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Author SHA1 Message Date
Gilles Peskine 0ff4b0f7f9 psa_import_key: validate symmetric key size 
When importing a symmetric key, validate that the key size is valid
for the given key type.

Non-supported key types may no longer be imported.
 2018-09-12 16:22:51 +03:00
Gilles Peskine e3b07d81d6 Fix build without CMAC 
Add missing guard for MBEDTLS_CMAC_C.
 2018-09-12 16:22:51 +03:00
Gilles Peskine 828ed149d5 Rename MBEDTLS_xxx macros in psa_crypto.c to placate check-names.sh 2018-09-12 16:22:51 +03:00
Gilles Peskine 34ef7f5a55 Check the curve of an elliptic curve key on import 
psa_import_key must check that the imported key data matches the
expected key type. Implement the missing check for EC keys that the
curve is the expected one.
 2018-09-12 16:19:04 +03:00
Gilles Peskine b3e6e5deeb Rename hash max sizes for consistency 
Use "hash" throughout the library, not "md" as in Mbed TLS.
 2018-09-12 16:19:04 +03:00
Gilles Peskine 7bcfc0a9ae Be more consistent about blank lines 2018-09-12 16:18:04 +03:00
Gilles Peskine 803ce7402a Change sizeof(type) to sizeof(variable) 2018-09-12 16:18:04 +03:00
Gilles Peskine c1bb6c8dcc Formatting improvements 
Avoid lines longer than 80 columns.

Remove some redundant parentheses, e.g. change
    if( ( a == b ) && ( c == d ) )
to
    if( a == b && c == d )
which makes lines less long and makes the remaining parentheses more
relevant.

Add missing parentheses around return statements.

There should be no semantic change in this commit.
 2018-09-12 16:18:02 +03:00
Gilles Peskine 2d2778650b Normalize whitespace 
Normalize whitespace to Mbed TLS standards. There are only whitespace
changes in this commit.
 2018-09-12 16:15:52 +03:00
Gilles Peskine 6de7a179c8 Fix file permissions 
Some files were marked as executable but shouldn't have been.
 2018-09-12 16:13:49 +03:00
Nir Sonnenschein aa5aea0bac fix spaces and add braces 2018-09-12 16:13:49 +03:00
Nir Sonnenschein e9664c30f0 space and style fixes 2018-09-12 16:13:49 +03:00
Nir Sonnenschein 9627241beb change macro PSA_HASH_BLOCK_SIZE to function psa_get_hash_block_size 2018-09-12 16:13:49 +03:00
Nir Sonnenschein 5ca6547b77 Renamed hmac_ctx to opad and removed null check. 
this array is now part of the struct and not dynamically allocated
so it can't be null.
 2018-09-12 16:13:49 +03:00
Nir Sonnenschein caec7f0c49 Fix rename issue missed by re-base 2018-09-12 16:13:49 +03:00
Gilles Peskine d223b52a9a psa_hmac_start: reduce stack usage 
Store the temporary key in the long-key case (where the key is first
hashed) directly into ipad. This reduces the stack usage a little, at
a slight cost in complexity.
 2018-09-12 16:13:49 +03:00
Gilles Peskine 6a0a44e167 HMAC: clean up local variables containing key material 
In psa_mac_start, the hash of the key and ipad contain material that
can be used to make HMAC calculations with the key, therefore they
must be wiped.

In psa_mac_finish_internal, tmp contains an intermediate value which
could reveal the HMAC. This is definitely sensitive in the verify case,
and marginally sensitive in the finish case (it isn't if the hash
function is ideal, but it could make things worse if the hash function
is partially broken).
 2018-09-12 16:13:49 +03:00
Gilles Peskine c102e3ce4b psa_hmac_start: simplify key_length logic in hash-the-key case 2018-09-12 16:13:49 +03:00
Gilles Peskine e1bc6800cc psa_hmac_start: remove useless casts 2018-09-12 16:13:49 +03:00
Gilles Peskine 7e454bc19f Split out CMAC and HMAC code into auxiliary functions 
Split algorithm-specific code out of psa_mac_start. This makes the
function easier to read.

