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-rw-r--r--doc/man7/EVP_MAC-Siphash.pod5
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/man7/EVP_MAC-Siphash.pod b/doc/man7/EVP_MAC-Siphash.pod
index 2b6f2ae4e4..01849f7c4a 100644
--- a/doc/man7/EVP_MAC-Siphash.pod
+++ b/doc/man7/EVP_MAC-Siphash.pod
@@ -34,8 +34,13 @@ The length of the "size" parameter should not exceed that of a B<size_t>.
=item "key" (B<OSSL_MAC_PARAM_KEY>) <octet string>
+Sets the MAC key.
+Setting this parameter is identical to passing a I<key> to L<EVP_MAC_init(3)>.
+
=item "size" (B<OSSL_MAC_PARAM_SIZE>) <unsigned integer>
+Sets the MAC size.
+
=item "c-rounds" (B<OSSL_MAC_PARAM_C_ROUNDS>) <unsigned integer>
Specifies the number of rounds per message block. By default this is I<2>.