Using EVP api in fips mode (openssl3.0)

[Manish Patidar <mann.patidar@xxxxxxxxx>]

Hi

Can any guide me how to use fips api in openssl?

I try to use like below but it always returns null. 

ctx = EVP_CIPHER_CTX_new() ;

ciph = EVP_CIPHER_fetch(NULL, "aes-128-cbc", "fips=yes") ;

I am doubting fips provider is not loaded.  

Regards 

Manish