diff options
Diffstat (limited to 'src/util.cpp')
-rw-r--r-- | src/util.cpp | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/src/util.cpp b/src/util.cpp index d8f05cb9fd..49ac3510f3 100644 --- a/src/util.cpp +++ b/src/util.cpp @@ -1276,12 +1276,26 @@ void AddTimeData(const CNetAddr& ip, int64 nTime) } } - - - - - - +uint32_t insecure_rand_Rz = 11; +uint32_t insecure_rand_Rw = 11; +void seed_insecure_rand(bool fDeterministic) +{ + //The seed values have some unlikely fixed points which we avoid. + if(fDeterministic) + { + insecure_rand_Rz = insecure_rand_Rw = 11; + } else { + uint32_t tmp; + do{ + RAND_bytes((unsigned char*)&tmp,4); + }while(tmp==0 || tmp==0x9068ffffU); + insecure_rand_Rz=tmp; + do{ + RAND_bytes((unsigned char*)&tmp,4); + }while(tmp==0 || tmp==0x464fffffU); + insecure_rand_Rw=tmp; + } +} string FormatVersion(int nVersion) { |