- Code cleanup.
- Removed the need for local temp files.
This commit is contained in:
ccremers
parent
470da10745
commit
eec5057460
@ -4,24 +4,6 @@
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#
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# (c)2004 Cas Cremers
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#
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# Input of this script:
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#
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# - A number on the commandline of stuff to test
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# - A list of files on stdin to be used (lines starting with '#' are
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# ignored)
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#
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#
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# Tips and tricks:
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#
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# Use e.g.
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# $ ulimit -v 100000
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# to counteract memory problems
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#
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# If you know where to look, use
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# $ ls s*.spdl t*.spdl -1 | ./multiprotocoltest.py 2
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# To verify combos of protocols starting with s and t
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#
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# ***********************
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# MODULES
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# ***********************
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@ -31,9 +13,9 @@ import sys
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import string
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import commands
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import copy
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from tempfile import NamedTemporaryFile
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from optparse import OptionParser
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# My own stuff
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import tuplesdo
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import scythertest
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import protocollist
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@ -43,28 +25,12 @@ import protocollist
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# PARAMETERS
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# ***********************
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# Temporary files
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TempFileList = "scyther-blap.tmp"
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TempFileTuples = "scyther-blip.tmp"
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# External programs
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TupleProgram = "./tuples.py"
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# Some default settings for Agents, untrusted e with sk(e) and k(a,e) etc.
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ScytherDefaults = "--summary"
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IncludeProtocols = '../spdl/spdl-defaults.inc'
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# Some protocols are causing troubles: this is a hard-coded filter to exclude
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# the problem children. Unfair, yes. Practical, yes.
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#SkipList = [ 'gong-nonce.spdl', 'gong-nonce-b.spdl', 'splice-as-hc.spdl', 'kaochow-palm.spdl' ]
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SkipList = []
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ClaimToResultMap = {} # maps protocol claims to correctness in singular tests (0,1)
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ProtocolToFileMap = {} # maps protocol names to file names
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ProtocolToStatusMap = {} # maps protocol names to status: 0 all false, 1 all correct, otherwise (2) mixed
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ProtocolToEffectsMap = {} # maps protocols that help create multiple flaws, to the protocol names of the flaws they caused
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CommandPrefix = "not yet initialised."
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CommandPrefix = ""
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ArgumentsList = [] # argument lists that have been displayed onscreen
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# Ugly hack. Works.
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@ -122,6 +88,8 @@ def PrintProtStatus (file, prname):
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# Returns a dictionary of claim -> bool; where 1 means that it is
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# correct, and 0 means that it is false (i.e. there exists an attack)
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def ScytherEval (plist):
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global options
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# Flush before trying (possibly fatal) external commands
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sys.stdout.flush()
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sys.stderr.flush()
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@ -173,6 +141,8 @@ LastProgress = {}
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ProgressBarWidth = 50
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def ShowProgress (i,n,txt):
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global options
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def IntegerPart (x):
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return int (( x * i ) / n)
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@ -181,13 +151,13 @@ def ShowProgress (i,n,txt):
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percentage = IntegerPart (100)
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factor = IntegerPart (ProgressBarWidth)
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showme = 0
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showme = False
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if LastProgress.has_key(n):
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if LastProgress[n]<>(factor,txt):
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showme = 1
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showme = True
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else:
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showme = 1
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if showme == 1:
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showme = True
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if showme:
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bar = "\r["
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i = 0
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while i < ProgressBarWidth:
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@ -202,6 +172,8 @@ def ShowProgress (i,n,txt):
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LastProgress[n] = (factor, txt)
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def ClearProgress (n,txt):
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global options
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if not options.progressbar:
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return
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bar = " " * (1 + ProgressBarWidth + 2 + 5 + len(txt))
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@ -279,7 +251,7 @@ def DescribeContext (filep, protocols, claim):
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# the protocol of the claim. However, if the
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# partner protocol is completely correct or
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# completely false, we summarize.
