Commit Graph

322 Commits

Author SHA1 Message Date
Mahavir Jain
b85c534130 mbedtls: upgrade to v2.16.9 release
For details release notes please refer to:
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.9
2020-12-17 14:15:41 +05:30
Marius Vikhammer
457ce080ae AES: refactor and add HAL layer
Refactor the AES driver and add HAL, LL and caps.

Add better support for running AES-GCM fully in hardware.
2020-12-10 09:04:47 +00:00
Marius Vikhammer
7e0f362149 esp_crt_bundle: add additional unit tests
Add unit test for:
 * Trusted certificate with weak hash algorithm signature
 * Certificate with wrong signature

Merges https://github.com/espressif/esp-idf/pull/6117
2020-12-08 10:11:31 +08:00
Jeff Epler
a79cb9f8cd esp_crt_bundle: Allow verify_callback to correct BADCERT_BAD_MD 2020-12-03 14:53:53 +08:00
Angus Gratton
5228d9f9ce esp32c3: Apply one-liner/small changes for ESP32-C3 2020-12-01 10:58:50 +11:00
Angus Gratton
d6bdd1cb32 Merge branch 'bugfix/small_cleanups' into 'master'
Small cleanups

See merge request espressif/esp-idf!11141
2020-11-23 17:23:53 +08:00
Dong Heng
1c9592efc4 fix(mbedtls): fix mbedtls dynamic resource memory leaks and RSA cert drop earlier
RX process caches the session information in "ssl->in_ctr" not in "ssl->in_buf".
So when freeing the SSL, can't free the "ssl->in_ctr", because the "ssl->in_buf"
is empty.

Make the RX process like TX process, and cache the session information in
"ssl->in_buf", so that the cache buffer can be freed when freeing the SSL.

Closes https://github.com/espressif/esp-idf/issues/6104
2020-11-19 07:31:50 +00:00
Marius Vikhammer
09e1d104ba SHA: fix dma lldesc going out of scope issue
DMA process didnt wait for idle before returning.
This meant that there was a potential for the dma
descriptors which were on the stack to be reclaimed
before the DMA operation finished.
2020-11-18 06:04:31 +00:00
Angus Gratton
b798158b4c mbedtls: Avoid malloc in esp_sha() function 2020-11-17 22:51:32 +00:00
Angus Gratton
a4fb6c0173 mbedtls: Add missing sha_caps includes 2020-11-17 22:51:07 +00:00
Marius Vikhammer
488f46acf5 SHA/RSA: moved all caps to soc_caps.h 2020-11-12 02:15:46 +00:00
Angus Gratton
66fb5a29bb Whitespace: Automated whitespace fixes (large commit)
Apply the pre-commit hook whitespace fixes to all files in the repo.

(Line endings, blank lines at end of file, trailing whitespace)
2020-11-11 07:36:35 +00:00
Konstantin Kondrashov
9386cafbc3 time: Fix gettimeofday for ESP32-S3 2020-10-20 14:09:32 +08:00
Marius Vikhammer
949fb8e63a SHA: add HAL layer and refactor driver
Add a LL and HAL layer for SHA.
2020-10-09 08:24:08 +00:00
David Čermák
28d2b7a9b3 Merge branch 'bugfix/esp_netif_non_lwip' into 'master'
esp-netif: Enable use of the ESP-IDF with a non-LWIP (and non-BSD-style) IP stack.

