Commit graph

7846 commits

Author SHA1 Message Date
Gilles Peskine
cd74298c83 mbedtls_cipher_check_tag: jump on error for more robustness to refactoring
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-12-13 17:01:25 +01:00
Gilles Peskine
a4174312da Initialize hash_len before using it
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-12-13 14:38:40 +01:00
Gilles Peskine
14d5fef6b7 PKCS#1v1.5 signature: better cleanup of temporary values
Zeroize temporary buffers used to sanity-check the signature.

If there is an error, overwrite the tentative signature in the output
buffer.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-12-13 12:37:55 +01:00
Gilles Peskine
f0fd4c3aee mbedtls_ssl_parse_finished: zeroize expected finished value on error
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-12-13 12:36:15 +01:00
Gilles Peskine
c2f7b75a71 mbedtls_ssl_cookie_check: zeroize expected cookie on cookie mismatch
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-12-13 12:35:08 +01:00
Gilles Peskine
60aebec47e PSA hash verification: zeroize expected hash on hash mismatch
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-12-13 12:33:18 +01:00
Gilles Peskine
e7835d92c1 mbedtls_cipher_check_tag: zeroize expected tag on tag mismatch
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-12-13 12:32:43 +01:00
Dave Rodgman
050ad4bb50
Merge pull request #5313 from gilles-peskine-arm/missing-ret-check-mbedtls_md_hmac
Check HMAC return values
2021-12-13 10:51:27 +00:00
Gilles Peskine
ecf6bebb9c Catch failures of md_hmac operations
Declare mbedtls_md functions as MBEDTLS_CHECK_RETURN_TYPICAL, meaning that
their return values should be checked.

Do check the return values in our code. We were already doing that
everywhere for hash calculations, but not for HMAC calculations.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-12-11 15:00:57 +01:00
Gilles Peskine
d5ba50e239 Zeroize local MAC variables
Zeroize local MAC variables used for CBC+HMAC cipher suites. In encryption,
this is just good hygiene but probably not needed for security since the
data protected by the MAC that could leak is about to be transmitted anyway.
In DTLS decryption, this could be a security issue since an adversary could
learn the MAC of data that they were trying to inject. At least with
encrypt-then-MAC, the adversary could then easily inject a datagram with
a corrected packet. TLS would still be safe since the receiver would close
the connection after the bad MAC.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-12-11 14:59:45 +01:00
Ronald Cron
db6adc5aad ssl: Fix some compilation guards for TLS 1.3 signature algorithms
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-12-10 14:25:35 +01:00
Ronald Cron
6f135e1148 Rename MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL to MBEDTLS_SSL_PROTO_TLS1_3
As we have now a minimal viable implementation of TLS 1.3,
let's remove EXPERIMENTAL from the config option enabling
it.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-12-10 13:47:55 +01:00
Dave Rodgman
76a2b306ac
Merge pull request #4981 from yuhaoth/pr/add-debug-helpers-generated
Add debug helpers generated
2021-12-10 11:56:55 +00:00
Manuel Pégourié-Gonnard
4525cce691
Merge pull request #5256 from yuhaoth/pr/clean-up-secrets-after-done
TLS1.3 MVP: Erase secrets when they are not necessary anymore.
2021-12-10 12:48:25 +01:00
Ronald Cron
6b07916e40
Merge pull request #5230 from ronald-cron-arm/tls13_ccs_client
Add initial support for "Middlebox Compatibility Mode"
2021-12-10 11:58:05 +01:00
Jerry Yu
a5563f6115 move position of base_key init
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 18:14:36 +08:00
Jerry Yu
b737f6a9be move base_key init
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 17:55:59 +08:00
Ronald Cron
574ace48d8 Remove unnecessary blank line
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-12-10 10:27:25 +01:00
Jerry Yu
9c07473ebc fix various issues
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 17:12:43 +08:00
Jerry Yu
889b3b76da fix clang build fail
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 12:57:45 +08:00
Jerry Yu
d05e1cec4b fix build fail on check_*
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 12:47:03 +08:00
Jerry Yu
e6369b0061 fix test_cmake_as_package fail
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 12:47:03 +08:00
Jerry Yu
eb96fb508e Add cmake generator
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 12:47:03 +08:00
Jerry Yu
e3b3412bc4 Add tests for enum helper
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 12:45:52 +08:00
Jerry Yu
e78ee99624 add enum value to string helpers
Only add helpers for enum in `ssl.h`.

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 12:43:30 +08:00
Jerry Yu
4a2fa5d0aa Move erase handshake secrets
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 10:37:14 +08:00
Jerry Yu
27224f58be fix coding style issue
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 10:33:27 +08:00
Jerry Yu
5132771f5f Revert "fix possible security leak for counter"
This reverts commit 8aab77e11e2aebec09dc9d682b16373771471fe0.

