Chapter 2. API Reference
Default value:
• Yes (enabled)
CONFIG_MBEDTLS_HARDWARE_GCM
Enable partially hardware accelerated GCM
Found in: Component config > mbedTLS > CONFIG_MBEDTLS_HARDWARE_AES
Enable partially hardware accelerated GCM. GHASH calculation is still done in software.
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.
Default value:
• Yes (enabled)
CONFIG_MBEDTLS_HARDWARE_MPI
Enable hardware MPI (bignum) acceleration
Found in: Component config > mbedTLS
Enable hardware accelerated multiple precision integer operations.
Hardware accelerated multiplication, modulo multiplication, and modular exponentiation for up to
SOC_RSA_MAX_BIT_LEN bit results.
These operations are used by RSA.
Default value:
• Yes (enabled) if SPIRAM_CACHE_WORKAROUND_STRATEGY_DUPLDST
CONFIG_MBEDTLS_HARDWARE_SHA
Enable hardware SHA acceleration
Found in: Component config > mbedTLS
Enable hardware accelerated SHA1, SHA256, SHA384 & SHA512 in mbedTLS.
Due to a hardware limitation, on the ESP32 hardware acceleration is only guaranteed if SHA digests
are calculated one at a time. If more than one SHA digest is calculated at the same time, one will be
calculated fully in hardware and the rest will be calculated (at least partially calculated) in software. This
happens automatically.
SHA hardware acceleration is faster than software in some situations but slower in others. You should
benchmark to find the best setting for you.
Default value:
• Yes (enabled) if SPIRAM_CACHE_WORKAROUND_STRATEGY_DUPLDST
CONFIG_MBEDTLS_ROM_MD5
Use MD5 implementation in ROM
Found in: Component config > mbedTLS
Use ROM MD5 in mbedTLS.
Default value:
• Yes (enabled)
Espressif Systems 1189
Submit Document Feedback
Release v4.4
To Next Page
Loading...