Closes IDFGH-3971

See merge request espressif/esp-idf!10472
2020-10-05 16:16:11 +08:00
Angus Gratton
1eefe6494c Merge branch 'feature/rsa_caps' into 'master'
RSA: add max RSA bit len as a soc caps

See merge request espressif/esp-idf!10594
2020-10-05 12:56:28 +08:00
Aditya Patwardhan
db3cbf91f9 mbedtls: Fixed target library linking when using the DS peripheral 2020-09-28 12:58:54 +05:30
Renz Bagaporo
6462f9bfe1 esp32, esp32s2: create esp_pm component 2020-09-25 05:24:10 +00:00
Marius Vikhammer
3c14900a95 RSA: add max RSA bit len as a soc caps 2020-09-24 16:52:50 +08:00
Mahavir Jain
4a3b5b73a8 Merge branch 'feature/esp_ds_sw_support' into 'master'
Added support for  RSA  sign using DS peripheral (only for ESP32-S2)

Closes IDF-1626

See merge request espressif/esp-idf!9477
2020-09-23 20:39:04 +08:00
Aditya Patwardhan
47f7c6a991 esp32s2/esp_ds: Digital Signature software support
1)Added support for alt rsa sign implementation with DS peripheral (
through ESP-TLS - mbedTLS SSL/TLS stack)
2020-09-22 18:31:31 +05:30
Marius Vikhammer
bff0016eb8 crypto accelerator support on esp32s3
SHA: passing unit tests
RSA: pass tests
AES: tests passing
2020-09-22 15:15:03 +08:00
morris
61f89b97c6 bringup esp32-s3 on FPGA 2020-09-22 15:15:03 +08:00
cnlohr
507c08251e esp_netif: Enable use of the ESP-IDF with a non-LWIP (and non-BSD-style) IP stack.
Note: besides the esp-netif component, this commit also disables
net_sockets.c from mbedtls, which is one of the base components and uses BSD API (not specifically lwIP). This might be refactored to use CONFIG_SUPPORT_BSD_API instead of CONFIG_ESP_NETIF_TCPIP_LWIP
in the future.
It also disables smartconfig_ack.c and wifi_init.c from esp_wifi
component for referencing some lwIP config options (smartconfig_ack.c changes might be also
updated to check CONFIG_SUPPORT_BSD_API)

Merges https://github.com/espressif/esp-idf/pull/5856
2020-09-18 15:10:55 +02:00
Jakob Hasse
20c068ef3b cmock: added cmock as component
* changing dependencies from unity->cmock
* added component.mk and Makefile.projbuild
* ignore test dir in gen_esp_err_to_name.py
* added some brief introduction of CMock in IDF
2020-09-02 16:38:37 +08:00
Michal Vácha
e4820fc447 Fixed TLS 1.1 still being enables even if disabled via config.
Fixed MBEDTLS_SSL_PROTO_TLS1_1 still being defined even ifCONFIG_MBEDTLS_SSL_PROTO_TLS1_1 is not

Signed-off-by: Aditya Patwardhan <aditya.patwardhan@espressif.com>

Merges https://github.com/espressif/esp-idf/pull/5675
2020-08-05 03:38:51 +00:00
Angus Gratton
75402afcae Merge branch 'feature/esp32s3_clk_memory_layout' into 'master'
esp32s3: memory layout

See merge request espressif/esp-idf!9753
2020-07-29 13:48:25 +08:00
morris
2917651478 esp_rom: extract common ets apis into esp_rom_sys.h 2020-07-27 15:27:01 +08:00
morris
19761e3113 esp32s3: clk, memory layout 2020-07-27 13:05:22 +08:00
Angus Gratton
a62689a351 Merge branch 'bugfix/mbedtls_mpi_exp_mod' into 'master'
mbedtls: Fix a case for mpi_montgomery_exp_calc() when Z is not init

Closes IDF-1870

See merge request espressif/esp-idf!9496
2020-07-24 00:02:13 +08:00
Mahavir Jain
603e0883a1 mbedtls: update to mbedtls release v2.16.7
For detailed release notes, please refer to:
https://github.com/ARMmbed/mbedtls/releases/tag/mbedtls-2.16.7
2020-07-20 15:50:20 +05:30
KonstantinKondrashov
11844a54f4 mbedtls: Fix a case for mpi_montgomery_exp_calc() when Z is not init
Closes: IDF-1870
2020-07-13 22:46:05 +08:00
Angus Gratton
22d9ff5b05 Merge branch 'feature/block_sha_fallback' into 'master'
esp32s2 SHA: fallback to hashing block by block for non DMA memory