The behavior is mostly unchanged. In a few cases, errors before
setting a key trigger a context wipe where they didn't. This is a
marginal performance loss but only cases that are an error in caller
code.
 2018-09-12 16:13:49 +03:00
Gilles Peskine 99bc649760 Normalize whitespace to Mbed TLS standards 
Only whitespace changes in this commit.
 2018-09-12 16:13:49 +03:00
Gilles Peskine ef057ac8ed Remove dead code 
Remove an unused function and an unused variable. Now the code builds
with gcc -Wall -Wextra -Werror.
 2018-09-12 16:13:49 +03:00
Nir Sonnenschein 084832d65f replace get_block_size_from_hash_algorithm with PSA_HASH_BLOCK_SIZE macro 2018-09-12 16:13:49 +03:00
Nir Sonnenschein 35dfbf4601 change hmac context to use statically allocated memory 
1. removed dynamic allocation of stack context
2. moved ipad to stack
3. added defines for maximal sizes
 2018-09-12 16:13:49 +03:00
Nir Sonnenschein 0c9ec53a10 remove reliance on md_info context for hash information 
1. remove reliance on md_info context for hash information by decoding locally
2. remove block_size field in context as this is dynamically computed
 2018-09-12 16:13:49 +03:00
Nir Sonnenschein eeace0bf7f Code style fix : changed keylen to key_length 2018-09-12 16:13:49 +03:00
Nir Sonnenschein 7810be273a Code correction: remove unneeded sizeof 2018-09-12 16:13:49 +03:00
Nir Sonnenschein dcd636a73f Commit changes to hmac to not use MD abstraction 
this PR is part of efforts to use "lower level" mbedTLS APIs vs "higher level" abstract APIs.
 2018-09-12 16:13:49 +03:00
Gilles Peskine 8605428dcf Merge remote-tracking branch 'psa/pr/27' into feature-psa 2018-09-05 12:46:19 +03:00
Gilles Peskine c4def2f228 Add input length check in psa_asymmetric_decrypt 
Remove output size check which is not needed here and was copypasta.

Add non-regression tests.
 2018-09-05 12:44:18 +03:00
Gilles Peskine b75e4f1314 Remove ECC boilerplate in asymmetric encrypt/decrypt 
We don't have any encryption algorithm using ECC keys at the moment.
 2018-09-05 12:44:17 +03:00
Gilles Peskine beb4948d10 Add RSA PSS verification (untested) 2018-09-05 12:44:17 +03:00
Gilles Peskine 625b01c9c3 Add OAEP placeholders in asymmetric encrypt/decrypt 
Replace PSS placeholders by OAEP placeholders. PSS is a signature
algorithm, not an encryption algorithm.

