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394 commits

Author SHA1 Message Date
Gilles Peskine
38b7c5edeb
Merge pull request #260 from athoelke/at-operations 
Update multipart operation documentation
 2019-09-20 18:44:44 +02:00
Gilles Peskine
a291413a1e
Merge pull request #257 from gilles-peskine-arm/psa-remove_zero_length_keys 
Forbid zero-length keys
 2019-09-19 13:07:41 +02:00
Andrew Thoelke
51514f57e9 Resolve inconsistent descipriton of operation state after exhausting a key derivation operation 2019-09-18 17:50:01 +01:00
Andrew Thoelke
4104afb770 Clarify valid state descriptions 2019-09-18 17:47:25 +01:00
Andrew Thoelke
beb97ba066 Update documentation for multipart key derivation operations 2019-09-13 15:35:18 +01:00
Andrew Thoelke
414415a457 Update documentation for multipart aead operations 2019-09-13 15:35:18 +01:00
Andrew Thoelke
db6f44f875 Update documentation for multipart cipher operations 2019-09-13 15:35:17 +01:00
Andrew Thoelke
9f208cc8c2 Update documentation for multipart mac operations 2019-09-13 15:35:17 +01:00
Andrew Thoelke
272ba1dd96 Update documentation for multipart hash operations 2019-09-13 15:35:17 +01:00
Andrew Thoelke
340984b003 Fix PSA_ERROR_BAD_STATE messages 
Remove some duplicated entries and added some missing ones.
 2019-09-13 15:35:17 +01:00
Gilles Peskine
05c900b576 Forbid keys of size 0 
Keys of size 0 generally don't make sense: a key is supposed to be
secret. There is one edge case which is "raw data" keys, which are
useful to store non-key objects in the same storage location as keys.
However those are also problematic because they involve a zero-length
buffer. Manipulating zero-length buffers in C requires special cases
with functions like malloc() and memcpy(). Additionally, 0 as a key
size already has a meaning "unspecified", which does not always
overlap seamlessly with the meaning "0".

Therefore, forbid keys of size 0. No implementation may accept them.
 2019-09-12 18:29:43 +02:00
Gilles Peskine
a170d927dd Clarify how key creation functions use attributes and what 0 means 
Clarify how key creation functions use attributes. Explain the meaning
of attribute values, espcially what 0 means in each field where it has
a special meaning. Explain what an algorithm usage policy can be (an
algorithm, a wildcard with ANY_HASH, or 0).
 2019-09-12 17:38:19 +02:00
Andrew Thoelke
5ae24ec7af Add missing error case to psa_aead_verify 2019-09-12 09:44:33 +01:00
Adrian L. Shaw
4c61c1a736 Move psa_destroy_key and psa_copy_key to Key Management section 2019-09-11 14:40:51 +01:00
Jaeden Amero
4badc92438
Merge pull request #117 from gilles-peskine-arm/psa_error_code_coverage 
PSA return status coverage script
 2019-09-10 16:39:23 +01:00
Jaeden Amero
4864eb5bec
Merge pull request #247 from athoelke/at-key-handles 
Update the behavior of key handles
 2019-09-10 14:38:56 +01:00
Andrew Thoelke
970629fc9a Fix grammar. 2019-09-09 09:56:34 +01:00
Gilles Peskine
be061337c1 Document more error codes 2019-09-06 19:29:52 +02:00
Adrian L. Shaw
8619f8cd07 Remove storage errors from psa_generate_random 2019-09-05 10:37:22 +01:00
Andrew Thoelke
de183416f8 Update the behavior of key handles 
* open output distinct key handles
* each handle must be closed
* destroying a key does not invalidate other handles
* closing a key can/might fail an active operation (but not required)
 2019-09-05 09:38:06 +01:00
Adrian L. Shaw
3b5975641e Fix return code warnings 
- Remove STORAGE_FAILURE from hash and abort functions
- Remove BUFFER_TOO_SMALL from psa_mac_verify
 2019-09-04 19:20:32 +01:00
Adrian L. Shaw
fa2cefa001 Fix warnings 2019-09-04 11:36:15 +01:00
Adrian L. Shaw
f483973c37 Add PSA_ERROR_STORAGE_FAILURE to psa_cipher_generate_iv 2019-09-04 11:35:32 +01:00
Adrian L. Shaw
599c712668 Remove errorneous insert 2019-09-04 11:35:32 +01:00
Adrian L. Shaw
1505b2108a Add STORAGE_FAILURE everywhere + add missing codes 2019-09-04 11:35:32 +01:00
Adrian L. Shaw
1f1e1a5253 Add storage failure to psa_mac_verify_finish 2019-09-04 11:35:32 +01:00
Adrian L. Shaw
56b32b126c Add storage failure to psa_mac_sign_finish 2019-09-04 11:35:32 +01:00
Adrian L. Shaw
22bc8fff0c Add PSA_ERROR_STORAGE_FAILURE to psa_aead_*_setup functions 2019-09-04 11:35:06 +01:00
Adrian L. Shaw
8f7cd1ee55 Added PSA_ERROR_BAD_STATE to functions with operations 
In the case that the operation object has not been initialized
appropriately.
