def public_key_to_bytes(pubkey):
result = bytearray([pubkey['version']])
result.extend(utils.int_to_4byte(pubkey['creation_time']))
if pubkey['version'] in (2, 3):
result.extend(utils.int_to_2byte(pubkey['expiration_days']))
result.append(pubkey['pub_algorithm_type'])
if pubkey['pub_algorithm_type'] in (1, 2, 3):
result.extend(utils.int_to_mpi(pubkey['modulus']))
result.extend(utils.int_to_mpi(pubkey['exponent']))
elif pubkey['pub_algorithm_type'] == 17:
result.extend(utils.int_to_mpi(pubkey['prime']))
result.extend(utils.int_to_mpi(pubkey['group_order']))
result.extend(utils.int_to_mpi(pubkey['group_gen']))
result.extend(utils.int_to_mpi(pubkey['key_value']))
elif pubkey['pub_algorithm_type'] in (16, 20):
result.extend(utils.int_to_mpi(pubkey['prime']))
result.extend(utils.int_to_mpi(pubkey['group_gen']))
result.extend(utils.int_to_mpi(pubkey['key_value']))
return result
def public_key_to_bytes(pubkey):
result = bytearray([pubkey['version']])
result.extend(utils.int_to_4byte(pubkey['creation_time']))
if pubkey['version'] in (2, 3):
result.extend(utils.int_to_2byte(pubkey['expiration_days']))
result.append(pubkey['pub_algorithm_type'])
if pubkey['pub_algorithm_type'] in (1, 2, 3):
result.extend(utils.int_to_mpi(pubkey['modulus']))
result.extend(utils.int_to_mpi(pubkey['exponent']))
elif pubkey['pub_algorithm_type'] == 17:
result.extend(utils.int_to_mpi(pubkey['prime']))
result.extend(utils.int_to_mpi(pubkey['group_order']))
result.extend(utils.int_to_mpi(pubkey['group_gen']))
result.extend(utils.int_to_mpi(pubkey['key_value']))
elif pubkey['pub_algorithm_type'] in (16, 20):
result.extend(utils.int_to_mpi(pubkey['prime']))
result.extend(utils.int_to_mpi(pubkey['group_gen']))
result.extend(utils.int_to_mpi(pubkey['key_value']))
return result
def signature_to_bytes(signature):
result = bytearray()
sig_version = signature['sig_version']
result.append(sig_version)
if sig_version >= 4:
result.append(signature['sig_type'])
result.append(signature['pub_algorithm_type'])
result.append(signature['hash_algorithm_type'])
hashed_subpacket_data = bytearray()
unhashed_subpacket_data = bytearray()
for sp in signature['subpackets']:
subpacket_data = subpacket_to_bytes(sp)
if sp['hashed']:
hashed_subpacket_data.extend(subpacket_data)
else:
unhashed_subpacket_data.extend(subpacket_data)
result.extend(utils.int_to_2byte(len(hashed_subpacket_data)))
result.extend(hashed_subpacket_data)
result.extend(utils.int_to_2byte(len(unhashed_subpacket_data)))
result.extend(unhashed_subpacket_data)
elif sig_version in (2, 3):
result.append(0x05)
result.append(signature['sig_type'])
result.extend(utils.int_to_4byte(signature['creation_time']))
result.extend(signature['key_id'])
result.append(signature['pub_algorithm_type'])
result.append(signature['hash_algorithm_type'])
result.extend(signature['hash2'])
for value in signature['values']:
if value is None:
continue
result.extend(utils.int_to_mpi(value))
return result
def signature_to_bytes(signature):
result = bytearray()
sig_version = signature['sig_version']
result.append(sig_version)
if sig_version >= 4:
result.append(signature['sig_type'])
result.append(signature['pub_algorithm_type'])
result.append(signature['hash_algorithm_type'])
hashed_subpacket_data = bytearray()
unhashed_subpacket_data = bytearray()
for sp in signature['subpackets']:
subpacket_data = subpacket_to_bytes(sp)
if sp['hashed']:
hashed_subpacket_data.extend(subpacket_data)
else:
unhashed_subpacket_data.extend(subpacket_data)
result.extend(utils.int_to_2byte(len(hashed_subpacket_data)))
result.extend(hashed_subpacket_data)
result.extend(utils.int_to_2byte(len(unhashed_subpacket_data)))
result.extend(unhashed_subpacket_data)
elif sig_version in (2, 3):
result.append(0x05)
result.append(signature['sig_type'])
result.extend(utils.int_to_4byte(signature['creation_time']))
result.extend(signature['key_id'])
result.append(signature['pub_algorithm_type'])
result.append(signature['hash_algorithm_type'])
result.extend(signature['hash2'])
for value in signature['values']:
if value is None:
continue
result.extend(utils.int_to_mpi(value))
return result
