Binary package “libjbigi-jni” in ubuntu focal

Invisible Internet Project (I2P) - libjbigi library

 This Package contains the libjbigi JNI library (and on x86 platforms, jcpuid).
 libjbigi is a math library that is part of the I2P installation. Use of this
 library greatly enhances the efficiency of cryptographic algorithms, such as
 the ones used by I2P. You can expect to see a 5-7x speed improvement on certain
 tasks, such as elGamal encryption/decryption.