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Author SHA1 Message Date
Andrzej Kurek
2e49d079d6
Describe the behaviour of buffer resizing on an out-of-memory error 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-10-22 11:16:25 +02:00
Andrzej Kurek
cd9a6ff3c1
Introduce additional flags for buffer upsizing and downsizing 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-10-22 11:12:07 +02:00
Andrzej Kurek
79db2f14da
Refactor the buffer resize feature to reduce codesize 
Extract a common part of the code to a function.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-10-20 17:11:54 +02:00
Andrzej Kurek
21afee2304
Merge pull request #3800 from AndrzejKurek/variable-buffers-baremetal 
Sideport the variable IO buffer size feature to baremetal
 2020-10-19 10:29:27 +02:00
Andrzej Kurek
f384495972
Sideport the variable IO buffer size feature to baremetal 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-10-17 00:55:17 +02:00
Andrzej Kurek
dd5ad6924e
Merge pull request #3785 from AndrzejKurek/m_tinycrypt_asm 
TinyCrypt ARM assembler and other optimisations
 2020-10-15 13:27:39 +02:00
Andrzej Kurek
d66d13eaa9
Add a no-strict build to armcc baremetal tests in all.sh 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-10-15 09:54:49 +02:00
Andrzej Kurek
b04208151b
tinycrypt: make asm optimizations optional for baremetal 
Disable asm optimizations for strict armcc baremetal builds.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-10-14 19:42:23 +02:00
Andrzej Kurek
db0e50ea70
Introduce MBEDTLS_OPTIMIZE_TINYCRYPT_ASM 
Make the ASM optimizations in tinycrypt optional.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-10-14 14:32:50 +02:00
Andrzej Kurek
7e62c31097
Guard the tinycrypt code with MBEDTLS_USE_TINYCRYPT 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
 2020-10-14 12:02:40 +02:00
Kevin Bracey
8b2014bdb6 Add .syntax divided markers 
Old GCC (pre-5?) natively use divided syntax, so we must put it back
after changing it.

More recent GCCs natively use unified syntax, and themselves are
surrounding our blocks with divided/unified directives for backwards
compatibility, so we don't need to restore for those.

Signed-off-by: Kevin Bracey <kevin.bracey@arm.com>
 2020-10-13 10:24:39 +03:00
Kevin Bracey
045e576e02 Adjust fixed-time arithmetic to not use boolean ops 
Signed-off-by: Kevin Bracey <kevin.bracey@arm.com>
 2020-10-12 18:09:04 +03:00
Kevin Bracey
99c64e142e Use builtin CLZ 
Signed-off-by: Kevin Bracey <kevin.bracey@arm.com>
 2020-10-12 18:09:04 +03:00
Kevin Bracey
3be252e252 vli_isZero and vli_clear assembly 
Signed-off-by: Kevin Bracey <kevin.bracey@arm.com>
 2020-10-12 18:09:04 +03:00
Kevin Bracey
4aea62569b More GCC assembly 
Signed-off-by: Kevin Bracey <kevin.bracey@arm.com>
 2020-10-12 18:09:04 +03:00
Kevin Bracey
06060330d8 Add GCC vli_rshift1 assembly 
Signed-off-by: Kevin Bracey <kevin.bracey@arm.com>
 2020-10-12 18:09:04 +03:00
Kevin Bracey
0a1884bba4 Use GCC extended assembler 
Naked functions and basic assembler don't seem to work reliably - basic
assembler is assumed to not change registers or memory, and there does
not appear to be any special handling of naked functions in this regard.

Signed-off-by: Kevin Bracey <kevin.bracey@arm.com>
 2020-10-12 18:09:04 +03:00
Kevin Bracey
e0f88d5140 Add GCC/Clang muladd assembly 
Signed-off-by: Kevin Bracey <kevin.bracey@arm.com>
 2020-10-12 18:09:04 +03:00
Kevin Bracey
84f31d3eaa Optimise muladd more 
Signed-off-by: Kevin Bracey <kevin.bracey@arm.com>
 2020-10-12 18:09:04 +03:00
Kevin Bracey
1959c18c69 tinycrypt: Add ARM assembler optimisations 
For ARM Compiler 5 only, provide assembler versions of vli_add, vli_sub,
vli_rshift1 and muladd.

Signed-off-by: Kevin Bracey <kevin.bracey@arm.com>
 2020-10-12 18:09:04 +03:00
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
Kevin Bracey
f40c79272f tinycrypt: use fast integer types 
Signed-off-by: Kevin Bracey <kevin.bracey@arm.com>
 2020-10-07 14:13:41 +03:00
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