structure for holding context information during a mac operation.
A pointer to this context will be passed back in a number of the other mac
operation function calls.
-The paramater I<provctx> is the provider context generated during provider
+The parameter I<provctx> is the provider context generated during provider
initialisation (see L<provider(7)>).
OP_mac_freectx() is passed a pointer to the provider side mac context in
=head2 Encryption/Decryption Functions
OP_mac_init() initialises a mac operation given a newly created provider
-side mac context in the I<mctx> paramter.
+side mac context in the I<mctx> parameter.
OP_mac_update() is called to supply data for MAC computation of a previously
initialised mac operation.