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summary = 0
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summary = False
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all = 0
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if claim.split()[0] <> prname:
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count = [0,0]
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@ -287,12 +259,12 @@ def DescribeContext (filep, protocols, claim):
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count[v] = count[v]+1
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if count[0] == 0 and count[1] > 0:
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all = 1
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summary = 1
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summary = True
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if count[1] == 0 and count[0] > 0:
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all = 0
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summary = 1
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summary = True
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if summary == 1:
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if summary:
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DC_Claim (cl.split()[0] + " *ALL*", all)
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else:
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for cl,v in cllist:
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@ -315,7 +287,7 @@ def RequiresAllProtocols (protocols, claim):
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# claim was always false
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return 0
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# check for simple cases
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if int(TupleWidth) <= 2:
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if TupleWidth <= 2:
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# nothing to remove
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return 1
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@ -387,147 +359,138 @@ def SignalAttack (protocols, claim):
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#
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# Furthermore, TempFileList is created.
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parser = OptionParser()
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scythertest.default_options(parser)
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parser.add_option("-t","--tuplewidth", dest="tuplewidth",
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default = 2,
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help = "number of concurrent protocols to test, >=2")
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parser.add_option("-p","--protocols", dest="protocols",
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default = 0,
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help = "protocol selection (0: all, 1:literature only)")
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parser.add_option("-s","--start", dest="startpercentage",
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default = 0,
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help = "start test at a certain percentage")
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parser.add_option("-B","--disable-progressbar", dest="progressbar",
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default = "True",
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action = "store_false",
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help = "suppress a progress bar")
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def main():
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global options
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global processed, newattacks, StartSkip
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global TupleWidth, TupleCount
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(options, args) = parser.parse_args()
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parser = OptionParser()
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scythertest.default_options(parser)
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parser.add_option("-t","--tuplewidth", dest="tuplewidth",
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default = 2,
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help = "number of concurrent protocols to test, >=2")
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parser.add_option("-p","--protocols", dest="protocols",
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default = 0,
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help = "protocol selection (0: all, 1:literature only)")
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parser.add_option("-s","--start", dest="startpercentage",
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default = 0,
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help = "start test at a certain percentage")
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parser.add_option("-B","--disable-progressbar", dest="progressbar",
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default = "True",
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action = "store_false",
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help = "suppress a progress bar")
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# Where should we start (if this is a number)
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StartPercentage = int (options.startpercentage)
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if StartPercentage < 0 or StartPercentage > 100:
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print "Illegal range for starting percentage (0-100):", StartPercentage
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sys.exit()
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(options, args) = parser.parse_args()
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# Send protocollist to temp file (is this necessary?)
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ProtocolFileList = protocollist.select(options.protocols)
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ProtocolCount = len(ProtocolFileList)
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outp = open(TempFileList, 'w')
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for l in ProtocolFileList:
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outp.write(l + "\n")
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outp.close()
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# Where should we start (if this is a number)
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StartPercentage = int (options.startpercentage)
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if StartPercentage < 0 or StartPercentage > 100:
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print "Illegal range for starting percentage (0-100):", StartPercentage
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sys.exit()
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# Determine arguments
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TupleWidth = str(options.tuplewidth)
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# Send protocollist to temp file (is this necessary?)
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ProtocolFileList = protocollist.select(options.protocols)
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ProtocolCount = len(ProtocolFileList)
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# Match
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ScytherMethods = "--match=" + str(options.match)
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# Determine arguments
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TupleWidth = int(options.tuplewidth)
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# Method of bounding will be determined in ScytherEval
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# Match
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ScytherMethods = "--match=" + str(options.match)
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# Caching of single-protocol results for speed gain.
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#----------------------------------------------------------------------
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#
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# The script first computes the singular results for all the protocols
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# and stores this in an array, or something like that.
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# Method of bounding will be determined in ScytherEval
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print "Evaluating tuples of", TupleWidth, "for", ProtocolCount, "protocols, using the command '" + CommandPrefix + "'"
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i = 0
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while i < ProtocolCount:
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ShowProgress (i, ProtocolCount,ProtocolFileList[i]+safetxt)
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ScytherEval1 ( ProtocolFileList[i] )
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i = i + 1
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ClearProgress(ProtocolCount, safetxt)
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print "Evaluated single results."
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# Caching of single-protocol results for speed gain.
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#----------------------------------------------------------------------
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#
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# The script first computes the singular results for all the protocols
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# and stores this in an array, or something like that.
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# Show classification
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#----------------------------------------------------------------------
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#
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print "Correct protocols: ", GetKeys (ProtocolToStatusMap, 1)
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print "Partly flawed protocols: ", GetKeys (ProtocolToStatusMap, 2)
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print "Completely flawed protocols: ", GetKeys (ProtocolToStatusMap, 0)
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TupleCount = tuplesdo.tuples_count(ProtocolCount, TupleWidth)
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print "Evaluating", TupleCount, "tuples of", TupleWidth, "for", ProtocolCount, "protocols."
