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| author | Michael Brown | 2012-03-06 14:42:06 +0100 |
|---|---|---|
| committer | Michael Brown | 2012-03-06 14:42:06 +0100 |
| commit | 8d038040eaac85bbe08f0b5ba507ff0167b3a2f3 (patch) | |
| tree | 8cf96f207c7be185a397ffe776d3101ce49abf4a /src/tests | |
| parent | [rng] Add NIST self-tests for HMAC_DRBG using SHA-256 (diff) | |
| download | ipxe-8d038040eaac85bbe08f0b5ba507ff0167b3a2f3.tar.gz ipxe-8d038040eaac85bbe08f0b5ba507ff0167b3a2f3.tar.xz ipxe-8d038040eaac85bbe08f0b5ba507ff0167b3a2f3.zip | |
[rng] Choose HMAC_DRBG using SHA-256 as the DRBG algorithm
Both HMAC_DRBG using SHA-1 and HMAC_DRBG using SHA-256 are Approved
algorithms in ANS X9.82 for our chosen security strength of 128 bits.
However, general recommendations (see e.g. NIST SP800-57) are to use a
larger hash function in preference to SHA-1.
Since SHA-256 is required anyway for TLSv1.2 support, there is no code
size penalty for switching HMAC_DRBG to also use SHA-256.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/tests')
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