13 Aug '13, 11pm

#Android Cryptographic Issue May Affect Hundreds of Thousands of Apps #Bitcoin

#Android Cryptographic Issue May Affect Hundreds of Thousands of Apps #Bitcoin

There’s been a lot of confusion over the last few days, since bitcoin.org announced that an Android component responsible for generating secure random numbers contained a critical weakness that rendered many Android bitcoin wallets vulnerable. There are a number of different issues that seem to have come into play to make these bitcoin wallets vulnerable. Bitcoin uses the ECDSA algorithm to ensure that funds can only be spent by their rightful owners. The algorithm requires a random number to compute an ECDSA signature, but if two different messages are signed with the same private key and the same random number, the private key can be derived. This is a known method of attacking the algorithm and was previously used to break the security of other products, such as the PlayStation 3 master key On the Android side, the implementation of the SecureRandom class may be vulnera...

Full article: http://www.symantec.com/connect/blogs/android-cryptograph...

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