Activity log for bug #1962726

Date Who What changed Old value New value Message
2022-03-02 09:45:23 Takashi Kajinami bug added bug
2022-03-02 09:47:06 Takashi Kajinami summary ssh-rsa key will not be allowed in future version of openssl/ssh ssh-rsa key is no longer allowed by recent openssh
2022-03-02 09:48:00 Takashi Kajinami description Description =========== Currently create Key-pair API without actual key content returns the key generated at server side which is formatted in ssh-rsa. However ssh-rsa will be disabled in upcoming openssl/openssh, and the plan is to remove it completely in the future. For example in current CentOS 9 Stream, SHA1 is disabled by default and ssh-rsa no longer works. Fedora disabled SHA1/ssh-rsa by default a while ago. It's be required to support other formats like edcsa which are generally recommended. Description =========== Currently create Key-pair API without actual key content returns the key generated at server side which is formatted in ssh-rsa. However ssh-rsa is no longer supported by default since openssh 8.8 https://www.openssh.com/txt/release-8.8 ``` This release disables RSA signatures using the SHA-1 hash algorithm by default. This change has been made as the SHA-1 hash algorithm is cryptographically broken, and it is possible to create chosen-prefix hash collisions for <USD$50K [1] ``` Actually in current CentOS 9 Stream, SHA1 is disabled by default and ssh-rsa no longer works. Fedora disabled SHA1/ssh-rsa by default a while ago. It's be required to support other formats like edcsa which are generally recommended.
2022-03-02 09:48:07 Takashi Kajinami description Description =========== Currently create Key-pair API without actual key content returns the key generated at server side which is formatted in ssh-rsa. However ssh-rsa is no longer supported by default since openssh 8.8 https://www.openssh.com/txt/release-8.8 ``` This release disables RSA signatures using the SHA-1 hash algorithm by default. This change has been made as the SHA-1 hash algorithm is cryptographically broken, and it is possible to create chosen-prefix hash collisions for <USD$50K [1] ``` Actually in current CentOS 9 Stream, SHA1 is disabled by default and ssh-rsa no longer works. Fedora disabled SHA1/ssh-rsa by default a while ago. It's be required to support other formats like edcsa which are generally recommended. Description =========== Currently create Key-pair API without actual key content returns the key generated at server side which is formatted in ssh-rsa. However ssh-rsa is no longer supported by default since openssh 8.8 https://www.openssh.com/txt/release-8.8 ``` This release disables RSA signatures using the SHA-1 hash algorithm by default. This change has been made as the SHA-1 hash algorithm is cryptographically broken, and it is possible to create chosen-prefix hash collisions for <USD$50K [1] ``` Actually in current CentOS 9 Stream, SHA1 is disabled by default and ssh-rsa no longer works. Fedora disabled SHA1/ssh-rsa by default a while ago. It's be required to support other formats like edcsa which are generally recommended.
2022-03-08 17:48:18 Sylvain Bauza nova: importance Undecided Wishlist
2022-03-08 17:48:22 Sylvain Bauza nova: status New Opinion
2022-03-09 23:57:53 Takashi Kajinami summary ssh-rsa key is no longer allowed by recent openssh ssh-rsa + sha1 is no longer allowed by recent openssh