From 895f868714f9422a757a95650345e0c662d12b49 Mon Sep 17 00:00:00 2001 From: Guus Sliepen Date: Sun, 3 Jul 2011 21:21:37 +0200 Subject: [PATCH] No need to keep around pointers to EC_GROUP. --- src/openssl/ecdh.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) diff --git a/src/openssl/ecdh.c b/src/openssl/ecdh.c index 642b3c3..7640674 100644 --- a/src/openssl/ecdh.c +++ b/src/openssl/ecdh.c @@ -28,10 +28,6 @@ #include "ecdh.h" #include "logger.h" -EC_GROUP *secp256k1 = NULL; -EC_GROUP *secp384r1 = NULL; -EC_GROUP *secp521r1 = NULL; - // TODO: proper KDF static void *kdf(const void *in, size_t inlen, void *out, size_t *outlen) { memcpy(out, in, inlen); @@ -40,9 +36,6 @@ static void *kdf(const void *in, size_t inlen, void *out, size_t *outlen) { } bool ecdh_generate_public(ecdh_t *ecdh, void *pubkey) { - if(!secp521r1) - secp521r1 = EC_GROUP_new_by_curve_name(NID_secp521r1); - *ecdh = EC_KEY_new_by_curve_name(NID_secp521r1); if(!EC_KEY_generate_key(*ecdh)) { logger(LOG_ERR, "Generating EC key failed: %s", ERR_error_string(ERR_get_error(), NULL)); @@ -55,7 +48,7 @@ bool ecdh_generate_public(ecdh_t *ecdh, void *pubkey) { abort(); } - size_t result = EC_POINT_point2oct(secp521r1, point, POINT_CONVERSION_COMPRESSED, pubkey, ECDH_SIZE, NULL); + size_t result = EC_POINT_point2oct(EC_KEY_get0_group(*ecdh), point, POINT_CONVERSION_COMPRESSED, pubkey, ECDH_SIZE, NULL); if(!result) { logger(LOG_ERR, "Converting EC_POINT to binary failed: %s", ERR_error_string(ERR_get_error(), NULL)); abort(); @@ -65,9 +58,9 @@ bool ecdh_generate_public(ecdh_t *ecdh, void *pubkey) { } bool ecdh_compute_shared(ecdh_t *ecdh, const void *pubkey, void *shared) { - EC_POINT *point = EC_POINT_new(secp521r1); + EC_POINT *point = EC_POINT_new(EC_KEY_get0_group(*ecdh)); - int result = EC_POINT_oct2point(secp521r1, point, pubkey, ECDH_SIZE, NULL); + int result = EC_POINT_oct2point(EC_KEY_get0_group(*ecdh), point, pubkey, ECDH_SIZE, NULL); if(!point) { logger(LOG_ERR, "Converting binary to EC_POINT failed: %s", ERR_error_string(ERR_get_error(), NULL)); abort(); -- 2.25.1