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 密码学领域重大发现：山东大学王小云教授成功破解MD5(ZT) |
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不是这个专业的，不清楚这个发现的具体内容，好像她可以找到与原信息有相同MD5 hash 值的另一个信息文件，但是 -- valley - (218 Byte) 2004-9-08 周三, 09:31 (697 reads) |
Hoobastank
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作者：游客 在 海归商务 发贴, 来自【海归网】 http://www.haiguinet.com
what she has done:
given A, hash value H(A)=C, she could find B, which H(A)=H(B). however, she couldn’t get A or B if she only knew hash value C. what the meant is that collision exists which is not a surprise to me. if you try data set large enough, it would find collision. sure, she found a better way to find collision than others.
normally MD5 is to verify data integrity, such as password. attacker could forge B value to pass verification with same hash value as A, therefor, it would take over the box. I mentioned that SHA-0 is broken, it would really catch my eyes if SHA-1 is cracked.
作者：游客 在 海归商务 发贴, 来自【海归网】 http://www.haiguinet.com
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