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Status Future consideration
Workspace AIX
Created by Guest
Created on Apr 8, 2021

AIX ftpd to use ciphers that need ECDH key exchange

To use FTP in a secure way, the ftpd daemon may use openssl ciphers (FTPS). But modern TLS 1.3 ciphers provided by openssl 1.1 using ECDH key exchange are not possible to be used with the ftpd. These new ciphers should be supported by the ftpd.

Idea priority High
  • Guest
    Apr 21, 2021

    This is a valid customer request that we are considering for a future AIX release.

  • Guest
    Apr 8, 2021

    We need one of this ciphers:

    1 TLS_AES_256_GCM_SHA384 TLSv1.3 0x13,0x02
    2 TLS_CHACHA20_POLY1305_SHA256 TLSv1.3 0x13,0x03
    3 TLS_AES_128_GCM_SHA256 TLSv1.3 0x13,0x01
    4 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 TLSv1.2 0xCC,0xA9
    5 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 TLSv1.2 0xCC,0xA8
    6 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 TLSv1.2 0xC0,0x2C
    7 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 TLSv1.2 0xC0,0x24
    8 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 TLSv1.2 0xC0,0x30
    9 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 TLSv1.2 0xC0,0x28
    10 TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 TLSv1.2 0xC0,0x73
    11 TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 TLSv1.2 0xC0,0x77
    12 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 TLSv1.2 0xC0,0x2B
    13 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 TLSv1.2 0xC0,0x23
    14 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 TLSv1.2 0xC0,0x2F
    15 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 TLSv1.2 0xC0,0x27
    16 TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 TLSv1.2 0xC0,0x72
    17 TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 TLSv1.2 0xC0,0x76

    The last 2 strings are the hex-code-identifiers of the ciphers.