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i = 0
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while i < ProtocolCount:
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ShowProgress (i, ProtocolCount,ProtocolFileList[i]+safetxt)
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ScytherEval1 ( ProtocolFileList[i] )
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i = i + 1
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ClearProgress(ProtocolCount, safetxt)
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print "Evaluated single results."
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# Computation of combined list.
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#----------------------------------------------------------------------
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#
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# We use the tuple script to generate the list of tuples we need.
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# We use a temporary file (again) to store that list.
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# This requires that 'tuples.py' is in the same directory.
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# Show classification
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#----------------------------------------------------------------------
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#
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print "Correct protocols: ", GetKeys (ProtocolToStatusMap, 1)
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print "Partly flawed protocols: ", GetKeys (ProtocolToStatusMap, 2)
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print "Completely flawed protocols: ", GetKeys (ProtocolToStatusMap, 0)
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lstatus=os.system(TupleProgram + ' ' + TupleWidth + ' <' + TempFileList + ' >' + TempFileTuples)
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# Testing of protocol tuples
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#----------------------------------------------------------------------
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#
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# We take the list of tuples and test each combination.
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inp = open(TempFileTuples, 'r')
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TupleCount = 0
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for x in inp:
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TupleCount = TupleCount + 1
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inp.close()
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print "Commencing test for", TupleCount, "protocol combinations."
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processed = 0
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newattacks = 0
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StartSkip = 0
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# Testing of protocol tuples
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#----------------------------------------------------------------------
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#
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# We take the list of tuples and test each combination.
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# Possibly skip some
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if StartPercentage > 0:
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StartSkip = int ((TupleCount * StartPercentage) / 100)
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print "Resuming. Skipping the first", StartSkip,"tuples."
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inp = open(TempFileTuples, 'r')
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processed = 0
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newattacks = 0
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StartSkip = 0
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#
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# Check all these protocols
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#
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def process(protocols):
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global processed, newattacks, StartSkip
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# Possibly skip some
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if StartPercentage > 0:
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StartSkip = int ((TupleCount * StartPercentage) / 100)
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print "Resuming. Skipping the first", StartSkip,"tuples."
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#
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# Check all these protocols
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#
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for tline in inp:
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if (processed >= StartSkip):
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#
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# Get the next tuple
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#
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protocols = tline.split()
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ShowProgress (processed, TupleCount, " ".join(protocols) + safetxt)
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#
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# Determine whether there are valid claims at all in
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# this set of file names
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#
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has_valid_claims = 0
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for prname in GetListKeys (ProtocolToFileMap, protocols):
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if ProtocolToStatusMap[prname] != 0:
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has_valid_claims = 1
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if has_valid_claims == 1:
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if (processed >= StartSkip):
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#
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# Use Scyther to verify the claims
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# Get the next tuple
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#
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results = ScytherEval ( protocols )
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ShowProgress (processed, TupleCount, " ".join(protocols) + safetxt)
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#
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# Now we have the results for this combination.
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# Check whether any of these claims is 'newly false'
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# Determine whether there are valid claims at all in
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# this set of file names
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#
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for claim,value in results.items():
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if value == 0:
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# Apparently this claim is false now (there is
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# an attack)
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newattacks = newattacks + SignalAttack (protocols, claim)
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has_valid_claims = False
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for prname in GetListKeys (ProtocolToFileMap, protocols):
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if ProtocolToStatusMap[prname] != 0:
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has_valid_claims = True
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if has_valid_claims:
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#
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# Use Scyther to verify the claims
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#
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results = ScytherEval ( protocols )
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#
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# Now we have the results for this combination.
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# Check whether any of these claims is 'newly false'
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#
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for claim,value in results.items():
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if value == 0:
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# Apparently this claim is false now (there is
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# an attack)
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newattacks = newattacks + SignalAttack (protocols, claim)
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# Next!
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processed = processed + 1
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inp.close()
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# Next!
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processed = processed + 1
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ClearProgress (TupleCount, safetxt)
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print "Processed", processed,"tuple combinations in total."
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if StartSkip > 0:
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print "In this session, checked the last",(processed - StartSkip),"tuples. "
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print "Found", newattacks, "new attacks."
