What is the origin of insecure 64-bit nonces in signatures in the Bitcoin chain?
In Biased Nonce Sense: Lattice Attacks against Weak ECDSA Signatures in Cryptocurrencies Joachim Breitner and Nadia Heninger use a lattice based algorithm to recover private keys from signatures in...
View ArticleWhen encrypting password hashes, how to handle nonces?
I know that encrypting password hashes is a contentious issue. However, I have seen it recommended in some quarters. I know for instance that DropBox did this at one time with AES256. In these cases,...
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