[Bug 3466] New: Prefer using 256-bit AEAD algorithms

bugzilla-daemon at mindrot.org bugzilla-daemon at mindrot.org
Tue Aug 2 01:13:38 AEST 2022


            Bug ID: 3466
           Summary: Prefer using 256-bit AEAD algorithms
           Product: Portable OpenSSH
           Version: 8.7p1
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: sshd
          Assignee: unassigned-bugs at mindrot.org
          Reporter: tom25519 at yandex.com

Prefer using 256-bit AEAD algorithms (CHACHA20_POLY1305, AES_256_GCM,
AES_128_GCM), if possible, remove non-AEAD algorithms in the future. 
By the way, although AES_128_GCM key is shorter than AES_256_CTR, but
it's AEAD, which is one of cipher supported in TLS 1.3, so prefer it
rather than AES_256_CTR.

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