From e156c05ad42fdf522a3421ff98e5eb961ac6df41 Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Tue, 31 Oct 2017 17:28:23 +0100
Subject: Rename Makefile -> GNUmakefile to reflect dependency on GNU Make

---
 certs/GNUmakefile | 66 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 certs/GNUmakefile

(limited to 'certs/GNUmakefile')

diff --git a/certs/GNUmakefile b/certs/GNUmakefile
new file mode 100644
index 00000000..fd4a2932
--- /dev/null
+++ b/certs/GNUmakefile
@@ -0,0 +1,66 @@
+.DEFAULT: localhost.crt
+keysize=2048
+
+# How to:
+# First, `make yourhost.cnf` which creates a openssl config file.
+# Then edit this file and fill in the details you want it to have,
+# and add or change hosts and components it should cover.
+# Then `make yourhost.key` to create your private key, you can
+# include keysize=number to change the size of the key.
+# Then you can either `make yourhost.csr` to generate a certificate
+# signing request that you can submit to a CA, or `make yourhost.crt`
+# to generate a self signed certificate.
+
+.PRECIOUS: %.cnf %.key
+
+# To request a cert
+%.csr: %.cnf %.key
+	openssl req -new -key $(lastword $^) \
+		-sha256 -utf8 -config $(firstword $^) -out $@
+
+%.csr: %.cnf
+	umask 0077 && touch $*.key
+	openssl req -new -newkey rsa:$(keysize) -nodes -keyout $*.key \
+		-sha256 -utf8 -config $^ -out $@
+	@chmod 400 $*.key
+
+%.csr: %.key
+	openssl req -new -key $^ -utf8 -subj /CN=$* -out $@
+
+%.csr:
+	umask 0077 && touch $*.key
+	openssl req -new -newkey rsa:$(keysize) -nodes -keyout $*.key \
+		-utf8 -subj /CN=$* -out $@
+	@chmod 400 $*.key
+
+# Self signed
+%.crt: %.cnf %.key
+	openssl req -new -x509 -key $(lastword $^) -days 365 -sha256 -utf8 \
+		-config $(firstword $^) -out $@
+
+%.crt: %.cnf
+	umask 0077 && touch $*.key
+	openssl req -new -x509 -newkey rsa:$(keysize) -nodes -keyout $*.key \
+		-days 365 -sha256 -utf8 -config $(firstword $^) -out $@
+	@chmod 400 $*.key
+
+%.crt: %.key
+	openssl req -new -x509 -key $^ -days 365 -sha256 -utf8 -subj /CN=$* -out $@
+
+%.crt:
+	umask 0077 && touch $*.key
+	openssl req -new -x509 -newkey rsa:$(keysize) -nodes -keyout $*.key \
+		-days 365 -sha256 -out $@ -utf8 -subj /CN=$*
+	@chmod 400 $*.key
+
+# Generate a config from the example
+%.cnf:
+	sed 's,example\.com,$*,g' openssl.cnf > $@
+
+%.key:
+	umask 0077 && openssl genrsa -out $@ $(keysize)
+	@chmod 400 $@
+
+# Generate Diffie-Hellman parameters
+dh-%.pem:
+	openssl dhparam -out $@ $*
-- 
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