How permissions to improve security?

I don't see how, request permissions adds safe.  Since any writer app can request an authorization, and since it is always granted, how this adds to the safety of the appliance?  How this regime does not prevent installation of rogue software that could compromise stability/security of a system?

Hi guys,.

And now is the time to present you the second part of the security infrastructure: the authentication provider. This is exactly the thing which associates the application specific only to the security of the Client and with the set of permissions allowed for this application. The default implementation of the authentication provider use x.509 certificates to authenticate the request. In other words, the device must have the public key and the application developer has the private key. The developer of the app signed his application and the device verifies that the signature is valid. At the same time, the unit knows (pre-configured with) the association between the certificate and the name of the customer.

In implementation of Oracle association is stored in the _policy.txt file by providing the descriptor of each customer with the distinguished name of the certificate. You can easily check it's clear. There you can also see how allowed permissions are listed for the customers. Certificates on the device can be managed remotely via the CLI (Command Line Interface) of the Agent of developer. Please see Getting Started Guide of JavaME for details. Although the way easiest to manage with Netbeans - see tab in project properties/Open keystore signature manager /... This is also described in the docs (I don't remember of the top of my head, GSG the JavaME itself or some doc of SDK)

Clark, regarding your example. Presumably, you configure the device with 3 customers of security: two signed and unsigned one. Include you the RMS permissions in the first two and do not include in that unsigned. You build two certificates and deploy their public keys on the device. One of them gives your contractor and put their DNs in your policy file. Then, you and your contractor sign applications that use the respective certificates and these applications receive approval. Then application of someone couldn't get permission it is not included in unsigned client. The only ways to impresonate would be: to steal the private keys for the ceritificates or notch in the unit to change the policy of security or a set of certificates. Needles to say that trade devices the corresponding files are stored in the secure place and are not accessible in the way they are on RPi/windows

Kind regards

Andrey

Tags: Java

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