README.md

PrintCertificate

Open source library for printing X.509 certificate content

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This library provides a a class that extends the Bouncycastle X509CertificateHolder class with extended printing capblities.

The output formats offered by this library are:

• Text based print (optimized for monospace or regular fonts)
• Html based print (with customizable css)
• PEM certificate format

This library is used to provide HTML representation of certificates in the Sweden Connect certificate parser application at https://sandbox.swedenconnect.se/cap

Maven

The print-cert artifacts are published to Maven central.

Include the following snippet in your Maven POM to add print-cert as a dependency for your project.

<dependency>
  <groupId>se.idsec.utils</groupId>
  <artifactId>print-cert</artifactId>
  <version>${print-cert.version}</version>
</dependency>

Usage

Instantiate the class se.idsec.utils.printcert.PrintCertificate by any of its constructors;

From byte:

byte[] certBytes = ...;
PrintCertificate printCert = new PrintCertificate(certBytes);

From X509Certificate:

X509Certificate x509Certificate = ...;
PrintCertificate printCert = new PrintCertificate(x509Certificate);

From X509CertificateHolder:

X509CertificateHolder x509CertificateHolder = ...;
PrintCertificate printCert = new PrintCertificate(x509CertificateHolder);

The PrintCertificate objects offers print capabilities using the functions:

• toString() - for text based output
• toHtml() - for html based output
• toPEM() - for a formatted PEM certificate
• toOriginalString() - for the original X509Certificate toString() output

See javadoc for optional parameters.

Example CSS

Example css is provided in the css folder.

Examples

HTML print example

Text print example (monospace)

X.509 Certificate {
Version         : 3
Serial number   : fc44c9312f19db5a4f3c45191d1169cd
Issuer          :
        Country: SE
        Organization: IDsec Solutions AB
        organization Unit: Dev
        Organization ID: 1234567890
        Common Name: Test CA

Not valid before: Wed Apr 28 14:33:15 CEST 2021
Not valid after : Fri Apr 28 14:53:15 CEST 2023
Subject         :
        Country: SE
        Organization: IDsec Solutions AB
        organization Unit: The unit
        Common Name: John Doe

Public Key      : EC Public Key [0d:22:db:b9:cf:3b:fd:21:90:77:75:74:ca:8c:9c:fc:ef:8f:d7:18]
X               : ded5519dd0381b62ae3c30724f8455eafdb64ee50e5a7ccedb085c2694318b72
Y               : fffda5182d597583f945a61826eb4ec81c9b43407b81f092a9fee4345e915d77
SHA1 Fingerprint: 89:38:12:7e:c4:0d:6d:3c:da:52:e7:7a:2c:5f:76:fe:f5:a1:01:ae

Extension 1:   not critical   Basic Constraints (2.5.29.19)
  CA: false

Extension 2:   not critical   Authority Key Identifier (2.5.29.35)
  Key identifier: 9e:55:61:ea:27:7d:45:f6:4d:80:0e:22:16:02:77:75:e9:69:a6:1e:d7:3e:fe:8d:98:2d:d1:18:bb:2d:52:0c

Extension 3:   not critical   Subject Key Identifier (2.5.29.14)
  Key identifier: e2:67:11:4f:14:4c:44:7d:b6:41:4d:c7:d4:1f:dd:4b:d5:3d:46:3c:29:68:f0:b5:de:c5:55:1f:80:b8:01:f7

Extension 4:   critical   Key Usage (2.5.29.15)
  Usage: digitalSignature | keyEncipherment

Extension 5:   not critical   CRL Distribution Point (2.5.29.31)
  DistributionPoint[0]: URI: https://test-qa.ca.edelivery.digg.se/ca/crl/apca01.crl

Extension 6:   not critical   Authority Info Access (1.3.6.1.5.5.7.1.1)
  accessMethod[0] : ocsp
    accessLocation: URI: https://test-qa.ca.edelivery.digg.se/ca/ocsp/apca01

Extension 7:   not critical   Certificate Policies (2.5.29.32)
  certificatePolicy[0]: 1.2.752.201.2.1.100.1

Certificate Signature:
Algorithm: SHA256WITHRSA

}

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Copyright © 2021-2023, IDsec Solutions. Licensed under version 2.0 of the Apache License.