config CRYPTO_SHA2_ARM_CE tristate "SHA-224/256 digest algorithm (ARM v8 Crypto Extensions)" depends on KERNEL_MODE_NEON select CRYPTO_SHA256_ARM select CRYPTO_HASH help SHA-256 secure hash standard (DFIPS 180-2) implemented using special ARMv8 Crypto Extensions. SHA-224/256 digest algorithm (ARM v8 Crypto Extensions) from linaro.org config CRYPTO_SHA256_ARM tristate "SHA-224/256 digest algorithm (ARM-asm and NEON)" select CRYPTO_HASH depends on !CPU_V7M help SHA-256 secure hash standard (DFIPS 180-2) implemented using optimized ARM assembler and NEON, when available. SHA-224/256 digest algorithm (ARM-asm and NEON) from linaro.org