+ j Rt^RIt^RIt^RIt]!]RR4t]Pt!RR] 4t !RR] 4t !RR4t ] !4t ] Pt] PtA .R OtR#) zQ Cryptographically secure random implementation, with fallback on normal random. N getrandbitsc]tRt^tRtRtR#)SecureRandomNotAvailablez< Exception raised when no secure random algorithm is found. N__name__ __module__ __qualname____firstlineno____doc____static_attributes__r:/usr/lib/python3/dist-packages/twisted/python/randbytes.pyrrr rc]tRt^tRtRtR#)SourceNotAvailablezI Internal exception used when a specific random source is not available. rNrrr rrrrr rca]tRt^toRtR t]tV3RlRltRV3RlRlltV3RlRlt ] Pt ] !RR4t V3R lR ltV3R lR ltR tVtR#) RandomFactoryz Factory providing L{secureRandom} and L{insecureRandom} methods. You shouldn't have to instantiate this class, use the module level functions instead: it is an implementation detail and could be removed or changed arbitrarily. c&<V^8dQhRS[RS[/#nbytesreturnintbytes)format __classdict__s"r __annotate__RandomFactory.__annotate__-s((((r c x\P!V4# \\3dp\ T4hRp?ii;i)z? Wrapper around C{os.urandom} that cleanly manage its absence. N)osurandomAttributeErrorNotImplementedErrorr)selfres&& r _osUrandomRandomFactory._osUrandom-s7 (::f% % 34 ($Q' ' (s9 49c,<V^8dQhRS[RS[RS[/#)rrfallbackr)rboolr)rrs"rrr6s'PP3P$P5Pr c VPV4# \dMi;iT'd/\P!R\^R7TP T4#\ R4h)a# Return a number of secure random bytes. @param nbytes: number of bytes to generate. @type nbytes: C{int} @param fallback: Whether the function should fallback on non-secure random or not. Default to C{False}. @type fallback: C{bool} @return: a string of random bytes. @rtype: C{str} zPurandom unavailable - proceeding with non-cryptographically secure random source)category stacklevelz!No secure random source available)r'rwarningswarnRuntimeWarninginsecureRandomr)r%rr*s&&&r secureRandomRandomFactory.secureRandom6sd ??6* *!     MMM'   &&v. .*+NO O  !!c&<V^8dQhRS[RS[/#rr)rrs"rrrSsHHHHr c VPe;VPV^,4pRV^,,V,p\V4#\R4h)z# Wrapper around C{os.getrandbits}. z%%0%dxz#random.getrandbits is not available)r_fromhexr)r%rnhexBytess&& r _randBitsRandomFactory._randBitsSsN    '  !,A FQJ/14HH% % !FGGr r c&<V^8dQhRS[RS[/#rr)rrs"rrr`sVV#V%Vr c  RP\V4Uu.uF-p\\P!VP 4.4NK/ up4#uupi)z& Wrapper around the C{random} module. r )joinrangerrandomchoice_BYTES)r%ris&& r _randModuleRandomFactory._randModule`s>xxeFmTm dkk :;>&) )!   ''r5rN)F)rrr r r randomSourcesrr'r3r;r maketrans _maketransrCrEr2r __classdictcell__)rs@rrrseMK((PP:HHJ S !FVV ((r r)r3r2r)r r!rAr/getattrrrfromhexr8 RuntimeErrorrrrfactoryr3r2__all__rr rrSs{   fmT2 ==|  U(U(p /## ''  Ir