def get_pubkey_addresses( pubkey ):
"""
Get the compressed and uncompressed addresses
for a public key. Useful for verifying
signatures by key address.
If we're running in testnet mode, then use
the testnet version byte.
Return (compressed address, uncompressed address)
"""
public_key_object = ECPublicKey(pubkey, version_byte=virtualchain.version_byte)
compressed_address = None
uncompressed_address = None
if public_key_object._type == PubkeyType.compressed:
compressed_address = public_key_object.address()
uncompressed_address = bin_hash160_to_address(
bin_hash160(
decompress(public_key_object.to_bin())
),
version_byte=virtualchain.version_byte
)
elif public_key_object._type == PubkeyType.uncompressed:
compressed_address = bin_hash160_to_address(
bin_hash160(
compress(public_key_object.to_bin())
),
version_byte=virtualchain.version_byte
)
uncompressed_address = public_key_object.address()
else:
raise Exception("Invalid public key")
return (compressed_address, uncompressed_address)
def get_pubkey_addresses(pubkey):
"""
Get the compressed and uncompressed addresses
for a public key. Useful for verifying
signatures by key address.
If we're running in testnet mode, then use
the testnet version byte.
Return (compressed address, uncompressed address)
"""
version_byte = virtualchain.version_byte
compressed_address, uncompressed_address = None, None
pubkey = ECPublicKey(pubkey, version_byte=version_byte)
pubkey_bin = pubkey.to_bin()
if pubkey._type == PubkeyType.compressed:
compressed_address = pubkey.address()
uncompressed_address = decompress(pubkey_bin)
hashed_address = bin_hash160(uncompressed_address)
uncompressed_address = bin_hash160_to_address(
hashed_address, version_byte=version_byte)
elif pubkey._type == PubkeyType.uncompressed:
uncompressed_address = pubkey.address()
compressed_address = compress(pubkey_bin)
hashed_address = bin_hash160(compressed_address)
compressed_address = bin_hash160_to_address(hashed_address,
version_byte=version_byte)
else:
raise Exception('Invalid public key')
return compressed_address, uncompressed_address
def get_pubkey_addresses( pubkey ):
"""
Get the compressed and uncompressed addresses
for a public key. Useful for verifying
signatures by key address.
Return (compressed address, uncompressed address)
"""
public_key_object = ECPublicKey(pubkey)
compressed_address = None
uncompressed_address = None
if public_key_object._type == PubkeyType.compressed:
compressed_address = public_key_object.address()
uncompressed_address = bin_hash160_to_address(
bin_hash160(
decompress(public_key_object.to_bin())
)
)
elif public_key_object._type == PubkeyType.uncompressed:
compressed_address = bin_hash160_to_address(
bin_hash160(
compress(public_key_object.to_bin())
)
)
uncompressed_address = public_key_object.address()
else:
raise Exception("Invalid public key")
return (compressed_address, uncompressed_address)
def verify_token(token, public_key_or_address, signing_algorithm="ES256K"):
""" A function for validating an individual token.
"""
decoded_token = decode_token(token)
decoded_token_payload = decoded_token["payload"]
if "subject" not in decoded_token_payload:
raise ValueError("Token doesn't have a subject")
if "publicKey" not in decoded_token_payload["subject"]:
raise ValueError("Token doesn't have a subject public key")
if "issuer" not in decoded_token_payload:
raise ValueError("Token doesn't have an issuer")
if "publicKey" not in decoded_token_payload["issuer"]:
raise ValueError("Token doesn't have an issuer public key")
if "claim" not in decoded_token_payload:
raise ValueError("Token doesn't have a claim")
issuer_public_key = str(decoded_token_payload["issuer"]["publicKey"])
public_key_object = ECPublicKey(issuer_public_key)
compressed_public_key = compress(issuer_public_key)
decompressed_public_key = decompress(issuer_public_key)
if public_key_object._type == PubkeyType.compressed:
compressed_address = public_key_object.address()
uncompressed_address = bin_hash160_to_address(
bin_hash160(
decompress(public_key_object.to_bin())
)
)
elif public_key_object._type == PubkeyType.uncompressed:
compressed_address = bin_hash160_to_address(
bin_hash160(
compress(public_key_object.to_bin())
)
)
uncompressed_address = public_key_object.address()
else:
raise ValueError("Invalid issuer public key format")
if public_key_or_address == compressed_public_key:
pass
elif public_key_or_address == decompressed_public_key:
pass
elif public_key_or_address == compressed_address:
pass
elif public_key_or_address == uncompressed_address:
pass
else:
raise ValueError("Token public key doesn't match the verifying value")
token_verifier = TokenVerifier()
if not token_verifier.verify(token, public_key_object.to_pem()):
raise ValueError("Token was not signed by the issuer public key")
return decoded_token
def verify_token(token, public_key_or_address, signing_algorithm="ES256K"):
""" A function for validating an individual token.
"""
decoded_token = decode_token(token)
decoded_token_payload = decoded_token["payload"]
if "subject" not in decoded_token_payload:
raise ValueError("Token doesn't have a subject")
if "publicKey" not in decoded_token_payload["subject"]:
raise ValueError("Token doesn't have a subject public key")
if "issuer" not in decoded_token_payload:
raise ValueError("Token doesn't have an issuer")
if "publicKey" not in decoded_token_payload["issuer"]:
raise ValueError("Token doesn't have an issuer public key")
if "claim" not in decoded_token_payload:
raise ValueError("Token doesn't have a claim")
issuer_public_key = str(decoded_token_payload["issuer"]["publicKey"])
public_key_object = ECPublicKey(issuer_public_key)
compressed_public_key = compress(issuer_public_key)
decompressed_public_key = decompress(issuer_public_key)
if public_key_object._type == PubkeyType.compressed:
compressed_address = public_key_object.address()
uncompressed_address = bin_hash160_to_address(
bin_hash160(decompress(public_key_object.to_bin())))
elif public_key_object._type == PubkeyType.uncompressed:
compressed_address = bin_hash160_to_address(
bin_hash160(compress(public_key_object.to_bin())))
uncompressed_address = public_key_object.address()
else:
raise ValueError("Invalid issuer public key format")
if public_key_or_address == compressed_public_key:
pass
elif public_key_or_address == decompressed_public_key:
pass
elif public_key_or_address == compressed_address:
pass
elif public_key_or_address == uncompressed_address:
pass
else:
raise ValueError("Token public key doesn't match the verifying value")
token_verifier = TokenVerifier()
if not token_verifier.verify(token, public_key_object.to_pem()):
raise ValueError("Token was not signed by the issuer public key")
return decoded_token