Fix typo in PSA_ALG_IS_RSA_OAEP_MGF1.
 2018-09-05 12:44:17 +03:00
Gilles Peskine 8b18a4fef3 Rename verify_RSA_hash_input_and_get_md_type 
Give it a shorter name that's more in line with our naming conventions.
 2018-09-05 12:44:17 +03:00
Gilles Peskine 61b91d4476 Normalize whitespace to Mbed TLS standards 
Only whitespace changes in this commit.
 2018-09-05 12:44:17 +03:00
Nir Sonnenschein 1c2a7ea4e2 Allow psa_asymmetric_verify and psa_asymmetric_encrypt to use public key only. 2018-09-05 12:44:17 +03:00
Nir Sonnenschein d708260de4 add key policy enforcement implementation 
add checks that keys have been set for the correct usage for asymmetric
functions.
 2018-09-05 12:44:17 +03:00
Nir Sonnenschein ca466c89b0 Set output length to safe value 2018-09-05 12:44:17 +03:00
Nir Sonnenschein c460291714 Re-Add ECC verification code which was not properly merged in re-base. 2018-09-05 12:44:17 +03:00
Nir Sonnenschein 4db79eb36b Extract common code 
Make code easier to maintain.
 2018-09-05 12:44:17 +03:00
Nir Sonnenschein 717a040df5 Remove duplicate / unneeded code 
1. remove duplicate function introduced by re-base
2. remove unneeded code
 2018-09-05 12:44:17 +03:00
Gilles Peskine 5b051bc608 Remove trailing whitespace 
Only horizontal whitespace changes in this commit.
 2018-09-05 12:44:12 +03:00
Gilles Peskine 6afe789d4c Finish renaming around PSA_ALG_IS_RSA_PKCS1V15 
Now the code compiles. Some OAEP and PSS macros may still need to be fixed.
 2018-09-05 12:41:53 +03:00
Gilles Peskine d6125ca63b Merge remote-tracking branch 'psa/pr/24' into feature-psa 2018-09-05 12:41:53 +03:00
Nir Sonnenschein 4f594eca40 remove check for key pair (public key should be enough for verification) 2018-09-05 12:41:53 +03:00
Nir Sonnenschein 7f5a31915b code fixes for internal code review: 
1. change to correct error code
2. removed unneeded comment
 2018-09-05 12:41:53 +03:00
Nir Sonnenschein 39e59144f6 added support for PKCSv1.5 signature verification and encryption/decryption and very basic tests. 2018-09-05 12:41:53 +03:00
Gilles Peskine bb1072f642 Fix use of mbedtls_cipher_info_from_psa 
One branch added an extra argument, the other branch added a call of
this function. Pass the extra argument on the code from the other
branch.
 2018-09-05 12:41:52 +03:00
Gilles Peskine 84861a95ca Merge remote-tracking branch 'psa/psa-wrapper-apis-aead' into feature-psa 2018-09-05 12:41:52 +03:00
Gilles Peskine 154bd95131 psa_destroy_key: return SUCCESS on an empty slot 
Do wipe the slot even if it doesn't contain a key, to erase any metadata.
 2018-09-05 12:41:52 +03:00
Gilles Peskine 71bb7b77f0 Switch PSA_HASH_FINAL_SIZE to PSA_HASH_SIZE 
Make this macro work on derived algorithms as well (HMAC,
hash-and-sign, etc.).
 2018-09-05 12:41:52 +03:00
mohammad1603 fc614b1e0e fix parentheses 2018-09-05 12:41:52 +03:00
mohammad1603 e109f21638 remove unnecessary check for block size 2018-09-05 12:41:52 +03:00
mohammad1603 a1d9801683 add slot validation 2018-09-05 12:41:52 +03:00
