You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
22 lines
876 B
Python
22 lines
876 B
Python
""" No crypto operation is done on keys.
|
|
They are thus represented as ASCII armored PEM.
|
|
"""
|
|
|
|
from cryptography.hazmat.primitives import serialization
|
|
from cryptography.hazmat.primitives.asymmetric import rsa
|
|
|
|
|
|
def gen_key(bits=2048):
|
|
""" Generate and return a new RSA key.
|
|
"""
|
|
k = rsa.generate_private_key(public_exponent=65537, key_size=bits)
|
|
return k.private_bytes(encoding=serialization.Encoding.PEM,format=serialization.PrivateFormat.PKCS8,encryption_algorithm=serialization.NoEncryption())
|
|
|
|
|
|
def strip_key(pem):
|
|
""" Return only the b64 part of the ASCII armored PEM.
|
|
"""
|
|
priv_key = serialization.load_pem_private_key(pem, password=None)
|
|
public_pem = priv_key.public_key().public_bytes(encoding=serialization.Encoding.PEM,format=serialization.PublicFormat.SubjectPublicKeyInfo)
|
|
return public_pem.replace(b"\n", b"").split(b"-----")[2]
|