def testFullSigning():
# stored securely/privately
seed = randombytes(32)
# generates key pair based on seed
sk = SigningKey(seed=seed)
# helper for signing
signer = Signer(sk)
# this is the public key used to verify signatures (securely shared before-hand with recipient)
verkey = signer.verhex
# the message to be signed
msg = b'1234'
# the signature
sig = signer.signature(msg)
# helper for verification
vr = Verifier(verkey)
# verification
isVerified = vr.verify(sig, msg)
assert isVerified
def verifySig(identifier, signature, msg) -> bool:
key = cryptonymToHex(identifier) if not isHex(identifier) else identifier
ser = serializeMsg(msg)
b64sig = signature.encode('utf-8')
sig = b58decode(b64sig)
vr = Verifier(key)
return vr.verify(sig, ser)
def testFullSigning():
# stored securely/privately
seed = randombytes(32)
# generates key pair based on seed
sk = SigningKey(seed=seed)
# helper for signing
signer = Signer(sk)
# this is the public key used to verify signatures (securely shared
# before-hand with recipient)
verkey = signer.verhex
# the message to be signed
msg = b'1234'
# the signature
sig = signer.signature(msg)
# helper for verification
vr = Verifier(verkey)
# verification
isVerified = vr.verify(sig, msg)
assert isVerified
class AddressSigVerifier(Verifier):
def __init__(self, verkey, **kwargs):
self.verkey = verkey
self._vr = NaclVerifier(b58decode(verkey))
def verify(self, sig, msg) -> bool:
return self._vr.verify(sig, msg)
class DidVerifier(Verifier):
def __init__(self, verkey, identifier=None):
_verkey = verkey
self._verkey = None
self._vr = None
if identifier:
rawIdr = b58decode(identifier)
if len(rawIdr) == 32 and not verkey: # assume cryptonym
verkey = identifier
assert verkey, 'verkey must be provided'
if verkey[0] == '~': # abbreviated
verkey = b58encode(
b58decode(identifier) +
b58decode(verkey[1:])).decode("utf-8")
try:
self.verkey = verkey
except Exception as ex:
raise InvalidKey("verkey {}".format(_verkey)) from ex
@property
def verkey(self):
return self._verkey
@verkey.setter
def verkey(self, value):
self._verkey = value
self._vr = NaclVerifier(b58decode(value))
def verify(self, sig, msg) -> bool:
return self._vr.verify(sig, msg)
class DidVerifier(Verifier):
def __init__(self, verkey, identifier=None):
self._verkey = None
self._vr = None
if identifier:
rawIdr = b58decode(identifier)
if len(rawIdr) == 32 and not verkey: # assume cryptonym
verkey = identifier
if verkey[0] == '~': # abbreviated
verkey = b58encode(
b58decode(identifier) + b58decode(verkey[1:]))
self.verkey = verkey
@property
def verkey(self):
return self._verkey
@verkey.setter
def verkey(self, value):
self._verkey = value
self._vr = NaclVerifier(b58decode(value))
def verify(self, sig, msg) -> bool:
return self._vr.verify(sig, msg)
def addVerifier(self, verkey):
self.verifiers[verkey] = Verifier(z85.decode(verkey))
def __init__(self, verkey, **kwargs):
self.verkey = verkey
self._vr = NaclVerifier(b58decode(verkey))
def verkey(self, value):
self._verkey = value
self._vr = NaclVerifier(b58decode(value))