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 test_rejectValidSignatureWrongMessageBytes(self):
self.addMember()
sig = groupsig.sign(b"Hello, World!", self.memkeys[0], self.grpkey)
b = groupsig.verify(sig, b"Hello, Worlds!", self.grpkey)
self.assertFalse(b)
def test_acceptValidSignatureBytes(self):
self.addMember()
sig = groupsig.sign(b"Hello, World!", self.memkeys[0], self.grpkey)
b = groupsig.verify(sig, b"Hello, World!", self.grpkey)
self.assertTrue(b)
def test_sigExportImport(self):
sig_str = signature.signature_export(self.sig)
sig = signature.signature_import(self.code, sig_str)
b = groupsig.verify(sig, "Hello, World!", self.grpkey)
self.assertTrue(b)
# Setup
issuer = groupsig.setup(constants.GL19_CODE)
_gpk = issuer['grpkey']
isk = issuer['mgrkey']
converter = groupsig.setup(constants.GL19_CODE, _gpk)
csk = converter['mgrkey']
gpk = converter['grpkey']
# Join
msg1 = groupsig.join_mgr(0, isk, gpk)
msg2 = groupsig.join_mem(1, gpk, msgin=msg1)
usk = msg2['memkey']
msg3 = groupsig.join_mgr(2, isk, gpk, msg2['msgout'])
msg4 = groupsig.join_mem(3, gpk, msgin=msg3, memkey=usk)
usk = msg4['memkey']
# Sign
sig = groupsig.sign("Hello, World!", usk, gpk)
# Verify
b = groupsig.verify(sig, "Hello, World!", gpk)
if b == True:
print("VALID signature.")
else:
print("WRONG signature.")
sys.exit()
groupsig.clear(constants.GL19_CODE, issuer['config'])
groupsig.clear(constants.GL19_CODE, converter['config'])
