Question

The process of encrypting a secret key
with the receiver's public key is callled​

Answer 1

Answer:

I think

This is known as Public Key Encryption.

Answer 2

Answer:

Public Key Encryption

Explanation:

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Public Key Encryption

Last Updated: 29-05-2020

When the two parties communicate to each other to transfer the intelligible or sensible message, referred to as plaintext, is converted into apparently random nonsense for security purpose referred to as ciphertext.

The process of changing the plaintext into the ciphertext is referred to as encryption.

The encryption process consists of an algorithm and a key. The key is a value independent of the plaintext.

Once the ciphertext is produced, it may be transmitted.

The security of conventional encryption depends on the major two factors:

The Encryption algorithm

Secrecy of the key

The algorithm will produce a different output depending on the specific key being used at the time. Changing the key changes the output of the algorithm.

Once the ciphertext is produced, it may be transmitted. Upon reception, the ciphertext can be transformed back to the original plaintext by using a decryption algorithm and the same key that was used for encryption.

Decryption:

The process of changing the ciphertext to the plaintext that process is known as decryption.

Asymmetric is a form of Cryptosystem in which encryption and decryption are performed using different keys-Public key (known to everyone) and Private key (Secret key). This is known as Public Key Encryption.

Characteristics of Public Encryption key:

Public key Encryption is important because it is infeasible to determine the decryption key given only the knowledge of the cryptographic algorithm and encryption key.

Either of the two key (Public and Private key) can be used for encryption with other key used for decryption.

Due to Public key cryptosystem, public keys can be freely shared, allowing users an easy and convenient method for encrypting content and verifying digital signatures, and private keys can be kept secret, ensuring only the owners of the private keys can decrypt content and create digital signatures.

The most widely used public-key cryptosystem is RSA (Rivest–Shamir–Adleman). The difficulty of finding the prime factors of a composite number is the backbone of RSA.

Example:

Public keys of every user are present in the Public key Register. If B wants to send a confidential message to C, then B encrypt the message using C Public key. When C receives the message from B then C can decrypt it using its own Private key. No other recipient other than C can decrypt the message because only C know C’s private key.