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#!/usr/bin/env python2
import binascii
import hashlib
import sha3
def main():
hash_funcs = [
('SHA-1', hashlib.sha1),
('SHA-224', hashlib.sha224),
('SHA-256', hashlib.sha256),
('SHA-384', hashlib.sha384),
('SHA-512', hashlib.sha512)]
for (sha_type, sha_func) in hash_funcs:
digest = sha_func('abc').digest()
# Only loop 4 times since an iteration was done above
for x in xrange(0, 4):
digest = sha_func(digest).digest()
print('{} with 5 Rounds: {}'.format(sha_type, digest.encode('hex')))
# Loop another 5 times to get to 10
for x in xrange(0, 5):
digest = sha_func(digest).digest()
print('{} with 10 Rounds: {}'.format(sha_type, digest.encode('hex')))
# SHA3 is handled differently as it's not in hashlib.
# Use the SHA3 creators' version
hash3_funcs = [
('SHA3-224', sha3.SHA3_224),
('SHA3-256', sha3.SHA3_256),
('SHA3-384', sha3.SHA3_384),
('SHA3-512', sha3.SHA3_512)]
for (sha_type, sha_func) in hash3_funcs:
digest = sha_func([ord(c) for c in 'abc'])
# Only loop 4 times since an iteration was done above
for x in xrange(0, 4):
digest = sha_func(digest)
print('{} with 5 Rounds: {}'.format(sha_type, binascii.hexlify(digest)))
# Loop another 5 times to get to 10
for x in xrange(0, 5):
digest = sha_func(digest)
print('{} with 10 Rounds: {}'.format(sha_type, binascii.hexlify(digest)))
hash3_funcs = [
('SHAKE128', sha3.SHAKE128),
('SHAKE256', sha3.SHAKE256)]
for (sha_type, sha_func) in hash3_funcs:
digest = sha_func([ord(c) for c in 'abc'], 31)
# Only loop 4 times since an iteration was done above
for x in xrange(0, 4):
digest = sha_func(digest, 31)
print('{} with 5 Rounds: {}'.format(sha_type, binascii.hexlify(digest)))
# Loop another 5 times to get to 10
for x in xrange(0, 5):
digest = sha_func(digest, 31)
print('{} with 10 Rounds: {}'.format(sha_type, binascii.hexlify(digest)))
if ('__main__' == __name__):
main()
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