def test(self):
seed = randstr(SEEDBYTES)
signer = ecdsa.SigningKey(seed)
verifier = signer.get_verifying_key()
self._help_test_sign_and_check_good_keys(signer, verifier)
vstr = verifier.serialize()
self.failUnlessEqual(len(vstr), PUBKEYBYTES)
verifier2 = ecdsa.VerifyingKey(vstr)
self._help_test_sign_and_check_good_keys(signer, verifier2)
signer2 = ecdsa.SigningKey(seed)
self._help_test_sign_and_check_good_keys(signer2, verifier2)
verifier3 = signer2.get_verifying_key()
self._help_test_sign_and_check_good_keys(signer, verifier3)
# Now test various ways that the keys could be corrupted or ill-matched.
# Flip one bit of the public key.
badvstr = flip_one_bit(vstr)
try:
badverifier = ecdsa.VerifyingKey(badvstr)
except ecdsa.Error:
# Ok, fine, the verifying key was corrupted and Crypto++ detected this fact.
pass
else:
self._help_test_sign_and_check_bad_keys(signer, badverifier)
# Randomize all bits of the public key.
badvstr = randstr(len(vstr))
assert badvstr != vstr, "Internal error -- randstr() produced the same string twice: %s == %s" % (badvstr, vstr)
try:
badverifier = ecdsa.VerifyingKey(badvstr)
except ecdsa.Error:
# Ok, fine, the key was corrupted and Crypto++ detected this fact.
pass
else:
self._help_test_sign_and_check_bad_keys(signer, badverifier)
# Flip one bit of the private key.
badseed = flip_one_bit(seed)
badsigner = ecdsa.SigningKey(badseed)
self._help_test_sign_and_check_bad_keys(badsigner, verifier)
# Randomize all bits of the private key.
badseed = randstr(len(seed))
assert badseed != seed, "Internal error -- randstr() produced the same string twice: %s == %s" % (badseed, seed)
badsigner = ecdsa.SigningKey(badseed)
self._help_test_sign_and_check_bad_keys(badsigner, verifier)
def test_from_signer_and_serialize_and_deserialize(self):
seed = randstr(SEEDBYTES)
signer = ecdsa.SigningKey(seed)
verifier = signer.get_verifying_key()
s1 = verifier.serialize()
self.failUnlessEqual(len(s1), PUBKEYBYTES)
ecdsa.VerifyingKey(s1)
s2 = verifier.serialize()
self.failUnlessEqual(s1, s2)
def test_construct_from_same_seed_is_reproducible(self):
seed = randstr(SEEDBYTES)
signer1 = ecdsa.SigningKey(seed)
signer2 = ecdsa.SigningKey(seed)
self.failUnlessEqual(signer1.get_verifying_key().serialize(), signer2.get_verifying_key().serialize())
# ... and using different seeds constructs a different private key.
seed3 = randstr(SEEDBYTES)
assert seed3 != seed, "Internal error in Python random module's PRNG (or in pycryptopp's hacks to it to facilitate testing) -- got two identical strings from randstr(%s)" % SEEDBYTES
signer3 = ecdsa.SigningKey(seed3)
self.failIfEqual(signer1.get_verifying_key().serialize(), signer3.get_verifying_key().serialize())
# Also try the all-zeroes string just because bugs sometimes are
# data-dependent on zero or cause bogus zeroes.
seed4 = '\x00'*SEEDBYTES
assert seed4 != seed, "Internal error in Python random module's PRNG (or in pycryptopp's hacks to it to facilitate testing) -- got the all-zeroes string from randstr(%s)" % SEEDBYTES
signer4 = ecdsa.SigningKey(seed4)
self.failIfEqual(signer4.get_verifying_key().serialize(), signer1.get_verifying_key().serialize())
signer5 = ecdsa.SigningKey(seed4)
self.failUnlessEqual(signer5.get_verifying_key().serialize(), signer4.get_verifying_key().serialize())
def test_compatibility(self):
# Confirm that the KDF used by the SigningKey constructor doesn't
# change without suitable backwards-compability
seed = 'bd616451f65d151ddd63efef42202c13457d1a0a44fb6f642be4bf9567ef19c6'.decode('hex')
signer = ecdsa.SigningKey(seed)
v1 = signer.get_verifying_key()
vs = v1.serialize()
vs32 = base64.b32encode(vs)
self.failUnlessEqual(vs32, "AIWKEM44YHQCR3VI7SF7IJI7SSW6YNLMGMWBIXQWXC5522H2KXXHO===")
v2 = ecdsa.VerifyingKey(vs)
# print signer.sign("message").encode('hex')
sig = 'a914953c6e6cecaf97d3d7f142ed1da88014752c3e1cd43b38f3327a73be67075bda7ec4a2ead5bb8a3471271a44ffbbd456b4d3ca470584c05703fdbe7b5bc0'.decode('hex')
self.failUnless(v1.verify("message", sig))
self.failUnless(v2.verify("message", sig))
def ver_init(self, N):
signer = ecdsa.SigningKey(self.seed)
self.sig = signer.sign(msg)
self.verifier = signer.get_verifying_key()
def sign_init(self, N):
self.signer = ecdsa.SigningKey(self.seed)
def gen(self, N):
for i in xrange(N):
ecdsa.SigningKey(self.seed)
def test_sign_and_verify_emptymsg(self):
seed = randstr(SEEDBYTES)
signer = ecdsa.SigningKey(seed)
sig = signer.sign("")
v = signer.get_verifying_key()
self.failUnless(v.verify("", sig))
def test_sign(self):
seed = randstr(SEEDBYTES)
signer = ecdsa.SigningKey(seed)
sig = signer.sign("message")
self.failUnlessEqual(len(sig), SIGBYTES)
def test_construct(self):
seed = randstr(SEEDBYTES)
ecdsa.SigningKey(seed)
def test_construct_bad_arg_type(self):
try:
ecdsa.SigningKey(1)
except TypeError, le:
self.failUnless("must be string" in str(le), le)
def test_construct_short_seed(self):
try:
ecdsa.SigningKey("\x00\x00\x00")
except ecdsa.Error, le:
self.failUnless("seed is required to be of length " in str(le), le)
def test_keys():
test_privkey = ecdsa.SigningKey("testseedtestseedtestseedtestseed")
test_pubkey = test_privkey.get_verifying_key()
return test_pubkey, test_privkey