Closes IDF-1529

See merge request espressif/esp-idf!8293
2020-06-25 09:30:39 +08:00
Marius Vikhammer
b75edc84e3 esp32s2 SHA: fallback to hashing block by block for non DMA memory
Also adds unit test for SHA with input buffer in flash

Closes IDF-1529
2020-06-10 15:09:20 +08:00
Marius Vikhammer
c343323863 Fixes issues with gen_crt_bundle.py for unicode chars
gen_crt_bundle.py could fail to parse the certificates if it contained a non-ascii character.
2020-06-08 18:27:03 +08:00
Angus Gratton
33bfe2393a Merge branch 'bugfix/wpa_supplicant_no_hw_mpi' into 'master'
wpa_supplicant: Allow building with mbedTLS integration but no hardware MPI

Closes IDFGH-3344

See merge request espressif/esp-idf!8822
2020-06-01 14:48:06 +08:00
Angus Gratton
59f29cbca8 Merge branch 'feature/allow_rtc_memory_for_task_stacks' into 'master'
Add RTC Fast Memory to Dynamic Memory Pool

See merge request espressif/esp-idf!8390
2020-05-29 14:07:01 +08:00
Angus Gratton
94f5129bf8 mbedtls: Don't compile hardware MPI & SHA files if disabled in config
Fixes bug where hardware accelerated mbedtls_mpi API was always used, even when
disabled in config.
2020-05-26 03:37:46 +00:00
Ivan Grokhotkov
a2d7e8cbba Merge branch 'bugfix/crt_bundle_no_config_file' into 'master'
esp_crt_bundle: fixes the "No CA Chain is set" error

See merge request espressif/esp-idf!8851
2020-05-22 09:34:32 +08:00
Aditya Patwardhan
423e600d46 secure_element: atecc608_ecdsa example
* Replaced crypotoauthlib with esp-cryptoauthlib
* Added menuconfig option for esp-tls about using HSM
* Added error codes for HSM in esp-tls,
* Added support to select different type of ATECC608A chips
* Added README, updated docs
* tcp_transport: Added option to enable secure_element for ssl

Closes https://github.com/espressif/esp-idf/issues/4432
2020-05-21 13:08:30 +05:30
Marius Vikhammer
f72d259622 esp_crt_bundle: fixes the "No CA Chain is set" error
When compiling esp_crt_bundle.c, it would end up with a different struct layout due
to configuration options from "mbedtls/esp_config.h" not being considered.

This lead to ca_chain potentially not being set correctly.
2020-05-21 15:19:49 +08:00
Bryan Hunt
4553f6c95d Add cryptoauthlib as a component with mbedtls integration
* Add options to mbedtls for hardware acceleration
* Disable mbedtls EC curves if hardware acceleration is selected
since the hardware will have to define the curves supported
* Add a hardware ecdsa example
2020-05-20 22:52:37 +05:30
Angus Gratton
0927ec029e wpa_supplicant: Allow building with mbedTLS integration but no hardware MPI
Also disable the relevant function in bignum.h based on config, so fails at
compile not link time.

Closes https://github.com/espressif/esp-idf/issues/5321
2020-05-20 12:06:07 +10:00
Mahavir Jain
be3b6b7cb8 Merge branch 'feature/mbedtls_dynamic_memory' into 'master'
feat(mbedtls): add dynamic buffer and local resource managment to decrease SSL heap cost

