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本帖最后由 lgdhr2008 于 2018-12-21 10:46 编辑
The first hash is the md5 of the password used to "protect" the block diagram. The second is made from the first combined with the two blocks "LIBN", "LVSR" and since LV2012 a salt. The third hash is created from the second and the Block diagram "BDHc"-block 谁能看懂这个,帮忙解释一下,特别是第二个16位和第三个16位是如何生成的(这段话是解释labview密码保护机制的) |
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Password protection
Every .VI-File has the "BDPW"-Block that contains three 16-Byte binary md5 hashes. The first hash is the md5 of the password used to "protect" the block diagram. The second is made from the first combined with the two blocks "LIBN", "LVSR" and since LV2012 a salt. The third hash is created from the second and the Block diagram "BDHc"-block The salt is made from three 32-bit-integers. These numbers represent the count of the connections of the terminal by types (numbers, strings, paths) used by the vi file (see [Terminals / Connections]). |
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1 条评论
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有没有人知道怎么计算LIBN和LVSR啊
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