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A valid digital signature gives a recipient reason to believe that the message was created by a known sender, such that the sender cannot deny having sent the m
by VMG 13y ago
A valid digital signature gives a recipient reason to believe that the message was created by a known sender, such that the sender cannot deny having sent the message (authentication and non-repudiation) and that the message was not altered in transit (integrity).
http://en.wikipedia.org/wiki/Digital_signature http://en.wikipedia.org/wiki/Digital_signature
The purpose of the blockchain is to establish an ordered sequence of transactions.
- lmm 13y agoSure, but no-one calculates digital signatures in their head. Your bitcoins are worthless without computer systems, and those computer systems are the subject of attack by thieves.
- VMG 13y agoSure, but this attack is not about that. This is a DDOS attack on the integrity on the distributed database, which is very bad, but not able to spend Bitcoin that isn't yours.