Set the value for this password.
The value will be copied by the password object.
Specify the value.length, for a non-nul-terminated password. Pass -1 as value.length if using a nul-terminated
password, and value.length will be calculated automatically. (Note that the terminating nul is not considered part of the
password in this case.)
| this |
a TlsPassword object |
| value |
the new password value |
| length |
the length of the password, or -1 |