak_fast_update.3
index 6231da9..5d38b0d 100644
--- a/libkeccak_fast_update.3
+++ b/libkeccak_fast_update.3
@@ -83,8 +83,17 @@ libkeccak_behex_lower(hexhash, binhash, sizeof(binhash));
printf(\(dq%s\en\(dq, hexhash);
libkeccak_state_fast_destroy(&state);
.fi
+.SH NOTES
+For cSHAKE, the
+.BR libkeccak_cshake_initialise (3),
+must be called, once, immediately after
+state initialisation; before the first
+call to the
+.BR libkeccak_fast_update ()
+function.
.SH SEE ALSO
.BR libkeccak_state_initialise (3),
+.BR libkeccak_cshake_initialise (3),
.BR libkeccak_zerocopy_update (3),
.BR libkeccak_update (3),
.BR libkeccak_fast_digest (3),