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added debug output for encryption/decryption of transactions

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This commit is contained in:
csoler 2016-01-03 17:33:14 -05:00
parent 8ec0e10019
commit 9f7af84347
1 changed files with 51 additions and 12 deletions
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63
libretroshare/src/gxs/rsgxsnetservice.cc
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@ -207,6 +207,8 @@
NXS_NET_DEBUG_3 publish key exchange
NXS_NET_DEBUG_4 vetting
NXS_NET_DEBUG_5 summary of transactions (useful to just know what comes in/out)
NXS_NET_DEBUG_6
NXS_NET_DEBUG_7 encryption/decryption of transactions
***/
//#define NXS_NET_DEBUG_0 1
//#define NXS_NET_DEBUG_1 1
@ -215,6 +217,7 @@
//#define NXS_NET_DEBUG_4 1
//#define NXS_NET_DEBUG_5 1
//#define NXS_NET_DEBUG_6 1
#define NXS_NET_DEBUG_7 1
#define GIXS_CUT_OFF 0
@ -236,7 +239,8 @@
// Debug system to allow to print only for some IDs (group, Peer, etc)
#if defined(NXS_NET_DEBUG_0) || defined(NXS_NET_DEBUG_1) || defined(NXS_NET_DEBUG_2) || defined(NXS_NET_DEBUG_3) || defined(NXS_NET_DEBUG_4) || defined(NXS_NET_DEBUG_5) || defined(NXS_NET_DEBUG_6)
#if defined(NXS_NET_DEBUG_0) || defined(NXS_NET_DEBUG_1) || defined(NXS_NET_DEBUG_2) || defined(NXS_NET_DEBUG_3) \
|| defined(NXS_NET_DEBUG_4) || defined(NXS_NET_DEBUG_5) || defined(NXS_NET_DEBUG_6) || defined(NXS_NET_DEBUG_7)
static const RsPeerId peer_to_print = RsPeerId(std::string("")) ;
static const RsGxsGroupId group_id_to_print = RsGxsGroupId(std::string("" )) ; // use this to allow to this group id only, or "" for all IDs
@ -245,7 +249,8 @@ static const uint32_t service_to_print = 0 ; // use
class nullstream: public std::ostream {};
#if defined(NXS_NET_DEBUG_0) || defined(NXS_NET_DEBUG_1) || defined(NXS_NET_DEBUG_2) || defined(NXS_NET_DEBUG_3) || defined(NXS_NET_DEBUG_4) || defined(NXS_NET_DEBUG_5)|| defined(NXS_NET_DEBUG_6)
#if defined(NXS_NET_DEBUG_0) || defined(NXS_NET_DEBUG_1) || defined(NXS_NET_DEBUG_2) || defined(NXS_NET_DEBUG_3) \
|| defined(NXS_NET_DEBUG_4) || defined(NXS_NET_DEBUG_5) || defined(NXS_NET_DEBUG_6) || defined(NXS_NET_DEBUG_7)
static std::string nice_time_stamp(time_t now,time_t TS)
{
if(TS == 0)
@ -3260,8 +3265,11 @@ bool RsGxsNetService::locked_addTransaction(NxsTransaction* tr)
bool RsGxsNetService::encryptTransaction(NxsTransaction *tr)
{
#ifdef NXS_NET_DEBUG_7
RsPeerId peerId = tr->mTransaction->PeerId() ;
GXSNETDEBUG_P_ (peerId) << "Service " << std::hex << ((mServiceInfo.mServiceType >> 8)& 0xffff) << std::dec << " - Encrypting transaction for peer " << peerId << ", for circle ID " << tr->destination_circle << std::endl;
#endif
std::cerr << "RsGxsNetService::encryptTransaction()" << std::endl;
std::cerr << " Circle Id: " << tr->destination_circle << std::endl;
// 1 - Find out the list of GXS ids to encrypt for
// We could do smarter things (like see if the peer_id owns one of the circle's identities
@ -3275,7 +3283,9 @@ bool RsGxsNetService::encryptTransaction(NxsTransaction *tr)
return false ;
}
std::cerr << " Dest Ids: " << std::endl;
#ifdef NXS_NET_DEBUG_7
GXSNETDEBUG_P_ (peerId) << " Dest Ids: " << std::endl;
#endif
std::vector<RsTlvSecurityKey> recipient_keys ;
for(std::list<RsGxsId>::const_iterator it(recipients.begin());it!=recipients.end();++it)
@ -3288,12 +3298,18 @@ bool RsGxsNetService::encryptTransaction(NxsTransaction *tr)
// we should probably request the key.
continue ;
}
std::cerr << " added key " << *it << std::endl;
#ifdef NXS_NET_DEBUG_7
GXSNETDEBUG_P_ (peerId) << " added key " << *it << std::endl;
#endif
recipient_keys.push_back(pkey) ;
}
// 2 - call GXSSecurity to make a header item that encrypts for the given list of peers.