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 10:33:27 +08:00
Jerry Yu
7ca3054795 move zerioize tls13_hs_secrets
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 10:33:27 +08:00
Jerry Yu
23ab7a46a3 move zeroize master secrets
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 10:33:27 +08:00
Jerry Yu
2c70a39d97 move zeroize randbytes
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 10:33:27 +08:00
Jerry Yu
bdfd01835a fix compile break after merge
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 10:33:27 +08:00
Jerry Yu
a986e9faac Clean handshake secrets
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 10:33:27 +08:00
Jerry Yu
d103bdb01d Clean randbytes
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 10:33:27 +08:00
Jerry Yu
745db226db fix possible security leak for counter
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-10 10:33:27 +08:00
Gilles Peskine
d5b2a59826
Merge pull request #5047 from paul-elliott-arm/psa-m-aead-ccm
PSA Multipart AEAD CCM Internal implementation and tests.
2021-12-09 14:49:42 +01:00
Ronald Cron
d4c64027a5 tls13: Move state transition after sending CCS to ssl_tls13_client.c
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-12-09 13:40:22 +01:00
Ronald Cron
49ad6197ca Add injection of dummy's ChangeCipherSpec for middlebox compatibility
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-12-09 13:40:22 +01:00
Ronald Cron
7e38cba993 Add incoming ChangeCipherSpec filtering in TLS 1.3
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-12-09 13:40:22 +01:00
Manuel Pégourié-Gonnard
c38c1f2411
Merge pull request #5268 from gilles-peskine-arm/struct_reordering_3.0
Reorder structure fields to maximize usage of immediate offset access
2021-12-09 12:54:09 +01:00
Manuel Pégourié-Gonnard
d7d740eb6e
Merge pull request #5236 from gabor-mezei-arm/4926_base64_move_constant-time_functions
Move base64 constant-time functions to the new module
2021-12-09 12:40:18 +01:00
Manuel Pégourié-Gonnard
b873577fc3
Merge pull request #5240 from duckpowermb/development
[session] fix a session copy bug
2021-12-09 09:23:23 +01:00
Gilles Peskine
cfe74a37b9 mbedtls_ssl_handshake_params: move ecrs_ctx back further
"mbedtls_ssl_handshake_params: reorder fields to save code size" moved this
filed earlier along with byte-sized fields that should be in the 128-element
access window on Arm Thumb. This took away precious room in the 128-byte
window. Move it back further out.

Results (same architecture, config-suite-b.h + MBEDTLS_ECDH_LEGACY_CONTEXT +
MBEDTLS_ECP_RESTARTABLE):
library/ssl_cli.o: 2860 -> 2816 (diff: 44)
library/ssl_msg.o: 3080 -> 3076 (diff: 4)
library/ssl_srv.o: 3340 -> 3300 (diff: 40)
library/ssl_tls.o: 6546 -> 6478 (diff: 68)

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-12-08 18:38:51 +01:00
Gilles Peskine
41139a2541 mbedtls_ssl_handshake_params: move group_list earlier to save code size
Placing group_list earlier seems to help significantly, not just as a matter
of placing it in the 128-element (512-byte) access window.

Results (arm-none-eabi-gcc 7.3.1, build_arm_none_eabi_gcc_m0plus build):
library/ssl_cli.o: 19559 -> 19551 (diff: 8)
library/ssl_msg.o: 24690 -> 24674 (diff: 16)
library/ssl_srv.o: 20418 -> 20406 (diff: 12)
library/ssl_tls.o: 20555 -> 20519 (diff: 36)
library/ssl_tls13_client.o: 7244 -> 7240 (diff: 4)
library/ssl_tls13_generic.o: 4693 -> 4697 (diff: -4)

Results (same architecture, config-suite-b.h + MBEDTLS_ECDH_LEGACY_CONTEXT +
MBEDTLS_ECP_RESTARTABLE):
library/ssl_cli.o: 2864 -> 2860 (diff: 4)
library/ssl_tls.o: 6566 -> 6546 (diff: 20)

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-12-08 18:26:55 +01:00
Ronald Cron
1865585eab
Merge pull request #5212 from yuhaoth/pr/add-tls13-compat-testcases
TLS1.3 MVP:Add tls13 compat, not supported version , certificaterequest and HRR tests
2021-12-08 14:56:39 +01:00
Gilles Peskine
392113434a
Merge pull request #5263 from ronald-cron-arm/psa-test-driver_3.x
Forward port to 3.x: Introduce PSA test driver library to test PSA configuration
2021-12-07 12:52:20 +01:00
Dave Rodgman
351c71b7f2 Fix builds when config.h only defines MBEDTLS_BIGNUM_C
Fixes #4929

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2021-12-06 17:50:53 +00:00
Jerry Yu
6eaa41c15e Fix overflow error
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-12-06 18:16:30 +08:00
Ronald Cron
f467d6306c psa: Fix obsolete code guard
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-12-06 07:50:27 +01:00
Ronald Cron
fd25ddbf58 psa: Fix and improve comments
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-12-06 07:50:27 +01:00