有没有python模块可以通过证书库中的RSA密钥对来签名和验证数据？

from cryptography.hazmat.primitives import serialization
from cryptography.hazmat.primitives.asymmetric import padding
from cryptography.hazmat.primitives import hashes

# 加载私钥
with open('private_key.pem', 'rb') as key_file:
    private_key = serialization.load_pem_private_key(
        key_file.read(),
        password=None
    )

# 加载公钥
with open('public_key.pem', 'rb') as key_file:
    public_key = serialization.load_pem_public_key(
        key_file.read()
    )

# 待签名的数据
data = b'This is the data to be signed'

# 使用私钥进行签名
signature = private_key.sign(
    data,
    padding.PSS(
        mgf=padding.MGF1(hashes.SHA256()),
        salt_length=padding.PSS.MAX_LENGTH
    ),
    hashes.SHA256()
)

# 使用公钥进行验证
try:
    public_key.verify(
        signature,
        data,
        padding.PSS(
            mgf=padding.MGF1(hashes.SHA256()),
            salt_length=padding.PSS.MAX_LENGTH
        ),
        hashes.SHA256()
    )
    print("验证成功")
except:
    print("验证失败")