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Merge 3caee16946 into merged_master (Bitcoin PR #19953)

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Taproot :D
This commit is contained in:
Andrew Poelstra 2020-12-01 02:54:57 +00:00
commit e765fc93ea
45 changed files with 3034 additions and 139 deletions
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22
src/pubkey.cpp
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@ -7,6 +7,7 @@
#include <secp256k1.h>
#include <secp256k1_recovery.h>
#include <secp256k1_schnorrsig.h>
namespace
{
@ -166,6 +167,27 @@ int ecdsa_signature_parse_der_lax(const secp256k1_context* ctx, secp256k1_ecdsa_
return 1;
}
XOnlyPubKey::XOnlyPubKey(Span<const unsigned char> bytes)
{
assert(bytes.size() == 32);
std::copy(bytes.begin(), bytes.end(), m_keydata.begin());
}
bool XOnlyPubKey::VerifySchnorr(const uint256& msg, Span<const unsigned char> sigbytes) const
{
assert(sigbytes.size() == 64);
secp256k1_xonly_pubkey pubkey;
if (!secp256k1_xonly_pubkey_parse(secp256k1_context_verify, &pubkey, m_keydata.data())) return false;
return secp256k1_schnorrsig_verify(secp256k1_context_verify, sigbytes.data(), msg.begin(), &pubkey);
}
bool XOnlyPubKey::CheckPayToContract(const XOnlyPubKey& base, const uint256& hash, bool parity) const
{
secp256k1_xonly_pubkey base_point;
if (!secp256k1_xonly_pubkey_parse(secp256k1_context_verify, &base_point, base.data())) return false;
return secp256k1_xonly_pubkey_tweak_add_check(secp256k1_context_verify, m_keydata.begin(), parity, &base_point, hash.begin());
}
bool CPubKey::Verify(const uint256 &hash, const std::vector<unsigned char>& vchSig) const {
if (!IsValid())
return false;