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AES: optimize AES-GCM

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HW acceleration for GCM is now enabled by default

Closes IDF-1443
This commit is contained in:
Marius Vikhammer
2020-03-10 13:53:09 +08:00
parent 37369a8a57
commit 3351376a11
9 changed files with 511 additions and 140 deletions
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components/mbedtls/Kconfig
+8 -7
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@@ -197,7 +197,7 @@ menu "mbedTLS"
config MBEDTLS_AES_USE_INTERRUPT
bool "Use interrupt for long AES operations"
depends on MBEDTLS_HARDWARE_AES
depends on IDF_TARGET_ESP32S2 && MBEDTLS_HARDWARE_AES
default y
help
Use an interrupt to coordinate long AES operations.
@@ -207,14 +207,15 @@ menu "mbedTLS"
config MBEDTLS_HARDWARE_GCM
bool "Enable partially hardware accelerated GCM"
#depends on IDF_TARGET_ESP32S2 && MBEDTLS_HARDWARE_AES
depends on 0
default n
depends on IDF_TARGET_ESP32S2 && MBEDTLS_HARDWARE_AES
default y
help
Enable partially hardware accelerated GCM.
Enable partially hardware accelerated GCM. GHASH calculation is still done
in software.
Due to hardware limitations, hardware acceleration currently does not
offer any speed boost over software GCM with hardware accelerated AES operations.
If MBEDTLS_HARDWARE_GCM is disabled and MBEDTLS_HARDWARE_AES is enabled then
mbedTLS will still use the hardware accelerated AES block operation, but
on a single block at a time.
config MBEDTLS_HARDWARE_MPI
bool "Enable hardware MPI (bignum) acceleration"