From 2518b24aa4315d557b967bff48dfc9efed909569 Mon Sep 17 00:00:00 2001
From: tedu <>
Date: Tue, 6 May 2014 03:56:27 +0000
Subject: knf approximation

---
 src/lib/libcrypto/ec/ec_check.c | 58 ++++++++++++++++++-----------------------
 1 file changed, 26 insertions(+), 32 deletions(-)

(limited to 'src/lib/libcrypto/ec/ec_check.c')

diff --git a/src/lib/libcrypto/ec/ec_check.c b/src/lib/libcrypto/ec/ec_check.c
index 0e316b4b3f..8f533d5ff8 100644
--- a/src/lib/libcrypto/ec/ec_check.c
+++ b/src/lib/libcrypto/ec/ec_check.c
@@ -7,7 +7,7 @@
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
+ *    notice, this list of conditions and the following disclaimer.
  *
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
@@ -56,60 +56,54 @@
 #include "ec_lcl.h"
 #include <openssl/err.h>
 
-int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx)
-	{
+int 
+EC_GROUP_check(const EC_GROUP * group, BN_CTX * ctx)
+{
 	int ret = 0;
 	BIGNUM *order;
 	BN_CTX *new_ctx = NULL;
 	EC_POINT *point = NULL;
 
-	if (ctx == NULL)
-		{
+	if (ctx == NULL) {
 		ctx = new_ctx = BN_CTX_new();
-		if (ctx == NULL)
-			{
+		if (ctx == NULL) {
 			ECerr(EC_F_EC_GROUP_CHECK, ERR_R_MALLOC_FAILURE);
 			goto err;
-			}
 		}
+	}
 	BN_CTX_start(ctx);
-	if ((order = BN_CTX_get(ctx)) == NULL) goto err;
+	if ((order = BN_CTX_get(ctx)) == NULL)
+		goto err;
 
 	/* check the discriminant */
-	if (!EC_GROUP_check_discriminant(group, ctx))
-		{
+	if (!EC_GROUP_check_discriminant(group, ctx)) {
 		ECerr(EC_F_EC_GROUP_CHECK, EC_R_DISCRIMINANT_IS_ZERO);
 		goto err;
-		}
-
+	}
 	/* check the generator */
-	if (group->generator == NULL)
-		{
+	if (group->generator == NULL) {
 		ECerr(EC_F_EC_GROUP_CHECK, EC_R_UNDEFINED_GENERATOR);
 		goto err;
-		}
-	if (!EC_POINT_is_on_curve(group, group->generator, ctx))
-		{
+	}
+	if (!EC_POINT_is_on_curve(group, group->generator, ctx)) {
 		ECerr(EC_F_EC_GROUP_CHECK, EC_R_POINT_IS_NOT_ON_CURVE);
 		goto err;
-		}
-
+	}
 	/* check the order of the generator */
-	if ((point = EC_POINT_new(group)) == NULL) goto err;
-	if (!EC_GROUP_get_order(group, order, ctx)) goto err; 
-	if (BN_is_zero(order))
-		{
+	if ((point = EC_POINT_new(group)) == NULL)
+		goto err;
+	if (!EC_GROUP_get_order(group, order, ctx))
+		goto err;
+	if (BN_is_zero(order)) {
 		ECerr(EC_F_EC_GROUP_CHECK, EC_R_UNDEFINED_ORDER);
 		goto err;
-		}
-	
-	if (!EC_POINT_mul(group, point, order, NULL, NULL, ctx)) goto err;
-	if (!EC_POINT_is_at_infinity(group, point))
-		{
+	}
+	if (!EC_POINT_mul(group, point, order, NULL, NULL, ctx))
+		goto err;
+	if (!EC_POINT_is_at_infinity(group, point)) {
 		ECerr(EC_F_EC_GROUP_CHECK, EC_R_INVALID_GROUP_ORDER);
 		goto err;
-		}
-
+	}
 	ret = 1;
 
 err:
@@ -120,4 +114,4 @@ err:
 	if (point)
 		EC_POINT_free(point);
 	return ret;
-	}
+}
-- 
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