Commit graph

12 commits

Author SHA1 Message Date
Gilles Peskine 27354690cb Use a bit-size in the algorithm name
Call it “SHAKE256-512”, just like SHA3-512 has 512 bits of output.
SHAKE256-64 looks like it's 64 bits of output, but this is 64 bytes.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-03-29 14:55:44 +02:00
Gilles Peskine 3a1101a122 Define algorithms for EdDSA
Define algorithms for PureEdDSA and for HashEdDSA, the EdDSA variants
defined by RFC 8032.

The encoding for HashEdDSA needs to encode the hash algorithm so that
the hash can be calculated by passing PSA_ALG_SIGN_GET_HASH(sig_alg)
to psa_hash_compute() or psa_hash_setup(). As a consequence,
Ed25519ph (using SHA-512) and Ed448ph (using SHAKE256) need to have
different algorithm encodings (the key is enough to tell them apart,
but it is not known while hashing). Another consequence is that the
API needs to recognize the Ed448 prehash (64 bytes of SHAKE256 output)
as a hash algorithm.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-03-29 14:55:44 +02:00
Gilles Peskine 67546802fe New elliptic curve family: twisted Edwards
Add an elliptic curve family for the twisted Edwards curves
Edwards25519 and Edwards448 ("Goldilocks"). As with Montgomery curves,
since these are the only two curves in common use, the family has a
generic name.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-03-29 14:55:44 +02:00
Steven Cooreman 947bb0b06f Code readability improvements
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-01 16:09:24 +01:00
Steven Cooreman d927ed7901 Rename _MINIMUM_LENGTH flags to _AT_LEAST_THIS_LENGTH
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-01 16:03:39 +01:00
Steven Cooreman 4400c3a44a Add _AT_LEAST_THIS_LENGTH_ macros to PSA constants test
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-03-01 16:03:39 +01:00
Bence Szépkúti a63b20d28b Rename AEAD tag length macros
This brings them in line with PSA Crypto API 1.0.0

PSA_ALG_AEAD_WITH_DEFAULT_TAG_LENGTH -> PSA_ALG_AEAD_WITH_DEFAULT_LENGTH_TAG
PSA_ALG_AEAD_WITH_TAG_LENGTH         -> PSA_ALG_AEAD_WITH_SHORTENED_TAG

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2021-02-11 11:39:31 +01:00
Gilles Peskine d945871c55
Merge pull request #3872 from gabor-mezei-arm/3275_use_PSA_ERROR_DATA_INVALID_where_warranted
Use PSA_ERROR_DATA_INVALID where warranted
2021-02-03 20:54:46 +01:00
Bence Szépkúti 1de907d4a4 Introduce PSA_ALG_STREAM_CIPHER
This algorithm replaces the pre-existing stream cipher algorithms.
The underlying stream cipher is determined by the key type.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-12-07 21:03:05 +01:00
gabor-mezei-arm fe30924c45 Use PSA_ERROR_DATA_INVALID error code
If the file is read correctly, but it contains data that isn't valid,
the crypto storage code returns PSA_ERROR_DATA_INVALID.
The PSA_ERROR_DATA_CORRUPT and PSA_ERROR_STORAGE_FAILURE error codes are
replaced with PSA_ERROR_DATA_INVALID, except in the ITS subsystem.

Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2020-11-24 13:37:52 +01:00
gabor-mezei-arm 3d8b4f54d3 Add missing error code documentation
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
2020-11-24 13:37:52 +01:00
Cameron Nemo e18d09de37 fix(programs/psa): commit python3 generated file
Python should not be required for the build when the no_test target is
used. This commit adds the generated file to the source tree and the
check-generated-files script, and removes the generation from (c)make.

Fixes #3524

Signed-off-by: Cameron Nemo <cnemo@tutanota.com>
2020-09-24 20:57:46 -07:00