参考链接
========================================

RFC
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- `RFC 4251 The Secure Shell (SSH) Protocol Architecture <https://www.rfc-editor.org/rfc/rfc4251>`_
- `RFC 4252 The Secure Shell (SSH) Authentication Protocol <https://www.rfc-editor.org/rfc/rfc4252>`_
- `RFC 4253 The Secure Shell (SSH) Transport Layer Protocol <https://www.rfc-editor.org/rfc/rfc4253>`_
- `RFC 4254 The Secure Shell (SSH) Connection Protocol <https://www.rfc-editor.org/rfc/rfc4254>`_
- `RFC 8308 Extension Negotiation in the Secure Shell (SSH) Protocol <https://www.rfc-editor.org/rfc/rfc8308>`_

漏洞相关
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- `CVE-2016-20012 - Publickey Information leak - Only allow SSH_MSG_USERAUTH_REQUEST with signature <https://github.com/openssh/openssh-portable/pull/270>`_

论文
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- Roy L, Lyakhov S, Jang Y, et al. Practical Privacy-Preserving Authentication for SSH[J]. Cryptology ePrint Archive, 2022.