def test_nonTransitiveConvert(self):
self.addMember()
sig1 = groupsig.sign(b"Hello, World1!", self.memkeys[0], self.grpkey)
sig2 = groupsig.sign(b"Hello, World2!", self.memkeys[0], self.grpkey)
b = groupsig.verify(sig1, b"Hello, World1!", self.grpkey)
self.assertTrue(b)
b = groupsig.verify(sig2, b"Hello, World2!", self.grpkey)
self.assertTrue(b)
bkey = bldkey.bldkey_random(self.code, self.grpkey)
out = groupsig.blind(self.grpkey, sig1, "Hello, World1!", bkey)
bsig1 = out["bsig"]
out = groupsig.blind(self.grpkey, sig2, "Hello, World2!", bkey)
bsig2 = out["bsig"]
bkey_pub = bldkey.bldkey_import(constants.GL19_CODE,
bldkey.bldkey_export_pub(bkey))
csigs1 = groupsig.convert([bsig1],
self.grpkey,
bkey_pub,
mgrkey=self.cnvkey)
csigs2 = groupsig.convert([bsig2],
self.grpkey,
bkey_pub,
mgrkey=self.cnvkey)
nym1 = groupsig.unblind(csigs1[0], bkey)
nym2 = groupsig.unblind(csigs2[0], bkey)
self.assertNotEqual(nym1['nym'], nym2['nym'])
def setUp(self):
groupsig.init(constants.GL19_CODE, 0)
group1 = groupsig.setup(constants.GL19_CODE)
self.code = constants.GL19_CODE
grpkey1 = group1['grpkey']
self.isskey = group1['mgrkey']
group2 = groupsig.setup(constants.GL19_CODE, grpkey1)
self.cnvkey = group2['mgrkey']
self.grpkey = group2['grpkey']
self.bldkey = bldkey.bldkey_random(self.code, self.grpkey)
def setUp(self):
groupsig.init(constants.GL19_CODE, 0)
group1 = groupsig.setup(constants.GL19_CODE)
self.code = constants.GL19_CODE
grpkey1 = group1['grpkey']
self.isskey = group1['mgrkey']
group2 = groupsig.setup(constants.GL19_CODE, grpkey1)
self.cnvkey = group2['mgrkey']
self.grpkey = group2['grpkey']
self.memkeys = []
self.addMember()
self.sig = groupsig.sign("Hello, World!", self.memkeys[0], self.grpkey)
bkey = bldkey.bldkey_random(self.code, self.grpkey)
out = groupsig.blind(self.grpkey, self.sig, "Hello, World!", bkey)
self.bsig = out["bsig"]
print(
"Usage: $python blind.py <grpkey str> <sig1 str> <msg1 str> <sig2 str> <msg2 str>"
)
sys.exit()
groupsig.init(constants.GL19_CODE, 0)
# Import grpkey
gpk = grpkey.grpkey_import(constants.GL19_CODE, sys.argv[1])
# Import signatures
sig1 = signature.signature_import(constants.GL19_CODE, sys.argv[2])
sig2 = signature.signature_import(constants.GL19_CODE, sys.argv[4])
# Blind
bdk = bldkey.bldkey_random(constants.GL19_CODE, gpk)
out = groupsig.blind(gpk, sig1, sys.argv[3], bdk)
bsig1 = out['bsig']
out2 = groupsig.blind(gpk, sig2, sys.argv[5], bdk)
bsig2 = out2['bsig']
## Export Blinded sigs
sbsig1 = blindsig.blindsig_export(bsig1)
sbsig2 = blindsig.blindsig_export(bsig2)
## Export blinding key
sbdk_pub = bldkey.bldkey_export_pub(bdk)
sbdk = bldkey.bldkey_export(bdk)
## Output