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hash.py
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hash.py
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#coding: utf8
import hashlib, os
import binascii
import base64
base64._b85alphabet = b'0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!#$%&()*+-;<=>?@^_`{|}~'
def base85encode(str, coding = 'utf8'):
if type(str)==type('ss'):
a = str.encode(coding)
return base64.b85encode(a).decode(coding)
def base85decode(str, coding = 'utf8'):
if type(str)==type('ss'):
a = str.encode(coding)
return base64.b85decode(a).decode(coding)
def md5(str):
return hashlib.md5(str).hexdigest().upper()
def md5_file(filename):
if os.path.exists(filename) and os.path.isfile(filename):
hash_new = hashlib.md5() #或hashlib.md5()
with open(filename,'rb') as fp: #打开文件，一定要以二进制打开
while True:
data = fp.read(4096*256) #读取文件块
if not data: #直到读完文件
break
hash_new.update(data)
hash_value = hash_new.hexdigest() #生成40位(sha1)或32位(md5)的十六进制字符串
return hash_value
else:
raise Exception("not exist this file : %s." % filename)
def crc32(str):
return '%08X' % (binascii.crc32(str) & 0xffffffff)
def sha1(str):
hash_new = hashlib.sha1() #或hashlib.md5()
hash_new.update(str)
hash_value = hash_new.hexdigest() #生成40位(sha1)或32位(md5)的十六进制字符串
return hash_value
def sha1_file(filename):
hash_new = hashlib.sha1() #或hashlib.md5()
#FIXME: 整理并封装成安装包
with open(filename,'rb') as fp: #打开文件，一定要以二进制打开
while True:
data = fp.read(4096*256) #读取文件块
if not data: #直到读完文件
break
hash_new.update(data)
hash_value = hash_new.hexdigest() #生成40位(sha1)或32位(md5)的十六进制字符串
return hash_value
def sha256(str):
hash_new = hashlib.sha256() #或hashlib.md5()
hash_new.update(str)
hash_value = hash_new.hexdigest() #生成40位(sha1)或32位(md5)的十六进制字符串
return hash_value
def sha256_file(filename):
hash_new = hashlib.sha256() #或hashlib.md5()
with open(filename,'rb') as fp: #打开文件，一定要以二进制打开
while True:
data = fp.read(4096*256) #读取文件块
if not data: #直到读完文件
break
hash_new.update(data)
hash_value = hash_new.hexdigest() #生成40位(sha1)或32位(md5)的十六进制字符串
return hash_value
if __name__ == "__main__":
path = u"D:\\迅雷下载\\CentOS-7.0-1406-x86_64-livecd.iso"
# print len(open(path, 'rb').read())
# print md5(open(path, 'rb').read())
# print(md5_file(path))
# print crc32(open(path, 'rb').read())
# print sha1(open(path, 'rb').read())
# print sha1_file(path)
a = base85encode('abcdefghijklmnopqrstuvwxyz')
# abcdefghijkkmnopqrstuvwxyz
print(a)
b = base85decode(a)
print(b)