Unable to launch Idash Admin tool after Java 8 update

Products

• iDash Workload Automation

Issue/Introduction

 When we try to launch the Admin tool we get the following error.

 

CacheEntry[https://hostname.com:8000/idash/AdminTool.jnlp]: updateAvailable=true,lastModified=Fri Feb 11 16:17:00 EST 2022,length=3427
#### Java Web Start Error:
#### Unsigned application requesting unrestricted access to system
Unsigned resource: https://hostname.com:8000/idash/encr.jar

Environment

Release:

iDash 12.1.02

JRE release 1.8.0.351 and up

Cause

 The issue is that the upgrade package of JRE 1.8.0.351 and higher has disabled SHA-1 Signed JARs. 

Resolution

 

Please follow the steps below:

Modify the java.security file  As Administrator edit "C:\Program Files (x86)\Java\jre1.8.0_351\lib\security\java.security"  Then search for the following lines:

jdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024, \
      DSA keySize < 1024, include jdk.disabled.namedCurves, \
      SHA1 denyAfter 2019-01-01

 

Next comment out the "SHA1 denyAfter 2019-01-01" line, and also remove the ", \" on the preceding line. So should look like this:

jdk.jar.disabledAlgorithms=MD2, MD5, RSA keySize < 1024, \
      DSA keySize < 1024, include jdk.disabled.namedCurves
#      SHA1 denyAfter 2019-01-01

Save and re-launch jnlp.