文本转二进制

#!/usr/bin/env python
import struct

infile = open("data","rb")
outfile = open("out.txt","wb")

def main():
buf=['','']
index=0
line = infile.read(1)
while line:
if line != '\n':
buf[index]=line
index=(index+1)%2
if(index%2==0):
#print ''.join(buf)
#B unsigned char integer 1Byte
outfile.write(struct.pack('B',int(''.join(buf),16)))
line =  infile.read(1)
if __name__ == '__main__':
main()

签名相关的：

http://tomeko.net/online_tools/hex_to_base64.php?lang=en

*.MF
> sha1sum [file list]

hex to base64

> upper url 

*.SF

> sha1sum [file list] + *.MF

> echo -e "Name: res/layout/dh.xml\r\nSHA1-Digest: 3lDf+KCveCkvviOq9eg5UR0FFRs=\r\n\r" | sha1sum

hex to base64

> upper url