From: Dr. Stephen Henson <steve@openssl.org>
Date: Thu, 19 Feb 2015 14:32:44 +0000 (+0000)
Subject: Use named curve parameter encoding by default.
X-Git-Tag: OpenSSL_1_1_0-pre1~1631
X-Git-Url: https://git.openssl.org/?p=openssl.git;a=commitdiff_plain;h=86f300d38540ead85543aee0cb30c32145931744

Use named curve parameter encoding by default.

Many applications require named curve parameter encoding instead of explicit
parameter encoding (including the TLS library in OpenSSL itself). Set this
encoding by default instead of requiring an explicit call to set it.

Add OPENSSL_EC_EXPLICT_CURVE define.
Reviewed-by: Matt Caswell <matt@openssl.org>
---

diff --git a/crypto/ec/ec.h b/crypto/ec/ec.h
index b89add60e0..2d36dd5ea7 100644
--- a/crypto/ec/ec.h
+++ b/crypto/ec/ec.h
@@ -715,7 +715,8 @@ int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1,
                                    unsigned int *k2, unsigned int *k3);
 # endif
 
-# define OPENSSL_EC_NAMED_CURVE  0x001
+# define OPENSSL_EC_EXPLICIT_CURVE  0x000
+# define OPENSSL_EC_NAMED_CURVE     0x001
 
 typedef struct ecpk_parameters_st ECPKPARAMETERS;
 
diff --git a/crypto/ec/ec_lib.c b/crypto/ec/ec_lib.c
index cc3dd35077..2dcdb40168 100644
--- a/crypto/ec/ec_lib.c
+++ b/crypto/ec/ec_lib.c
@@ -106,7 +106,7 @@ EC_GROUP *EC_GROUP_new(const EC_METHOD *meth)
         goto err;
 
     ret->curve_name = 0;
-    ret->asn1_flag = 0;
+    ret->asn1_flag = OPENSSL_EC_NAMED_CURVE;
     ret->asn1_form = POINT_CONVERSION_UNCOMPRESSED;
 
     ret->seed = NULL;