Asymmetric Encryption

Asymmetric encryption, also known as public-key cryptography, is a cryptographic technique that uses a pair of keys, a public key and a private key, for securing data. Unlike symmetric encryption, where the same key is used for both encryption and decryption, asymmetric encryption uses two distinct keys with different roles.

image depicting asymmetric encryption
image depicting asymmetric encryption

Basic Use:

  1. Key Pair Generation: In asymmetric encryption, a user or entity generates a key pair consisting of a public key and a private key. These keys are mathematically related but cannot be derived from each other. The private key is kept secret, while the public key is shared openly.
  2. Encryption: Data that needs to be securely transmitted or stored is encrypted using the recipient’s public key. When data is encrypted with the public key, it can only be decrypted by the corresponding private key, which is held by the recipient.
  3. Decryption: The recipient uses their private key to decrypt the encrypted data. Asymmetric encryption ensures that only the holder of the private key can access the original data.
  4. Digital Signatures: Asymmetric encryption is used to create digital signatures. A sender can sign a message or document with their private key, and the recipient can verify the signature using the sender’s public key. This process ensures the authenticity and integrity of the message.

Key Applications:



Asymmetric encryption is a fundamental component of modern cryptography, providing a robust means of securing data, enabling secure communication, and ensuring the authenticity of digital information.


Asymetric Encryption

Public and Private Keys

Asymmetric Encryption Demo