Types of data encryption and decryption

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You can trust DataShield with your confidential information whether the project is large or small, paper or hard drives, they handle it all with a professional and knowledgeable staff. DataShield has all necessary controls in place, so we can be confident that our private information is being properly disposed of.

From pulverizing paper to shredding hard drives and other media they meet all of our information destruction needs. What is data encryption? Hashing creates a unique, fixed-length signature for a message or data set.

Once data is encrypted using hashing, it cannot be reversed or deciphered. Symmetric encryption methods , also known as private-key cryptography, earned its name because the key used to encrypt and decrypt the message must remain secure. Anyone with access to the key can decrypt the data. Using this method, a sender encrypts the data with one key, sends the data the ciphertext , and then the receiver uses the key to decrypt the data. One of the keys is typically known as the private key and the other is known as the public key.

The private key is kept secret by the owner and the public key is either shared amongst authorised recipients or made available to the public at large. Data can therefore be transferred without the risk of unauthorised or unlawful access to the data. Figure 3: Asymmetric encryption — Using a different key for the encryption and decryption process. Hashing is a technique that generates a fixed length value summarising a file or message contents.

It is often incorrectly referred to as an encryption method. Hash functions are used with cryptography to provide digital signatures and integrity controls but as no secret key is used it does not make the message private as the hash can be recreated.

But the person who sent it and who sent it have Public Key Encryption. With which they decrypt that message or information again, and read it. Now yzw reading this where you are going to know that it is written bad. And this is a simple conversion while the encryption machine makes it even more complicated than this.

Which makes it impossible to understand. You can understand more well from the image given below. Public key encryption is also a type of encryption.

And nowadays only public key encryption is used in almost all social media emails, messages, chat, whatsapp, then friends, there are two types of keys in this encryption. Private Key — Only you have. Public Key — which all people have.

Now if we want to send a private message to a friend that only both of us can read. So for that we have to encrypt the sms, how do they understand, for example. So I will lock that sms with his public key which I have with everyone.

And then send it to my friend and when that message reaches him so he will unlock it with his private key which he only has and will easily read the message. A message locked with a public key can only be opened with a private key.