Some systems are very slow and difficult to install and link with other systems.
Experts believe that spending in this area will increase even though problems remain. The public key is stored in a central place and is used by the sender to encode messages that are sent to the recipient. The private key is stored on the recipient's computer and is used to decode messages. According to Thomas O. Wells, chief executive officer and president of b4partner, Inc., a Florida-based firm that provides proprietary systems for the financial services industry and its customers, as well as major corporations, small businesses and consumers, the PKI system has proved nearly unbreakable and is considered the best way to prevent hackers and others from stealing data. The reverse of the process allows two parties to use their keys to create digital signatures.