![]() Technically speaking, hashing takes inputs to produce a fixed-length string that has the following attributes:ġ. Hashing is also important because its purpose is to ensure integrity. To go a bit deeper, there are three algorithms that are used for encryption. To reverse the encryption operation, the ciphertext, algorithm and private key are required to return the status to plaintext. ![]() Since encryption transforms data into another format using a private key, it's easy to maintain its integrity by keeping the key in a safe place outside of accessible means. "I find that out of the three listed encryption is probably one of the most important to a company's security and network infrastructure. This shows the interviewer that you listen carefully, and are detail oriented in your response. Example: Encoding, Encryption, then Hashing. Always respond with answers in the exact order the questions were asked. They want to evaluate your mental processing capabilities, and how you compile and respond to information. It's easy to see why the hiring manager is asking this three-part question. ![]() The operation with hashing is one-way (non-reversible), and the output is a fixed length with a much smaller input. Encryption is designed primarily for confidentiality and is also reversible only if you have the appropriate key/keys. It can be easily reversed by employing the same algorithm that encoded the content in the first place. You don't have to go into great detail on each and every one, but you do have to give a basic definition, and example of how they work in a security environment, and their distinct differences.Īt the high level, encoding is designed to protect the integrity of data as it flows through networks and systems, while maintaining its primary security functions. Let's walk through each of these, so there's a good understanding of the best way to respond to this question.
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