/rev/be9c8eb7b4d0
changeset: 1245:be9c8eb7b4d0
user: Marcel Keller <[email protected]>
date: Fri Sep 11 19:11:31 2009 +0200
summary: Added option to use preprocessing.
diffstat:
apps/aes.py | 53 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 52 insertions(+), 1 deletions(-)
diffs (90 lines):
diff -r f29e998c77c9 -r be9c8eb7b4d0 apps/aes.py
--- a/apps/aes.py Fri Sep 11 19:09:31 2009 +0200
+++ b/apps/aes.py Fri Sep 11 19:11:31 2009 +0200
@@ -22,6 +22,7 @@
import time
from optparse import OptionParser
+from pprint import pformat
import viff.reactor
viff.reactor.install()
@@ -57,6 +58,8 @@
parser.set_defaults(count=1)
parser.add_option("-a", "--active", action="store_true", help="Use actively "
"secure runtime. Default is only passive security.")
+parser.add_option("-p", "--preproc", action="store_true", help="Use "
+ "preprocessing. Default is no preprocessing.")
# Add standard VIFF options.
Runtime.add_options(parser)
@@ -85,6 +88,19 @@
def fin(ciphertext):
print "Finished after %f sec." % (time.time() - start)
print "Ciphertext:", [hex(c.value) for c in ciphertext]
+
+ if rt._needed_data and options.preproc:
+ print "Missing pre-processed data:"
+ for (func, args), pcs in rt._needed_data.iteritems():
+ print "* %s%s:" % (func, args)
+ print " " + pformat(pcs).replace("\n", "\n ")
+
+ if rt._pool:
+ print "Unused pre-processed data:"
+ pcs = rt._pool.keys()
+ pcs.sort()
+ print " " + pformat(pcs).replace("\n", "\n ")
+
rt.shutdown()
g = gather_shares(opened_ciphertext)
@@ -103,6 +119,37 @@
s = rt.synchronize()
rt.schedule_complex_callback(s, encrypt, rt, key)
+def preprocess(rt):
+ if options.active:
+ start = time.time()
+
+ if options.exponentiation is False:
+ max = 301
+ js = [3 + i * 15 + j for i in range(20) for j in range(7) + [8]]
+ elif options.exponentiation == 0:
+ max = 321
+ js = [2 + i * 16 + j for i in range(20) for j in range(13)]
+ elif options.exponentiation == 1 or options.exponentiation == 2:
+ max = 261
+ js = [1 + i * 13 + j for i in range(20) for j in range(11)]
+ elif options.exponentiation == 3:
+ max = 301
+ js = [1 + i * 15 + j for i in range(20) for j in range(13)]
+
+ pcs = [(2, 18, k) + (max,) * i + (j, 1, 0)
+ for k in range(1, options.count + 1)
+ for i in range(10)
+ for j in js]
+
+ preproc = rt.preprocess({("generate_triples", (GF256,)): pcs})
+
+ def fin(_):
+ print "Finished preprocessing after %f sec." % (time.time() -
start)
+ return rt
+
+ preproc.addCallback(fin)
+ rt.schedule_complex_callback(preproc, share_key)
+
if options.active:
from viff.active import ActiveRuntime
runtime_class = ActiveRuntime
@@ -111,6 +158,10 @@
runtime_class = PassiveRuntime
rt = create_runtime(id, players, 1, options, runtime_class)
-rt.addCallback(share_key)
+
+if options.preproc:
+ rt.addCallback(preprocess)
+else:
+ rt.addCallback(share_key)
reactor.run()
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