See merge request espressif/esp-idf!8313
2020-05-18 13:55:05 +08:00
Shubham Kulkarni
ca3daa50de mbedtls: Add configuration options 2020-05-15 11:27:44 +05:30
Mahavir Jain
0d208aabab mbedtls: esp32s2: check and reallocate output buffer if its from non-DMA range
Earlier check was for only input buffer but it is quite likely to have
output buffer also from non-DMA memory range and hence requirement to
reallocate and then copy data from AES engine.
2020-05-14 13:12:26 +00:00
Dong Heng
3d57bf30a2 feat(mbedtls): add dynamic buffer and local resource managment to decrease SSL heap cost 2020-05-14 11:45:09 +00:00
Piyush Shah
43b3def711 mbedtls_hkdf: Add a config option to enable HKDF 2020-05-11 11:49:14 +05:30
Piyush Shah
62e1d6712b mbedtls: Add config options for chacha20, poly1305 and chachapoly 2020-05-05 16:41:31 +00:00
Angus Gratton
433c1c9ee1 Merge branch 'bugfix/ds_mpi_lock' into 'master'
crypto: DS uses RSA peripheral, added shared lock

See merge request espressif/esp-idf!8274
2020-04-15 15:15:25 +08:00
kangping
4883010f40 mbedtls: add configuration options for EC-JPAKE
Closes https://github.com/espressif/esp-idf/pull/5106
2020-04-14 12:22:16 +00:00
Marius Vikhammer
71ab83cdfb aes: increase timeout for "mbedtls AES performance" test
Timeout increased to 60 sec from default 30 sec.

Test would occasionally timeout on S2 due to cache misses.
2020-04-10 15:49:40 +08:00
Marius Vikhammer
a2a204c2b9 crypto: DS uses RSA peripheral, added shared lock 2020-04-09 11:11:04 +00:00
Ivan Grokhotkov
8bf18d868a Merge branch 'bugfix/crt_bundle_mem_leak' into 'master'
cert bundle: Fix memory leak during cert verification

Closes IDFGH-2950

See merge request espressif/esp-idf!8117
2020-04-09 05:41:41 +08:00
Angus Gratton
2bdf22b25d Merge branch 'bugfix/sha_alloc_fallback' into 'master'
sha: add fallback for when memory alloc fails

See merge request espressif/esp-idf!8177
2020-04-08 14:15:52 +08:00
Marius Vikhammer
832599718d cert bundle: add server_root.pem incase bundle needs to be regenerated 2020-04-07 18:51:26 +08:00
Marius Vikhammer
9ccc5e6d84 cert bundle: Fix memory leak during cert verification
Also refactors the unit tests and fixes the test case, as it was giving false positives.

Closes IDFGH-2950

Closes https://github.com/espressif/esp-idf/issues/4983
2020-04-07 18:50:30 +08:00
Marius Vikhammer
1863a8ce82 sha: add fallback for when memory alloc fails 2020-04-01 02:07:44 +00:00
Marius Vikhammer
d1d91ec3dd crypto tests: fix mallocs that were missing MALLOC_CAP_8BIT
Tests had the potential to fail they got non byte-accessible memory allocated.
2020-03-30 10:40:59 +07:00
Marius Vikhammer
32f16e8c30 crypto tests: fix mallocs that were missing MALLOC_CAP_8BIT
Tests had the potential to fail they got non byte-accessible memory allocated.
2020-03-30 11:12:20 +08:00
Jeroen Domburg
419848549e Add fixes for gcc8 psram fix improvement 2020-03-27 20:04:47 +07:00
Jakob Hasse
ea47bbb118 HMAC: adding upstream message support 2020-03-26 19:00:27 +08:00
Angus Gratton
62426a6c90 Merge branch 'refactor/use_new_component_registration_functions' into 'master'
CMake: Use new component registration function

See merge request espressif/esp-idf!8068
2020-03-25 08:02:42 +08:00
Marius Vikhammer
32fd9d6c63 s2 crypto: update perf test to use cache comp timer
Updated S2 hardware accelerated crypto to use the cache compensated timer.

