def can_sign_unspent(self, unspent):
script = bytes_to_hex(address_to_scriptpubkey(self.address))
if self.segwit_address:
segwit_script = bytes_to_hex(
address_to_scriptpubkey(self.segwit_address))
return unspent.script == script or unspent.script == segwit_script
else:
return unspent.script == script
def handle_cert(self, pem):
now = timezone.now()
x509_cert = x509.load_pem_x509_certificate(pem.encode('utf-8'),
default_backend())
issuer_cn = x509_cert.issuer
try:
issuer_serial = x509_cert.extensions.get_extension_for_oid(
ExtensionOID.AUTHORITY_KEY_IDENTIFIER)
except x509.ExtensionNotFound:
log.error('Cannot get AuthorityKeyIdentifier extension.')
return
try:
ca_serial = bytes_to_hex(issuer_serial.value.key_identifier)
ca_name = issuer_cn.get_attributes_for_oid(
NameOID.COMMON_NAME)[0].value
except Exception as e:
log.exception(e)
self.ca = CertificateAuthority.objects.get_or_create(
serial=ca_serial,
defaults={
'name': ca_name,
'display_name': ca_name,
})[0]
try:
cert, created = Certificate.objects.get_or_create(
pem=pem,
defaults={
'ca': self.ca,
'first_seen': now,
'last_seen': now,
'serial': int_to_hex(x509_cert.serial_number),
'valid_from': x509_cert.not_valid_before,
'valid_until': x509_cert.not_valid_after,
})
except Exception as e:
log.exception(e)
return
if not created: # update information
cert.last_seen = now
cert.save()
def handle_cert(self, pem):
now = timezone.now()
x509_cert = x509.load_pem_x509_certificate(pem.encode('utf-8'), default_backend())
issuer_cn = x509_cert.issuer
try:
issuer_serial = x509_cert.extensions.get_extension_for_oid(ExtensionOID.AUTHORITY_KEY_IDENTIFIER)
except x509.ExtensionNotFound:
log.error('Cannot get AuthorityKeyIdentifier extension.')
return
try:
ca_serial = bytes_to_hex(issuer_serial.value.key_identifier)
ca_name = issuer_cn.get_attributes_for_oid(NameOID.COMMON_NAME)[0].value
except Exception as e:
log.exception(e)
self.ca = CertificateAuthority.objects.get_or_create(serial=ca_serial, defaults={
'name': ca_name,
'display_name': ca_name,
})[0]
try:
cert, created = Certificate.objects.get_or_create(pem=pem, defaults={
'ca': self.ca,
'first_seen': now,
'last_seen': now,
'serial': int_to_hex(x509_cert.serial_number),
'valid_from': x509_cert.not_valid_before,
'valid_until': x509_cert.not_valid_after,
})
except Exception as e:
log.exception(e)
return
if not created: # update information
cert.last_seen = now
cert.save()
def calc_txid(tx_hex):
tx_obj = deserialize(tx_hex)
return bytes_to_hex(double_sha256(tx_obj.legacy_repr())[::-1])
def to_hex(self):
return bytes_to_hex(bytes(self))
def pub_to_hex(self):
""":rtype: ``str`` """
return bytes_to_hex(self.public_key)