Update documentation

doc/autoyast.md

@@ -137,6 +137,24 @@ For the first user, the following elements are supported:
 | user_password        | Yes       | password          |                        |
 | username             | Yes       | userName          |                        |
 
+#### Encrypted password
+
+The encrypted password can be obtained by running the `mkpasswd` command from the `whois` package.
+
+To get the list of supported hashing methods run the `mkpasswd --method=help` command. Then use the
+selected method for hashing your password, for example `mkpasswd --method=yescrypt`.
+
+Make sure the selected hashing method is supported by the target system, different systems might
+support different set of methods.
+
+>[!CAUTION]
+>
+> Do not use any DES or MD5 based algorithms, these are considered insecure. Check `man 5 crypt`
+> manual page for details about the hashing methods and their strength.
+
+Alternatively you can use the `openssl passwd -6` command. This generates a SHA-512 password hash,
+for the SHA-256 method use the `-5` option.
+
 ### `keyboard`
 
 Only the `keymap` element is translated. The rest of options are ignored in YaST and they are not