Commit Graph

11 Commits

Author SHA1 Message Date
Ronald Cron
d7a4df8341 tests: hkdf: Prepare to char* to data_t* type change
In preparation of changing the type of some parameters
of test_hkdf() from `char *` to `data_t` to get rid of the
calls to mbedtls_test_unhexify():

- Align naming of variables related to the expected okm
- Rename `okm_hex[]` to `okm_string[]`
- Added TEST_ASSERT( expected_okm_len <= sizeof( okm ) ) to check
  that the okm[] buffer is large enough for the okm output.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-06-26 09:47:25 +02:00
Ronald Cron
5b13a86e11 tests: Reformating due to *hexify functions renaming
Command to find the files in which lines have gone
larger than 79 characters due to the renaming:

grep '.\{80\}' \
`git diff-tree --no-commit-id --name-only -r HEAD` \
| grep hexify

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-06-26 09:38:21 +02:00
Ronald Cron
a0c9ff3e52 tests: Add mbedtls_test_ prefix to *hexify functions
Add mbedtls_test_ prefix to hexify() and unhexify()
test helper functions.

Command to change *.function files:
find . -name "*.function" -exec awk -i inplace \
    '{sub(/(un|)hexify\>/,"mbedtls_test_&")}1' {} \;

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-06-26 09:15:43 +02:00
Ron Eldor
da04b3b972 Increase okm_hex buffer to contain null character
Add an additional byte for the `okm_hex` buffer, to assure
it is null-terminated in case `okm` is 128 bytes long.
2019-01-28 15:20:10 +02:00
Ron Eldor
57c2a301a3 Minor modifications to hkdf test
1. Fix comment grammar.
2. Rename `okm_string` to `okm_hex`.
2019-01-28 15:09:15 +02:00
Ron Eldor
6fce81637e Add explanation for okm_string size
Add explanation for why the size of `okm_string` buffer
is twice as `okm` buffer.
2019-01-28 15:05:11 +02:00
Ron Eldor
d9ad084b2d Reduce buffer size of okm
Reduce the buffer size of okm to 128, to reduce stack usage.
2019-01-17 21:32:12 +02:00
Ron Eldor
45154eb20b Reduce Stack usage of hkdf test function
`test_hkdf` in the hkdf test suites consumed stack of ~6KB with
6 buffers of ~1KB each. This causes stack overflow on some platforms
with smaller stack. The buffer sizes were reduced. By testing, the sizes
can be reduced even further, as the largest seen size is 82 bytes(for okm).
2019-01-17 21:31:59 +02:00
Jaeden Amero
10e0e4d4ff hkdf: Add negative tests
Test for the expected bad input parameter error when given specific sets of
bad input parameters.
2018-06-11 13:10:14 +01:00
Jaeden Amero
3618962cab hkdf: Add tests for extract and expand
Add tests for mbedtls_hkdf_extract() and mbedtls_hkdf_expand() from the
test vectors in Appendix A of RFC 5869.
2018-06-11 13:10:14 +01:00
Thomas Fossati
656864b360 Add an HKDF (RFC 5869) implementation 2018-06-11 13:10:14 +01:00