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Remove the dependency on pyOpenSSL

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This commit is contained in:
Florent Daigniere
2022-11-27 15:41:21 +01:00
parent a366116cae
commit 3e38e7b89d
4 changed files with 10 additions and 11 deletions
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15
core/admin/mailu/dkim.py
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@@ -2,20 +2,21 @@
They are thus represented as ASCII armored PEM.
"""
from OpenSSL import crypto
from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.primitives.asymmetric import rsa
def gen_key(key_type=crypto.TYPE_RSA, bits=2048):
def gen_key(bits=2048):
""" Generate and return a new RSA key.
"""
key = crypto.PKey()
key.generate_key(key_type, bits)
return crypto.dump_privatekey(crypto.FILETYPE_PEM, 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.
"""
key = crypto.load_privatekey(crypto.FILETYPE_PEM, pem)
public_pem = crypto.dump_publickey(crypto.FILETYPE_PEM, key)
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]