Zertifikat: Unterschied zwischen den Versionen

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[[Kategorie:ServerApplikation]] [[Kategorie:Sicherheit]]
[[Kategorie:ServerApplikation]] [[Kategorie:Sicherheit]]


== CA generieren (Version 3) ==
== Dateitypen ==
<pre>CERT=vmd9593
* Encodings (also used as extensions)
# key generieren:
** .DER = The DER extension is used for binary DER encoded certificates. These files may also bear the CER or the CRT extension.
** .PEM = The PEM extension is used for different types of X.509v3 files which contain ASCII (Base64) armored data prefixed with a “—– BEGIN …” line.
* Extensions:
** .CRT = The CRT extension is used for certificates. The certificates may be encoded as binary DER or as ASCII PEM. The CER and CRT extensions are nearly synonymous.  Most common among *nix systems
** .CER = alternate form of .crt (Microsoft Convention) You can use MS to convert .crt to .cer (.both DER encoded .cer, or base64[PEM] encoded .cer)  The .cer file extension is also recognized by IE as a command to run a MS cryptoAPI command (specifically rundll32.exe cryptext.dll,CryptExtOpenCER) which displays a dialogue for importing and/or viewing certificate contents.
** KEY = The KEY extension is used both for public and private PKCS#8 keys. The keys may be encoded as binary DER or as ASCII PEM.
 
== Wildcard-Zertifikat ==
<pre>ROOT_CA=rootCA
VALID_DAYS=1000
CERT=vmd9593
# Schlüssel generieren, kein Passwort:
openssl genrsa -out $CERT.key 2048
openssl genrsa -out $CERT.key 2048
# Generate a CSR (Certificate Signing Request)
openssl req -new -key $CERT.key -out $CERT.csr
# Remove Passphrase from Key
cp $CERT.key $CERT.key.org
openssl rsa -in $CERT.key.org -out $CERT.key
</pre>
<pre>cat <<EOS >${CERT}_extensions
[ ${CERT}_http ]
nsCertType      = server
keyUsage        = digitalSignature,nonRepudiation,keyEncipherment
extendedKeyUsage        = serverAuth
subjectKeyIdentifier    = hash
authorityKeyIdentifier  = keyid,issuer
subjectAltName          = @${CERT}_http_subject
[ ${CERT}_http_subject ]
EOS
echo "DNS.1 www.mydomain.com" >> ${CERT}_extensions
echo "DNS.2 mydomain.com" >> ${CERT}_extensions
...
openssl x509 -req -days 730 -in ${CERT}.csr -signkey ${CERT}.key \
  -out ${CERT}.crt -extfile ${CERT}_extensions \
  -extensions ${CERT}_http
</pre>
== Erstellen CA (version 2) ==
<pre>CA_DIR=/home/ca
mkdir -p $CA_DIR ; cd $CA_DIR
mkdir {certsdb,certreqs,crl,private,newcerts}
chmod 700 private
touch index.txt
cp /etc/ssl/openssl.cnf .
$EDITOR openssl.cnf
diff /etc/ssl/openssl.cnf openssl.cnf
</pre>
<pre>< dir          = ./demoCA              # Where everything is kept
> dir          = /home/ca              # Where everything is kept
< default_days  = 365                  # how long to certify for
> default_days  = 730                  # how long to certify for
< countryName_default          = AU
> countryName_default          = DE
< stateOrProvinceName_default  = Some-State
> stateOrProvinceName_default  = Bavaria
> localityName_default  = Munich
< 0.organizationName_default    = Internet Widgits Pty Ltd
> 0.organizationName_default    = e-motional-experience.de
> commonName_default    = e-motional-experience.de
> emailAddress_default  = hamatoma@gmx.de
</pre>
== Erstellen CA ==
<pre># no challenge password
openssl req -new -newkey rsa:2048 -keyout private/cakey.pem -out careq.pem -config ./openssl.cnf
openssl ca -create_serial -out cacert.pem -days 365 -keyfile private/cakey.pem -selfsign \
  -extensions v3_ca_has_san -config ./openssl.cnf -infiles careq.pem
</pre>
== Erstellen (Version 1) ==
<pre>
openssl req -new -x509 -newkey rsa:2048 -keyout nginx.key -out nginx.pem -days 3650
</pre>


== Mit Signierung ==
# Zertifikatsanfrage generieren: CN (Common Name) evt. IP-Adresse
 
# Bei CN (Common Name) eintragen: "*.f-r-e-i.de"
<pre>
openssl req -new -key $CERT.key -out $CERT.csr -sha512 -config ./openssl.cnf
FN_CA=dockerCA
FN_CERT=hamatoma.de
cd /etc/ssl
test -d ca || mkdir ca
cd ca
openssl genrsa -out $FN_CA.key 2048
 
openssl req -x509 -new -nodes -key $FN_CA.key -days 3650 -out $FN_CA.crt
 
openssl genrsa -out $FN_CERT.key 2048
# kein Passwort vergeben!
openssl req -new -key $FN_CERT.key -out $FN_CERT.csr
 
echo "subjectAltName = IP:212.144.248.3" > extfile.cnf
openssl x509 -req -in $FN_CERT.csr -CA $FN_CA.crt -CAkey $FN_CA.key -CAcreateserial -out $FN_CERT.crt -days 3650 -extfile extfile.cnf
 
cp $FN_CERT.crt ../certs
cp $FN_CERT.key ../private
 
</pre>


== Passwort entfernen ==
# Signieren:
<pre>
openssl x509 -req -days $VALID_DAYS -in $CERT.csr -signkey ${ROOT_CA}.key -out $CERT.pem
openssl rsa -in nginx.key -out nginx.key
</pre>
</pre>
* Es wird einmal das Passwort abgefragt

Aktuelle Version vom 23. September 2015, 11:55 Uhr


Dateitypen[Bearbeiten]

  • Encodings (also used as extensions)
    • .DER = The DER extension is used for binary DER encoded certificates. These files may also bear the CER or the CRT extension.
    • .PEM = The PEM extension is used for different types of X.509v3 files which contain ASCII (Base64) armored data prefixed with a “—– BEGIN …” line.
  • Extensions:
    • .CRT = The CRT extension is used for certificates. The certificates may be encoded as binary DER or as ASCII PEM. The CER and CRT extensions are nearly synonymous. Most common among *nix systems
    • .CER = alternate form of .crt (Microsoft Convention) You can use MS to convert .crt to .cer (.both DER encoded .cer, or base64[PEM] encoded .cer) The .cer file extension is also recognized by IE as a command to run a MS cryptoAPI command (specifically rundll32.exe cryptext.dll,CryptExtOpenCER) which displays a dialogue for importing and/or viewing certificate contents.
    • KEY = The KEY extension is used both for public and private PKCS#8 keys. The keys may be encoded as binary DER or as ASCII PEM.

Wildcard-Zertifikat[Bearbeiten]

ROOT_CA=rootCA
VALID_DAYS=1000
CERT=vmd9593
# Schlüssel generieren, kein Passwort:
openssl genrsa -out $CERT.key 2048

# Zertifikatsanfrage generieren: CN (Common Name) evt. IP-Adresse
# Bei CN (Common Name) eintragen: "*.f-r-e-i.de"
openssl req -new -key $CERT.key -out $CERT.csr -sha512 -config ./openssl.cnf

# Signieren:
openssl x509 -req -days $VALID_DAYS -in $CERT.csr -signkey ${ROOT_CA}.key -out $CERT.pem
Abgerufen von „https://wiki.hamatoma.de/index.php?title=Zertifikat&oldid=541“