我一直在尝试在Erlang中解析torrent文件，到目前为止，我能够提取所有的一般信息，如torrent名称、文件（长度、路径、名称）、跟踪器链接。。。
The only thing that is bothering me is the sha1 hash value. I checked many websites online and according to the specification the "info" dictionary is what needs to be hashed. However, I m still confused by the delimiters. Should d and e be included or not?
最后，我认为如何从文件中读取数据很重要，现在我将文件读取为二进制文件，然后在解析数据之前将其转换为列表。如果生成哈希，这是否会更改/损坏哈希？是否有合适的数据类型（二进制/列表）能够正确提取信息字典。
提前谢谢。
信息字典中的所有内容都应该散列，包括第一个和最后一个字符；d和e。
I´m not sure I understood exactly what you want, but i´m not an torrent file expert. For getting the SHA1 from a binary: http://www.erlang.org/doc/man/crypto.html
if you need SHA2: http://steve.vinoski.net/code/sha2.html
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