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Get rid of some crufty macros.

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These were macros that were never used, or that were only set to one thing and
could be substituted up front.

I left in code guarded by the HAVE_ENDIAN_H and HAVE_LITTLE_ENDIAN macros even
though those are never defined because they guard a reportedly significantly
faster implementation of some functionality, at least according to a comment
in the source. It would be a good idea to enable that code path and see if it
really does make a big difference before removing it entirely.

BUG=None
TEST=Built for Link, Daisy, and the host with FEATURES=test. Built depthcharge
for Link and booted in normal mode.
BRANCH=None

Change-Id: I934a4dd0da169ac018ba07350d56924ab88b1acc
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/45687
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
This commit is contained in:
Gabe Black
2013-03-16 04:03:40 -07:00
committed by ChromeBot
parent 77f55ca1cd
commit ac8805e7e9
43 changed files with 57 additions and 199 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
firmware/lib/cryptolib/rsa.c
View File

@@ -39,14 +39,14 @@ static void montMulAdd(const RSAPublicKey *key,
uint32_t* c,
const uint32_t a,
const uint32_t* b) {
uint64_t A = UINT64_MULT32(a, b[0]) + c[0];
uint64_t A = (uint64_t)a * b[0] + c[0];
uint32_t d0 = (uint32_t)A * key->n0inv;
uint64_t B = UINT64_MULT32(d0, key->n[0]) + (uint32_t)A;
uint64_t B = (uint64_t)d0 * key->n[0] + (uint32_t)A;
uint32_t i;
for (i = 1; i < key->len; ++i) {
A = (A >> 32) + UINT64_MULT32(a, b[i]) + c[i];
B = (B >> 32) + UINT64_MULT32(d0, key->n[i]) + (uint32_t)A;
A = (A >> 32) + (uint64_t)a * b[i] + c[i];
B = (B >> 32) + (uint64_t)d0 * key->n[i] + (uint32_t)A;
c[i - 1] = (uint32_t)B;
}