frost/secp256k1-zkp
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Try to not leave secret data on the stack or heap.

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This makes a basic effort and has not been audited.
Doesn't appear to have a measurable performance impact on bench.

It also adds a secp256k1_num_free to secp256k1_ecdsa_pubkey_create.
This commit is contained in:
Gregory Maxwell
2014-08-14 06:58:57 -07:00
parent 13e44df743
commit 2f6c801911
11 changed files with 84 additions and 3 deletions
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7
src/group.h
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@@ -112,4 +112,11 @@ void static secp256k1_gej_mul_lambda(secp256k1_gej_t *r, const secp256k1_gej_t *
void static secp256k1_gej_split_exp(secp256k1_num_t *r1, secp256k1_num_t *r2, const secp256k1_num_t *a);
#endif
/** Clear a secp256k1_gej_t to prevent leaking sensitive information. */
void static secp256k1_gej_clear(secp256k1_gej_t *r);
/** Clear a secp256k1_ge_t to prevent leaking sensitive information. */
void static secp256k1_ge_clear(secp256k1_ge_t *r);
#endif