Common Java Keytool Keystore Commands

Java Keytool Commands for Creating and Importing keystore files:

These commands allow you to generate a new Java Keytool keystore file, create a CSR, and import certificates. Any root or intermediate certificates will need to be imported before importing the primary certificate for your domain.

Generate a Java keystore and key pair

keytool -genkey -alias mydomain -keyalg RSA -keystore keystore.jks  -keysize 2048

Generate a certificate signing request (CSR) for an existing Java keystore

keytool -certreq -alias mydomain -keystore keystore.jks -file mydomain.csr

Import a root or intermediate CA certificate to an existing Java keystore

keytool -import -trustcacerts -alias root -file Thawte.crt -keystore keystore.jks

Import a signed primary certificate to an existing Java keystore

keytool -import -trustcacerts -alias mydomain -file mydomain.crt -keystore keystore.jks

Generate a keystore and self-signed certificate

keytool -genkey -keyalg RSA -alias selfsigned -keystore keystore.jks -storepass password -validity 360 -keysize 2048

Java Keytool Commands for Validation of Keys

If you need to check the information within a certificate, or Java keystore, use these commands.

Check a stand-alone certificate

keytool -printcert -v -file mydomain.crt

Check which certificates are in a Java keystore

keytool -list -v -keystore keystore.jks

Check a particular keystore entry using an alias

keytool -list -v -keystore keystore.jks -alias mydomain

Other Useful Java Keytool Commands

Delete a certificate from a Java Keytool keystore

keytool -delete -alias mydomain -keystore keystore.jks

Change a Java keystore password

keytool -storepasswd -new new_storepass -keystore keystore.jks

Export a certificate from a keystore

keytool -export -alias mydomain -file mydomain.crt -keystore keystore.jks

List Trusted CA Certs

keytool -list -v -keystore $JAVA_HOME/jre/lib/security/cacerts

Import New CA into Trusted Certs

keytool -import -trustcacerts -file /path/to/ca/ca.pem -alias CA_ALIAS -keystore $JAVA_HOME/jre/lib/security/cacerts

Import PFX file into java keystore

keytool.exe -importkeystore -srckeystore winkey.pfx -srcstoretype pkcs12 -destkeystore winserver.keystore -deststoretype JKS

Convert PFX Certificate to JKS, P12, CRT for Java Keystore

 all you need is OpenSSL and Java 7+!

First, let's generate a key from the PFX file; this key is later used for p12 keystore.

openssl pkcs12 -in example.pfx -nocerts -out example.key  

Second command is almost the same, but it is about nokey and a crt this time to export the Certificates:

openssl pkcs12 -in example.pfx -clcerts -nokeys -out example.crt  

Now, we have a key and and a crt file. The next step is to create a truststore, like so:

​keytool -import -file example.crt -alias exampleCA -keystore truststore.jks

For the question: "Do you trust this certificate?" answer "yes," so it is then added in the truststore.

If you only need a truststore, you can stop here.

The last step is to create a keystore, like so:

openssl pkcs12 -export -in example.crt -inkey example.key -certfile example.crt -name "examplecert" -out keystore.p12

​This p12 keystore is enough in many cases. However, if you still need a JKS keystore, you need one additional command:

keytool -importkeystore -srckeystore keystore.p12 -srcstoretype pkcs12 -destkeystore keystore.jks -deststoretype JKS

​

SSLsplit 0.4.5

SSLsplit is a tool for man-in-the-middle attacks against SSL/TLS encrypted network connections. Connections are transparently intercepted through a network address translation engine and redirected to SSLsplit. SSLsplit terminates SSL/TLS and initiates a new SSL/TLS connection to the original destination address, while logging all data transmitted. SSLsplit is intended to be useful for network forensics and penetration testing.

Changes: This maintenance release fixes a number of bugs, including daemon mode issues related to threading and a problem in the Linux netfilter support. It adds support for 2048-bit and 4096-bit Diffie-Hellman. 

Download:- SSLsplit 0.4.5

Useful OPENSSL Commands

Below are some of very usefull OPENSSL Commands.

Generate a certificate signing request based on an existing x509 certificate
openssl x509 -x509toreq -in MYCRT.crt -out MYCSR.csr -signkey MYKEY.key

Generate a certificate siging request for an existing private key
openssl req -out MYCSR.csr -key MYKEY.key -new

Create self-signed certificate (can be used to sign other certificates)
openssl req -x509 -new -out MYCERT.crt -keyout MYKEY.key -days 365

Generate a new private key and matching Certificate Signing Request (eg to send to a commercial CA)
openssl req -out MYCSR.csr -pubkey -new -keyout MYKEY.key
add -nodes to create an unencrypted private key
add -config <//openssl.cnf><//openssl.cnf></ openssl.cnf=""><//><//openssl.cnf></ openssl.cnf=""><//></ openssl.cnf=""><//></><//><//openssl.cnf></ openssl.cnf=""><//></ openssl.cnf=""><//></><//></ openssl.cnf=""><//></><//></><//></><//>if your config file has not been set in the environment

Decrypt private key
openssl rsa -in MYKEY.key >> MYKEY-NOCRYPT.key

Sign a Certificate Signing Request
openssl x509 -req -in MYCSR.csr -CA MY-CA-CERT.crt -CAkey MY-CA-KEY.key -CAcreateserial -out MYCERT.crt -days 365
-days has to be less than the validity of the CA certificate

Convert DER (.crt .cer .der) to PEM
openssl x509 -inform der -in MYCERT.cer -out MYCERT.pem

Convert PEM to DER
openssl x509 -outform der -in MYCERT.pem -out MYCERT.der

Convert PKCS#12 (.pfx .p12) to PEM containing both private key and certificates
openssl pkcs12 -in KEYSTORE.pfx -out KEYSTORE.pem -nodes
add -nocerts for private key only; add -nokeys for certificates only

Convert (add) a seperate key and certificate to a new keystore of type PKCS#12
openssl pkcs12 -export -in MYCERT.crt -inkey MYKEY.key -out KEYSTORE.p12 -name "tomcat"

Convert (add) a seperate key and certificate to a new keystore of type PKCS#12 for use with a server that should send the chain too (eg Tomcat)
openssl pkcs12 -export -in MYCERT.crt -inkey MYKEY.key -out KEYSTORE.p12 -name "tomcat" -CAfile MY-CA-CERT.crt -caname myCA -chain
you can repeat the combination of "-CAfile" and "-caname" for each intermediate certificate

Extracting Certificate and Private Key Files from a .pfx File

Run the following command to export the private key:
openssl pkcs12 -in certname.pfx -nocerts -out key.pem -nodes
Run the following command to export the certificate:
openssl pkcs12 -in certname.pfx -nokeys -out cert.pem
Run the following command to remove the passphrase from the private key:
openssl rsa -in key.pem -out server.key  

Check a private key
openssl rsa -in MYKEY.key -check
add -noout to not disclose the key

Check a Certificate Signing Request
openssl req -text -noout -verify -in MYCSR.csr

Check a certificate
openssl x509 -in MYCERT.crt -text -noout

Check a PKCS#12 keystore
openssl pkcs12 -info -in KEYSTORE.p12

Check a trust chain of a certificate
openssl verify -CAfile MYCHAINFILE.pem -verbose MYCERT.crt
trust chain is in directory (hash format): replace -CAfile with -CApath /path/to/CAchainDir/
to check for server usage: -purpose sslserver
to check for client usage: -purpose sslient