forked from LBRYCommunity/lbry-sdk
51 lines
841 B
Python
51 lines
841 B
Python
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import hashlib
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import hmac
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def sha256(x):
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return hashlib.sha256(x).digest()
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def sha512(x):
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return hashlib.sha512(x).digest()
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def ripemd160(x):
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h = hashlib.new('ripemd160')
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h.update(x)
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return h.digest()
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def Hash(x):
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if type(x) is unicode:
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x = x.encode('utf-8')
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return sha256(sha256(x))
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def PoWHash(x):
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if type(x) is unicode:
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x = x.encode('utf-8')
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r = sha512(Hash(x))
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r1 = ripemd160(r[:len(r) / 2])
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r2 = ripemd160(r[len(r) / 2:])
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r3 = Hash(r1 + r2)
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return r3
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def hash_encode(x):
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return x[::-1].encode('hex')
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def hash_decode(x):
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return x.decode('hex')[::-1]
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def hmac_sha_512(x, y):
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return hmac.new(x, y, hashlib.sha512).digest()
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def hash_160(public_key):
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md = hashlib.new('ripemd160')
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md.update(sha256(public_key))
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return md.digest()
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