how to do load test for encrypted application using Jmeter, where the application is encrypted across all pages? The application is developed in angular JS technology.
encrypted you mean SSL or TLS then you don't even need to do anything, according to SSL Encryption chapter of the JMeter documentation
The JMeter HTTP samplers are configured to accept all certificates, whether trusted or not, regardless of validity periods, etc. This is to allow the maximum flexibility in testing servers.
If the server requires a client certificate, this can be provided.
There is also the SSL Manager, for greater control of certificates.