ConnectBot导出的ed25519私钥无法在OpenSSH使用，最后发现居然是OpenSSH的一个陈年bug导致的不兼容
解决方案：
$ npm install -g sshpk
$ sshpk-conv ed25519.pem -t ssh -p
BY 河豚频道🐡
Telegram’s stand out feature is its encryption scheme that keeps messages and media secure in transit. The scheme is known as MTProto and is based on 256-bit AES encryption, RSA encryption, and Diffie-Hellman key exchange. The result of this complicated and technical-sounding jargon? A messaging service that claims to keep your data safe.Why do we say claims? When dealing with security, you always want to leave room for scrutiny, and a few cryptography experts have criticized the system. Overall, any level of encryption is better than none, but a level of discretion should always be observed with any online connected system, even Telegram.
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