fuzzer and fuzzing

Fuzzer is called  to application used at fuzzing process. And fuzzing is process or method used to find out a logic error and failure in a data processing applications by providing an abnormal input into an application and see the same practice and learn how to handle the exception that there.

A fuzzer basically works by sending data simultaneously and repeatedly either automatically or semi-automatic into a software for processing. Data which is input data which is usually not normal, but the data that are made specifically, such as using special characters or has the number / length of data that is not normal.

There are two kinds of Fuzzer based on the workings :

• Mutation-based fuzzer, works by utilizing the sample data that has gone before.
• Generation-based fuzzer, work from the start, by making the data model in accordance with the application to be tested, whether the application uses a data input-based protocol or filetype-based.

Application fuzzer itself has been much made ​​for a wide range of interests. ranging from commercial fuzzer to opensource fuzzer has much to enliven the fuzzing world. 
In the world of open source fuzzer, many fuzzer framework known as:

• Peach 
• spike 
• JBozz 
• Bed, etc

Fuzzer the best are the fuzzer that is made by the person who will perform fuzzing because it works according to the environment and the needs of people who will do the fuzzing