cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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pauth-3.c (1019B)

      1#include <inttypes.h>
      2#include <minilib.h>
      3
      4int main()
      5{
      6    /*
      7     * Test vector from QARMA paper (https://eprint.iacr.org/2016/444.pdf)
      8     * to verify one computation of the pauth_computepac() function,
      9     * which uses sbox2.
     10     *
     11     * Use PACGA, because it returns the most bits from ComputePAC.
     12     * We still only get the most significant 32-bits of the result.
     13     */
     14
     15    static const uint64_t d[5] = {
     16        0xfb623599da6e8127ull,
     17        0x477d469dec0b8762ull,
     18        0x84be85ce9804e94bull,
     19        0xec2802d4e0a488e9ull,
     20        0xc003b93999b33765ull & 0xffffffff00000000ull
     21    };
     22    uint64_t r;
     23
     24    asm("msr apgakeyhi_el1, %[w0]\n\t"
     25        "msr apgakeylo_el1, %[k0]\n\t"
     26        "pacga %[r], %[P], %[T]"
     27        : [r] "=r"(r)
     28        : [P] "r" (d[0]),
     29          [T] "r" (d[1]),
     30          [w0] "r" (d[2]),
     31          [k0] "r" (d[3]));
     32
     33    if (r == d[4]) {
     34        ml_printf("OK\n");
     35        return 0;
     36    } else {
     37        ml_printf("FAIL: %lx != %lx\n", r, d[4]);
     38        return 1;
     39    }
     40}