These parameters work as described in L<EVP_KDF(3)/PARAMETERS>.
-The C<OSSL_KDF_PARAM_DIGEST> parameter is used to set the message digest
+The B<OSSL_KDF_PARAM_DIGEST> parameter is used to set the message digest
associated with the TLS PRF.
EVP_md5_sha1() is treated as a special case which uses the
PRF algorithm using both B<MD5> and B<SHA1> as used in TLS 1.0 and 1.1.
The digest, secret value and seed must be set before a key is derived otherwise
an error will occur.
-The output length of the PRF is specified by the C<keylen> parameter to the
+The output length of the PRF is specified by the I<keylen> parameter to the
EVP_KDF_derive() function.
=head1 EXAMPLES