Re-enabled RSA performance test and set lower targets now that results are more stable

Closes: IDF-1174
2020-03-23 11:30:55 +08:00
Renz Bagaporo
3d0967a58a test: declare requirements and include dirs private 2020-03-23 10:58:50 +08:00
Ivan Grokhotkov
6330b3345e Merge branch 'bugfix/disable_rsa_perf_test' into 'master'
rsa: ignore performance test in CI

See merge request espressif/esp-idf!8026
2020-03-20 15:09:15 +08:00
Marius Vikhammer
2f5e4601ef rsa: ignore performance test in CI
Even with a static key the performance vary a lot between different builds.
2020-03-19 14:16:39 +08:00
Marius Vikhammer
ffb9010cbe aes: Fixed tag sometime being wrong for HW GCM
The GCM hardware accelerated algorithm for S2 would sometimes output
the wrong tag.

Added additional tests for AES and GCM

Re-enable HW GCM as default option
2020-03-18 08:44:38 +08:00
Angus Gratton
9c430a17aa Merge branch 'feature/mpi_accel_s2' into 'master'
MPI/RSA accelerator bringup for S2 and bignum refactor

Closes IDF-803 and IDF-1174

See merge request espressif/esp-idf!7915
2020-03-17 13:16:05 +08:00
Marius Vikhammer
7e824508a9 mpi: refactor bignum into common and hw specific components
Closes IDF-1174
2020-03-16 19:44:30 +08:00
Marius Vikhammer
16b6a7a903 s2 sha hw: Fix bug where alloc would fail if input were of len 0 2020-03-16 19:29:59 +08:00
Marius Vikhammer
e21bef3f28 mpi: active hw accel for S2
Actives MPI/RSA hardware acceleratio for ESP32 S2.

Closes IDF-803
2020-03-13 18:33:18 +08:00
Ivan Grokhotkov
64ceab0069 Merge branch 'feature/aes_sha_accel_s2' into 'master'
crypto: SHA and AES accelerator bring up for S2

Closes IDF-1443, IDF-714, and IDF-716

See merge request espressif/esp-idf!7825
2020-03-13 18:21:09 +08:00
Mahavir Jain
453b65a608 Merge branch 'feature/upgrade_mbedtls_to_v2.16.4' into 'master'
mbedtls: upgrade to release v2.16.5

Closes IDFGH-2638

See merge request espressif/esp-idf!7607
2020-03-12 18:08:33 +08:00
Marius Vikhammer
3351376a11 AES: optimize AES-GCM
HW acceleration for GCM is now enabled by default

Closes IDF-1443
2020-03-12 10:20:24 +08:00
Aditya Patwardhan
874e987a3b esp_tls: change argument pointer type to (void *) for esp_crt_bundle_attach 2020-03-11 15:54:05 +05:30
Marius Vikhammer
37369a8a57 crypto: SHA and AES accelerator bring up for S2
Brings up, fixes and enables AES and SHA hardware acceleration.

Closes IDF-714
Closes IDF-716
2020-03-11 15:09:45 +08:00
Mahavir Jain
02d2903e39 mbedtls: upgrade to release v2.16.5
For detailed release notes please refer to:
https://tls.mbed.org/tech-updates/releases/mbedtls-2.16.5-and-2.7.14-released

Closes: IDFGH-2638
Closes: https://github.com/espressif/esp-idf/issues/4716
2020-03-11 05:17:33 +00:00
Angus Gratton
f393938c22 Merge branch 'bugfix/remove_esp32s2_esp_intr_header' into 'master'
esp32s2: remove esp_intr.h header

See merge request espressif/esp-idf!7883
2020-03-06 14:30:28 +08:00
Renz Bagaporo
71c02394e5 esp32s2: remove esp_intr.h header 2020-03-05 16:15:59 +08:00
Marius Vikhammer
947e3e94ed Add ESP certificate bundle feature
Adds the ESP certificate bundle feature that enables users to bundle a
root certificate bundle together with their application.