mohammad1603 e3cb8a8d8b return PSA_ERROR_BUFFER_TOO_SMALL intead of PSA_ERROR_INVALID_ARGUMENT 2018-09-05 12:41:52 +03:00
mohammad1603 6b4d98cf78 remove trailing spaces 2018-09-05 12:41:52 +03:00
mohammad1603 5ed0621dd4 aligned with coding standards - line length 2018-09-05 12:41:52 +03:00
mohammad1603 f14394b25f add policy checks 2018-09-05 12:41:52 +03:00
mohammad1603 96910d807e fix block size depending on algorithm 2018-09-05 12:41:51 +03:00
mohammad1603 60a64d079a remove unnecessary argument to the psa_aead_unpadded_locate_tag function 2018-09-05 12:41:51 +03:00
mohammad1603 15223a8b89 write the tag directly on the ciphertext buffer. 2018-09-05 12:41:51 +03:00
mohammad1603 4fc744f8af change the check of block size for all supported algorithms 2018-09-05 12:41:51 +03:00
mohammad1603 0f21465175 use mbedtls_cipher_info_from_psa to get cipher ID 2018-09-05 12:41:51 +03:00
mohammad1603 f58aa6ade6 use memset instead of mbedtils_zeroize 2018-09-05 12:41:51 +03:00
mohammad1603 554faad260 return NOT_SUPPORTED instead of INVLID_ARGUMENT 2018-09-05 12:41:51 +03:00
mohammad1603 95893f834d remove usless cast 2018-09-05 12:41:51 +03:00
mohammad1603 f08a550e68 set output length to zero to cover output length in error case 2018-09-05 12:41:51 +03:00
mohammad1603 f4f0d612ba change mbedtls_cipher_info_from_psa to provide cipher_id also 2018-09-05 12:41:51 +03:00
mohammad1603 9375f8403a fix code offsets after rebase 2018-09-05 12:41:51 +03:00
Gilles Peskine ee652a344c Fix psa_aead_decrypt to read the tag at the end of the ciphertext 2018-09-05 12:41:51 +03:00
Gilles Peskine a40d77477d Whitespace fixes 
Changed indentation to match Mbed TLS style. Wrapped some lines to 80 columns.
 2018-09-05 12:41:51 +03:00
mohammad1603 39574652ae add else for not supported algorithm 2018-09-05 12:38:18 +03:00
mohammad1603 5c8845f563 return invalid argument for unsupported algorithms 2018-09-05 12:38:18 +03:00
mohammad1603 e58e68458e fix condition over key type 2018-09-05 12:38:18 +03:00
mohammad1603 17638efc46 remove unused variable 2018-09-05 12:38:18 +03:00
mohammad1603 dad36fa855 add Key and Algorithm validation 2018-09-05 12:38:18 +03:00
mohammad1603 a7e6df76ea Validation fixes for key_type 2018-09-05 12:38:18 +03:00
mohammad1603 4f5eb7cb54 Fill the the output buffer with zero data in case of failure 2018-09-05 12:38:18 +03:00
mohammad1603 6bbd8c75dc Remove unnecessary cast 
Remove unnecessary cast
 2018-09-05 12:38:18 +03:00
mohammad1603 db6247315f Parameters validation fixes 
Fix key_type validation test and no need to ask for place for tag in decryption
 2018-09-05 12:38:18 +03:00
mohammad1603 ce5cba9a6a unify the concatenation of the tag and update output length 2018-09-05 12:38:18 +03:00
mohammad1603 9e5a515aa8 Fix parameter validation 2018-09-05 12:38:18 +03:00
mohammad1603 47ddf3d544 Concatenate the tag to the output buffer 
Concatenate the tag to the output buffer.
 2018-09-05 12:38:18 +03:00
