50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
# random.py
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#
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# Copyright (C) 2006-2016 wolfSSL Inc.
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#
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# This file is part of wolfSSL. (formerly known as CyaSSL)
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#
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# wolfSSL is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# wolfSSL is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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from wolfcrypt._random import ffi
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from wolfcrypt._random import lib
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class Random(object):
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def __init__(self):
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self.native_object = ffi.new("WC_RNG *")
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if lib.wc_InitRng(self.native_object) != 0:
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self.native_object = None
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def __del__(self):
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if self.native_object:
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lib.wc_FreeRng(self.native_object)
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def byte(self):
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ret = "\0"
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lib.wc_RNG_GenerateByte(self.native_object, ret)
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return ret
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def bytes(self, length):
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ret = "\0" * length
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lib.wc_RNG_GenerateBlock(self.native_object, ret, length)
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return ret
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