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Author SHA1 Message Date
Andrzej Kurek
3016de3eeb pk_wrap: rework signature extraction to work with small r and s values 
There is a probability that r will be encoded as 31 or less bytes in DER,
so additional padding is added in such case.
Added a signature-part extraction function to tidy up the code further.
 2018-11-22 13:37:14 -05:00
Manuel Pégourié-Gonnard
7b7808cc76 Add tests for ECDSA verify with short r, s values 
This is intended to test transcoding the signature to the format expected by
PSA (fixed-length encoding of r, s) when r and s have respectively:
- full length with initial null byte
- full length without initial null byte
- non-full length with initial null byte
- non-full length without initial null byte

The signatures were generated using:

programs/pkey/pk_sign tests/data_files/server5.key foo

where foo is an empty file, and with a variant of one of the following patches
applied:

diff --git a/library/ecdsa.c b/library/ecdsa.c
index abac015cebc6..e4a27b044516 100644
--- a/library/ecdsa.c
+++ b/library/ecdsa.c
@@ -305,7 +305,9 @@ static int ecdsa_sign_restartable( mbedtls_ecp_group *grp,
                 ret = MBEDTLS_ERR_ECP_RANDOM_FAILED;
                 goto cleanup;
             }
+            printf("\ngenerating r...\n");

+gen:
             MBEDTLS_MPI_CHK( mbedtls_ecp_gen_privkey( grp, pk, f_rng, p_rng ) );

 #if defined(MBEDTLS_ECP_RESTARTABLE)
@@ -317,6 +319,11 @@ mul:
             MBEDTLS_MPI_CHK( mbedtls_ecp_mul_restartable( grp, &R, pk, &grp->G,
                                                   f_rng, p_rng, ECDSA_RS_ECP ) );
             MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( pr, &R.X, &grp->N ) );
+
+            size_t bits = mbedtls_mpi_bitlen( pr );
+            printf("%zu ", bits);
+            if( bits != 255 )
+                goto gen;
         }
         while( mbedtls_mpi_cmp_int( pr, 0 ) == 0 );

or:

diff --git a/library/ecdsa.c b/library/ecdsa.c
index abac015cebc6..d704376e0c42 100644
--- a/library/ecdsa.c
+++ b/library/ecdsa.c
@@ -305,7 +305,9 @@ static int ecdsa_sign_restartable( mbedtls_ecp_group *grp,
                 ret = MBEDTLS_ERR_ECP_RANDOM_FAILED;
                 goto cleanup;
             }
+            printf("\ngenerating r...\n");

+gen:
             MBEDTLS_MPI_CHK( mbedtls_ecp_gen_privkey( grp, pk, f_rng, p_rng ) );

 #if defined(MBEDTLS_ECP_RESTARTABLE)
@@ -353,6 +355,11 @@ modn:
         MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( s, pk, &grp->N ) );
         MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( s, s, &e ) );
         MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( s, s, &grp->N ) );
+
+            size_t bits = mbedtls_mpi_bitlen( s );
+            printf("%zu ", bits);
+            if( bits != 247 )
+                goto gen;
     }
     while( mbedtls_mpi_cmp_int( s, 0 ) == 0 );

