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-rw-r--r--src/util.cpp26
1 files changed, 20 insertions, 6 deletions
diff --git a/src/util.cpp b/src/util.cpp
index 1f66aff609..4eff6ce71b 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -1281,12 +1281,26 @@ 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)
{