Fix an unsigned/signed mismatch.

diff --git a/crypto/bn/bn_gf2m.c b/crypto/bn/bn_gf2m.c
index 24906c9c32ec5452f154734b47137ae2d4616fb4..826a0497e80a65aeb073fc1113dc647a9201eafe 100644 (file)
--- a/crypto/bn/bn_gf2m.c
+++ b/crypto/bn/bn_gf2m.c
@@ -854,6 +854,7 @@ int BN_GF2m_mod_sqrt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx)
 int BN_GF2m_mod_solve_quad_arr(BIGNUM *r, const BIGNUM *a_, const unsigned int p[], BN_CTX *ctx)
        {
        int ret = 0, i, count = 0;
+       unsigned int j;
        BIGNUM *a, *z, *rho, *w, *w2, *tmp;
        
        BN_CTX_start(ctx);
@@ -874,7 +875,7 @@ int BN_GF2m_mod_solve_quad_arr(BIGNUM *r, const BIGNUM *a_, const unsigned int p
                {
                /* compute half-trace of a */
                if (!BN_copy(z, a)) goto err;
-               for (i = 1; i <= (p[0] - 1) / 2; i++)
+               for (j = 1; j <= (p[0] - 1) / 2; j++)
                        {
                        if (!BN_GF2m_mod_sqr_arr(z, z, p, ctx)) goto err;
                        if (!BN_GF2m_mod_sqr_arr(z, z, p, ctx)) goto err;
@@ -894,7 +895,7 @@ int BN_GF2m_mod_solve_quad_arr(BIGNUM *r, const BIGNUM *a_, const unsigned int p
                        if (!BN_GF2m_mod_arr(rho, rho, p)) goto err;
                        if (!BN_zero(z)) goto err;
                        if (!BN_copy(w, rho)) goto err;
-                       for (i = 1; i <= p[0] - 1; i++)
+                       for (j = 1; j <= p[0] - 1; j++)
                                {
                                if (!BN_GF2m_mod_sqr_arr(z, z, p, ctx)) goto err;
                                if (!BN_GF2m_mod_sqr_arr(w2, w, p, ctx)) goto err;