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| author | Adam Ierymenko <adam.ierymenko@gmail.com> | 2013-07-13 13:26:27 -0400 |
|---|---|---|
| committer | Adam Ierymenko <adam.ierymenko@gmail.com> | 2013-07-13 13:26:27 -0400 |
| commit | 3e49337d9a773a5d805a908bc093b5d72985d8d9 (patch) | |
| tree | dd8bf524287442c1c3a30f9390d712b77c0e53d0 /node/Node.cpp | |
| parent | c6dd5b239ff30a192c5bc6e784fd5d4b3085646d (diff) | |
| download | infinitytier-3e49337d9a773a5d805a908bc093b5d72985d8d9.tar.gz infinitytier-3e49337d9a773a5d805a908bc093b5d72985d8d9.zip | |
Add a fast non-cryptographic PRNG.
Diffstat (limited to 'node/Node.cpp')
| -rw-r--r-- | node/Node.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/node/Node.cpp b/node/Node.cpp index 976de742..265b77e4 100644 --- a/node/Node.cpp +++ b/node/Node.cpp @@ -193,8 +193,11 @@ Node::ReasonForTermination Node::run() std::string ovsPath(_r->homePath + ZT_PATH_SEPARATOR_S + "thisdeviceismine"); if (((Utils::now() - Utils::getLastModified(ovsPath.c_str())) >= ZT_OVS_GENERATE_NEW_IF_OLDER_THAN)||(!Utils::readFile(ovsPath.c_str(),_r->ownershipVerificationSecret))) { _r->ownershipVerificationSecret = ""; - for(unsigned int i=0;i<24;++i) - _r->ownershipVerificationSecret.push_back("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"[Utils::randomInt<unsigned int>() % 62]); + unsigned int securern = 0; + for(unsigned int i=0;i<24;++i) { + Utils::getSecureRandom(&securern,sizeof(securern)); + _r->ownershipVerificationSecret.push_back("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"[securern % 62]); + } _r->ownershipVerificationSecret.append(ZT_EOL_S); if (!Utils::writeFile(ovsPath.c_str(),_r->ownershipVerificationSecret)) return impl->terminateBecause(Node::NODE_UNRECOVERABLE_ERROR,"could not write 'thisdeviceismine' (home path not writable?)"); |