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Author Topic: 求解惑,比特币的安全性  (Read 913 times)
wywoc
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October 29, 2013, 01:45:37 AM
 #1

刚看到一个地址https://blockchain.info/zh-cn/address/1111111111111111111114oLvT2
可以算出这么长,只差6位了,那运算力再强大岂不是可以算出其它地址的私钥了。如果那样,比特币还有什么价值?
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qzx881112
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October 29, 2013, 02:38:03 AM
 #2

从差六位到全部算出来还有很长的路

blake
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October 29, 2013, 02:41:05 AM
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这难度是指数级增长的

wywoc
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October 29, 2013, 02:52:17 AM
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到底有多长的路,如果一个大型研究机构要攻破一个地址也几乎不可能,那样才能让人放心啊
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October 29, 2013, 03:02:36 AM
 #5

能从比特币地址计算出相配对的私匙么?

不可能。比特币地址原理是基于EDSA即椭圆曲线加密算法的,由该算法可以有私匙算出公匙,但是不能由公匙反向计算出私匙。具体原理请点这里


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October 29, 2013, 03:13:00 AM
 #6

要是在能看到的将来就能暴力破解的话,我想没有这么多人(其中还有好多密码高手)玩这玩意儿了
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October 29, 2013, 04:00:16 AM
 #7

刚看到一个地址https://blockchain.info/zh-cn/address/1111111111111111111114oLvT2
可以算出这么长,只差6位了,那运算力再强大岂不是可以算出其它地址的私钥了。如果那样,比特币还有什么价值?

不是算出來的, 根本沒有人有這地址的private key. 如果可以算出這個來, 等於是把bitcoin破解了

另外最後那6位是檢查碼, 不能改變的


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fmtzhangli
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October 29, 2013, 05:48:59 AM
 #8

那个地址里的币没有任何人可以用
dukong
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October 30, 2013, 12:36:38 AM
 #9

刚看到一个地址https://blockchain.info/zh-cn/address/1111111111111111111114oLvT2
可以算出这么长,只差6位了,那运算力再强大岂不是可以算出其它地址的私钥了。如果那样,比特币还有什么价值?
也不一定是他设定了前面这么多位,碰巧出现也是有可能的。
比如他设定的时候是7个“1”开头的(这是短时间内可以算出的),刚好算出来的时候后面跟了更多的“1”,可能碰巧而已。

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November 01, 2013, 10:37:18 AM
 #10

这是一个无效的地址,发到这个地址的币就相当于被销毁了。
bitalk
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November 02, 2013, 12:30:48 AM
 #11

还是多关心点别的吧

getfreebtc
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November 02, 2013, 01:47:10 AM
 #12

放心,BTC还是很安全的
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