Question

Discuss the impact of key lengths on short, medium, and long-term security and why one should only use well-esteablished encryption algorithms.

Answer 1

Before knowing the impact of key length on short, medium and Long-term security,it is necessary for us to know what does key length actually means?

Key length is equal to the number of bits in an encryption algorithm’s key. A short key length means poor security. However, a long key length does not necessarily mean good security. The key length determines the maximum number of combinations required to break an encryption algorithm.

Now we can put a simple logic that it we have more number of bits then we have more number of combinations.

If a key is n bits long, then there are two to the nth power (2n) possible keys. For example, if the key is one bit long, and that one bit can either be a zero or a one, there are only two possible keys, 0 or 1. However, if the key length is 40 bits long, then there are 2^40 possible keys.

This term is also known as key size.

Short term and medium term securites are used where we create small network so that we can create new network again when we needed. For exam in gaming system we create lan network for establishing connection between multiple devices.There we can use short key lengths password.

But in case of big networks like banking network, industrial network, telephone commination network it is necessary to use long key length password for better securites.

Why one should use well established encryption algorithm-

1.Complete data protection- A well established encryption algorithm provides complete data security. The most important thing in IT sector is data which decides the benefits of firm.To avoid data breach,it is mandatory to implement well established encryption algorithm.

2.Security across multiple devices- Sometimes hacker hacks devices to control adminstration, encryption algorithms can be also used to protect devices.

3.Move data securely- Moving data securely is one of the most important task.An effective encryption solution helps to ensure that data is protected at all times, at rest and in motion. Files that are shared or uploaded to cloud systems should be to ensure that the files remain safe throughout the transport process.

4.Encryption allows you to secure your remote devices-Encryption algorithm helps you to secure your devices remotely. You can apply these algorithms remotely.

5. Helps in gaining trust-​ A well established encryption algorithms helps you to build customer trust in organisation.

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