def sign(to_sign, private_key, options, chain_name='mainnet'):
import copy
copy = copy.deepcopy(to_sign)
if 'signature' in copy:
del copy['signature']
# normalize and get data to hash
normalized = normalize_jsonld(to_sign)
to_hash = _getDataToHash(normalized, options=options)
# TODO: obtain lock while modifying global state
bitcoin.SelectParams(chain_name)
message = BitcoinMessage(to_hash)
secret_key = CBitcoinSecret(private_key)
signature = SignMessage(secret_key, message)
# compact just signature part against all contexts
signature_payload = {
'@context': SECURITY_CONTEXT_URL,
'type': algorithm,
'creator': options.creator,
'created': options.created,
'signatureValue': signature.decode('utf-8')
}
tmp = {'https://w3id.org/security#signature': signature_payload}
prev_contexts = JsonLdProcessor.get_values(to_sign, '@context')
if not SECURITY_CONTEXT_URL in prev_contexts:
prev_contexts.append(SECURITY_CONTEXT_URL)
c = {'@context': prev_contexts}
res = jsonld.compact(tmp,
c,
options={'documentLoader': cached_document_loader})
copy['@context'] = prev_contexts
copy['signature'] = res['signature']
return copy
# This file is part of python-bitcoinlib.
#
# It is subject to the license terms in the LICENSE file found in the top-level
# directory of this distribution.
#
# No part of python-bitcoinlib, including this file, may be copied, modified,
# propagated, or distributed except according to the terms contained in the
# LICENSE file.
from __future__ import absolute_import, division, print_function, unicode_literals
from bitcoin.wallet import CBitcoinSecret, P2PKHBitcoinAddress
from bitcoin.signmessage import BitcoinMessage, VerifyMessage, SignMessage
key = CBitcoinSecret("L4vB5fomsK8L95wQ7GFzvErYGht49JsCPJyJMHpB4xGM6xgi2jvG")
address = P2PKHBitcoinAddress.from_pubkey(key.pub) # "1F26pNMrywyZJdr22jErtKcjF8R3Ttt55G"
message = "Hey I just met you, and this is crazy, but I'll verify my address, maybe ..."
message = BitcoinMessage(message)
signature = SignMessage(key, message)
print(key, address)
print("Address: %s" % address)
print("Message: %s" % message)
print("\nSignature: %s" % signature)
print("\nVerified: %s" % VerifyMessage(address, message, signature))
print("\nTo verify using bitcoin core;")
print("`bitcoin-cli verifymessage %s \"%s\" \"%s\"`" % (address, signature.decode('ascii'), message))
# It is subject to the license terms in the LICENSE file found in the top-level
# directory of this distribution.
#
# No part of python-bitcoinlib, including this file, may be copied, modified,
# propagated, or distributed except according to the terms contained in the
# LICENSE file.
from __future__ import absolute_import, division, print_function, unicode_literals
from bitcoin.wallet import CBitcoinSecret, P2PKHBitcoinAddress
from bitcoin.signmessage import BitcoinMessage, VerifyMessage, SignMessage
key = CBitcoinSecret("L4vB5fomsK8L95wQ7GFzvErYGht49JsCPJyJMHpB4xGM6xgi2jvG")
address = P2PKHBitcoinAddress.from_pubkey(
key.pub) # "1F26pNMrywyZJdr22jErtKcjF8R3Ttt55G"
message = "Hey I just met you, and this is crazy, but I'll verify my address, maybe ..."
message = BitcoinMessage(message)
signature = SignMessage(key, message)
print(key, address)
print("Address: %s" % address)
print("Message: %s", message)
print("\nSignature: %s" % signature)
print("\nVerified: %s" % VerifyMessage(address, message, signature))
print("\nTo verify using bitcoin core;")
print("`bitcoin-cli verifymessage %s \"%s\" \"%s\"`" %
(address, signature.decode('ascii'), message))