Separate CScriptCompressor

1 files changed, 0 insertions, 121 deletions

diff --git a/src/scriptutils.cpp b/src/scriptutils.cpp
index cede11d6a7..cc38706d34 100644
--- a/src/scriptutils.cpp
+++ b/src/scriptutils.cpp
@@ -369,124 +369,3 @@ CScript CombineSignatures(CScript scriptPubKey, const CTransaction& txTo, unsign
 
     return CombineSignatures(scriptPubKey, txTo, nIn, txType, vSolutions, stack1, stack2);
 }
-
-bool CScriptCompressor::IsToKeyID(CKeyID &hash) const
-{
-    if (script.size() == 25 && script[0] == OP_DUP && script[1] == OP_HASH160
-                            && script[2] == 20 && script[23] == OP_EQUALVERIFY
-                            && script[24] == OP_CHECKSIG) {
-        memcpy(&hash, &script[3], 20);
-        return true;
-    }
-    return false;
-}
-
-bool CScriptCompressor::IsToScriptID(CScriptID &hash) const
-{
-    if (script.size() == 23 && script[0] == OP_HASH160 && script[1] == 20
-                            && script[22] == OP_EQUAL) {
-        memcpy(&hash, &script[2], 20);
-        return true;
-    }
-    return false;
-}
-
-bool CScriptCompressor::IsToPubKey(CPubKey &pubkey) const
-{
-    if (script.size() == 35 && script[0] == 33 && script[34] == OP_CHECKSIG
-                            && (script[1] == 0x02 || script[1] == 0x03)) {
-        pubkey.Set(&script[1], &script[34]);
-        return true;
-    }
-    if (script.size() == 67 && script[0] == 65 && script[66] == OP_CHECKSIG
-                            && script[1] == 0x04) {
-        pubkey.Set(&script[1], &script[66]);
-        return pubkey.IsFullyValid(); // if not fully valid, a case that would not be compressible
-    }
-    return false;
-}
-
-bool CScriptCompressor::Compress(std::vector<unsigned char> &out) const
-{
-    CKeyID keyID;
-    if (IsToKeyID(keyID)) {
-        out.resize(21);
-        out[0] = 0x00;
-        memcpy(&out[1], &keyID, 20);
-        return true;
-    }
-    CScriptID scriptID;
-    if (IsToScriptID(scriptID)) {
-        out.resize(21);
-        out[0] = 0x01;
-        memcpy(&out[1], &scriptID, 20);
-        return true;
-    }
-    CPubKey pubkey;
-    if (IsToPubKey(pubkey)) {
-        out.resize(33);
-        memcpy(&out[1], &pubkey[1], 32);
-        if (pubkey[0] == 0x02 || pubkey[0] == 0x03) {
-            out[0] = pubkey[0];
-            return true;
-        } else if (pubkey[0] == 0x04) {
-            out[0] = 0x04 | (pubkey[64] & 0x01);
-            return true;
-        }
-    }
-    return false;
-}
-
-unsigned int CScriptCompressor::GetSpecialSize(unsigned int nSize) const
-{
-    if (nSize == 0 || nSize == 1)
-        return 20;
-    if (nSize == 2 || nSize == 3 || nSize == 4 || nSize == 5)
-        return 32;
-    return 0;
-}
-
-bool CScriptCompressor::Decompress(unsigned int nSize, const std::vector<unsigned char> &in)
-{
-    switch(nSize) {
-    case 0x00:
-        script.resize(25);
-        script[0] = OP_DUP;
-        script[1] = OP_HASH160;
-        script[2] = 20;
-        memcpy(&script[3], &in[0], 20);
-        script[23] = OP_EQUALVERIFY;
-        script[24] = OP_CHECKSIG;
-        return true;
-    case 0x01:
-        script.resize(23);
-        script[0] = OP_HASH160;
-        script[1] = 20;
-        memcpy(&script[2], &in[0], 20);
-        script[22] = OP_EQUAL;
-        return true;
-    case 0x02:
-    case 0x03:
-        script.resize(35);
-        script[0] = 33;
-        script[1] = nSize;
-        memcpy(&script[2], &in[0], 32);
-        script[34] = OP_CHECKSIG;
-        return true;
-    case 0x04:
-    case 0x05:
-        unsigned char vch[33] = {};
-        vch[0] = nSize - 2;
-        memcpy(&vch[1], &in[0], 32);
-        CPubKey pubkey(&vch[0], &vch[33]);
-        if (!pubkey.Decompress())
-            return false;
-        assert(pubkey.size() == 65);
-        script.resize(67);
-        script[0] = 65;
-        memcpy(&script[1], pubkey.begin(), 65);
-        script[66] = OP_CHECKSIG;
-        return true;
-    }
-    return false;
-}