foster/bitcoin-core
0
0
Fork 0
mirror of https://github.com/bitcoin/bitcoin.git synced 2025-03-06 14:19:59 -05:00
Code Issues Activity

Allow private keys with less-than-32-byte secrets

Browse source
This commit is contained in:
Pieter Wuille 2013-05-24 05:32:53 +02:00
parent 8ee97f87ac
commit e3c5c26f54
1 changed files with 3 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
src/impl/ecdsa.h
View file

@ -239,10 +239,10 @@ int static secp256k1_ecdsa_privkey_parse(secp256k1_num_t *key, const unsigned ch
if (end < privkey+3 || privkey[0] != 0x02 || privkey[1] != 0x01 || privkey[2] != 0x01)
return 0;
privkey += 3;
// sequence element 1: octet string, 32 bytes
if (end < privkey+34 || privkey[0] != 0x04 || privkey[1] != 0x20)
// sequence element 1: octet string, up to 32 bytes
if (end < privkey+2 || privkey[0] != 0x04 || privkey[1] > 0x20 || end < privkey+2+privkey[1])
return 0;
secp256k1_num_set_bin(key, privkey+2, 32);
secp256k1_num_set_bin(key, privkey+2, privkey[1]);
return 1;
}