AsyncSSH这个 Python 包在Python asyncio框架的基础实现 SSHv2 协议的异步客户端和服务器端。求 Python 3.4 或者更新版本以及 PyCA 库或者是 PyCrypto 库用于加密功能。

显着特征：

• Written from the ground up to be based on Python 3

• Support for a number of key exchange methods

  • Diffie Hellman group1 and group14 with SHA1
  • Diffie Hellman group exchange with SHA1 and SHA256
  • Elliptic Curve Diffie Hellman (nistp256, nistp384, and nistp521)
  • Curve25519 (if curve25519-donna Python wrapper is installed)

  </dd></dl></li>

  Support for multiple authentication methods

  • Password, public key, and keyboard-interactive
  </ul> </dd></dl></li>

  • Support for a variety of public key formats

    • DSA, RSA, and ECDSA keys
    • PKCS#1/PKCS#8 DER and PEM, OpenSSH, and RFC4716 formats
    • Password-based encryption of private keys
    </ul> </dd></dl></li>

    • Support for a variety of ciphers (provided via PyCA or PyCrypto)

      • AES, ARC4, Blowfish, CAST, and Triple DES
      </ul> </dd></dl></li>

      • Support for a variety of MAC algorithms

        • HMAC with MD5, SHA1, SHA256, and SHA512
        </ul> </dd></dl></li>

        • Support for gzip compression

          • Including OpenSSH variant to delay compression until after auth
          </ul> </dd></dl></li>

          • Support for passing environment variables, terminal type, and window size

          • Support for multiple simultaneous sessions on a single SSH connection

          • Support for handling multiple SSH connections in a single event loop

          • Support for direct and forwarded TCP/IP channels

          • Support for both byte and string based I/O with settable encoding

          • Compatibility with OpenSSH "Encrypt then MAC" option for better security

          • Time and byte-count based session key renegotiation

          • Designed to be easy to extend to support new forms of key exchange, authentication methods, ciphers, and compression algorithms

          </ul>

          项目主页：http://www.open-open.com/lib/view/home/1418350026511