30 lines
896 B
Python
30 lines
896 B
Python
from cryptography.hazmat.primitives import hashes
|
|
from cryptography.hazmat.backends import default_backend
|
|
from cryptography.hazmat.primitives.serialization import (
|
|
load_pem_private_key, load_pem_public_key
|
|
)
|
|
from cryptography.hazmat.primitives.asymmetric import padding
|
|
from cryptography.exceptions import InvalidSignature
|
|
from authlib.common.encoding import to_bytes
|
|
|
|
|
|
def sign_sha1(msg, rsa_private_key):
|
|
key = load_pem_private_key(
|
|
to_bytes(rsa_private_key),
|
|
password=None,
|
|
backend=default_backend()
|
|
)
|
|
return key.sign(msg, padding.PKCS1v15(), hashes.SHA1())
|
|
|
|
|
|
def verify_sha1(sig, msg, rsa_public_key):
|
|
key = load_pem_public_key(
|
|
to_bytes(rsa_public_key),
|
|
backend=default_backend()
|
|
)
|
|
try:
|
|
key.verify(sig, msg, padding.PKCS1v15(), hashes.SHA1())
|
|
return True
|
|
except InvalidSignature:
|
|
return False
|