Install libbcmail-java by entering the following commands in the terminal:
sudo apt update sudo apt install libbcmail-java
Description:
Bouncy Castle generators/processors for S/MIME and CMS
The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. . This package contains generators and processors for S/MIME and CMS (PKCS7/RFC 3852).
Homepage: http://www.bouncycastle.org
Version: 1.59-1
Section: universe/libs