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January 11, 2015 admin 0

Armory 0.93 Bug Bounty: 0.05 BTC per bug!

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Armory Bitcoin Wallet 0.93 test release is live and it has a  Bug Bounty: you can get  0.05 BTC per bug! The team has reworked on the blockchain engine as well as the inter-thread communication.  Much of Armory looks the same as it did in previous versions, but now it’s 100% scalable, handling wallets that even have a 1,000,000+ addresses and transactions in their history.

Armory also does things in the background such as address and wallet imports, which no longer force you offline.  Because of the new threading engine, there’s a whole class of stability problems that don’t exist anymore (specifically BDM timeout errors that cascaded into unusability and required restarting Armory;  usually with larger wallets).

This thread for more information: https://bitcointalk.org/index.php?topic=919202.0

January 10, 2015 admin 0

Bitcoin Core users on Linux must not upgrade to the latest version of OpenSSL

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OpenSSL 1.0.0p / 1.0.1k was recently released. This OpenSSL update is incompatible with the Bitcoin system and could lead to consensus forks. Bitcoin Core released binaries from Bitcoin.org are unaffected. If you are running third-party or self-compiled Bitcoin Core or an alternative implementation (altcoin) using OpenSSL you must not update OpenSSL.

The incompatibility is due to the OpenSSL update changing the behavior of ECDSA validation to reject any signature which is not encoded in a very rigid manner.

If you are using Bitcoin Core on Linux and use the latest version of OpenSSL you may have some problems:

  • your client might become stuck at a particular block, and you’ll have to reindex the block chain to fix it.
  • incoming transactions may have 6+ confirmations when the transactions are actually invalid.
  •  you could conceivably start mining on a false chain, which would cause you to lose all of your future blocks until you fix this.

To be unaffected, do not update OpenSSL if you are running Bitcoin core and Linux.

See the original post by gmaxwell, one of the bitcoin core developers: http://sourceforge.net/p/bitcoin/mailman/message/33221963/

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