diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/base58.h | 2 | ||||
| -rw-r--r-- | src/bignum.h | 3 |
2 files changed, 5 insertions, 0 deletions
diff --git a/src/base58.h b/src/base58.h index 580bd3fc63..c2729d4770 100644 --- a/src/base58.h +++ b/src/base58.h @@ -38,6 +38,8 @@ inline std::string EncodeBase58(const unsigned char* pbegin, const unsigned char // Convert bignum to std::string std::string str; + // Expected size increase from base58 conversion is approximately 137% + // use 138% to be safe str.reserve((pend - pbegin) * 138 / 100 + 1); CBigNum dv; CBigNum rem; diff --git a/src/bignum.h b/src/bignum.h index 5b4c78e7fa..5eaa4028b7 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); } |