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if newattacks > 0:
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print " These were helped by:"
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for helper in ProtocolToEffectsMap.keys():
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sys.stdout.write (" ")
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PrintProtStatus (sys.stdout, helper)
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sys.stdout.write (". This possibly breaks " + str(ProtocolToEffectsMap[helper]) + "\n")
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tuplesdo.tuples_do(process,ProtocolFileList,TupleWidth)
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sys.stdout.flush()
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sys.stderr.flush()
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ClearProgress (TupleCount, safetxt)
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print "Processed", processed,"tuple combinations in total."
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if StartSkip > 0:
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print "In this session, checked the last",(processed - StartSkip),"tuples. "
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print "Found", newattacks, "new attacks."
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if newattacks > 0:
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print " These were helped by:"
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for helper in ProtocolToEffectsMap.keys():
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sys.stdout.write (" ")
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PrintProtStatus (sys.stdout, helper)
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sys.stdout.write (". This possibly breaks " + str(ProtocolToEffectsMap[helper]) + "\n")
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sys.stdout.flush()
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sys.stderr.flush()
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if __name__ == '__main__':
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main()
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@ -1,21 +0,0 @@
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# Tuple module
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#
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# tuplesDo generates all unordered sets (in a list) of size n of the
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# elements of the list l. The resulting lists (of length n) are passed
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# to the function f.
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def tuplesDo (f,l,n):
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def tuplesDoRecurse (l,r):
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if r and (len(r) == n):
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f(r)
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else:
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if l and (n > 0):
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# Larger size: we have options
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# Option 1: include first
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tuplesDoRecurse (l[1:], r + [l[0]])
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# Option 2: exclude first
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tuplesDoRecurse (l[1:], r)
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tuplesDoRecurse (l,[])
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@ -1,51 +0,0 @@
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#!/usr/bin/python
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#
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# Given a number of input lines on std and an argument int, this program
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# generates unordered tuples, e.g.:
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#
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# arg: 2
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# in: a
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# b
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# c
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# d
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#
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# out: a,b
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# a,c
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# a,d
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# b,c
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# b,d
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# c,d
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#
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# This should make it clear what happens.
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#
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import sys
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import string
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import tuplesdo
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# Retrieve the tuple width
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tuplesize = int(sys.argv[1])
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# Read stdin into list and count
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list = []
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loop = 1
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while loop:
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line = sys.stdin.readline()
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if line != '':
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# not the end of the input
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line = string.strip(line)
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if line != '':
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# not a blank line
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list.append(line)
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else:
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# end of the input
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loop = 0
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def tuplesPrint (l, n):
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def f (resultlist):
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print " ".join(resultlist)
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tuplesdo.tuplesDo (f, l, n)
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# Generate tuples...
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tuplesPrint (list, tuplesize)
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# Thanks for your attention
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@ -4,18 +4,41 @@
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# elements of the list l. The resulting lists (of length n) are passed
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# to the function f.
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def tuplesDo (f,l,n):
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def tuplesDoRecurse (l,r):
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# First some generic combinatorial stuff
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def faculty_gen(n,k):
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if n <= k:
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return 1
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else:
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return n * faculty_gen(n-1,k)
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def faculty(n):
|
||||
return faculty_gen(n,1)
|
||||
|
||||
def binomial(n,k):
|
||||
b1 = faculty_gen(n,k)
|
||||
b2 = faculty(n-k)
|
||||
return b1/b2
|
||||
|
||||
|
||||
# How many elements will there be?
|
||||
def tuples_count (l,n):
|
||||
return binomial(l,n)
|
||||
|
||||
# Generate those elements, and apply f
|
||||
def tuples_do (f,l,n):
|
||||
def recurse (l,r):
|
||||
if r and (len(r) == n):
|
||||
f(r)
|
||||
else:
|
||||
if l and (n > 0):
|
||||
# Larger size: we have options
|
||||
# Option 1: include first
|
||||
tuplesDoRecurse (l[1:], r + [l[0]])
|
||||
recurse (l[1:], r + [l[0]])
|
||||
# Option 2: exclude first
|
||||
tuplesDoRecurse (l[1:], r)
|
||||
recurse (l[1:], r)
|
||||
|
||||
tuplesDoRecurse (l,[])
|
||||
recurse (l,[])
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user