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crypto: moved boost::lock_guard into a smaller scope

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This commit is contained in:
stoffu 2017-06-20 08:27:31 +09:00
parent c9e0e944e9
commit 8da82256d4
No known key found for this signature in database
GPG Key ID: 41DAB8343A9EC012
1 changed files with 5 additions and 4 deletions
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9
src/crypto/crypto.cpp
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@ -81,12 +81,16 @@ namespace crypto {
}
/* generate a random 32-byte (256-bit) integer and copy it to res */
static inline void random_scalar(ec_scalar &res) {
static inline void random_scalar_not_thread_safe(ec_scalar &res) {
unsigned char tmp[64];
generate_random_bytes_not_thread_safe(64, tmp);
sc_reduce(tmp);
memcpy(&res, tmp, 32);
}
static inline void random_scalar(ec_scalar &res) {
boost::lock_guard<boost::mutex> lock(random_lock);
random_scalar_not_thread_safe(res);
}
static inline void hash_to_scalar(const void *data, size_t length, ec_scalar &res) {
cn_fast_hash(data, length, reinterpret_cast<hash &>(res));
@ -99,7 +103,6 @@ namespace crypto {
*
*/
secret_key crypto_ops::generate_keys(public_key &pub, secret_key &sec, const secret_key& recovery_key, bool recover) {
boost::lock_guard<boost::mutex> lock(random_lock);
ge_p3 point;
secret_key rng;
@ -205,7 +208,6 @@ namespace crypto {
};
void crypto_ops::generate_signature(const hash &prefix_hash, const public_key &pub, const secret_key &sec, signature &sig) {
boost::lock_guard<boost::mutex> lock(random_lock);
ge_p3 tmp3;
ec_scalar k;
s_comm buf;
@ -405,7 +407,6 @@ POP_WARNINGS
const public_key *const *pubs, size_t pubs_count,
const secret_key &sec, size_t sec_index,
signature *sig) {
boost::lock_guard<boost::mutex> lock(random_lock);
size_t i;
ge_p3 image_unp;
ge_dsmp image_pre;