# Copyright 2014 Chris Kuethe
import StringIO
from pysssslib import s4_encode, s4_decode
inputstr = StringIO.StringIO("secret12345")
num_shares = 5
num_needed = 3
exitcode = 0
# try this with 0 and 1 incorrect fragments...
for num_bad in range(2):
shares = []
for i in xrange(num_shares):
shares.append(StringIO.StringIO())
s4_encode(inputstr,shares,num_needed)
# construct an incorrect fragment by reversing the first fragment
if num_bad:
wrong = shares[0].getvalue().encode('hex')
wrong = wrong[::-1]
wrong = wrong.decode('hex')
shares.append(StringIO.StringIO())
shares[-1].write(wrong)
# test all-fragments (5), over-determined (4), sufficient (3), insufficient (2)
while True:
i = len(shares)
if ((i - num_bad) < (num_needed - 1)):
break
#
# -*- coding: utf-8 -*-
from pysssslib import s4_encode, s4_decode
if __name__ == "__main__":
import StringIO
input = StringIO.StringIO("Too many secrets, Marty!")
outputs = []
n = 10
k = 4
for i in xrange(n):
outputs.append(StringIO.StringIO())
s4_encode(input, outputs, k)
print "output shares %d-of-%d" % (k, n)
for i in xrange(n):
print str(i) + ": " + outputs[i].getvalue().encode("hex")
print ""
print "randomly selecting %d shares" % k
import random
inputs = []
randIndex = random.sample(range(n), k)
for i in randIndex:
f = outputs[i]
s = f.getvalue().encode("hex")
print str(i) + ": " + s
# limitations under the License.
#
# -*- coding: utf-8 -*-
from pysssslib import s4_encode, s4_decode
if __name__ == "__main__":
import StringIO
input = StringIO.StringIO("Too many secrets, Marty!")
outputs = []
n = 10
k = 4
for i in xrange(n):
outputs.append(StringIO.StringIO())
s4_encode(input,outputs,k)
print "output shares %d-of-%d" % (k, n)
for i in xrange(n):
print str(i)+": "+outputs[i].getvalue().encode('hex')
print ""
print "randomly selecting %d shares" % k
import random
inputs = []
randIndex = random.sample(range(n), k)
for i in randIndex:
f = outputs[i]
s = f.getvalue().encode('hex')
print str(i)+": "+s
inputs.append(f)