Hi,
Does anyone know about stripped down versions of Android? Is there a record for smallest footprint that still allows 1 app to be run?
Does anyone know of a mobile phone that uses an ARM derived CPU with 'secure zone' extension to CPU'
I am working on a hardware + software secure phone but frankly, cortex derived CPUs are really easy to attack (fixing 1 of 4-ways of cache to fixed address (within program to attack) and write to it... It's THAT simple.
Since some microSD cards contain ARM7 TDMI, I presume all have similar CPU. Think what attacks could be done with this vector.
Looking at modding Galaxy S4 to remove microSD slot & replacing switch which is CS for Broadcom 2073 (NFC) so used can physically stop all NFC (forget software solution - see above attavk vectors).
Sorry to ask so much, but what I will give back is details on finished device. Have got secure (encrypted) app gifted (for 30 days)) by worlds number 1 encrypted communication company whose software supports suite B.
Many thanks in advance for anything you can offer.
Does anyone know about stripped down versions of Android? Is there a record for smallest footprint that still allows 1 app to be run?
Does anyone know of a mobile phone that uses an ARM derived CPU with 'secure zone' extension to CPU'
I am working on a hardware + software secure phone but frankly, cortex derived CPUs are really easy to attack (fixing 1 of 4-ways of cache to fixed address (within program to attack) and write to it... It's THAT simple.
Since some microSD cards contain ARM7 TDMI, I presume all have similar CPU. Think what attacks could be done with this vector.
Looking at modding Galaxy S4 to remove microSD slot & replacing switch which is CS for Broadcom 2073 (NFC) so used can physically stop all NFC (forget software solution - see above attavk vectors).
Sorry to ask so much, but what I will give back is details on finished device. Have got secure (encrypted) app gifted (for 30 days)) by worlds number 1 encrypted communication company whose software supports suite B.
Many thanks in advance for anything you can offer.