X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/9ac22119716d965a167beaa3f98e0569ca9ff3d7..9dc2b215e83a63efa242f6acd3ab7af8b608e5a1:/doc/doc-docbook/spec.xfpt

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index 7e59c304d..6b4b5f314 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -10033,6 +10033,25 @@ environments where Exim uses base 36 instead of base 62 for its message
 identifiers, base-36 digits. The number is converted to decimal and output as a
 string.
 
+.new
+.vitem &*${base64:*&<&'string'&>&*}*&
+.cindex "expansion" "base64 encoding"
+.cindex "base64 encoding" "in string expansion"
+.cindex "&%base64%& expansion item"
+.cindex certificate "base64 of DER"
+This operator converts a string into one that is base64 encoded.
+
+If the string is a single variable of type certificate,
+returns the base64 encoding of the DER form of the certificate.
+
+
+.vitem &*${base64d:*&<&'string'&>&*}*&
+.cindex "expansion" "base64 decoding"
+.cindex "base64 decoding" "in string expansion"
+.cindex "&%base64d%& expansion item"
+This operator converts a base64-encoded string into the un-coded form.
+.wen
+
 
 .vitem &*${domain:*&<&'string'&>&*}*&
 .cindex "domain" "extraction"
@@ -10463,10 +10482,10 @@ the system administrator. &*Warning*&: The file size may be incorrect on 32-bit
 systems for files larger than 2GB.
 
 .vitem &*${str2b64:*&<&'string'&>&*}*&
-.cindex "expansion" "base64 encoding"
-.cindex "base64 encoding" "in string expansion"
 .cindex "&%str2b64%& expansion item"
-This operator converts a string into one that is base64 encoded.
+.new
+Now deprecated, a synonym for the &%base64%& expansion operator.
+.wen
 
 
 
@@ -37916,8 +37935,10 @@ linked to a domain which that entity controls.  It permits reputation to
 be tracked on a per-domain basis, rather than merely upon source IP address.
 DKIM is documented in RFC 4871.
 
-Since version 4.70, DKIM support is compiled into Exim by default. It can be
-disabled by setting DISABLE_DKIM=yes in &_Local/Makefile_&.
+.new
+DKIM support is compiled into Exim by default if TLS support is present.
+.wen
+It can be disabled by setting DISABLE_DKIM=yes in &_Local/Makefile_&.
 
 Exim's DKIM implementation allows to
 .olist