Default bundle includes all Mozilla root certificates

Closes IDF-296
2020-03-04 10:51:43 +08:00
Sachin Parekh
301dacfb33 Exception handlers for LoadStoreError and LoadStoreAlignmentError
Configurable option to use IRAM as byte accessible memory (in single core mode) using
load-store (non-word aligned and non-word size IRAM access specific) exception handlers.
This allows to use IRAM for use-cases where certain performance penalty
(upto 170 cpu cycles per load or store operation) is acceptable. Additional configuration
option has been provided to redirect mbedTLS specific in-out content length buffers to
IRAM (in single core mode), allows to save 20KB per TLS connection.
2020-02-26 20:21:59 +08:00
michael
2529eda907 ci: disable failed cases for s2 temporarily 2020-02-15 18:28:25 +08:00
Ivan Grokhotkov
6e527fb763 mbedtls: temporary disable HW crypto for ESP32S2
To be re-enabled once HW crypto accelerators support is merged:
IDF-714, IDF-716, IDF-803.
2020-01-23 18:14:10 +01:00
morris
e30cd361a8 global: rename esp32s2beta to esp32s2 2020-01-22 12:14:38 +08:00
morris
2422c52851 global: hello world on real esp32-s2 2020-01-16 17:43:59 +08:00
morris
1c2cc5430e global: bring up esp32s2(not beta) 2020-01-16 17:41:31 +08:00
David Cermak
2efb3288a0 mbedtls: fix hw accelerated big-num mul if operand and result overlap
this issue is mainly exposed when using larger (4096) client key in TLS mutual auth,
since it uses multiplications > 2048 when mbedtls_mpi_mul_mpi is used in recursion,
which works only if both operands point to different location than result since
mpi_mult_mpi_overlong() called mbedtls_mpi_grow() to reallocate buffers used in previous
pointer arithmetics and thus corrupting it. Fixed by growing the mpi buffer before
calling mpi_mult_mpi_overlong()
2020-01-09 18:11:18 +00:00
David Cermak
b0a714476a mbedtls: added mpi multiplication test for large numbers 2020-01-09 18:11:18 +00:00
David Cermak
1acf4d46ef mbedtls: bugnum test for rsa operations with blinding 2020-01-09 18:11:18 +00:00
Angus Gratton
65dad0d46f build system: Remove some dependencies from esp32 & esp32s2beta
Possible now that wifi related source files are all in esp_wifi
2020-01-08 18:13:12 +11:00
michael
4220752aed ut: Move tests back from "esp32" subfolder
DISABLED_FOR_TARGETS macros are used

Partly revert "ci: disable unavailable tests for esp32s2beta"

This partly reverts commit 76a3a5fb48.

Partly revert "ci: disable UTs for esp32s2beta without runners"

This partly reverts commit eb158e9a22.

Partly revert "fix unit test and examples for s2beta"

This partly reverts commit 9baa7826be.

Partly revert "efuse: Add support for esp32s2beta"

This partly reverts commit db84ba868c.
2020-01-06 17:13:53 +08:00
Marius Vikhammer
c63684cf6c hw crypto: activated hardware acceleration for esp32s2beta
Activated AES, RSA and SHA hardware acceleration for esp32s2 and enabled related unit tests.

Updated with changes made for ESP32 from 0a04034, 961f59f and caea288.

Added performance targets for esp32s2beta

Closes IDF-757
2019-12-12 12:37:29 +08:00
Ryan Kurte
4ee78f8496 added KConfig option to allow loading CA certs with unsupported extensions
Close https://github.com/espressif/esp-idf/pull/4445
2019-12-10 08:47:26 +05:30
Shubham Kulkarni
c741dd0535 Fixed warnings for components driver, esp32 and mbedtls 2019-11-15 08:51:16 +00:00
Angus Gratton
6f761dd62d cmake: Fix some uninitialized variable warnings 2019-11-08 12:50:28 +08:00
Anton Maklakov
f8bfa69060 rsa test: fix a warning 2019-11-06 18:21:39 +07:00
Angus Gratton
5b33d6cf94 Merge branch 'feature/mbedtls_add_faster_modexp' into 'master'
mbedtls: Add a new (X^Y) mod M implementation (HAC 14.94)

