[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PULL 30/33] target-ppc: simplify AES emulation
From: |
Alexander Graf |
Subject: |
[Qemu-devel] [PULL 30/33] target-ppc: simplify AES emulation |
Date: |
Tue, 4 Nov 2014 20:26:48 +0100 |
From: Aurelien Jarno <address@hidden>
This patch simplifies the AES code, by directly accessing the newly added
S-Box, InvS-Box tables instead of recreating them by using the AES_Te and
AES_Td tables.
Cc: Alexander Graf <address@hidden>
Cc: Paolo Bonzini <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>
Reviewed-by: Paolo Bonzini <address@hidden>
Tested-by: Tom Musta <address@hidden>
Signed-off-by: Alexander Graf <address@hidden>
---
target-ppc/int_helper.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c
index 83c1ad0..1c7e0f1 100644
--- a/target-ppc/int_helper.c
+++ b/target-ppc/int_helper.c
@@ -2352,7 +2352,7 @@ void helper_vcipherlast(ppc_avr_t *r, ppc_avr_t *a,
ppc_avr_t *b)
int i;
VECTOR_FOR_INORDER_I(i, u8) {
- r->AVRB(i) = b->AVRB(i) ^ (AES_Te4[a->AVRB(AES_shifts[i])] & 0xFF);
+ r->AVRB(i) = b->AVRB(i) ^ (AES_sbox[a->AVRB(AES_shifts[i])]);
}
}
@@ -2381,7 +2381,7 @@ void helper_vncipherlast(ppc_avr_t *r, ppc_avr_t *a,
ppc_avr_t *b)
int i;
VECTOR_FOR_INORDER_I(i, u8) {
- r->AVRB(i) = b->AVRB(i) ^ (AES_Td4[a->AVRB(AES_ishifts[i])] & 0xFF);
+ r->AVRB(i) = b->AVRB(i) ^ (AES_isbox[a->AVRB(AES_ishifts[i])]);
}
}
--
1.8.1.4
- [Qemu-devel] [PULL 17/33] PPC: E500: Instantiate MPC8XXX gpio controller on virt machine, (continued)
- [Qemu-devel] [PULL 17/33] PPC: E500: Instantiate MPC8XXX gpio controller on virt machine, Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 14/33] target-ppc: Use macros in opcodes table handling code, Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 24/33] sysbus: Make devices spawnable via -device, Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 05/33] ppc: compute mask from BI using right shift, Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 22/33] hw/ppc/spapr_pci.c: Avoid functions not in glib 2.12 (g_hash_table_iter_*), Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 15/33] target-ppc: Fix an invalid free in opcode table handling code., Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 26/33] sysbus: Expose MMIO enumeration helper, Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 23/33] sysbus: Add dynamic sysbus device search, Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 27/33] sysbus: Add new platform bus helper device, Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 20/33] target-ppc: kvm: Fix memory overflow issue about strncat(), Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 30/33] target-ppc: simplify AES emulation,
Alexander Graf <=
- [Qemu-devel] [PULL 28/33] PPC: e500: Support dynamically spawned sysbus devices, Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 09/33] spapr: Cleanup machine naming conventions, and prepare for 2.2 release, Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 32/33] target-ppc: Fix vcmpbfp. Unordered Case, Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 21/33] ppc: do not look at the MMU index to detect PR/HV mode, Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 25/33] sysbus: Expose IRQ enumeration helpers, Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 33/33] target-ppc: Fix Altivec Round Opcodes, Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 31/33] target-ppc: Fix Altivec Shifts, Alexander Graf, 2014/11/04
- [Qemu-devel] [PULL 29/33] e500: Add support for eTSEC in device tree, Alexander Graf, 2014/11/04
- Re: [Qemu-devel] [PULL 2.2 00/33] ppc patch queue 2014-11-04 for 2.2, Peter Maydell, 2014/11/04
- Re: [Qemu-devel] [PULL 2.2 00/33] ppc patch queue 2014-11-04 for 2.2, Peter Maydell, 2014/11/05