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Remove template matching and pseudo opcodes

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The current code contains a rather complex script template matching engine,
which is only used for 3 particular script types (P2PK, P2PKH, multisig).
The first two of these are trivial to match for otherwise, and a specialized
matcher for multisig is both more compact and more efficient than a generic
one.

The goal is being more flexible, so that for example larger standard multisigs
inside SegWit outputs are more easy to implement.

As a side-effect, it also gets rid of the pseudo opcodes hack.
This commit is contained in:
Pieter Wuille
2018-05-08 20:24:06 -07:00
parent 6b824c090f
commit c814e2e7e8
4 changed files with 69 additions and 106 deletions
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8
src/pubkey.h
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@@ -33,10 +33,10 @@ public:
/**
* secp256k1:
*/
static const unsigned int PUBLIC_KEY_SIZE = 65;
static const unsigned int COMPRESSED_PUBLIC_KEY_SIZE = 33;
static const unsigned int SIGNATURE_SIZE = 72;
static const unsigned int COMPACT_SIGNATURE_SIZE = 65;
static constexpr unsigned int PUBLIC_KEY_SIZE = 65;
static constexpr unsigned int COMPRESSED_PUBLIC_KEY_SIZE = 33;
static constexpr unsigned int SIGNATURE_SIZE = 72;
static constexpr unsigned int COMPACT_SIGNATURE_SIZE = 65;
/**
* see www.keylength.com
* script supports up to 75 for single byte push