error in libcrypto,Invalid key length

AlmaLinux9(RHEL9)世代からRHEL6世代にアクセスすると下記エラー

no matching host key type found. Their offer: ssh-rsa,ssh-dss

# vi ~/.ssh/config
Host hoge
    HostKeyAlgorithms ssh-dss,ssh-rsa
    PubkeyAcceptedKeyTypes +ssh-rsa
    KexAlgorithms +diffie-hellman-group1-sha1,diffie-hellman-group14-sha1

そして、

error in libcrypto

# update-crypto-policies --set DEFAULT:SHA1
Setting system policy to DEFAULT:SHA1
Note: System-wide crypto policies are applied on application start-up.
It is recommended to restart the system for the change of policies
to fully take place.

参考
https://www.unix-power.net/networking/alma9-sshclient

鍵長が2048未満1024等だと下記らしい

Bad server host key: Invalid key length

Host hoge
  RequiredRSASize 1024

https://support.atlassian.com/bamboo/kb/repository-checkout-fails-with-bad-server-host-key-invalid-key-length/