34 lines
1.1 KiB
Python
34 lines
1.1 KiB
Python
# Copyright 2018 AT&T Intellectual Property. All other rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import random
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import string
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__all__ = ['CryptoString']
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class CryptoString(object):
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def __init__(self):
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punctuation = '@#&-+=?'
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self._pool = string.ascii_letters + string.digits + punctuation
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self._random = random.SystemRandom()
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def get_crypto_string(self, length=24):
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"""
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Create and return a random cryptographic string of length ``length``.
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"""
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return ''.join(self._random.choice(self._pool)
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for _ in range(max(24, length)))
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