Improve description of algorithm NIDs in doc/man3/OSSL_CMP_CTX_new.pod
@@ -226,18 +226,18 @@ The following options can be set:
=item B<OSSL_CMP_OPT_DIGEST_ALGNID>
- The digest algorithm NID to be used in RFC 4210's MSG_SIG_ALG,
- if applicable used for message protection and Proof-of-Possession.
+ The NID of the digest algorithm to be used in RFC 4210's MSG_SIG_ALG
+ for signature-based message protection and Proof-of-Possession (POPO).
Default is SHA256.
- OSSL_CMP_OPT_OWF_ALGNID
- The digest algorithm NID to be used as one-way function (OWF)
- in RFC 4210's MSG_MAC_ALG, if applicable used for message protection.
+=item B<OSSL_CMP_OPT_OWF_ALGNID>
+ The NID of the digest algorithm to be used as one-way function (OWF)
+ in RFC 4210's MSG_MAC_ALG for PBM-based message protection.
Default is SHA256.
- OSSL_CMP_OPT_MAC_ALGNID
- The MAC algorithm NID to be used in RFC 4210's MSG_MAC_ALG,
- if applicable used for message protection.
+=item B<OSSL_CMP_OPT_MAC_ALGNID>
+ The NID of the MAC algorithm to be used in RFC 4210's MSG_MAC_ALG
+ for PBM-based message protection.
Default is HMAC-SHA1 as per RFC 4210.
=item B<OSSL_CMP_OPT_REVOCATION_REASON>
