Re: Testing the PRNG driver of the Allwinner Security System A20

2014-07-02 Thread Corentin LABBE
On 07/03/14 01:06, Sandy Harris wrote: > On Tue, Jul 1, 2014 at 7:14 AM, Corentin LABBE > wrote: > >> I am writing the PRNG driver for the Allwinner Security System SoC A20. > > The datasheet my search turned up (v1, Feb. 2013) just says: "160-bit > hardware PRNG with 192-bit seed" and gives no

Re: Testing the PRNG driver of the Allwinner Security System A20

2014-07-02 Thread Sandy Harris
On Tue, Jul 1, 2014 at 7:14 AM, Corentin LABBE wrote: > I am writing the PRNG driver for the Allwinner Security System SoC A20. The datasheet my search turned up (v1, Feb. 2013) just says: "160-bit hardware PRNG with 192-bit seed" and gives no other details. Do you have more info, perhaps from

Testing the PRNG driver of the Allwinner Security System A20

2014-07-01 Thread Corentin LABBE
Hello I am writing the PRNG driver for the Allwinner Security System SoC A20. I didn't know how to test it, so I have found that char/hw_random/exynos-rng.c exposes a PRNG via the hwrng interfaces. So I have written a HWRNG driver that use the SS PRNG via the crypto API (crypto_alloc_rng/crypto