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Diffstat (limited to 'doc/doc-docbook/spec.xfpt')
| -rw-r--r-- | doc/doc-docbook/spec.xfpt | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt index 9243bd3f9..7c8dee36f 100644 --- a/doc/doc-docbook/spec.xfpt +++ b/doc/doc-docbook/spec.xfpt @@ -18454,20 +18454,25 @@ prior to the 4.80 release, as Debian used to patch Exim to raise the minimum acceptable bound from 1024 to 2048. -.option tls_eccurve main string&!! &`auto`& +.option tls_eccurve main string list&!! &`auto`& .cindex TLS "EC cryptography" -This option selects a EC curve for use by Exim when used with OpenSSL. +This option selects EC curves for use by Exim when used with OpenSSL. It has no effect when Exim is used with GnuTLS. -After expansion it must contain a valid EC curve parameter, such as -&`prime256v1`&, &`secp384r1`&, or &`P-512`&. Consult your OpenSSL manual -for valid selections. +After expansion it must contain +.new +one or (only for OpenSSL versiona 1.1.1 onwards) more +.wen +EC curve names, such as &`prime256v1`&, &`secp384r1`&, or &`P-521`&. +Consult your OpenSSL manual for valid curve names. For OpenSSL versions before (and not including) 1.0.2, the string &`auto`& selects &`prime256v1`&. For more recent OpenSSL versions &`auto`& tells the library to choose. -If the option expands to an empty string, no EC curves will be enabled. +.new +If the option expands to an empty string, the effect is undefined. +.wen .option tls_ocsp_file main string&!! unset |