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(Created page with "===Stuff you need to remember for openssl=== For creating a self signed certificate chain, having a password makes things more of a PITA.. * Process to create chain without a password: <pre> openssl genrsa -out ca.key 4096 openssl req -new -x509 -days 36500 -key ca.key -out ca.crt openssl genrsa -out client.key 4096 openssl req -new -key client.key -out client.csr openssl x509 -req -days 36500 -in client.csr -CA ca.crt -CAkey ca.key -set_serial 01 -out client....") |
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If you WANT a password set for the certificate, then the genrsa command needs -des3 added as a switch. That will require a password at that point. | If you WANT a password set for the certificate, then the genrsa command needs -des3 added as a switch. That will require a password at that point. | ||
[https://justin.kelly.org.au/how-to-create-a-self-sign-ssl-cert-with-no-pa/| Source Link for how to] | [https://justin.kelly.org.au/how-to-create-a-self-sign-ssl-cert-with-no-pa/| Source Link for how to] | ||
== check ciphers for cert == | |||
<pre> | |||
#!/usr/bin/env bash | |||
#https://blog.lxsang.me/post/id/31 | |||
# OpenSSL requires the port number. | |||
SERVER=$1 | |||
# cool way to set defaults, if set or set default | |||
# short circuit logic. Spiffy trick. | |||
#DELAY=${2:-} || DELAY=1 | |||
DELAY=1 | |||
ciphers=$(openssl ciphers 'ALL:eNULL' | sed -e 's/:/ /g') | |||
echo Obtaining cipher list from $(openssl version). | |||
for cipher in ${ciphers[@]} | |||
do | |||
echo -n Testing $cipher... | |||
result=$(echo -n | openssl s_client -cipher "$cipher" -connect $SERVER 2>&1) | |||
if [[ "$result" =~ ":error:" ]] ; then | |||
error=$(echo -n $result | cut -d':' -f6) | |||
echo NO \($error\) | |||
else | |||
if echo $result | grep -q "Verify return code: 0 (ok)"; then | |||
echo YES | |||
else | |||
echo UNKNOWN RESPONSE | |||
echo $result | |||
fi | |||
fi | |||
sleep $DELAY | |||
done | |||
</pre> | |||
[[Category:openssl]] | [[Category:openssl]] | ||
Revision as of 11:28, 21 September 2023
Stuff you need to remember for openssl
For creating a self signed certificate chain, having a password makes things more of a PITA..
- Process to create chain without a password:
openssl genrsa -out ca.key 4096 openssl req -new -x509 -days 36500 -key ca.key -out ca.crt openssl genrsa -out client.key 4096 openssl req -new -key client.key -out client.csr openssl x509 -req -days 36500 -in client.csr -CA ca.crt -CAkey ca.key -set_serial 01 -out client.crt openssl rsa -in client.key -out client.priv cat client.crt ca.crt client.priv > client.pem openssl x509 -text -noout -in ./client.pem
If you WANT a password set for the certificate, then the genrsa command needs -des3 added as a switch. That will require a password at that point. Source Link for how to
check ciphers for cert
#!/usr/bin/env bash
#https://blog.lxsang.me/post/id/31
# OpenSSL requires the port number.
SERVER=$1
# cool way to set defaults, if set or set default
# short circuit logic. Spiffy trick.
#DELAY=${2:-} || DELAY=1
DELAY=1
ciphers=$(openssl ciphers 'ALL:eNULL' | sed -e 's/:/ /g')
echo Obtaining cipher list from $(openssl version).
for cipher in ${ciphers[@]}
do
echo -n Testing $cipher...
result=$(echo -n | openssl s_client -cipher "$cipher" -connect $SERVER 2>&1)
if [[ "$result" =~ ":error:" ]] ; then
error=$(echo -n $result | cut -d':' -f6)
echo NO \($error\)
else
if echo $result | grep -q "Verify return code: 0 (ok)"; then
echo YES
else
echo UNKNOWN RESPONSE
echo $result
fi
fi
sleep $DELAY
done