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/ecp_nist.c | 95 ++++++++++++++++++++++-------------------
 1 file changed, 51 insertions(+), 44 deletions(-)

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

diff --git a/src/lib/libcrypto/ec/ecp_nist.c b/src/lib/libcrypto/ec/ecp_nist.c
index 479cff8fc9..60c4a2d790 100644
--- a/src/lib/libcrypto/ec/ecp_nist.c
+++ b/src/lib/libcrypto/ec/ecp_nist.c
@@ -10,7 +10,7 @@
  * 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
@@ -81,20 +81,20 @@ EC_GFp_nist_method(void)
 		.group_get_curve = ec_GFp_simple_group_get_curve,
 		.group_get_degree = ec_GFp_simple_group_get_degree,
 		.group_check_discriminant =
-		    ec_GFp_simple_group_check_discriminant,
+		ec_GFp_simple_group_check_discriminant,
 		.point_init = ec_GFp_simple_point_init,
 		.point_finish = ec_GFp_simple_point_finish,
 		.point_clear_finish = ec_GFp_simple_point_clear_finish,
 		.point_copy = ec_GFp_simple_point_copy,
 		.point_set_to_infinity = ec_GFp_simple_point_set_to_infinity,
 		.point_set_Jprojective_coordinates_GFp =
-		    ec_GFp_simple_set_Jprojective_coordinates_GFp,
+		ec_GFp_simple_set_Jprojective_coordinates_GFp,
 		.point_get_Jprojective_coordinates_GFp =
-		    ec_GFp_simple_get_Jprojective_coordinates_GFp,
+		ec_GFp_simple_get_Jprojective_coordinates_GFp,
 		.point_set_affine_coordinates =
-		    ec_GFp_simple_point_set_affine_coordinates,
+		ec_GFp_simple_point_set_affine_coordinates,
 		.point_get_affine_coordinates =
-		    ec_GFp_simple_point_get_affine_coordinates,
+		ec_GFp_simple_point_get_affine_coordinates,
 		.add = ec_GFp_simple_add,
 		.dbl = ec_GFp_simple_dbl,
 		.invert = ec_GFp_simple_invert,
@@ -110,25 +110,29 @@ EC_GFp_nist_method(void)
 	return &ret;
 }
 
-int ec_GFp_nist_group_copy(EC_GROUP *dest, const EC_GROUP *src)
-	{
+int 
+ec_GFp_nist_group_copy(EC_GROUP * dest, const EC_GROUP * src)
+{
 	dest->field_mod_func = src->field_mod_func;
 
 	return ec_GFp_simple_group_copy(dest, src);
-	}
+}
 
-int ec_GFp_nist_group_set_curve(EC_GROUP *group, const BIGNUM *p,
-	const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
-	{
+int 
+ec_GFp_nist_group_set_curve(EC_GROUP *group, const BIGNUM *p,
+    const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
+{
 	int ret = 0;
 	BN_CTX *new_ctx = NULL;
 	BIGNUM *tmp_bn;
-	
+
 	if (ctx == NULL)
-		if ((ctx = new_ctx = BN_CTX_new()) == NULL) return 0;
+		if ((ctx = new_ctx = BN_CTX_new()) == NULL)
+			return 0;
 
 	BN_CTX_start(ctx);
-	if ((tmp_bn = BN_CTX_get(ctx)) == NULL) goto err;
+	if ((tmp_bn = BN_CTX_get(ctx)) == NULL)
+		goto err;
 
 	if (BN_ucmp(BN_get0_nist_prime_192(), p) == 0)
 		group->field_mod_func = BN_nist_mod_192;
@@ -140,69 +144,72 @@ int ec_GFp_nist_group_set_curve(EC_GROUP *group, const BIGNUM *p,
 		group->field_mod_func = BN_nist_mod_384;
 	else if (BN_ucmp(BN_get0_nist_prime_521(), p) == 0)
 		group->field_mod_func = BN_nist_mod_521;
-	else
-		{
+	else {
 		ECerr(EC_F_EC_GFP_NIST_GROUP_SET_CURVE, EC_R_NOT_A_NIST_PRIME);
 		goto err;
-		}
+	}
 
 	ret = ec_GFp_simple_group_set_curve(group, p, a, b, ctx);
 
- err:
+err:
 	BN_CTX_end(ctx);
 	if (new_ctx != NULL)
 		BN_CTX_free(new_ctx);
 	return ret;
-	}
+}
 
 
-int ec_GFp_nist_field_mul(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a,
-	const BIGNUM *b, BN_CTX *ctx)
-	{
-	int	ret=0;
-	BN_CTX	*ctx_new=NULL;
+int 
+ec_GFp_nist_field_mul(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a,
+    const BIGNUM *b, BN_CTX *ctx)
+{
+	int ret = 0;
+	BN_CTX *ctx_new = NULL;
 
-	if (!group || !r || !a || !b)
-		{
+	if (!group || !r || !a || !b) {
 		ECerr(EC_F_EC_GFP_NIST_FIELD_MUL, ERR_R_PASSED_NULL_PARAMETER);
 		goto err;
-		}
+	}
 	if (!ctx)
-		if ((ctx_new = ctx = BN_CTX_new()) == NULL) goto err;
+		if ((ctx_new = ctx = BN_CTX_new()) == NULL)
+			goto err;
 
-	if (!BN_mul(r, a, b, ctx)) goto err;
+	if (!BN_mul(r, a, b, ctx))
+		goto err;
 	if (!group->field_mod_func(r, r, &group->field, ctx))
 		goto err;
 
-	ret=1;
+	ret = 1;
 err:
 	if (ctx_new)
 		BN_CTX_free(ctx_new);
 	return ret;
-	}
+}
 
 
-int ec_GFp_nist_field_sqr(const EC_GROUP *group, BIGNUM *r, const BIGNUM *a,
-	BN_CTX *ctx)
-	{
-	int	ret=0;
-	BN_CTX	*ctx_new=NULL;
+int 
+ec_GFp_nist_field_sqr(const EC_GROUP * group, BIGNUM * r, const BIGNUM * a,
+    BN_CTX * ctx)
+{
+	int ret = 0;
+	BN_CTX *ctx_new = NULL;
 
-	if (!group || !r || !a)
-		{
+	if (!group || !r || !a) {
 		ECerr(EC_F_EC_GFP_NIST_FIELD_SQR, EC_R_PASSED_NULL_PARAMETER);
 		goto err;
-		}
+	}
 	if (!ctx)
-		if ((ctx_new = ctx = BN_CTX_new()) == NULL) goto err;
+		if ((ctx_new = ctx = BN_CTX_new()) == NULL)
+			goto err;
 
-	if (!BN_sqr(r, a, ctx)) goto err;
+	if (!BN_sqr(r, a, ctx))
+		goto err;
 	if (!group->field_mod_func(r, r, &group->field, ctx))
 		goto err;
 
-	ret=1;
+	ret = 1;
 err:
 	if (ctx_new)
 		BN_CTX_free(ctx_new);
 	return ret;
-	}
+}
-- 
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