Closes IDF-965

See merge request espressif/esp-idf!6418
2019-11-06 15:51:28 +08:00
KonstantinKondrashov
e8d3b80e4b mbedtls: Add an UT for performance RSA key operations
(New) - Montgomery exponentiation: Z = X ^ Y mod M  (HAC 14.94)
keysize = 2048 bits
RSA key operation (performance): public [21894 us], private [199119 us]
RSA key operation (performance): public [18768 us], private [189051 us]
RSA key operation (performance): public [16242 us], private [190821 us]
keysize = 3072 bits
RSA key operation (performance): public [39762 us], private [437480 us]
RSA key operation (performance): public [36550 us], private [449422 us]
RSA key operation (performance): public [40536 us], private [443451 us]
keysize = 4096 bits
RSA key operation (performance): public [65671 us], private [885215 us]
RSA key operation (performance): public [60770 us], private [880936 us]
RSA key operation (performance): public [68951 us], private [872027 us]

(Old) - Sliding-window exponentiation: Z = X ^ Y mod M  (HAC 14.85)
keysize = 2048 bits
RSA key operation (performance): public [93206 us], private [280189 us]
RSA key operation (performance): public [93060 us], private [278893 us]
RSA key operation (performance): public [97520 us], private [283252 us]
keysize = 3072 bits
RSA key operation (performance): public [293614 us], private [858157 us]
RSA key operation (performance): public [289902 us], private [843701 us]
RSA key operation (performance): public [291495 us], private [845232 us]
keysize = 4096 bits
RSA key operation (performance): public [653192 us], private [1912126 us]
RSA key operation (performance): public [656661 us], private [1901792 us]
RSA key operation (performance): public [641390 us], private [1938911 us]
2019-11-05 16:33:11 +08:00
KonstantinKondrashov
5ed8388f6b mbedtls: Add Montgomery exponentiation implementation (HAC 14.94)
It gave us a better performance of RSA operations. (2~11 times)

The old modexp implementation (Z = X ^ Y mod M) loaded all the data into
the hw registers and was waiting for completion, but due to
the hardware RSA implementation, the calculations always started with 4096 bit,
which took a lot of time.
Measurement results (measurements were made for keys: 2048, 3072 and 4096 bits)
(Old) - Sliding-window exponentiation (HAC 14.85):
keysize = 2048 bits
RSA key operation (performance): public [93206 us], private [280189 us]
keysize = 3072 bits
RSA key operation (performance): public [293614 us], private [858157 us]
 keysize = 4096 bits
RSA key operation (performance): public [653192 us], private [1912126 us]

Instead (Old) - Sliding-window exponentiation (HAC 14.85) was implemented
(New) - Montgomery exponentiation (HAC 14.94) which showed
better performance on private and public keys.
keysize = 2048 bits
RSA key operation (performance): public [14504 us], private [149456 us]
keysize = 3072 bits
RSA key operation (performance): public [35073 us], private [392743 us]
keysize = 4096 bits
RSA key operation (performance): public [58650 us], private [787186 us]

For this reason, the old implementation was removed
and the MBEDTLS_HARDWARE_MPI option was turned on by default.

Why the MPI_INTERRUPT option is removed:
the old implementation used calculations on the hardware and
it took a lot of time (10ms - 500ms). And in order not to stand idle
while waiting for completion, an interrupt option was added.
This made it possible to carry out other tasks during the calculation,
and this one to block. The new method is free from such a drawback and
the maximum duration of one RSA HW operation does not exceed 70us (usually 2-70 μs).
This option is no longer needed.

Closes: IDF-965
2019-11-05 16:33:11 +08:00