Re: password policies / length restriction

The 8 character limit is part of the RFB protocol, it doesn't vary from one
version to the other, or one platform to the other.

What might have happened with previous versions is that the server might
have allowed you to enter passwords longer than 8 characters, but they will
always get truncated to the first 8 characters when they are actually used
for authentication during the handshake process. So anything past the first
8 characters might as well not exist.


*Ing. Diego Carmona Salazar*

*Desarrollador de Software  |  Ingeniería en Computación |
[email protected] <[email protected]> | ~dcarmona
<https://ic-itcr.ac.cr/~dcarmona/>*

<http://ic-itcr.ac.cr/~dcarmona/>


El lun, 15 feb 2021 a las 8:35, Matthias Heinrich (<
[email protected]>) escribió:

> When I started rolling out tightvnc 2.7.10 in 2016 I installed on
> Windows 7-machines and I could set password-length far above eight
> characters. As admin-password I chose thirteen characters f.e. When
> starting installing new Windows-10 machines last year, I recognized that
> suddenly I could only set the first eight characters of the passwords
> used on the old Windows 7-machines. I didn't see any option to
> vary/change the password length. When I started reading this
> mailing-list archive I wondered reading that I would be quite normal to
> only use 8 chars in order to maintain compatibility of all vnc-products.
> But the fact is, that on the machines installed in 2016 I could use more
> than eight chars using the same version 2.7.10. I tried the newest
> version and the problem stayed the same. Is there any possibility to "go
> back" to more than eight chars on new installations? Does even anyone
> had the same issue/phenomenon? Does it even has anything to do with the
> OS (Windows 7/10)? Thanks a lot!
>
>
>
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