Tagged Questions
17
votes
1answer
1k views
Could one prevent double spending in decentralized digital currencies (like Bitcoin) without all transactions being public?
A recent approach to creating a decentralized online currency, called Bitcoin, has been generating some interest. The goal is to have a way to transfer currency without a central authority and without ...
14
votes
2answers
680 views
How secure is the Bitcoin protocol?
Are there any evidence (other than not being cracked so far) that the Bitcoin protocol is secure? "How secure" is it?
(I realize that this might not qualify as a meaningful question - feel free to ...
11
votes
1answer
379 views
How to provide secure “vanity” bitcoin address service?
Bitcoin addresses are RIPEMD-160 hashes of the public portion of a public/private ECDSA keypair (along with an abbreviated hash of the hash to provide a check code, as @pulpspy notes in a comment). ...
