RSAXML2PEM (XML TO PEM CONVERTING)

Java utility for converting xml rsa key (private/public) to pem key. Based on good article and code by Matouš Borák http://www.platanus.cz/blog/converting-rsa-xml-key-to-pem

NOTE

This is a fork of https://github.com/perf2k2/rsaxml2pem. Thanks to perf2k2. The goal is to make rsaxml2pem compatible with JRE 11.

Example keys

XML key:

<RSAKeyValue>
  <Modulus>wzZYQpFhIItfo5...3CZXgAyOc+w==</Modulus>
  <Exponent>AQAB</Exponent>
  <P>+hhxh9KjXvS...vWL47IlE=</P>
  <Q>x9IxFrOIpj...z3eGi4s=</Q>
  <DP>Dp2bFOr0...26/SWOE=</DP>
  <DQ>oAKxTHx3...zMbn+Tq9gw==</DQ>
  <InverseQ>RapfQxpRbPa...q80Vcl9Pc=</InverseQ>
  <D>A9q412ejcU8PL...WJ1xnKcUWzwQ==</D>
</RSAKeyValue>

PEM key:

-----BEGIN PRIVATE KEY-----
MIIBUwIBADANBgkqhkiG9w0BAQEFAASCAT0wggE5AgEAAkEAwzZYQpFhIItfo5Z9
Ns7HHYWzqRel/OUK2XGyv8qBoZBWxd3DOiPbczbwDtOZDy8c0NejmEcbmk+3CZXg
AyOc+wIDAQABAkAD2rjXZ6NxTw8uXbRPNrn7vT4U4qCmY6dZL8OFwevZUsVhpsNM
wmH62l/5Le4zd66atsRohK1+hYnXGcpxRbPBAiEA+hhxh9KjXvS6x1SyB6C2QHrI
gVyxWmmIVJdvWL47IlECIQDH0jEWs4imMNzvcViwab9GsZVwt5x6hgoufILPd4aL
iwIgDp2bFOr0bTo0KC4E8Xks7Xu/d//oxXXhZ8Ap26/SWOECIACgArFMfHfwnTBO
jXV3zzZcZdhFasLjWnLMxuf5Or2DAiBFql9DGlFs9o3f/06UNlFAbQcERTnv13Q1
WrzRVyX09w==
-----END PRIVATE KEY-----

How to use

First of all you need to install JRE 11+ (Java Runtime Environment). After that download the executable JAR is under target folder. To start the jar:

java -jar target/public-rsaxml2pem-0.1.jar <file>

where <file> - path to xml file for convert.

For example:

java -jar target/public-rsaxml2pem-0.1.jar /home/user/keys/rsa_2048_public_key.xml

License

MIT