We’ve finally got Authenticode certificate.

Current win32 builds of 0.4.4.7 were replaced with signed executables.

https://sourceforge.net/projects/novacoin/files/novacoin-nosetup-0.4.4.7-bugfix4-win32-openssl-1.0.1g.zip/download
https://sourceforge.net/projects/novacoin/files/novacoin-nosetup-0.4.4.7-bugfix4-win32-amd64-openssl-1.0.1g.zip/download

Subject: *.novaco.in RapidSSL Wildcard Order: 1……2 Complete

Dear A…,

Congratulations! RapidSSL has approved your request for a RapidSSL Wildcard certificate. Your certificate is included at the end of this email.

Today we are planning to move to https protocol on domain.

At the request of member fredeq been implemented API: http://explorer.novaco.in/api/

If you have any need, may be possible to consider and implement it.

Quote

A bug in OpenSSL, used by Bitcoin-Qt/Bitcoin Core, could allow your bitcoins to be stolen. Immediately updating Bitcoin Core to 0.9.1 is required in some cases, especially if you’re using 0.9.0
https://bitcoin.org/bin/0.9.1/

Win32 builds were rebuilt using patched openssl library. Zipballs are available to download on sourceforge:
Continue reading →

Linux static builds were added for 0.4.4.6 update3:

• x86_64
• i686
• ARMv6

Some fixes were merged to resolve address book page and listtransactions issues (special thanks to svost for his investigation).

https://github.com/novacoin-project/novacoin/pull/9
https://github.com/novacoin-project/novacoin/pull/10

• Qt: fix known addressbook bugs (duplicate addresses etc.);
• Core: Avoid trying to parse outputs that aren’t relevant to CWalletTx::GetAmounts;
• Core: Supress “address” key in transaction details, when the destination isn’t recognized;
• Qt: copyrights update.

Windows nosetup builds:

0.4.4.6 update3: [ AMD64 | i686 ]
0.4.4.7 bugfix4: [ AMD64 | i686 ]

Linux, OS X builds and installers will be published later.

Windows nosetup builds of 0.4.4.6 update2 and 0.4.4.7 bugfix3 were published.

0.4.4.6 update2 changes list:

• Extend transaction script checkings to fight with transaction malleability issues;
• Reject connections from obsolete clients;
• New dnsseed node.

Continue reading →

New dns seed node is up and added to sources tree. So, currently we have

• dnsseed.novaco.in
• dnsseed.novacoin.ru
• dnsseed.novacoin.su

another one probably will be added later.

A new proposal for Proof-of-Work signing protocol is currently under development. It would provide stakeholders an ability to vote for Proof-of-Work blocks they’ve received. What is interesting, it’s possible to implement without breaking a compatibility with nodes that doesn’t support this protocol.

A main idea is quite simple:

1. Proof-of-Work miner submits a new block over the network;
2. New block is accepted as a “candidate” (score = 1);
3. Each node builds a deterministic list of stake generators from the past (64 items, for example);
4. Stake holder appends own signature to vchBlockSig field (currently it’s not used) and then submits signed block over the network;
5. Once enough signatures collected (16 of 64, for example) new block is accepted into block chain as a “full value” block (score is equal with provided by the current proof-of-work score policy).

This process would be able to prevent malicious miner from creating a secretly pre-mined chain in order to perform 51%+ attack even if he has 99% of hashing power and significant stake volume. Because he can’t collect enough signatures while keeping his chain secret.

https://github.com/novacoin-project/novacoin/pull/6

Not accepted yet, but ready for testing. It introduces metahash field which contains a hash of transaction metadata.

Continue reading →