Ron Eldor
da04b3b972
Increase okm_hex buffer to contain null character
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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
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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
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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
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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
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`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
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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
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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
