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Author SHA1 Message Date
Andrzej Kurek
ce62080a99
Merge pull request #3613 from AndrzejKurek/fi-double-crypto-calls 
Add double pk verification and double master secret calculation
 2020-10-07 16:03:23 +01:00
Andrzej Kurek
2544cd3582
Merge pull request #3724 from AndrzejKurek/transform-cipher-optimization-2 
Add hash calculation to the ssl module
 2020-10-06 14:20:10 +01:00
Andrzej Kurek
73680ad5a2
Merge pull request #3694 from AndrzejKurek/transform-cipher-optimization 
Merge enc/dec cipher contexts in ssl transforms
 2020-09-23 14:06:43 +01:00
Andrzej Kurek
f4d2c7de31
Improve FI resistance of pk verification in ssl_cli.c 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-09-20 02:15:16 +02:00
Andrzej Kurek
f74a86c0b0
Improve FI resistance of certificate verification in ssl_srv.c 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-09-20 01:57:30 +02:00
Andrzej Kurek
ef34494d80
ssl_srv.c: change the initial return variable value 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-09-20 00:29:43 +02:00
Andrzej Kurek
ff51721e99
ssl_tls: reduce the complexity of encryption validation 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-09-20 00:29:43 +02:00
Andrzej Kurek
8ec9e136cf
ssl_tls: Add a flag indicating that encryption succeeded 
Protect against encryption skipping by introducing a new flag.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-09-20 00:29:43 +02:00
Andrzej Kurek
6c30be8e4b
ssl: call signature verification twice for non-restartable operations 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-09-20 00:29:43 +02:00
Andrzej Kurek
69bafce7a3
Improve the FI resistance in ssl_tls.c key switching 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-09-19 12:45:20 +02:00
Andrzej Kurek
f7df0d37ab
Reduce the size of used constant in ssl_tls.c 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-09-19 12:00:57 +02:00
Andrzej Kurek
a793237998
Calculate hashes of ssl encryption and decryption keys 
Optimize the key switching mechanism to set the key only if 
a different operation is performed with the context.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-09-19 08:04:05 +02:00
Andrzej Kurek
d81351b047
Change the default value of initialized cipher operation to NONE 
This way, an initialized cipher context but without a key set can be identified.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-09-19 04:07:03 +02:00
Andrzej Kurek
1175044156
Merge enc/dec cipher contexts in ssl transforms 
Store the raw encryption and decryption keys in transforms
to set them before each cipher operation. Add a config option
for this - MBEDTLS_SSL_TRANSFORM_OPTIMIZE_CIPHERS.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-09-17 23:51:58 +02:00
Shelly Liberman
f8d7e0112a
Merge pull request #3669 from shelib01/ec_key_gen_optimization 
replace user rand by platform rand in ecc delays
 2020-09-16 20:32:52 +03:00
Shelly Liberman
05beb9ac70 replace user rand by platform rand in ecc delays 
Signed-off-by: Shelly Liberman <shelly.liberman@arm.com>
 2020-09-16 18:58:50 +03:00
Andrzej Kurek
6f3a987ae3
Merge pull request #3640 from AndrzejKurek/fi-hash-instead-of-crc 
Swap out CRC calculation in AES in favour of a simple hash
 2020-09-03 15:21:47 +02:00
Andrzej Kurek
a00c3eeaca
Merge pull request #3619 from AndrzejKurek/fi-uecc-return-value 
Change the tinycrypt return values to be below 256
 2020-08-31 14:53:39 +02:00
Andrzej Kurek
858e4325d2
Merge pull request #3604 from AndrzejKurek/alias-memcmp-memequal 
Add a deprecated version of mbedtls_platform_memcmp.
 2020-08-24 15:26:23 +02:00
Andrzej Kurek
c87e91ce2b
Merge pull request #3553 from AndrzejKurek/crc-calculation-base 
Validate AES keys after each use checking CRC
 2020-08-13 12:42:54 +02:00
Piotr Nowicki
c2b682ab71
Merge pull request #3468 from piotr-now/fic_flow_monitor 
Add flow monitor for memory block operations
 2020-08-13 09:34:00 +02:00
Piotr Nowicki
305a5ec496 Checking in critical places if secured memset() and memcpy() was successful 
Signed-off-by: Piotr Nowicki <piotr.nowicki@arm.com>
 2020-08-12 15:22:20 +02:00
Piotr Nowicki
ea8e846fdc Add flow monitor for mbedtls_platform_memcpy() and mbedtls_platform_memmove() 
Signed-off-by: Piotr Nowicki <piotr.nowicki@arm.com>
 2020-08-12 15:22:06 +02:00
Piotr Nowicki
a6348edc23 Checking in critical places if the mbedtls_platform_zeroize() was successful 
Signed-off-by: Piotr Nowicki <piotr.nowicki@arm.com>
 2020-08-12 15:12:20 +02:00
Piotr Nowicki
ed840dbcd8 Add flow montitor to the mbedtls_platform_memset() 
Signed-off-by: Piotr Nowicki <piotr.nowicki@arm.com>
 2020-08-12 15:12:20 +02:00
Piotr Nowicki
2bb1376560
Merge pull request #3537 from piotr-now/platform_random 
Expanded the random number generator in the `platform_util.c` file
 2020-08-12 15:09:05 +02:00
Piotr Nowicki
26c33692b0 Fix CI failure. 
For ASanDbg tests of the earlier implementation of the
mbedtls_platform_random_in_range(), there was no case where ‘shift’
value was zero. Such a case generated a bit shift of 32, which is treated
as an error by ASanDbg. Increasing the ‘shift’ value by one ensures that
it will always be non-zero.

