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[users/heiko/exim.git] / src / util / gen_pkcs3.c

diff --git a/src/util/gen_pkcs3.c b/src/util/gen_pkcs3.c
index ae7e7610aa5e899c6cf088329899108341cad40d..4be2c581e3d67bd7c235fb864dd587fbbadbdeeb 100644 (file)
--- a/src/util/gen_pkcs3.c
+++ b/src/util/gen_pkcs3.c
@@ -7,6 +7,16 @@
  * c99 $(pkg-config --cflags openssl) gen_pkcs3.c $(pkg-config --libs openssl)
  */
 
+/*
+ * Rationale:
+ * The Diffie-Hellman primes which are embedded into Exim as named primes for
+ * the tls_dhparam option are in the std-crypto.c file.  The source for those
+ * comes from various RFCs, where they are given in hexadecimal form.
+ *
+ * This tool provides convenient conversion, to reduce the risk of human
+ * error in transcription.
+ */
+
 #include <ctype.h>
 #include <errno.h>
 #include <stdbool.h>