blka/certificate-ripper

🔐 A CLI tool to extract server certificates

Certificate Ripper 🔐

A CLI tool to extract server certificates

Demo

Advantages

• It is fast
• Easy to use
• No openssl required
• Runs on any Operating System
• Can be used with or without Java, native executables are present in the releases
• Extracts all the sub-fields of the certificate
• Certificates can be formatted to PEM format
• Bulk extraction of multiple different urls with a single command is possible
• Extracted certificates can be stored automatically into a p12 truststore
• Works also behind a proxy

Installing & Usage

Mac OS X - Homebrew 🍺

brew tap hakky54/crip
brew install crip
crip print --url=https://stackoverflow.com/

Windows

1. Download the latest binary here: Releases
2. Extract the compressed file
3. Start cmd and cd to the extracted file
4. Run start /b "" "crip.exe" print --url=https://stackoverflow.com/

Linux

From Source

1. Download the latest binary here: Releases
2. Extract the compressed file
3. Add the reference to your environment variables: export CRIP_HOME=/path/to/crip/binary
4. Run crip print --url=https://stackoverflow.com/

Contributed/Unofficial Installation Methods

Arch-Linux (AUR)

1. Install the certificate-ripper-bin AUR package
2. Run crip print --url=https://stackoverflow.com/

Using Executable JAR

Minimum requirements:

1. Java 8
2. A terminal

Setup

1. Download the latest JAR here: Releases
2. Run it with java -jar crip.jar print --url=https://youtube.com/

CLI Options

Usage: crip [COMMAND]
Commands:
  print             Prints the extracted certificates to the console
  export pkcs12     Export the extracted certificate to a PKCS12/p12 type truststore
  export der        Export the extracted certificate to a binary form also known as DER
  export pem        Export the extracted certificate to a base64 encoded string also known as PEM
  
Usage: crip print
Prints the extracted certificates to the console
  -f, --format              To be printed certificate format. This option is not required. Default is human-readable.
  -u, --url                 Url of the target server to extract the certificates. Can be provided multiple times.

Usage: crip export pkcs12
Export the extracted certificate to a PKCS12/p12 type truststore
  -p, --password            TrustStore password. This option is not required. Default is changeit.
  -u, --url                 Url of the target server to extract the certificates. Can be provided multiple times.
  -d, --destination         Destination of the to be stored file. Default is current directory if none is provided.
      
Usage: crip export der
Export the extracted certificate to a binary form also known as DER
  -u, --url                 Url of the target server to extract the certificates. Can be provided multiple times.
  -c, --combined            Indicator to either combine all of the certificate into one file for a given url or export into individual files.
  -d, --destination         Destination of the to be stored file. Default is current directory if none is provided.

Usage: crip export pem
Export the extracted certificate to a base64 encoded string also known as PEM
  -u, --url                 Url of the target server to extract the certificates. Can be provided multiple times.
  -c, --combined            Indicator to either combine all of the certificate into one file for a given url or export into individual files.
  -d, --destination         Destination of the to be stored file. Default is current directory if none is provided.
      
Proxy options applicable for all commands
      --proxy-host          Proxy host
      --proxy-port          Proxy port
      --proxy-password      Password for authenticating the user for the given proxy
      --proxy-user          User for authenticating the user for the given proxy

Example usages

Single export

crip export pkcs12 -u=https://github.com

Bulk export

crip export pkcs12 \
-u=https://youtube.com \
-u=https://github.com \
-u=https://stackoverflow.com \
-u=https://facebook.com

Specify custom truststore destination path

crip export pkcs12 -u=https://github.com -d=/path/to/directory

Print in human-readable format

crip print -u=https://github.com

Print in PEM format

crip print -u=https://github.com -f=pem

Batch print in PEM format

crip print -f=pem \
-u=https://youtube.com \
-u=https://github.com \
-u=https://stackoverflow.com \
-u=https://facebook.com

Extracting behind a proxy

crip print -u=https://stackoverflow.com --proxy-host=my-host.com --proxy-port=1234 --proxy-user=foo --proxy-password

Combining certificates

crip export pem -u=https://github.com --combined=true

Defining custom file name

Works only with the combined option while only specifying a single url.

crip export pem -u=https://github.com --combined=true --destionation=/path/to/export/github-chain.crt

Contributing

There are plenty of ways to contribute to this project:

• Give it a star
• Share it with a
• Submit a PR