今天，在将Macbook升级到MacOS Catalina 10.15.5之后，所有SSH身份验证突然都无法使用publickey，而是继续要求输入密码。这发生在git操作（fetch，pull push等）和普通的ssh命令（例如ssh -T user@host）上。
这里是运行ssh -T [email protected]时的日志：
The authenticity of host 'github.com (13.229.188.59)' can't be established. ECDSA key fingerprint is SHA256:<removed>. Are you sure you want to continue connecting (yes/no/[fingerprint])? yes Warning: Permanently added 'github.com,13.229.188.59' (ECDSA) to the list of known hosts. [email protected]'s password:并且在运行
ssh -vv [email protected]时记录：
OpenSSH_8.1p1, LibreSSL 2.7.3 debug1: Reading configuration data /Users/ethanify/.ssh/config debug1: /Users/ethanify/.ssh/config line 1: Applying options for * debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 47: Applying options for * debug1: Connecting to github.com port 22. debug1: Connection established. debug1: identity file /Users/ethanify/.ssh/id_rsa type 0 debug1: identity file /Users/ethanify/.ssh/id_rsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_8.1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.8 debug1: match: OpenSSH_5.8 pat OpenSSH_5* compat 0x0c000002 debug1: Authenticating to github.com:22 as 'git' debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: local client KEXINIT proposal debug2: KEX algorithms: curve25519-sha256,[email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c debug2: host key algorithms: [email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected],[email protected],[email protected],ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected] debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected] debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: compression ctos: none,[email protected],zlib debug2: compression stoc: none,[email protected],zlib debug2: languages ctos: debug2: languages stoc: debug2: first_kex_follows 0 debug2: reserved 0 debug2: peer server KEXINIT proposal debug2: KEX algorithms: ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: host key algorithms: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256 debug2: ciphers ctos: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: ciphers stoc: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,[email protected] debug2: MACs ctos: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: MACs stoc: hmac-md5,hmac-sha1,[email protected],hmac-ripemd160,[email protected],hmac-sha1-96,hmac-md5-96 debug2: compression ctos: none,[email protected] debug2: compression stoc: none,[email protected] debug2: languages ctos: debug2: languages stoc: debug2: first_kex_follows 0 debug2: reserved 0 debug1: kex: algorithm: ecdh-sha2-nistp256 debug1: kex: host key algorithm: ecdsa-sha2-nistp256 debug1: kex: server->client cipher: aes128-ctr MAC: [email protected] compression: none debug1: kex: client->server cipher: aes128-ctr MAC: [email protected] compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: Server host key: ecdsa-sha2-nistp256 SHA256:Gwbn26Gf3nYoWOlYU+zedfN1+/xarK1IGY8Q0hRKn5I debug1: Host 'github.com' is known and matches the ECDSA host key. debug1: Found key in /Users/ethanify/.ssh/known_hosts:1 debug2: set_newkeys: mode 1 debug1: rekey out after 4294967296 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug2: set_newkeys: mode 0 debug1: rekey in after 4294967296 blocks debug1: Will attempt key: /Users/ethanify/.ssh/id_rsa RSA SHA256:gjCBKBqeUDLkQTwHEZ8/Nfg+MgQqJfZSKHBvJziCtAw agent debug1: Will attempt key: /Users/ethanify/.ssh/id_rsa RSA SHA256:r/tGt0RaElw9VBSO5dtXxtH0TvsAkY63MlQe/xnZGlk explicit debug2: pubkey_prepare: done debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,password,keyboard-interactive debug1: Next authentication method: publickey debug1: Offering public key: /Users/ethanify/.ssh/id_rsa RSA SHA256:<removed> agent debug2: we sent a publickey packet, wait for reply debug1: Authentications that can continue: publickey,password,keyboard-interactive debug1: Offering public key: /Users/ethanify/.ssh/id_rsa RSA SHA256:<removed> explicit debug2: we sent a publickey packet, wait for reply debug1: Authentications that can continue: publickey,password,keyboard-interactive debug2: we did not send a packet, disable method debug1: Next authentication method: keyboard-interactive debug2: userauth_kbdint debug2: we sent a keyboard-interactive packet, wait for reply debug1: Authentications that can continue: publickey,password,keyboard-interactive debug2: we did not send a packet, disable method debug1: Next authentication method: password [email protected]'s password:
~/.ssh/config的内容：
Host * AddKeysToAgent yes UseKeychain yes IdentityFile ~/.ssh/id_rsa到目前为止，我已经尝试过（但无法正常工作）：
chmod ing ~/.ssh文件夹内容：$ ls -l ~/.ssh
-rw-r--r-- 1 ethanify staff 75 config
-r-------- 1 ethanify staff 3.4K id_rsa
-r--r--r-- 1 ethanify staff 748 id_rsa.pub
-rw-r--r-- 1 ethanify staff 537 known_hosts
$ ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_ed25519 -C "my email"
系统信息：
macOS Catalina 10.15.5 19F101 x86_64MacBookPro11,519.5.0ssh版本：OpenSSH_8.1p1, LibreSSL 2.7.3现在如何摆脱这种情况？
今天，在将Macbook升级到MacOS Catalina 10.15.5之后，所有SSH身份验证突然都无法使用publickey，而是继续要求输入密码。这发生在git操作（获取，提取...
GitHub的官方说明使用rsa密钥，而不是ed25519。