Re: [OE-core] How to set the password Hashing Algorithm for root user to SHA256 or SHA512

Re: [OE-core] How to set the password Hashing Algorithm for root user to SHA256 or SHA512

[Khem Raj]

On Sat, Dec 19, 2020 at 11:58 AM Sourabh Banerjee
<sbanerje@codeaurora.org> wrote:
>
> [Edited Message Follows]
>
> The image I generated seems to use MD5 for root password hashing.
> I understood this from the /etc/shadow file in the image., the file has following line:
>
>     root:$1$b7X30f8f$au21weqL.9.ExM4N84AtA0:18614:0:99999:7:::
>
> Is there an OE config I can change to change password hashing from MD5 to SHA256?
>

somewhere you must be setting the password something like this in local.conf

EXTRA_USERS_PARAMS += "\
    useradd admin; \
    usermod -p 'XXXXXX' admin; \
"

Now how you generate the password could be done separately via

something like ( for setting password to me 'test' )

python3 -c 'import crypt; print(crypt.crypt("test",
crypt.mksalt(crypt.METHOD_SHA256)))'

Replace XXXXXX with the output of the above cmd

aside from this its perhaps better to use sha512 than sha256

> I am using Thud version.
>
> --
> Regards,
> Sourabh
>
> 
>

Re: [OE-core] How to set the password Hashing Algorithm for root user to SHA256 or SHA512

[Sourabh Banerjee]

On 2020-12-20 10:16, Khem Raj wrote:
> On Sat, Dec 19, 2020 at 11:58 AM Sourabh Banerjee
> <sbanerje@codeaurora.org> wrote:
>> 
>> [Edited Message Follows]
>> 
>> The image I generated seems to use MD5 for root password hashing.
>> I understood this from the /etc/shadow file in the image., the file 
>> has following line:
>> 
>>     root:$1$b7X30f8f$au21weqL.9.ExM4N84AtA0:18614:0:99999:7:::
>> 
>> Is there an OE config I can change to change password hashing from MD5 
>> to SHA256?
>> 
> 
> somewhere you must be setting the password something like this in 
> local.conf
> 
> EXTRA_USERS_PARAMS += "\
>     useradd admin; \
>     usermod -p 'XXXXXX' admin; \
> "
> 
> Now how you generate the password could be done separately via
> 
> something like ( for setting password to me 'test' )
> 
> python3 -c 'import crypt; print(crypt.crypt("test",
> crypt.mksalt(crypt.METHOD_SHA256)))'
> 
> Replace XXXXXX with the output of the above cmd
> 
> aside from this its perhaps better to use sha512 than sha256
> 
>> I am using Thud version.
>> 
>> --
>> Regards,
>> Sourabh
>> 
>> 
>> 

Thanks Khem! I will try this and get back.


-- 
Regards,
Sourabh