crypt.py 文件源码

def from_string(key, password='notasecret'):
      """Construct a Signer instance from a string.

      Args:
        key: string, private key in PKCS12 or PEM format.
        password: string, password for the private key file.

      Returns:
        Signer instance.

      Raises:
        OpenSSL.crypto.Error if the key can't be parsed.
      """
      if key.startswith('-----BEGIN '):
        pkey = crypto.load_privatekey(crypto.FILETYPE_PEM, key)
      else:
        pkey = crypto.load_pkcs12(key, password).get_privatekey()
      return OpenSSLSigner(pkey)