diff options
| -rw-r--r-- | src/ecwrapper.cpp | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/src/ecwrapper.cpp b/src/ecwrapper.cpp index 5e3aec25ba..f94bc954fd 100644 --- a/src/ecwrapper.cpp +++ b/src/ecwrapper.cpp @@ -13,6 +13,29 @@ namespace { +class ecgroup_order +{ +public: + static const EC_GROUP* get() + { + static const ecgroup_order wrapper; + return wrapper.pgroup; + } + +private: + ecgroup_order() + : pgroup(EC_GROUP_new_by_curve_name(NID_secp256k1)) + { + } + + ~ecgroup_order() + { + EC_GROUP_free(pgroup); + } + + EC_GROUP* pgroup; +}; + /** * Perform ECDSA key recovery (see SEC1 4.1.6) for curves over (mod p)-fields * recid selects which key is recovered @@ -92,8 +115,10 @@ err: } // anon namespace CECKey::CECKey() { - pkey = EC_KEY_new_by_curve_name(NID_secp256k1); + pkey = EC_KEY_new(); assert(pkey != NULL); + int result = EC_KEY_set_group(pkey, ecgroup_order::get()); + assert(result); } CECKey::~CECKey() { @@ -185,11 +210,9 @@ bool CECKey::TweakPublic(const unsigned char vchTweak[32]) { bool CECKey::SanityCheck() { - EC_KEY *pkey = EC_KEY_new_by_curve_name(NID_secp256k1); - if(pkey == NULL) + const EC_GROUP *pgroup = ecgroup_order::get(); + if(pgroup == NULL) return false; - EC_KEY_free(pkey); - // TODO Is there more EC functionality that could be missing? return true; } |