Description

The SSL_CIPHER_SUITES option specifies one or more SSL/TLS 1.3 specific cipher suites that UFTP would like to use to secure the control and data sessions for an FTPS transfer.

This option is used only when the transfer protocol is FTPS.

This option is specific to TLS 1.3. To configure ciphers for TLS 1.2 and earlier, see the ssl_cipher_list option.

Usage

Method	Syntax	IBM i	HP NonStop	UNIX	Windows	z/OS
Command Line, Short Form	n/a
Command Line, Long Form	-ssl_cipher_suites list
Environment Variable	UFTPSSLCIPHERSUITES=list
Configuration File Keyword	ssl_cipher_suites list

The option is NOT currently supported on HP-UX

Values

list is a comma-separated list of TLS 1.3 SSL/TLS cipher suites. The following table identifies the cipher suites supported for this option.

The list is in default order, with the most preferred suite first and the least preferred suite last.

Cipher Suite	Description
TLS_AES_256_GCM_SHA384	256-bit AES encryption in Galois Counter Mode, SHA-2 384-bit message digest
TLS_CHACHA20_POLY1305_SHA256	256-bit CHACHA encryption with POLY1305 message authentication, SHA-2 256-bit message digest
TLS_AES_128_GCM_SHA256	128-bit AES encryption in Galois Counter Mode, SHA-2 256-bit message digest

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