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Clare Laylock 2023-10-30 08:48:44 -04:00
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ch12_mining.adoc
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@ -1505,7 +1505,7 @@ needed to force a very deep fork is immense, making old blocks
very hard to change. Hashrate attacks also do not affect the security
of the private keys and signing algorithms.
One attack scenario against the consensus mechanism is ((("majority attacks", id="majority-attack")))((("51% attacks", primary-sortas="fifty-one percent attacks", id="attack-51")))((("double-spend attacks", id="double-spend")))called the _majority
One attack scenario against the consensus mechanism is ((("majority attacks", id="majority-attack")))((("51% attacks", id="attack-51")))((("double-spend attacks", id="double-spend")))called the _majority
attack_ or _51% attack._ In this scenario a group of miners, controlling a majority
of the total network's hashing power (such as 51%), collude to attack Bitcoin.
With the ability to mine the majority of the blocks, the attacking
@ -1590,7 +1590,7 @@ majority of the mining power.
//TODO: update to not use 51% attack name (see other TODO in this
//chapter)
Despite its ((("majority attacks", startref="majority-attack")))((("51% attacks", primary-sortas="fifty-one percent attacks", startref="attack-51")))((("double-spend attacks", startref="double-spend")))name, the 51% attack scenario doesn't actually require 51%
Despite its ((("majority attacks", startref="majority-attack")))((("51% attacks", startref="attack-51")))((("double-spend attacks", startref="double-spend")))name, the 51% attack scenario doesn't actually require 51%
of the hashing power. In fact, such an attack can be attempted with a
smaller percentage of the hashing power. The 51% threshold is simply the
level at which such an attack is almost guaranteed to succeed. A