Signed-off-by: Piotr Nowicki <piotr.nowicki@arm.com>
 2020-08-11 16:41:34 +02:00
Piotr Nowicki
057daa3b28 Random delay can be disabled in configuration 
Use random delay depending on whether MBEDTLS_FI_COUNTERMEASURES is defined

Signed-off-by: Piotr Nowicki <piotr.nowicki@arm.com>
 2020-08-11 16:41:34 +02:00
Piotr Nowicki
77b7a7754c Expanded the random number generator in the platform_util.c file 
The earlier implementation had two problems: the random generator always
returned 0 if the MBEDTLS_ENTROPY_HARDWARE_ALT flag was not defined and there
was no protection needed if the HW RNG was malfunctioning. Both these problems
have been solved in this commit by adding the linear congruential generator algorithm.

Signed-off-by: Piotr Nowicki <piotr.nowicki@arm.com>
 2020-08-11 16:41:34 +02:00
Piotr Nowicki
8656fc6525 Change the value type in the mbedtls_platform_random_in_range() 
Signed-off-by: Piotr Nowicki <piotr.nowicki@arm.com>
 2020-08-11 16:38:25 +02:00
Piotr Nowicki
fa635dfaa1
Merge pull request #3448 from piotr-now/platform_util 
Renamed mbedtls_platform_memcmp() to mbedtls_platform_memequal()
 2020-08-11 14:30:35 +02:00
Andrzej Kurek
9539f831b2
Swap out CRC calculation in AES in favour of a simple hash 
XOR the key bytes upon setting and re-check hash during each use.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-08-10 20:46:48 -04:00
Andrzej Kurek
8fba6e99ce
Merge pull request #3532 from AndrzejKurek/fi-hmac-drbg-fixes 
Fi-related hmac_drbg fixes
 2020-08-10 19:02:25 +02:00
Andrzej Kurek
0305753d7a
Merge pull request #3477 from AndrzejKurek/aes-fake-key 
Use a fake random key in AES calculations
 2020-08-10 13:05:46 +02:00
Piotr Nowicki
e3c4ee51b2 Rename mbedtls_platform_memcmp() to mbedtls_platform_memequal() 
Signed-off-by: Piotr Nowicki <piotr.nowicki@arm.com>
 2020-08-10 12:41:00 +02:00
Andrzej Kurek
e6d8db0f41
Change the tinycrypt return values to be below 256 
Thanks to this change the produced ASM does not need an additional instruction
to place the constant value in a register, but can compare it directly.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-08-10 02:54:56 -04:00
Andrzej Kurek
8bb0839555
Add a deprecated version of mbedtls_platform_memcmp. 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-08-09 02:18:12 -04:00
Andrzej Kurek
e4f865d53c
Makefile: alphabetically order object files 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-08-08 19:08:26 -04:00
Andrzej Kurek
fba5921186
aes: validate keys using crc before encryption/decryption 
CRC is calculated when the key is set. This commit also adds new tests
for ecb encryption and decryption, simulating a fault injection after the key is set.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-08-08 19:06:44 -04:00
Andrzej Kurek
9df2b416b9
Add a CRC module to mbedtls and baremetal config 
Add a new CRC module along with some tests for it.
The table and the CRC function body is generated using pycrc v0.9.2. 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-08-08 02:10:52 -04:00
Shelly Liberman
c6319a70ab
Merge pull request #3514 from shelib01/fi_write_user_data 
Fi write user data
 2020-08-06 07:41:15 +03:00
Shelly Liberman
3799fc1578 Splitting buffers comment added 
Signed-off-by: Shelly Liberman <shelly.liberman@arm.com>
 2020-08-05 17:53:31 +03:00
Shelly Liberman
c6a7e6b0c4 Enhancement fixes 
Co-authored-by: Andrzej Kurek <andrzej.kurek@arm.com>
Signed-off-by: Shelly Liberman <shelly.liberman@arm.com>
 2020-08-05 15:40:15 +03:00
shelib01
4062d6ca68 Add user pointer and data size duplication to ssl context. 
Signed-off-by: Shelly Liberman <shelly.liberman@arm.com>
 2020-08-05 15:01:05 +03:00
Andrzej Kurek
e9cb642748
Merge pull request #3516 from AndrzejKurek/fi-pkparse-changes 
FI-related pkparse.c fixes
 2020-08-03 12:14:22 +02:00
Andrzej Kurek
7400fae7ee
Merge pull request #3510 from AndrzejKurek/fi-pk-fixes 
pk.c FI-related fixes
 2020-08-03 12:14:06 +02:00
Andrzej Kurek
898d330148
Merge pull request #3500 from AndrzejKurek/fi-sha256-fixes 
Introduce sha256 security review fixes
 2020-08-03 12:13:40 +02:00
Andrzej Kurek
84afe68ad4
Merge pull request #3509 from AndrzejKurek/fi-x509-changes 
x509.c: Remove one unnecessary cast
 2020-08-03 12:11:47 +02:00
Andrzej Kurek
4b700a3db3
Merge pull request #3456 from AndrzejKurek/aes-fi-improvements 
Minor AES module improvements
 2020-07-30 16:29:48 +02:00
Andrzej Kurek
7e6075b7fd
Merge pull request #3499 from AndrzejKurek/fi-duplicate-buffers-revert 
Revert a part of the sensitive information duplication changes
 2020-07-21 11:03:50 +02:00