Azure Integration Services, Nutshell Series, Technology and tricks

Symmetric vs Asymmetric Encryption

Manjunath

Symmetric Encryption

  • Key: Shared between sender and receiver.
  • Encryption: Sender encrypts using key, creating ciphertext.
  • Example: AES encryption.
  • Advantages: Faster, suitable for large data.
  • Disadvantages: Key distribution challenge, security compromised if key is leaked.

Asymmetric Encryption

  • Keys: Public for encryption, private for decryption.
  • Encryption: Sender uses recipient’s public key.
  • Decryption: Recipient uses private key.
  • Digital Signature: Sender signs with private key.
  • Verification: Recipient verifies with sender’s public key.
  • Advantages: No shared key needed; public keys distributable via CA (certificate Authority).
  • Disadvantages: Slower, computationally intensive.

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