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Peer::getSessionCookie

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This commit is contained in:
JoelKatz
2012-04-28 17:40:40 -07:00
parent aa570192dc
commit daf696042d
2 changed files with 23 additions and 0 deletions
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21
src/Peer.cpp
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@@ -665,6 +665,27 @@ void Peer::recvLedger(newcoin::TMLedgerData& packet)
punishPeer(PP_UNWANTED_DATA); punishPeer(PP_UNWANTED_DATA);
} }
std::vector<unsigned char> Peer::getSessionCookie()
{
// get session information we can sign
// (both sides get the same information, neither side controls it)
SSL* ssl = mSocketSsl.native_handle();
if (!ssl) throw std::runtime_error("No underlying connection");
// Get both finished messages
unsigned char s1[1024], s2[1024];
int l1 = SSL_get_finished(ssl, s1, 1024);
int l2 = SSL_get_finished(ssl, s2, 1024);
if ((l1 < 16) || (l2 < 16)) throw std::runtime_error("Connection setup not complete");
// Hash them and XOR the results
unsigned char sha1[32], sha2[32];
SHA512(s1, l1, sha1);
SHA512(s2, l2, sha2);
for(int i=0; i<32; i++) sha1[i]^=sha2[i];
return std::vector<unsigned char>(sha1, sha1+33);
}
void Peer::sendHello() void Peer::sendHello()
{ {
// XXX Start timer for hello required by. // XXX Start timer for hello required by.

2
src/Peer.h
View File

@@ -78,6 +78,8 @@ protected:
void recvGetLedger(newcoin::TMGetLedger& packet); void recvGetLedger(newcoin::TMGetLedger& packet);
void recvLedger(newcoin::TMLedgerData& packet); void recvLedger(newcoin::TMLedgerData& packet);
std::vector<unsigned char> getSessionCookie();
public: public:
typedef boost::shared_ptr<Peer> pointer; typedef boost::shared_ptr<Peer> pointer;