From: Richard Henderson <richard.henderson@linaro.org>
To: Ard Biesheuvel <ardb@kernel.org>
Cc: qemu-devel@nongnu.org, berrange@redhat.com, qemu-ppc@nongnu.org,
qemu-arm@nongnu.org, qemu-riscv@nongnu.org, pbonzini@redhat.com,
"Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: Re: [PATCH v2 05/38] crypto/aes: Add constants for ShiftRows, InvShiftRows
Date: Thu, 29 Jun 2023 13:58:19 +0200 [thread overview]
Message-ID: <7becd84c-0e13-4fad-ecc2-77b44fe79979@linaro.org> (raw)
In-Reply-To: <CAMj1kXFWDMijy6eTCBwCbygJHyBpS6PqaU=1d5OeE6h_v4=-zg@mail.gmail.com>
On 6/29/23 12:21, Ard Biesheuvel wrote:
>> +/* AES ShiftRows, for complete unrolling. */
>> +enum {
>> + AES_SH_0 = 0x0,
>> + AES_SH_1 = 0x5,
>> + AES_SH_2 = 0xa,
>> + AES_SH_3 = 0xf,
>> + AES_SH_4 = 0x4,
>> + AES_SH_5 = 0x9,
>> + AES_SH_6 = 0xe,
>> + AES_SH_7 = 0x3,
>> + AES_SH_8 = 0x8,
>> + AES_SH_9 = 0xd,
>> + AES_SH_A = 0x2,
>> + AES_SH_B = 0x7,
>> + AES_SH_C = 0xc,
>> + AES_SH_D = 0x1,
>> + AES_SH_E = 0x6,
>> + AES_SH_F = 0xb,
>> +};
>> +
>
> We might simplify this further by doing
>
> #define AES_SH(n) (((n) * 5) % 16)
> #define AES_ISH(n) (((n) * 13) % 16)
Thanks. I should have noticed, but
s'_{r,c} = s_{r,(c+r)%4}
didn't make an impression and I assumed the table was non-regular.
r~
next prev parent reply other threads:[~2023-06-29 11:59 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-09 2:23 [PATCH v2 00/38] crypto: Provide aes-round.h and host accel Richard Henderson
2023-06-09 2:23 ` [PATCH v2 01/38] tcg/ppc: Define _CALL_AIX for clang on ppc64(be) Richard Henderson
2023-06-12 13:25 ` Daniel Henrique Barboza
2023-06-09 2:23 ` [PATCH v2 02/38] util: Add cpuinfo-ppc.c Richard Henderson
2023-06-12 13:27 ` Daniel Henrique Barboza
2023-06-19 10:37 ` Philippe Mathieu-Daudé
2023-06-19 14:44 ` Richard Henderson
2023-06-09 2:23 ` [PATCH v2 03/38] tests/multiarch: Add test-aes Richard Henderson
2023-06-12 14:46 ` Alex Bennée
2023-06-14 3:40 ` Richard Henderson
2023-06-09 2:23 ` [PATCH v2 04/38] target/arm: Move aesmc and aesimc tables to crypto/aes.c Richard Henderson
2023-06-19 16:49 ` Daniel P. Berrangé
2023-06-09 2:23 ` [PATCH v2 05/38] crypto/aes: Add constants for ShiftRows, InvShiftRows Richard Henderson
2023-06-19 15:41 ` Daniel P. Berrangé
2023-06-29 10:21 ` Ard Biesheuvel
2023-06-29 11:58 ` Richard Henderson [this message]
2023-06-09 2:23 ` [PATCH v2 06/38] crypto: Add aesenc_SB_SR_AK Richard Henderson
2023-06-19 16:56 ` Daniel P. Berrangé
2023-06-19 17:05 ` Richard Henderson
2023-06-09 2:23 ` [PATCH v2 07/38] target/i386: Use aesenc_SB_SR_AK Richard Henderson
2023-06-19 10:43 ` Philippe Mathieu-Daudé
2023-06-19 10:45 ` Philippe Mathieu-Daudé
2023-06-09 2:23 ` [PATCH v2 08/38] target/arm: Demultiplex AESE and AESMC Richard Henderson
2023-06-09 2:23 ` [PATCH v2 09/38] target/arm: Use aesenc_SB_SR_AK Richard Henderson
2023-06-09 2:23 ` [PATCH v2 10/38] target/ppc: " Richard Henderson
