- Dynamically switch the AES operation modes based on the buffer operating length
- Shorter AES and SHA operations can now run faster and concurrently as well
Closes https://github.com/espressif/esp-idf/issues/15914
Problem:
1. In low-memory scenarios, the dynamic buffer feature can fail due to memory fragmentation.
2. It requires a contiguous 16KB heap chunk, but continuous allocation and deallocation of
the RX buffer can lead to fragmentation.
3. If another component allocates memory between these operations, it can break up the
available 16KB block, causing allocation failure.
Solution:
1. Introduce configurable strategy for using dynamic buffers in TLS connections.
2. For example, convert RX buffers to static after the TLS handshake.
3. Allow users to select the strategy via a new field in the esp_http_client_cfg_t structure.
4. The strategy can be controlled independently for each TLS session.
By default MBEDTLS_FS_IO option in mbedtls uses the filesystem supported
added by vfs component.
If the vfs support is disabled by user then mbedtls raises a warning
that the filesystem realted operation shall always fail
This commit fixes the behaviour by enabling respective depedency check for the
MBEDTLS_FS_IO option
Closes https://github.com/espressif/esp-idf/issues/14409
Disabling this config can reduce footprint for the cases where
mbedtls_strerror() is used and hence the debug strings are getting
pulled into the application image.
- In case of AXI-DMA, the DMA descriptors need to be 8 bytes aligned
lldesc_t do not satify this condition thus we need to replace it with
dma_descriptor_t (align(4) and align(8)) in esp_crypto_shared_gdma.
- Added new shared gdma start API that supports the dma_descriptor_t
DMA descriptor.
- Added some generic dma descriptor macros and helper functions
- replace lldesc_t with dma_descriptor_t
- Even if the config MBEDTLS_HARDWARE_AES is enabled, we now support fallback
to software implementation of GCM operations when non-AES ciphers are used.
- Add ECDSA peripheral chapter and instructions to program efuse key block
- Update security guide for ECDSA peripheral mention for device identity
- Link with ESP-TLS guide about using ECDSA peripheral in TLS connection
Add changes to use fast_pbkdf2 as default for PMK calculations.
fast_pbkdf2 is significantly faster than current implementations
for esp chips.
Also removes unnecessary code for pbkdf-sha256 and pbkdf-sha512.
morris
Ashish Sharma
harshal.patil
nilesh.kale
Laukik Hase
Kapil Gupta
Deomid rojer Ryabkov
Mahavir Jain
hrushikesh.bhosale
Aditya Patwardhan