diff options
author | Stephan Mueller <smueller@chronox.de> | 2014-08-17 11:37:34 -0400 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2014-08-25 08:34:07 -0400 |
commit | 72f3e00dd67ec449199a8844bc012a4fa1e0340a (patch) | |
tree | b73c93435e7f60dd8064e6e73b83b974ecff0abe /crypto/testmgr.c | |
parent | 4451d494b1910bf7b7f8381a637d0fe6d2142467 (diff) |
crypto: drbg - replace int2byte with cpu_to_be
The DRBG requires the conversion of an integer into a string
representation of that integer. The previous implementation converted
the given integer byte-wise. However, the kernel offers the cpu_to_be
function which already re-arranges the memory representation of an
integer such that it applies when interpreting the same memory as
character string.
The change therefore uses an integer-cast / union of the target
character array together with the cpu_to_be function to convert an
integer into its string representation.
Tests show that the Hash and CTR DRBG implementations (the HMAC DRBG
does not require such conversion) is about 10% faster (or requires less
computing power, respectively).
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/testmgr.c')
0 files changed, 0 insertions, 0 deletions