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-rw-r--r--libsha2_digest.38
1 files changed, 8 insertions, 0 deletions
diff --git a/libsha2_digest.3 b/libsha2_digest.3
index c31025c..dac48b4 100644
--- a/libsha2_digest.3
+++ b/libsha2_digest.3
@@ -31,6 +31,14 @@ least the return value of the
.BR libsha2_state_output_size (3)
function.
.PP
+If
+.I msglen
+is not a multiple of 8, the lowest
+.I msglen%8
+bits from the last by in
+.I message
+is used as the complete byte.
+.PP
The
.BR libsha2_behex_lower (3)
and