12 Aug '13, 4pm

Android security flaw puts Bitcoin users at risk

The Bitcoin Foundation has issued a security advisory warning users that have generated their Bitcoin wallet with an Android app that their Bitcoins can be easily stolen. The problem lies with the Android implementation of the Java SecureRandom class which, according to Google software developer Mike Hearn who also works on the Bitcoin virtual currency system, makes all private keys generated on Android devices weak and easily worked out by attackers. As each Bitcoin transaction must be signed with the private key associated with the Bitcoin address of the person that intends to transfer money, it's easy to see how knowing someone's cryptographic private key might allow a malicious individuals to empty that person's wallet. And when it comes to Bitcoin, no validly signed transaction can be reversed - meaning that the money transferred this way is lost to the original owner...

Full article: http://www.net-security.org/secworld.php?id=15390

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