Subversion Repositories oidplus

Where is SERVER_SECRET being used?
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System:
- Auth content Store (OIDplusAuthContentStoreJWT.class.php):
        Key to sign JWT tokens (used for Automated AJAX requests and logins with "Remember me") using PBKDF2+HMAC
        (ONLY if the server does not have a Public/Private key pair!)
                JWT = HS512(hash_pbkdf2('sha512', SERVER_SECRET+"/OIDplusAuthContentStoreJWT", '', 10000, 64/*256bit*/, false))
- Session Handler (OIDplusSessionHandler.class.php):
        Encryption of session contents (regular logins)
        if OpenSSL is installed:        sha512-pbkdf2 + AES-256-CBC + sha3-512-hmac
        if OpenSSL is not installed:    sha3-512-hmac
- Auth utils: Generation of auth keys
        makeAuthKey(data) = sha3_512_hmac(data, "authkey:"+SERVER_SECRET);
        used at plugin forgot RA password (public/091):
                makeAuthKey("reset_password;" + email + ";" + timestamp)
                = sha3_512_hmac("reset_password;" + email + ";" + timestamp, "authkey:"+SERVER_SECRET);
        used at plugin ViaThinkSoft FreeOID activation (public/200):
                makeAuthKey("com.viathinksoft.freeoid.activate_freeoid;" + email + ";" + timestamp)
                = sha3_512_hmac("com.viathinksoft.freeoid.activate_freeoid;" + email + ";" + timestamp, "authkey:"+SERVER_SECRET);
        used at plugin invite RA (ra/092):
                makeAuthKey("activate_ra;" + email + ";" + timestamp)
                = sha3_512_hmac("activate_ra;" + email + ";" + timestamp, "authkey:"+SERVER_SECRET);
        used at plugin change RA email (ra/102):
                makeAuthKey("activate_new_ra_email;" + old_email + ";" + new_email + ";" + timestamp)
                = sha3_512_hmac("activate_new_ra_email;" + old_email + ";" + new_email + ";" + timestamp, "authkey:"+SERVER_SECRET);

Plugin WHOIS (public/100):
- Authentication token for hidden OIDs = smallhash(SERVER_SECRET + "/WHOIS/" + id);

Plugin VNag version check (admin/901):
- Webreader password = sha3_512(SERVER_SECRET + "/VNAG")

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Important: Please never use SERVER_SECRET alone for any hashing/HMAC without adding any context to it.
        Example: Bad
                hmac(message, SERVER_SECRET)
        Example: Good
                hmac(message, 'xyz:'.SERVER_SECRET)
Reason: Since the SERVER_SECRET is used at many different places, we must make sure that the calculated values do not reveal information about the SERVER_SECRET in any kind.