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122 lines
2.5 KiB
Python
122 lines
2.5 KiB
Python
from hashlib import md5
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import string
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from sys import argv
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def MDPrint(str):
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outstr = ''
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for o in str:
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outstr = (outstr
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+ string.hexdigits[(o >> 4) & 0xF]
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+ string.hexdigits[o & 0xF])
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print(outstr, end=' ')
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from time import time
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def makestr(start, end):
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result = ''
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for i in range(start, end + 1):
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result = result + chr(i)
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return result
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def MDTimeTrial():
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TEST_BLOCK_SIZE = 1000
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TEST_BLOCKS = 10000
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TEST_BYTES = TEST_BLOCK_SIZE * TEST_BLOCKS
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# initialize test data, need temporary string filler
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filsiz = 1 << 8
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filler = makestr(0, filsiz-1)
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data = filler * (TEST_BLOCK_SIZE // filsiz)
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data = data + filler[:(TEST_BLOCK_SIZE % filsiz)]
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del filsiz, filler
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# start timer
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print('MD5 time trial. Processing', TEST_BYTES, 'characters...')
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t1 = time()
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mdContext = md5()
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for i in range(TEST_BLOCKS):
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mdContext.update(data)
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str = mdContext.digest()
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t2 = time()
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MDPrint(str)
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print('is digest of test input.')
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print('Seconds to process test input:', t2 - t1)
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print('Characters processed per second:', TEST_BYTES / (t2 - t1))
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def MDString(str):
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MDPrint(md5(str.encode("utf-8")).digest())
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print('"' + str + '"')
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def MDFile(filename):
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f = open(filename, 'rb')
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mdContext = md5()
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while 1:
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data = f.read(1024)
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if not data:
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break
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mdContext.update(data)
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MDPrint(mdContext.digest())
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print(filename)
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import sys
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def MDFilter():
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mdContext = md5()
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while 1:
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data = sys.stdin.read(16)
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if not data:
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break
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mdContext.update(data)
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MDPrint(mdContext.digest())
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print()
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def MDTestSuite():
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print('MD5 test suite results:')
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MDString('')
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MDString('a')
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MDString('abc')
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MDString('message digest')
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MDString(makestr(ord('a'), ord('z')))
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MDString(makestr(ord('A'), ord('Z'))
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+ makestr(ord('a'), ord('z'))
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+ makestr(ord('0'), ord('9')))
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MDString((makestr(ord('1'), ord('9')) + '0') * 8)
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# Contents of file foo are "abc"
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MDFile('foo')
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# I don't wanna use getopt(), since I want to use the same i/f...
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def main():
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if len(argv) == 1:
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MDFilter()
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for arg in argv[1:]:
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if arg[:2] == '-s':
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MDString(arg[2:])
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elif arg == '-t':
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MDTimeTrial()
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elif arg == '-x':
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MDTestSuite()
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else:
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MDFile(arg)
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main()
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