提交 6d1b637b 编写于 作者: D Dr. Stephen Henson

Clarify docs.

上级 fd699ac5
......@@ -119,8 +119,9 @@ B<openssl enc -ciphername>.
A password will be prompted for to derive the key and IV if necessary.
The B<-salt> option should B<ALWAYS> be used unless you want compatability
with previous versions of OpenSSL and SSLeay.
The B<-salt> option should B<ALWAYS> be used if the key is being derived
from a password unless you want compatability with previous versions of
OpenSSL and SSLeay.
Without the B<-salt> option it is possible to perform efficient dictionary
attacks on the password and to attack stream cipher encrypted data. The reason
......
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