diff options
Diffstat (limited to 'src/key.h')
| -rw-r--r-- | src/key.h | 25 |
1 files changed, 21 insertions, 4 deletions
@@ -1,5 +1,5 @@ // Copyright (c) 2009-2010 Satoshi Nakamoto -// Copyright (c) 2009-2019 The Bitcoin Core developers +// Copyright (c) 2009-2021 The Bitcoin Core developers // Copyright (c) 2017 The Zcash developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. @@ -17,7 +17,6 @@ /** - * secure_allocator is defined in allocators.h * CPrivKey is a serialized private key, with all parameters included * (SIZE bytes) */ @@ -86,6 +85,7 @@ public: //! Simple read-only vector-like interface. unsigned int size() const { return (fValid ? keydata.size() : 0); } + const unsigned char* data() const { return keydata.data(); } const unsigned char* begin() const { return keydata.data(); } const unsigned char* end() const { return keydata.data() + size(); } @@ -128,6 +128,23 @@ public: */ bool SignCompact(const uint256& hash, std::vector<unsigned char>& vchSig) const; + /** + * Create a BIP-340 Schnorr signature, for the xonly-pubkey corresponding to *this, + * optionally tweaked by *merkle_root. Additional nonce entropy is provided through + * aux. + * + * merkle_root is used to optionally perform tweaking of the private key, as specified + * in BIP341: + * - If merkle_root == nullptr: no tweaking is done, sign with key directly (this is + * used for signatures in BIP342 script). + * - If merkle_root->IsNull(): sign with key + H_TapTweak(pubkey) (this is used for + * key path spending when no scripts are present). + * - Otherwise: sign with key + H_TapTweak(pubkey || *merkle_root) + * (this is used for key path spending, with specific + * Merkle root of the script tree). + */ + bool SignSchnorr(const uint256& hash, Span<unsigned char> sig, const uint256* merkle_root, const uint256& aux) const; + //! Derive BIP32 child key. bool Derive(CKey& keyChild, ChainCode &ccChild, unsigned int nChild, const ChainCode& cc) const; @@ -151,7 +168,7 @@ struct CExtKey { friend bool operator==(const CExtKey& a, const CExtKey& b) { return a.nDepth == b.nDepth && - memcmp(&a.vchFingerprint[0], &b.vchFingerprint[0], sizeof(vchFingerprint)) == 0 && + memcmp(a.vchFingerprint, b.vchFingerprint, sizeof(vchFingerprint)) == 0 && a.nChild == b.nChild && a.chaincode == b.chaincode && a.key == b.key; @@ -161,7 +178,7 @@ struct CExtKey { void Decode(const unsigned char code[BIP32_EXTKEY_SIZE]); bool Derive(CExtKey& out, unsigned int nChild) const; CExtPubKey Neuter() const; - void SetSeed(const unsigned char* seed, unsigned int nSeedLen); + void SetSeed(Span<const uint8_t> seed); }; /** Initialize the elliptic curve support. May not be called twice without calling ECC_Stop first. */ |