with the value edited manually between each run to get the desired bit length.
 2018-11-22 13:37:14 -05:00
Andrzej Kurek
45fc464156 pk_wrap: improve error codes returned from ecdsa_verify_wrap 
Use the shared PSA utilities to translate errors.
 2018-11-22 13:37:14 -05:00
Andrzej Kurek
ca6330992e pk_wrap: switch to helper functions defined in psa_util.h 
Remove duplicated helper functions.
Remove an unnecessary call to psa_crypto_init().
 2018-11-22 13:37:14 -05:00
Andrzej Kurek
510ee70501 pk_wrap: test if a valid md_alg is passed to ecdsa_verify_wrap 
Adjust tests to pass a valid algorithm
 2018-11-22 13:37:14 -05:00
Andrzej Kurek
2f69b1a059 pk_wrap: destroy key slot on errors with policy or key importing 2018-11-22 13:37:14 -05:00
Andrzej Kurek
c097b0fded pk_wrap: add a check for equal signature parts 2018-11-22 13:37:14 -05:00
Andrzej Kurek
f8c94a811a pk_wrap: check if curve conversion is successful 2018-11-22 13:37:14 -05:00
Andrzej Kurek
6d49ae9223 pk_wrap: nullify the signature pointer on error in extract_ecdsa_sig 
Fix a double free error in ecdsa_verify_wrap
 2018-11-22 13:37:14 -05:00
Andrzej Kurek
1e3b6865d7 pk_wrap: cosmetic changes 
Adjust whitespaces and variable names
 2018-11-22 13:37:14 -05:00
Andrzej Kurek
39d1f4b29f pk_wrap.c: add support for ecdsa signature verification using PSA 
Use PSA internally to verify signatures.
Add a conversion to a raw signature format.
 2018-11-22 13:37:14 -05:00
Hanno Becker
12bd57b8c8 Refer to PSA through MBEDTLS_USE_PSA_CRYPTO, not USE_PSA, in all.sh 2018-11-22 16:27:57 +00:00
Hanno Becker
fc359fd837 Remove double white space 2018-11-22 16:27:57 +00:00
Hanno Becker
47a6291445 Use MBEDTLS_PSA_UTIL_H instead of MBEDTLS_PSA_COMPAT_H in psa_util.h 
This is still an artifact from when psa_util.h was called psa_compat.h.
 2018-11-22 16:27:57 +00:00
Hanno Becker
56a78dd4ad State explicitly that any API depending on PSA is unstable 2018-11-22 16:27:57 +00:00
Hanno Becker
77030426a0 Update VisualC files 2018-11-22 16:27:57 +00:00
Hanno Becker
4d9e1e0ac4 Improve documentation of mbedtls_psa_err_translate_pk() 2018-11-22 16:27:57 +00:00
Hanno Becker
dec64735e2 Add AEAD tag length parameter to mbedtls_psa_translate_cipher_mode() 
In case of AEAD ciphers, the cipher mode (and not even the entire content
of mbedtls_cipher_info_t) doesn't uniquely determine a psa_algorithm_t
because it doesn't specify the AEAD tag length, which however is included
in psa_algorithm_t identifiers.

This commit adds a tag length value to mbedtls_psa_translate_cipher_mode()
to account for that ambiguity.
 2018-11-22 16:27:57 +00:00
Hanno Becker
14f78b03bb Add function to translate PSA errors to PK module errors 2018-11-22 16:27:57 +00:00
Hanno Becker
639a4320ca Fix Doxygen annotation in psa_util.h 2018-11-22 16:27:57 +00:00
Hanno Becker
06b6f34e9f Initialize PSA Crypto implementation in ssl_server2 2018-11-22 16:27:57 +00:00
Hanno Becker
50955d1c18 Initialize PSA Crypto implementation in ssl_client2.c 2018-11-22 16:27:56 +00:00
Hanno Becker
eba9993171 Initialize PSA Crypto implementation at the start of each test suite 2018-11-22 16:27:56 +00:00
Hanno Becker
5f48818712 Make PSA utility functions static inline 
Compilers warn about unused static functions.
 2018-11-22 16:27:56 +00:00
Hanno Becker
28b9d35904 Add PSA-to-Mbed TLS translations for cipher module 2018-11-22 16:27:56 +00:00
Hanno Becker
560aeaf26b Add internal header for PSA utility functions 
This commit adds the header file mbedtls/psa_util.h which contains
static utility functions `mbedtls_psa_xxx()` used in the integration
of PSA Crypto into Mbed TLS.

