[asterisk-users] Password to be ecrypted?

[Robles Román, José Miguel]

> On Tuesday 26 Apr 2011, bilal ghayyad wrote:
>> Hi All;
>>
>> I am using Asterisk 1.8, how I can protect my self from hackers in
>> case they was able to see my sip.conf file? I need the password to be
>> encrypted, how?
>
> Short answer:  You can't.  Asterisk itself needs to be able
> to read the stored passwords.  The Source Code to Asterisk is
> readily available.  Therefore, anyone who can read sip.conf,
> even if it is encrypted, will necessarily be able to decrypt it.
>
Perhaps using one-way hash functions (http://en.wikipedia.org/wiki/Cryptographic_hash_function) like MD5 or SHA-x, even if you get the file with passwords and the code that checks them, it would be difficult to find a collision (a password that matches the hash). This is the way in which apache, for example, stores passwords (see htpasswd).

In order to maintain compatibility, the configurarion could be

[...}
secret_sha2 = ...

Regards,
José Miguel

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