c_rehash doesn't exist in OpenBSD and remove a history lesson which is either not aplicable anymore or was never true.
Index: openssl.1 =================================================================== RCS file: /backup/mirrors/cvsync/src/usr.sbin/openssl/openssl.1,v retrieving revision 1.93 diff -u -r1.93 openssl.1 --- openssl.1 13 Mar 2014 10:12:11 -0000 1.93 +++ openssl.1 25 May 2014 12:48:53 -0000 @@ -9072,11 +9072,6 @@ option of the .Nm x509 utility). -Under -.Ux , -the -.Nm c_rehash -script will automatically create symbolic links to a directory of certificates. .It Fl crl_check Checks end entity certificate validity by attempting to look up a valid CRL. If a valid CRL cannot be found an error occurs. @@ -10403,27 +10398,6 @@ It is hoped that it will represent reality in .Nm OpenSSL 0.9.5 and later. -.Sh X509 HISTORY -Before -.Nm OpenSSL -0.9.8, -the default digest for RSA keys was MD5. -.Pp -The hash algorithm used in the -.Fl subject_hash -and -.Fl issuer_hash -options before -.Nm OpenSSL -1.0.0 was based on the deprecated MD5 algorithm and the encoding -of the distinguished name. -In -.Nm OpenSSL -1.0.0 and later it is based on a canonical version of the DN using SHA1. -This means that any directories using the old form -must have their links rebuilt using -.Ar c_rehash -or similar. .\" .\" FILES .\"
