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| author | Geoff Thorpe <geoff@openssl.org> | 2004-03-17 18:36:54 +0100 |
|---|---|---|
| committer | Geoff Thorpe <geoff@openssl.org> | 2004-03-17 18:36:54 +0100 |
| commit | e042540f6bb0ebd8acf5c2ab0ccd1f14b5fc0f77 (patch) | |
| tree | 45cc4498f4011adb6d3a20a608f131b01bcc2c7a /crypto/bn/bn_sqr.c | |
| parent | Avoid warnings. (diff) | |
| download | openssl-e042540f6bb0ebd8acf5c2ab0ccd1f14b5fc0f77.tar.xz openssl-e042540f6bb0ebd8acf5c2ab0ccd1f14b5fc0f77.zip | |
Variety of belt-tightenings in the bignum code. (Please help test this!)
- Remove some unnecessary "+1"-like fudges. Sizes should be handled
exactly, as enlarging size parameters causes needless bloat and may just
make bugs less likely rather than fixing them: bn_expand() macro,
bn_expand_internal(), and BN_sqr().
- Deprecate bn_dup_expand() - it's new since 0.9.7, unused, and not that
useful.
- Remove unnecessary zeroing of unused bytes in bn_expand2().
- Rewrite BN_set_word() - it should be much simpler, the previous
complexities probably date from old mismatched type issues.
- Add missing bn_check_top() macros in bn_word.c
- Improve some degenerate case handling in BN_[add|sub]_word(), add
comments, and avoid a bignum expansion if an overflow isn't possible.
Diffstat (limited to 'crypto/bn/bn_sqr.c')
| -rw-r--r-- | crypto/bn/bn_sqr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/bn/bn_sqr.c b/crypto/bn/bn_sqr.c index 8831daa390..3b4b3f0d38 100644 --- a/crypto/bn/bn_sqr.c +++ b/crypto/bn/bn_sqr.c @@ -86,7 +86,7 @@ int BN_sqr(BIGNUM *r, const BIGNUM *a, BN_CTX *ctx) if (!rr || !tmp) goto err; max = 2 * al; /* Non-zero (from above) */ - if (bn_wexpand(rr,max+1) == NULL) goto err; + if (bn_wexpand(rr,max) == NULL) goto err; if (al == 4) { |