twisterarmy/twister-core
1
0
Fork 0
mirror of https://github.com/twisterarmy/twister-core.git synced 2025-02-02 09:54:29 +00:00
Code Issues Projects Releases Wiki Activity

Merge pull request #2114 from sipa/strictstrict

Browse Source 
Make IsCanonicalScript() check the hash type more thoroughly
This commit is contained in:
Gavin Andresen 2013-01-23 07:08:55 -08:00
commit c429f2b062
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/script.cpp
View File

@ -278,7 +278,8 @@ bool IsCanonicalSignature(const valtype &vchSig) {
return error("Non-canonical signature: too short"); return error("Non-canonical signature: too short");
if (vchSig.size() > 73) if (vchSig.size() > 73)
return error("Non-canonical signature: too long"); return error("Non-canonical signature: too long");
if (vchSig[vchSig.size() - 1] & 0x7C) unsigned char nHashType = vchSig[vchSig.size() - 1] & (~(SIGHASH_ANYONECANPAY));
if (nHashType < SIGHASH_ALL || nHashType > SIGHASH_SINGLE)
return error("Non-canonical signature: unknown hashtype byte"); return error("Non-canonical signature: unknown hashtype byte");
if (vchSig[0] != 0x30) if (vchSig[0] != 0x30)
return error("Non-canonical signature: wrong type"); return error("Non-canonical signature: wrong type");