Warning: These functions are internal only and may change at any time.
 2018-11-22 16:27:56 +00:00
Manuel Pégourié-Gonnard
dde4442581 Add build using PSA to all.sh 2018-11-22 16:27:52 +00:00
Manuel Pégourié-Gonnard
26fd730876 Add config option for X.509/TLS to use PSA 2018-11-22 16:25:36 +00:00
Gilles Peskine
a678f233a7
Merge pull request #197 from netanelgonen/entropy-inject 
Add entropy inject API (#197)
 2018-11-21 19:21:05 +01:00
avolinski
0d2c266c06 change MBEDTLS_RANDOM_SEED_ITS define to be PSA_CRYPTO_ITS_RANDOM_SEED_UID 2018-11-21 17:31:07 +02:00
avolinski
1c66205df6 Remove trailing space in psa_crypto.c 2018-11-21 16:54:09 +02:00
Gilles Peskine
83146e10bb
Merge pull request #211 from ARMmbed/bug_fix_210 
Fix memory allocation check in psa_save_generated_persistent_key (#211)
 2018-11-21 15:51:07 +01:00
avolinski
13beb100c2 Adjust psa entropy inject tests to take as minimum seed size 
the maximum of MBEDTLS_ENTROPY_MIN_PLATFORM and MBEDTLS_ENTROPY_BLOCK_SIZE
 2018-11-21 16:24:53 +02:00
avolinski
7cc8229d80 Replace MBED_RANDOM_SEED_ITS_UID with MBEDTLS_RANDOM_SEED_ITS_UID 
Update mbedtls_psa_inject_entropy function documentation
 2018-11-21 16:24:53 +02:00
avolinski
4d27c94aee Adding testcase for PSA validate entropy injection: bad, too small using MBEDTLS_ENTROPY_MIN_PLATFORM 2018-11-21 16:24:53 +02:00
Netanel Gonen
21f37cbbec Add Tests for psa crypto entropy incjection 
Adjust code to handle and work with MBEDTLS_ENTROPY_BLOCK_SIZE definition option
 2018-11-21 16:24:52 +02:00
Gilles Peskine
ee2ffd311b Document the maximum seed size as well as the minimum 2018-11-21 16:23:42 +02:00
Gilles Peskine
0338ded2f4 Improve documentation of mbedtls_psa_inject_entropy 
Explain what the function does, why one would use it, how to use it,
how to handle its input, and what the status codes mean.
 2018-11-21 16:23:42 +02:00
Netanel Gonen
212a793217 add MBEDTLS_PSA_HAS_ITS_IO to config.h 2018-11-21 16:23:42 +02:00
Netanel Gonen
9468bb241c Add Tests for psa crypto entropy incjection 2018-11-21 16:23:41 +02:00
Netanel Gonen
2bcd312cda Add entropy injection function to psa cripto APIs 2018-11-21 16:15:14 +02:00
itayzafrir
910c76b3d1 Check that memory allocation was successful in psa_save_generated_persistent_key 2018-11-21 16:10:33 +02:00
Gilles Peskine
3d5d8372a5
Merge pull request #198 from ARMmbed/psa_crypto_its 
PSA Crypto Storage backend implementation over PSA ITS APIs (#198)
 2018-11-21 15:04:03 +01:00
Jaeden Amero
dbb83ac5f7
Merge pull request #194 from ARMmbed/dev/Patater/enable-use-as-submodule-only 
Enable use as submodule only (no removal of non-crypto)
 2018-11-21 12:53:12 +00:00
Jaeden Amero
3c7cc5eb18 Makefile: Install PSA headers 
When running `make install`, it can be desirable for the PSA Crypto header
files to get installed as well, so that the PSA portions of the library are
usable.
 2018-11-21 12:17:31 +00:00
Jaeden Amero
852dac2df8 README: Update with the CMake build option 
Note that one can also use CMake and doesn't strictly require GNU Make. For
instance, telling CMake to output Visual Studio project files and using
those would preclude the need for GNU Make.
 2018-11-21 12:17:31 +00:00
Jaeden Amero
a49ba5ea5f README: Specify that C99 is required 2018-11-21 12:17:31 +00:00
Jaeden Amero
11293ccced README: Update with how to use as a subproject 2018-11-21 12:17:31 +00:00
Jaeden Amero
c6e4ab00a8 Use parent module includes when used as a submodule 
For Makefiles, enable overriding where includes can come from in order to
enable the parent module to set the include path. This allows the parent
module to specify that its config.h should be used, even when the submodule
when built standalone would use a different config.h.

For CMake, always look in the parent's include folder and our own. List the
parent's include folder first, so that preference is given to parent
include files.
 2018-11-21 12:17:31 +00:00
Jaeden Amero
74a04cdd59 Remove exporter script 
We no longer need an exporter script as we'll use our existing tooling in
the top level directory for builds and releases.
 2018-11-21 12:17:29 +00:00