Docs: correct hashlib.blake2 keyed hashing example (bpo-31560)
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@ -510,15 +510,19 @@ to users and later verify them to make sure they weren't tampered with::
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... h.update(cookie)
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... return h.hexdigest().encode('utf-8')
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>>>
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>>> cookie = b'user:vatrogasac'
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>>> def verify(cookie, sig):
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... good_sig = sign(cookie)
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... return compare_digest(good_sig, sig)
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>>>
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>>> cookie = b'user-alice'
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>>> sig = sign(cookie)
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>>> print("{0},{1}".format(cookie.decode('utf-8'), sig))
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user:vatrogasac,349cf904533767ed2d755279a8df84d0
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>>> compare_digest(cookie, sig)
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user-alice,b'43b3c982cf697e0c5ab22172d1ca7421'
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>>> verify(cookie, sig)
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True
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>>> compare_digest(b'user:policajac', sig)
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>>> verify(b'user-bob', sig)
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False
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>>> compare_digest(cookie, b'0102030405060708090a0b0c0d0e0f00')
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>>> verify(cookie, b'0102030405060708090a0b0c0d0e0f00')
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False
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Even though there's a native keyed hashing mode, BLAKE2 can, of course, be used
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@ -130,9 +130,6 @@ library/exceptions,,:err,err.object[err.start:err.end]
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library/functions,,:step,a[start:stop:step]
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library/functions,,:stop,"a[start:stop, i]"
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library/functions,,:stop,a[start:stop:step]
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library/hashlib,,:vatrogasac,>>> cookie = b'user:vatrogasac'
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library/hashlib,,:vatrogasac,"user:vatrogasac,349cf904533767ed2d755279a8df84d0"
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library/hashlib,,:policajac,">>> compare_digest(b'user:policajac', sig)"
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library/hashlib,,:LEAF,"h00 = blake2b(buf[0:LEAF_SIZE], fanout=FANOUT, depth=DEPTH,"
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library/http.client,,:port,host:port
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library/http.cookies,,`,!#$%&'*+-.^_`|~:
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