Web 3 Tech Series: Unlocking Public & Secret Keys in Cryptography 🔑

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In the last video about symmetric encryptions, we discussed how Alice and Bob can establish a communication protocol that preserves confidentiality and integrity. This requires having shared secret keys and the use of a combination of symmetric encryption and hashing algorithms.

But how can they establish a shared secret key to begin with if they have never met in person? This is where Public Key Cryptography comes in. The use of Secret and Public Keys are critical in blockchain applications, SSL certificates and more!

If you are interested to find out more about the math behind these one-way trapdoor boxes, check out these links:

- RSA: https://brilliant.org/wiki/rsa-encryption/
- Elgamal Encryption System / Diffie Hellman Protocol: https://youtu.be/OchSgTqYtMM