def test_sign_and_verify(self):
msg = b'This message will be signed\n'
pw = b'my private key'
for c in seccure.curves:
pubkey = str(seccure.passphrase_to_pubkey(pw, curve=c))
self.assertTrue(seccure.verify(msg, seccure.sign(msg, pw, curve=c),
pubkey, curve=c))
def test_sign_and_verify(self):
msg = b'This message will be signed\n'
pw = b'my private key'
for c in seccure.curves:
pubkey = str(seccure.passphrase_to_pubkey(pw, curve=c))
self.assertTrue(seccure.verify(msg, seccure.sign(msg, pw, curve=c),
pubkey, curve=c))
def sign(message, passphrase):
passphrase_bytes = utf8_encode(passphrase)
msg_bytes = utf8_encode(message)
non_hex_sig = seccure.sign(msg_bytes,
passphrase_bytes,
sig_format=seccure.SER_BINARY)
return hex_encode(non_hex_sig)
def sign(self, move: Move):
""" put signature into the given move using the user's private key. """
if move.name is None:
raise InvalidNameError
move.user = self.address
serialized = move.serialize(include_signature=False)
move.signature = '{signature} {public_key}'.format(
signature=seccure.sign(
serialized, self.private_key.encode('utf-8')).decode('utf-8'),
public_key=self.public_key,
)
move.id = move.hash
def sign(self, message, private_key):
"""Signs a message with a private_key.
@param message The message to sign.
@param private_key The private key to use for signing.
@return A signature which can be verified with the public key
that pairs with @private_key.
"""
# sign:
signature = seccure.sign(message, private_key).decode('utf-8')
self.logger.debug("Signed " + str(len(message)) + " bytes with private key")
return signature
def test_sign_length(self):
msg = b'ttrMWDqBxjC8UAl8X4TRDSSpd1IyYMh4\n'
pw = b'my private key'
self.assertEqual(seccure.sign(msg, pw),
b'!!!5{LV[=|t~46wS2y<Ub9Ol;uO/fPGU*JYKid+|(JBMspwk7S')
def test_sign(self):
msg = b'This message will be signed\n'
pw = b'my private key'
self.assertEqual(seccure.sign(msg, pw),
b'$HPI?t(I*1vAYsl$|%21WXND=6Br*[>k(OR9B!GOwHqL0s+3Uq')
def sign_with_pass_phrase(m, pass_phrase):
return seccure.sign(m, pass_phrase, curve="brainpoolp384r1")
#build the key for hmac using scrypt
skey = scrypt.hash('password_goes_here', hashlib.sha256(secret).hexdigest())[:32]
#skey = scrypt.encrypt('password', secret, maxtime=0.5)
print ('SCRYPT: \t{}'.format(hex(bytes_to_long(skey))))
#XOR the scrypt key with the secret to create the hmac key
hashkey = bytes_to_long(secret) ^ bytes_to_long(skey)
print ('HASHKEY: \t{}'.format(hex(hashkey)))
#build the hmac hash from the msg using sha256
hmac = HMAC.new(long_to_bytes(hashkey), msg='foo'.encode(), digestmod=SHA256.new())
hash = hmac.hexdigest()
print ('HMAC: \t\t{}'.format(hash))
#create the ECC private key from the hmac hash
newprv = hash.encode()
newpub = str(seccure.passphrase_to_pubkey(newprv))
print ('ECC PRIVATE: \t{}'.format(newprv))
print ('ECC PUBLIC: \t{}'.format(newpub))
#sign the message
sig = seccure.sign('bar'.encode(), newprv)
print ('ECC SIG: \t{}'.format(sig))
#attempt verification
if seccure.verify('bar'.encode(), sig, newpub):
print('GOOD SIGNATURE')
else :
print('BAD SIGNATURE')
def test_sign_length(self):
msg = b'ttrMWDqBxjC8UAl8X4TRDSSpd1IyYMh4\n'
pw = b'my private key'
self.assertEqual(seccure.sign(msg, pw),
b'!!!5{LV[=|t~46wS2y<Ub9Ol;uO/fPGU*JYKid+|(JBMspwk7S')
def test_sign(self):
msg = b'This message will be signed\n'
pw = b'my private key'
self.assertEqual(seccure.sign(msg, pw),
b'$HPI?t(I*1vAYsl$|%21WXND=6Br*[>k(OR9B!GOwHqL0s+3Uq')
def sign_with_pass_phrase(m, pass_phrase):
return seccure.sign(m, pass_phrase, curve="brainpoolp384r1")
# # # using elliptic curve cryptography to encrypt messages. # # use with seccure: https://github.com/MeeSeongIm/py-seccure # # import seccure str(seccure.passphrase_to_pubkey(b'my private key')) # devive the public key ciphertext = seccure.encrypt(b'This is a secret message.\n', b'8W;>i^H0qi|J&$coR5MFpR*Vn') print(ciphertext) seccure.decrypt(ciphertext, b'my private key') seccure.sign(b'This will be a signed message.\n', b'my private key') seccure.verify(b'This will be a signed message.\n', b'', b'8W;>i^H0qi|J&$coR5MFpR*Vn') # to verify the signature
def sign(message, key):
return seccure.sign(message, key, seccure.SER_COMPACT,
"secp256r1/nistp256")
hashlib.sha256(secret).hexdigest())[:32]
#skey = scrypt.encrypt('password', secret, maxtime=0.5)
print('SCRYPT: \t{}'.format(hex(bytes_to_long(skey))))
#XOR the scrypt key with the secret to create the hmac key
hashkey = bytes_to_long(secret) ^ bytes_to_long(skey)
print('HASHKEY: \t{}'.format(hex(hashkey)))
#build the hmac hash from the msg using sha256
hmac = HMAC.new(long_to_bytes(hashkey),
msg='foo'.encode(),
digestmod=SHA256.new())
hash = hmac.hexdigest()
print('HMAC: \t\t{}'.format(hash))
#create the ECC private key from the hmac hash
newprv = hash.encode()
newpub = str(seccure.passphrase_to_pubkey(newprv))
print('ECC PRIVATE: \t{}'.format(newprv))
print('ECC PUBLIC: \t{}'.format(newpub))
#sign the message
sig = seccure.sign('bar'.encode(), newprv)
print('ECC SIG: \t{}'.format(sig))
#attempt verification
if seccure.verify('bar'.encode(), sig, newpub):
print('GOOD SIGNATURE')
else:
print('BAD SIGNATURE')