2023-06-12 13:26 ` Daniel Henrique Barboza
2023-06-19 10:47 ` Philippe Mathieu-Daudé
2023-06-09 2:23 ` [PATCH v2 11/38] target/riscv: " Richard Henderson
2023-06-09 2:23 ` [PATCH v2 12/38] crypto: Add aesdec_ISB_ISR_AK Richard Henderson
2023-06-09 2:23 ` [PATCH v2 13/38] target/i386: Use aesdec_ISB_ISR_AK Richard Henderson
2023-06-19 10:51 ` Philippe Mathieu-Daudé
2023-06-09 2:23 ` [PATCH v2 14/38] target/arm: " Richard Henderson
2023-06-09 2:23 ` [PATCH v2 15/38] target/ppc: " Richard Henderson
2023-06-12 13:27 ` Daniel Henrique Barboza
2023-06-19 10:51 ` Philippe Mathieu-Daudé
2023-06-09 2:23 ` [PATCH v2 16/38] target/riscv: " Richard Henderson
2023-06-09 2:23 ` [PATCH v2 17/38] crypto: Add aesenc_MC Richard Henderson
2023-06-09 2:23 ` [PATCH v2 18/38] target/arm: Use aesenc_MC Richard Henderson
2023-06-09 2:23 ` [PATCH v2 19/38] crypto: Add aesdec_IMC Richard Henderson
2023-06-09 2:23 ` [PATCH v2 20/38] target/i386: Use aesdec_IMC Richard Henderson
2023-06-09 2:23 ` [PATCH v2 21/38] target/arm: " Richard Henderson
2023-06-09 2:23 ` [PATCH v2 22/38] target/riscv: " Richard Henderson
2023-06-09 2:23 ` [PATCH v2 23/38] crypto: Add aesenc_SB_SR_MC_AK Richard Henderson
2023-06-09 2:23 ` [PATCH v2 24/38] target/i386: Use aesenc_SB_SR_MC_AK Richard Henderson
2023-06-09 2:23 ` [PATCH v2 25/38] target/ppc: " Richard Henderson
2023-06-12 13:28 ` Daniel Henrique Barboza
2023-06-09 2:23 ` [PATCH v2 26/38] target/riscv: " Richard Henderson
2023-06-09 2:23 ` [PATCH v2 27/38] crypto: Add aesdec_ISB_ISR_IMC_AK Richard Henderson
2023-06-09 2:23 ` [PATCH v2 28/38] target/i386: Use aesdec_ISB_ISR_IMC_AK Richard Henderson
2023-06-09 2:23 ` [PATCH v2 29/38] target/riscv: " Richard Henderson
2023-06-09 2:23 ` [PATCH v2 30/38] crypto: Add aesdec_ISB_ISR_AK_IMC Richard Henderson
2023-06-19 13:59 ` Philippe Mathieu-Daudé
2023-06-09 2:23 ` [PATCH v2 31/38] target/ppc: Use aesdec_ISB_ISR_AK_IMC Richard Henderson
2023-06-12 13:28 ` Daniel Henrique Barboza
2023-06-19 13:46 ` Philippe Mathieu-Daudé
2023-06-09 2:23 ` [PATCH v2 32/38] crypto: Remove AES_shifts, AES_ishifts Richard Henderson
2023-06-19 13:45 ` Philippe Mathieu-Daudé
2023-06-09 2:23 ` [PATCH v2 33/38] crypto: Implement aesdec_IMC with AES_imc_rot Richard Henderson
2023-06-20 5:09 ` Philippe Mathieu-Daudé
2023-06-09 2:23 ` [PATCH v2 34/38] crypto: Remove AES_imc Richard Henderson
2023-06-19 13:19 ` Philippe Mathieu-Daudé
2023-06-09 2:23 ` [PATCH v2 35/38] crypto: Unexport AES_*_rot, AES_TeN, AES_TdN Richard Henderson
2023-06-19 13:18 ` Philippe Mathieu-Daudé
2023-06-09 2:23 ` [PATCH v2 36/38] host/include/i386: Implement aes-round.h Richard Henderson
2023-06-09 2:24 ` [PATCH v2 37/38] host/include/aarch64: " Richard Henderson
2023-06-09 2:24 ` [PATCH v2 38/38] host/include/ppc: " Richard Henderson
2023-06-12 13:30 ` Daniel Henrique Barboza
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