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发表于 2008-5-29 23:19 · 北京
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下面是引用aim于2008-05-29 22:52发表的:
http://wiibrew.org/index.php?title=Ticket
To get the title key decrypt the 16 bytes at offset 0x1bf with the master key using the Title ID (offset 0x1dc) as the initialization vector (the last 8 bytes of the IV should be zero).
.......
应该就是这东西了,google了半天,原来AES-CBC加密涉及两个概念
主密码:master key
初始向量:initialization vector (IV)
现在我手头有了master key 和 IV ,也有了密文的title key ,如何解出title key 呢? (原理上已经是可解密了,只是不知道需要用什么工具或者代码来解开)
解出title key ,然后
initialization vector The files are located after the file table, with their starts aligned to a 64 byte boundary. To read a file, skip bytes until the next 64 byte boundary (unless already at one), read the File size bytes rounded to the next 16 bytes (the AES block size), decrypt using AES (using the title key and the IV in the file table entry plus 14 zero bytes), and take filesize bytes from the result to create the output file. The SHA-1 sum of this should match the one in the file table.
应该就可以解开.des文件的加密了吧
自己研究中 + 期待 加解密方面达人。
PS:为什么国际友人们没有发布解密.des文件的工具呢?很奇怪啊。。难道我完全猜错了,至今仍认为.des加密了的飘过· |
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