X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=src%2Fbignum.h;h=5eaa4028b79fb5fd75d23f47d42df4b3be7c9dc5;hb=18cf214528d14692941311be154214cab1772ed5;hp=5b4c78e7faf6490f14550e89146c7427a043ebe0;hpb=0424613ba24de94b58f6fa7bf1627fd4e2807208;p=novacoin.git

diff --git a/src/bignum.h b/src/bignum.h
index 5b4c78e..5eaa402 100644
--- a/src/bignum.h
+++ b/src/bignum.h
@@ -228,10 +228,13 @@ public:
     {
         std::vector<unsigned char> vch2(vch.size() + 4);
         unsigned int nSize = vch.size();
+        // BIGNUM's byte stream format expects 4 bytes of
+        // big endian size data info at the front
         vch2[0] = (nSize >> 24) & 0xff;
         vch2[1] = (nSize >> 16) & 0xff;
         vch2[2] = (nSize >> 8) & 0xff;
         vch2[3] = (nSize >> 0) & 0xff;
+        // swap data to big endian
         reverse_copy(vch.begin(), vch.end(), vch2.begin() + 4);
         BN_mpi2bn(&vch2[0], vch2.size(), this);
     }