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crypto: stm32 - Support for STM32 CRC32 crypto module

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This module registers a CRC32 ("Ethernet") and a CRC32C (Castagnoli)
algorithm that make use of the STMicroelectronics STM32 crypto hardware.

Theses algorithms are compatible with the little-endian generic ones.
Both algorithms use ~0 as default seed (key).
With CRC32C the output is xored with ~0.

Using TCRYPT CRC32C speed test, this shows up to 900% speedup compared
to the crc32c-generic algorithm.

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Fabien DESSENNE
2017-03-21 16:13:28 +01:00
committed by Herbert Xu
parent c0a680c4cc
commit b51dbe9091
5 changed files with 336 additions and 0 deletions
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7
drivers/crypto/stm32/Kconfig Normal file
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config CRYPTO_DEV_STM32
tristate "Support for STM32 crypto accelerators"
depends on ARCH_STM32
select CRYPTO_HASH
help
This enables support for the CRC32 hw accelerator which can be found
on STMicroelectronis STM32 SOC.