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.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 -c
%.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 -c
# 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 -c
%.crt: %.key
openssl req -new -x509 -nodes -key $^ -days 365 \
-sha256 -out $@ -utf8 -config $(firstword $^)
%.crt:
umask 0077 && touch $*.key
openssl req -new -x509 -newkey rsa:$(keysize) -nodes -keyout $*.key \
-days 365 -sha256 -out $@ -utf8 -subj /CN=$*
@chmod 400 $*.key -c
# Generate a config from the example
%.cnf:
sed 's,example\.com,$*,g' openssl.cnf > $@
%.key:
umask 0077 && openssl genrsa -out $@ $(keysize)
@chmod 400 $@ -c
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