LibTomMath : A portable number theoretic multiple-precision integer library (用于密码学的大整数库)

How to install tommath library in RHEL-Red Hat/Fedora Linux?

A free open source portable number theoretic multiple-precision integer library written entirely in C. (phew!). The library is designed to provide a simple to work with API that provides fairly efficient routines that build out of the box without configuration.(as described by yum info)

Let’s first search for the package

 $ yum search tommath
libtommath.i686 : A portable number theoretic multiple-precision integer library

Note that you must be the root/administrator to install the package. To install this package in Red Hat/Fedora Linux.

 $ yum install libtommath.i686 

You can check the details of this package tommath

$ yum info libtommath.i686

 the original link:  http://joysofprogramming.com/install-tommath-fedora-rhel/