Difference between revisions of "Bitcoin and Litecoin Comparison"
From Litecoin Wiki
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* Unstable difficulty might encourage chain hopping. | * Unstable difficulty might encourage chain hopping. | ||
| − | * Less security from attacks that rely on lowering the difficulty. Example: an attacker makes a one time investment in hash power, uses this hash power to start extending a recent block with his own fork of consecutive blocks while lowering the difficulty (easier to do with the shorter retarget window), isolates a node of e.g. some online bank from the rest of the network, waits until his fork is longer than what this node has already seen in the real blockchain, broadcasts his forked chain to this node, and with the lower difficulty he now needs less hash power to continue to communicate with the isolated node until it agrees to transact in the forked chain. | + | * Less security from attacks that rely on lowering the difficulty. Example: an attacker makes a one time investment in hash power, uses this hash power to start extending a recent block with his own fork of consecutive blocks while lowering the difficulty (easier to do with the shorter retarget window), isolates a node of e.g. some online bank from the rest of the network, waits until his fork is longer than what this node has already seen in the real blockchain, broadcasts his forked chain to this node, and with the lower difficulty he now needs less hash power to continue to communicate with the isolated node until it agrees to transact in the forked chain. [https://bitcointalk.org/index.php?topic=46498.msg556137#msg556137] |
==Total number of coins in existence== | ==Total number of coins in existence== | ||