mohammad1603 5955c98779 Initial implementation of the AEAD decrypt/encrypt APIs 
Initial implementation for the AEAD APIs, missing the following:
* Concatenation of the tag to the output buffer.
* Updated documentation of the new functions.
* argument validations
* tests
 2018-09-05 12:38:18 +03:00
Gilles Peskine 3aa8efb230 Merge remote-tracking branch 'psa/psa-wrapper-apis-march-12' into feature-psa 2018-09-05 12:38:17 +03:00
Gilles Peskine 2c5219a06d Whitespace normalization 
No semantic change.
 2018-09-05 12:14:29 +03:00
Gilles Peskine 5351420b3e Use block local variable for padding_mode for readability 
No intended behavior change.
 2018-09-05 12:14:29 +03:00
Moran Peker 7cb22b8327 abort operation before return + fix error checks 2018-09-05 12:14:29 +03:00
Gilles Peskine 89d789c9bc Refactor some argument checks for readability 
No intended behavior change.
 2018-09-05 12:14:29 +03:00
Gilles Peskine 7e9288520f Wrap lines to 80 columns 2018-09-05 12:14:29 +03:00
Gilles Peskine e553c65cc3 Fix indentation and horizontal whitespace 
Only whitespace changes in this commit.
 2018-09-05 12:14:29 +03:00
Moran Peker 3520c2c4f7 unset iv_required to 0 (psa_encrypt_set_iv)and block_size (psa_cipher_setup) 2018-09-05 12:14:29 +03:00
Moran Peker 395db875e6 adjust indentation per Mbed TLS standards 2018-09-05 12:14:29 +03:00
Moran Peker ae382791fb add missing psa_cipher_abort( operation ) 2018-09-05 12:14:28 +03:00
Moran Peker 70531163a9 fix compilation error - missing if 2018-09-05 12:14:28 +03:00
Moran Peker a28258c594 adjust indentation per Mbed TLS standards 2018-09-05 12:14:28 +03:00
Moran Peker 2cab25aacf fix conditions in psa_cipher_finish function 2018-09-05 12:14:28 +03:00
Moran Peker dc38ebc068 delete decrypt checks + fix memcpy& return value 2018-09-05 12:14:28 +03:00
Moran Peker ad9d82cc0e add iv_required field to psa_cipher_operation_s and fix relevant functions 2018-09-05 12:14:28 +03:00
Moran Peker 71f19ae6f8 add missing call to psa_cipher_abort in cipher_setup func + iv_length check in cipher_set_iv func 2018-09-05 12:14:28 +03:00
Moran Peker 406008ab4c add missing check on output_size in psa_cipher_update func 2018-09-05 12:14:28 +03:00
Moran Peker bed71a2b17 fix missing check on output_size in psa_cipher_finish func 2018-09-05 12:14:28 +03:00
Moran Peker 0071b873a3 add missing parameter output_size on psa_cipher_finish 2018-09-05 12:14:28 +03:00
Moran Peker 4c80d8331a adjust indentation per Mbed TLS standards 2018-09-05 12:14:28 +03:00
mohammad1603 b152d4d8b6 add test scenarios to decrypt and encrypt input and compare with given output 2018-09-05 12:14:28 +03:00
mohammad1603 89e0f468bf style 2018-09-05 12:14:28 +03:00
Moran Peker 41deec4494 partly pr fix 2018-09-05 12:14:28 +03:00
Moran Peker e1210dcac3 remove unused parameter in psa_cipher_finish. 2018-09-05 12:14:28 +03:00
Moran Peker 3205a6592b tests fix 2018-09-05 12:14:28 +03:00
mohammad1603 16864af80b fix static function name 2018-09-05 12:14:28 +03:00
mohammad1603 8481e74ecc CR fixes 
more fixes

