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schnorrsig: clear out masked secret key in BIP-340 nonce function

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Sebastian Falbesoner
2025-01-29 03:59:32 +01:00
parent f79f46c703
commit a82287fb85
1 changed files with 2 additions and 0 deletions
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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_write(&sha, msg, msglen);
secp256k1_sha256_finalize(&sha, nonce32); secp256k1_sha256_finalize(&sha, nonce32);
secp256k1_sha256_clear(&sha); secp256k1_sha256_clear(&sha);
secp256k1_memclear(masked_key, sizeof(masked_key));
return 1; return 1;
} }