Variety of belt-tightenings in the bignum code. (Please help test this!)

[openssl.git] / crypto / bn / bn_sqr.c

diff --git a/crypto/bn/bn_sqr.c b/crypto/bn/bn_sqr.c
index 8831daa390a7be5cdbb0bc7815cfb6ebe0efb6b1..3b4b3f0d38350d642c0e83b6597e218dea3766da 100644 (file)
--- 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)
                {