Compilation fixes

Compilation fixes for PSA crypto code and tests
 2018-09-05 12:14:28 +03:00
mohammad1603 efb0107fbe CR fix, remove exposing ECB 2018-09-05 12:14:27 +03:00
mohammad1603 990a18c2f0 add ecb to cipher algorithms 2018-09-05 12:14:27 +03:00
Gilles Peskine 5100318a92 Merge pull request #18 from ARMmbed/psa-wrapper-apis-export-publickey 
Export public key implementation (#18)
 2018-09-05 12:13:23 +03:00
mohammad1603 8275961178 warnings fixes 2018-09-05 12:13:23 +03:00
mohammad1603 503973bdf3 initial implementation for PSA symmetric APIs - missing tests and documentations 2018-09-05 12:13:23 +03:00
Moran Peker 8756763cf1 change error check on psa_internal_export_key func 2018-09-05 12:13:23 +03:00
Gilles Peskine 785fd55a39 Whitespace fixes; removed redundant parentheses 
No semantic change.
 2018-09-05 12:13:23 +03:00
Moran Peker cceea98bfe adjust indentation per Mbed TLS standards 2018-09-05 12:13:23 +03:00
Moran Peker d732659867 adjust indentation per Mbed TLS standards 2018-09-05 12:13:23 +03:00
Moran Peker 17e36e1bd9 fix conditions 2018-09-05 12:13:23 +03:00
Moran Peker 6036432617 adjust indentation per Mbed TLS standards 2018-09-05 12:13:23 +03:00
Moran Peker a998bc6ac9 psa_internal_export_key function for common code. 
create psa_internal_export_key function for common code in psa_export_key and psa_export_public_key.
 2018-09-05 12:13:22 +03:00
Moran Peker 5010828fb6 adjust indentation per Mbed TLS standards 2018-09-05 12:13:22 +03:00
Moran Peker b4d0ddd2d3 psa_export_public_key 2018-09-05 12:13:20 +03:00
Moran Peker dd4ea38d58 export public key 2018-09-05 12:10:47 +03:00
itayzafrir 7b30f8b0c9 Added handling for MBEDTLS_ERR_ECP_XXX error codes 
Added handling for MBEDTLS_ERR_ECP_XXX error codes
 2018-09-05 12:10:47 +03:00
itayzafrir 5c7533923a ECDSA sign and verify implementation and tests 
ECDSA sign and verify implementation and tests
 2018-09-05 12:10:47 +03:00
Gilles Peskine a0655c3501 Merge remote-tracking branch 'psa/pr/13' into feature-psa 
Conflicts:
	library/psa_crypto.c
	tests/suites/test_suite_psa_crypto.data
	tests/suites/test_suite_psa_crypto.function

All the conflicts are concurrent additions where the order doesn't
matter. I put the code from feature-psa (key policy) before the code
from PR #13 (key lifetime).
 2018-09-05 12:10:43 +03:00
mohammad1603 ea0500936e Change behavior of psa_get_key_lifetime() 
psa_get_key_lifetime() behavior changed regarding empty slots, now
it return the lifetime of and empty slots. Documentation in header
file updated accordingly.
 2018-09-05 12:01:37 +03:00
mohammad1603 5d7ec2033d fix key lifetime set implementation , tests accordingly 2018-09-05 12:01:37 +03:00
mohammad1603 ba178511f4 Remove unused and duplicated erros, fix documentation and tests 
Remove unused and duplicated erros, fix documentation and tests
 2018-09-05 12:01:37 +03:00
mohammad1603 060ad8ac34 Compilation and tests fixes 2018-09-05 12:01:37 +03:00
mohammad1603 804cd71bf8 initial key lifetime implementation and tests 2018-09-05 12:01:37 +03:00
Gilles Peskine c63b6ba754 Merge remote-tracking branch 'psa/pr/14' into feature-psa 
Conflict resolution:

* `tests/suites/test_suite_psa_crypto.data`: in the new tests from PR #14,
  rename `PSA_ALG_RSA_PKCS1V15_RAW` to `PSA_ALG_RSA_PKCS1V15_SIGN_RAW` as
  was done in PR #15 in the other branch.
 2018-09-05 12:01:34 +03:00
Gilles Peskine 47c1bc0458 Correct some return codes 2018-09-05 11:53:26 +03:00
mohammad1603 38a622b68b Function psa_get_key_policy() now return policy value for empty slots 
Function psa_get_key_policy() now return policy value for empty slots
 2018-09-05 11:53:26 +03:00
mohammad1603 5feda72d7a Remove usage of PSA_ERROR_INVALID_KEY_POLICY 
use PSA_ERROR_INVALID_ARGUMENT instead of INVALID_KEY_POLICY error
 2018-09-05 11:53:26 +03:00
mohammad1603 6df908f234 Add static internal MAC finish function 
add new psa_mac_finish_internal() to be called by psa_mac_finish() and
psa_mac_verify() in order to be able to check key usage separatly.
 2018-09-05 11:53:26 +03:00
Gilles Peskine a59262338a Rename PKCS1V15 to PKCS1V15_SIGN 
There's PKCS1V15_CRYPT as well (to be added soon).
 2018-09-05 11:53:26 +03:00
mohammad1603 4eed757901 add new test scenarios 2018-09-05 11:53:26 +03:00
mohammad1603 06e7920be5 integrate policy key usage in export and asymmetric sign functions 2018-09-05 11:53:26 +03:00
mohammad1603 8cc1ceec3e Key Policy APIs implementation 2018-09-05 11:53:26 +03:00
Gilles Peskine dc2fc8443f Rename xxx_of_psa functions to xxx_from_psa 
Be consistent with how similar functions are named in Mbed TLS.
 2018-09-05 11:53:25 +03:00
Gilles Peskine 3c6e970752 Fix memory leak in psa_destroy_key 2018-09-05 11:53:25 +03:00
Gilles Peskine 6d9121381a Add some comments to document some non-obvious coding choices 2018-09-05 11:53:25 +03:00
Gilles Peskine e4ebc12fcd psa_crypto_init: set the global initialized flag 2018-09-05 11:53:25 +03:00
Gilles Peskine 8c9def3e7f PSA: Implement MAC functions 
Implement psa_mac_start, psa_mac_update and psa_mac_final.

