Encryption Keys[Back] Most programming language can only deal with 64bit integers. If we need to deal with larger ones, we need to use additional libraries, such as Bouncy Castle, where we can declare Big Integers, such as: Org.BouncyCastle.Math.BigInteger b = new Org.BouncyCastle.Math.BigInteger("2"); Using this code, this program uses Bouncy Castle to calculate the number of keys for various key sizes:
