Bulk Encryption VS MicroEncryption – MicroTokenization Processes
http://cloudcomputingtopics.com/2013/05/bulk-encryption-vs-microencryption-microtokenization-processes/

As all will agree, secure and reliable encryption schemes are essential to secure sensitive information held by individuals, entities, organizations and governments. It’s needed to guarantee we are protected against potential cyber threats. There are several schemas to consider. The first piece to the puzzle is the encryption portion. The AES algorithm-based bulk encryption technique is what is used by most today. This typically constitutes a symmetric block cipher with 128-bit, 192-bit and 256-bit cipher keys. Information security being critical, securing sensitive data as well as our cyber infrastructure has never been more important. Today the continuing trend must be to secure sensitive data throughout all of its uses. This ranges from communications, transactions, personal accessible data, financial, health, marketing, consumable data, to archived data storage. The unauthorized access to intercepted transmissions as well as gain unauthorized access can result in the compromise of sensitive and vital information falling into the wrong hands. Data and security officers around the globe are facing an ongoing challenge; how to safely store data securely while still being able to access it quickly. Up until now Encryption combined with firewalls was the most effective solution for protecting this valuable data and other informational assets against attacks. Some Tokenization is also used for data up to 17 characters, digits, or numbers. For more information on MicroEncryption™ and MicroTokenization™ please see www.transcertain.com or www.certainsafe.com