Implement HMAC anc CMAC.

Smoke tests.
 2018-09-05 11:53:25 +03:00
Gilles Peskine 9ef733faa0 Implement hash functions 
New header file crypto_struct.h. The main file crypto.sh declares
structures which are implementation-defined. These structures must be
defined in crypto_struct.h, which is included at the end so that the
structures can use types defined in crypto.h.

Implement psa_hash_start, psa_hash_update and psa_hash_final. This
should work for all hash algorithms supported by Mbed TLS, but has
only been smoke-tested for SHA-256, and only in the nominal case.
 2018-09-05 11:53:25 +03:00
Gilles Peskine a590529938 Greatly expanded mbedtls_to_psa_error 
It now covers most cryptography algorithm modules (missing: bignum,
DHM, everything ECC, HMAC_DRBG).
 2018-09-05 11:53:24 +03:00
Gilles Peskine 93aa0334d9 PSA asymmetric signature: set *signature_length = 0 on failure 2018-09-05 11:53:24 +03:00
Gilles Peskine 20035e3579 PSA crypto: asymmetric signature (RSA PKCS#1v1.5 only) 
Define hash algorithms and RSA signature algorithms.

New function psa_asymmetric_sign.

Implement psa_asymmetric_sign for RSA PKCS#1 v1.5.
 2018-09-05 11:53:24 +03:00
Gilles Peskine c66ea6a921 PSA key import: support RSA public keys 
Use different key types for private keys and public keys.
 2018-09-05 11:53:24 +03:00
Gilles Peskine 969ac726d9 PSA RSA key import: don't rely on pk so much 
Don't use the pk module except as required for pkparse/pkwrite. The
PSA crypto layer is meant to work alongside pk, not on top of it.

Fix the compile-time dependencies on RSA/ECP handling in
psa_export_key, psa_destroy_key and psa_get_key_information.
 2018-09-05 11:53:24 +03:00
Gilles Peskine 2f9c4dc5ad Add key management functions 
Define psa_key_type_t and a first stab at a few values.

New functions psa_import_key, psa_export_key, psa_destroy_key,
psa_get_key_information. Implement them for raw data and RSA.

Under the hood, create an in-memory, fixed-size keystore with room
for MBEDTLS_PSA_KEY_SLOT_COUNT - 1 keys.
 2018-09-05 11:53:24 +03:00
Gilles Peskine e59236fc17 Add PSA crypto module 
New module psa_crypto.c (MBEDTLS_PSA_CRYPTO_C):
Platform Security Architecture compatibility layer on top of
libmedcrypto.

Implement psa_crypto_init function which sets up a RNG.

Add a mbedtls_psa_crypto_free function which deinitializes the
library.

Define a first batch of error codes.
 2018-09-05 10:59:00 +03:00