After the removal of MD2 from OpenSSL_add_all_digests() it is no longer
possible to use it from the 'dgst' command:
$ openssl version
OpenSSL 1.0.0e 6 Sep 2011
$ openssl -h 2>&1 | ggrep -A 3 'Message Digest'
Message Digest commands (see the `dgst' command for more details)
md2 md4 md5 rmd160
sha sha1
Firstly, it produces MD5 (because dgst defaults to MD5 if md == NULL):
$ openssl md2 /etc/passwd
MD5(/etc/passwd)= c36cbe1370e3399fd628410f0a221f5e
and if used explicitly it simply throws an error:
$ openssl dgst -md2 /etc/passwd
unknown option '-md2'
options are
-c to output the digest with separating colons
...
This is because it was not removed from progs.h:
154 #ifndef OPENSSL_NO_MD2
155 {FUNC_TYPE_MD,"md2",dgst_main},
156 #endif
and apps_startup() used by MAIN in dgst.c calls
OpenSSL_add_all_algorithms() which results in a call of
OpenSSL_add_all_digests().
v.
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