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Elliptic Curve Cryptography (ECC)

A cryptographic technique that provides strong security with smaller key sizes.

Understanding ECC


ECC is based on the mathematics of elliptic curves over finite fields. Unlike traditional encryption methods that rely on prime factorization (RSA), ECC uses discrete logarithms on elliptic curves, making it significantly harder to break with brute force attacks while requiring smaller key sizes.

Key Features of ECC


  1. Stronger Security with Shorter Keys – A 256-bit ECC key is equivalent to a 3072-bit RSA key.

  2. Faster Computation & Lower Power Consumption – Ideal for mobile and embedded devices.

  3. Used in Secure Transactions – Common in TLS, SSL, and blockchain-based cryptography.

  4. More Resistant to Quantum Attacks – Compared to RSA and DSA.

Challenges and Considerations


  • Complex Implementation – ECC requires specialized cryptographic knowledge.

  • Side-Channel Attacks – Vulnerable to timing and power analysis attacks.

  • Quantum Threats – Post-quantum cryptography may replace ECC in the future.

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