在 Python 中生成 CSR

我正在尝试在 Python 中生成 CSR，而不使用 OpenSSL。如果有人能指出正确的方向，我将非常感激。

我假设你不想使用命令行 openssl 本身，Python 库就可以了。

这是我编写的用于创建 CSR 的辅助函数。它从生成的密钥对和 CSR 中返回私钥。该功能依赖于 pyOpenSSL.crypto。

def create_csr(self, common_name, country=None, state=None, city=None,
               organization=None, organizational_unit=None,
               email_address=None):
    """
    Args:
        common_name (str).

        country (str).

        state (str).

        city (str).

        organization (str).

        organizational_unit (str).

        email_address (str).

    Returns:
        (str, str).  Tuple containing private key and certificate
        signing request (PEM).
    """
    key = OpenSSL.crypto.PKey()
    key.generate_key(OpenSSL.crypto.TYPE_RSA, 2048)

    req = OpenSSL.crypto.X509Req()
    req.get_subject().CN = common_name
    if country:
        req.get_subject().C = country
    if state:
        req.get_subject().ST = state
    if city:
        req.get_subject().L = city
    if organization:
        req.get_subject().O = organization
    if organizational_unit:
        req.get_subject().OU = organizational_unit
    if email_address:
        req.get_subject().emailAddress = email_address

    req.set_pubkey(key)
    req.sign(key, 'sha256')

    private_key = OpenSSL.crypto.dump_privatekey(
        OpenSSL.crypto.FILETYPE_PEM, key)

    csr = OpenSSL.crypto.dump_certificate_request(
               OpenSSL.crypto.FILETYPE_PEM, req)

    return private_key, csr