 2019-09-04 11:34:22 +01:00
Adrian L. Shaw
97d3bc3674 Added extra bad state case to psa_hash_setup 2019-09-04 11:34:22 +01:00
Adrian L. Shaw
2364924619 Add missing return codes to psa_generate_key 2019-09-04 11:34:22 +01:00
Adrian L. Shaw
1f42a84a13 Add PSA_ERROR_BUFFER_TOO_SMALL to psa_mac_compute 2019-09-04 11:33:32 +01:00
Adrian L. Shaw
650229ba38 Added PSA_ERROR_STORAGE_FAILURE to psa_mac_compute 
In case the key could not be retrieved from
storage.
 2019-09-04 11:31:14 +01:00
Adrian L. Shaw
2a889781c5 Add PSA_ERROR_STORAGE_FAILURE to psa_export_public_key 
The same reason that it is included in psa_export_key
 2019-09-04 11:31:14 +01:00
Adrian L. Shaw
11638b99a0 Added PSA_ERROR_INSUFFICIENT_MEMORY to psa_export_public_key 
For the same reasons that psa_export_key can fail with this error
 2019-09-04 11:31:14 +01:00
Adrian L. Shaw
7f1863c905 Add PSA_ERROR_INSUFFICIENT_MEMORY to psa_export_key 
It may be possible that the implementation runs out of
memory when exporting a key from storage or a secure
element. For example, it may not be possible to directly
move the data from storage to the caller, so the implementation
will have to buffer the material temporarily (an issue if dynamic
memory allocation scheme is used). For a large key
this is more likely to return.
 2019-09-04 11:31:14 +01:00
Adrian L. Shaw
15731c1422 Added PSA_ERROR_STORAGE_FAILURE to psa_export_key 
It may be possible that an implementation does not
fetch key material until a command like
this is called and such an error may occur if an
off-chip secure storage dependency may have been wiped.
 2019-09-04 11:31:14 +01:00
Adrian L. Shaw
23c006f45e Added missing return codes to get_key_attributes 
Note that PSA_ERROR_NOT_PERMITTED is not included
because I can't think of a scenario where you have
a valid key handle but aren't allowed to read the
attributes
 2019-09-04 11:31:14 +01:00
Adrian L. Shaw
39797aa34c Fix erroneous cut and paste 2019-09-04 11:30:18 +01:00
Adrian L. Shaw
fbf7f121f9 Separate return codes for unsupported and invalid algorithms 2019-09-04 11:30:18 +01:00
Adrian L. Shaw
66200c4e98 Add PSA_ERROR_STORAGE_FAILURE to psa_cipher_generate_iv 2019-09-04 11:30:18 +01:00
Adrian L. Shaw
f97c8523ee Add CORRUPTION_DETECTED to psa_close_key 2019-09-04 11:30:18 +01:00
Adrian L. Shaw
6725757cec Remove errorneous insert 2019-09-04 11:30:18 +01:00
Adrian L. Shaw
484ba88a0f Add STORAGE_FAILURE everywhere + add missing codes 2019-09-04 11:30:18 +01:00
Adrian L. Shaw
dc5bf5c8e7 Add storage failure to (encrypt/decrypt)_setup 2019-09-04 11:30:18 +01:00
Adrian L. Shaw
d9e9024885 Add storage failure to psa_mac_verify_finish 2019-09-04 11:30:18 +01:00
Adrian L. Shaw
263223689f Add storage failure to psa_mac_sign_finish 2019-09-04 11:30:18 +01:00
Adrian L. Shaw
8d0bcf27ec Add PSA_ERROR_INVALID_ARGUMENT to psa_hash_compare 2019-09-04 11:30:17 +01:00
Adrian L. Shaw
df3c7ac645 Remove trailing whitespace 2019-09-04 11:30:17 +01:00
Adrian L. Shaw
d789dc13da Added a few more return codes 2019-09-04 11:30:17 +01:00