#ifdef NXS_NET_DEBUG_7
GXSNETDEBUG_P_ (peerId) << " Encrypting..." << std::endl;
#endif
GxsSecurity::MultiEncryptionContext muctx ;
GxsSecurity::initEncryption(muctx,recipient_keys);
@ -3328,6 +3344,9 @@ bool RsGxsNetService::encryptTransaction(NxsTransaction *tr)
enc_item->aes_encrypted_data.tlvtype = TLV_TYPE_BIN_ENCRYPTED ;
encrypted_items.push_back(enc_item) ;
#ifdef NXS_NET_DEBUG_7
GXSNETDEBUG_P_(peerId) << " encrypted item of size " << encrypted_len << std::endl;
#endif
}
// 4 - put back in transaction.
@ -3339,13 +3358,18 @@ bool RsGxsNetService::encryptTransaction(NxsTransaction *tr)
// 5 - make session key item and push it front.
#ifdef NXS_NET_DEBUG_7
GXSNETDEBUG_P_(peerId) << " Creating session key" << std::endl;
#endif
RsNxsSessionKeyItem *session_key_item = new RsNxsSessionKeyItem(mServType) ;
memcpy(session_key_item->iv,muctx.initialisation_vector(),EVP_MAX_IV_LENGTH) ;
for(int i=0;i<muctx.n_encrypted_keys();++i)
{
std::cerr << " addign session key for ID " << muctx.encrypted_key_id(i) << std::endl;
#ifdef NXS_NET_DEBUG_7
GXSNETDEBUG_P_(peerId) << " addign session key for ID " << muctx.encrypted_key_id(i) << std::endl;
#endif
RsTlvBinaryData data ;
data.setBinData(muctx.encrypted_key_data(i), muctx.encrypted_key_size(i)) ;
@ -3360,8 +3384,11 @@ bool RsGxsNetService::encryptTransaction(NxsTransaction *tr)
bool RsGxsNetService::decryptTransaction(NxsTransaction *tr)
{
std::cerr << "RsGxsNetService::decryptTransaction()" << std::endl;
std::cerr << " Circle Id: " << tr->destination_circle << std::endl;
#ifdef NXS_NET_DEBUG_7
RsPeerId peerId = tr->mTransaction->PeerId() ;
GXSNETDEBUG_P_(peerId) << "RsGxsNetService::decryptTransaction()" << std::endl;
GXSNETDEBUG_P_(peerId) << " Circle Id: " << tr->destination_circle << std::endl;
#endif
// 1 - Checks that the transaction is encrypted. It should contain
// one packet with an encrypted session key for the group,
@ -3375,7 +3402,9 @@ bool RsGxsNetService::decryptTransaction(NxsTransaction *tr)
if(esk == NULL)
{
std::cerr << " (II) nothing to decrypt. No session key packet in this transaction." << std::endl;
#ifdef NXS_NET_DEBUG_7
GXSNETDEBUG_P_(peerId) << " (II) nothing to decrypt. No session key packet in this transaction." << std::endl;
#endif
return false ;
}
// 2 - Try to decrypt the session key. If not, return false. That probably means
@ -3400,7 +3429,9 @@ bool RsGxsNetService::decryptTransaction(NxsTransaction *tr)
return false;
}
std::cerr << " found appropriate private key to decrypt session key: " << it->first << std::endl;
#ifdef NXS_NET_DEBUG_7
GXSNETDEBUG_P_(peerId) << " found appropriate private key to decrypt session key: " << it->first << std::endl;
#endif
break ;
}
@ -3415,6 +3446,10 @@ bool RsGxsNetService::decryptTransaction(NxsTransaction *tr)
std::cerr << " (EE) cannot decrypt transaction. initDecryption() failed." << std::endl;
return false ;
}
#ifdef NXS_NET_DEBUG_7
GXSNETDEBUG_P_(peerId) << " Session key successfully decrypted, with length " << ek.bin_len << std::endl;
GXSNETDEBUG_P_(peerId) << " Now, decrypting transaction items..." << std::endl;
#endif
// 3 - Using session key, decrypt all packets, by calling GXSSecurity.
@ -3436,7 +3471,9 @@ bool RsGxsNetService::decryptTransaction(NxsTransaction *tr)
RsItem *ditem = serial.deserialise(tempmem,&tempmemsize) ;
std::cerr << " Decrypted an item of type " << std::hex << ditem->PacketId() << std::dec << std::endl;
#ifdef NXS_NET_DEBUG_7
GXSNETDEBUG_P_(peerId) << " Decrypted an item of type " << std::hex << ditem->PacketId() << std::dec << std::endl;
#endif
RsNxsItem *nxsi = dynamic_cast<RsNxsItem*>(ditem) ;
@ -3452,7 +3489,9 @@ bool RsGxsNetService::decryptTransaction(NxsTransaction *tr)
// 4 - put back in transaction.
std::cerr << " replacing items with clear items" << std::endl;
#ifdef NXS_NET_DEBUG_7
GXSNETDEBUG_P_(peerId) << " replacing items with clear items" << std::endl;
#endif
for(std::list<RsNxsItem*>::const_iterator it(tr->mItems.begin());it!=tr->mItems.end();++it)
delete *it ;