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Merge bitcoin-core/secp256k1#1650: schnorrsig: clear out masked secret key in BIP-340 nonce function

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a82287fb85 schnorrsig: clear out masked secret key in BIP-340 nonce function (Sebastian Falbesoner)

Pull request description:

ACKs for top commit:
  real-or-random:
    utACK a82287fb85
  jonasnick:
    ACK a82287fb85

Tree-SHA512: 0e77ddc299e204edae238759e549d4e8314abb730a654580a109ec05daf53a625be1cc37664a9e00fd41cf34a94abede96b547e661cdf18c40c50141e7b4ee0e
This commit is contained in:
Jonas Nick
2025-01-29 14:02:11 +00:00
parent f79f46c703 a82287fb85
commit 00774d0723
1 changed files with 2 additions and 0 deletions
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2
src/modules/schnorrsig/main_impl.h
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@@ -94,6 +94,8 @@ static int nonce_function_bip340(unsigned char *nonce32, const unsigned char *ms
secp256k1_sha256_write(&sha, msg, msglen);
secp256k1_sha256_finalize(&sha, nonce32);
secp256k1_sha256_clear(&sha);
secp256k1_memclear(masked_key, sizeof(masked_key));
return 1;
}