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May 9, 2024 15:17
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**Disclaimer**: This is an incredibly simplified description of the process; some statements may exaggerate or distort certain aspects for illustrative purposes. The mentioned mathematical guarantees might vary in strength, from absolute impossibility to computational complexity, but these simplifications aim to convey the core idea clearly. | |
Asymmetric Encryption: A clever cryptographic method where you have two keys with distinct roles - one locks (encrypts) data, and the other unlocks (decrypts) it. Think of these keys as numbers linked by special mathematical rules, generated together yet serving different purposes. One key, known as the private key, remains your closely guarded secret; it's used to decrypt your confidential data. On the other hand, the public key is like a lock that many people can use to insert messages but only unlocks with your private key. You safely share this public key far and wide because it doesn't reveal anything about your private key. Anyone wanting to send you a secure message encrypts it with your public key, ensuring only you, the holder of the matching private key, can unlock and read its contents. This back-and-forth is the beauty of algorithms like RSA, providing mathematical assurances for secure communication. | |
Imagine an infinite field filled with magical mailboxes enhanced with notification systems and teleportation capabilities. Each mailbox has a unique number, allowing instant teleportation to any box by simply knowing its identifier. This fantastical land serves as our msg-fs server – a secure publication platform for participants' encrypted data. All other actions occur on users' devices; this enchanted landscape merely facilitates lightning-fast, secure interactions between them. | |
Here's a step-by-step breakdown: | |
1. Choose your Key Pair: Each user selects an RSA key pair and commits the generation process to memory (recovery phrase). Since keys are numeric, you can perform cryptographic wizardry by computing another number dependent on these keys without divulging them - almost like a hash function trick. With this unique identifier, teleport to the corresponding mailbox and deposit some initial encrypted data about yourself, secured with your public key. Set up notifications for future messages arriving at this box. | |
2. Go Public: Bravely share your public key and mailbox number far and wide – think of it as an ad in a newspaper or even a daring WhatsApp message sent without genuine security assurances aside from the word of some dude (recall his suspicious silence when asked if he's a lizard or a person). Anyone intrigued by your advertisement can now teleport to your mailbox, leaving encrypted messages that include their public keys and mailbox numbers. | |
3. Reply and Chat: When a message arrives in your magical mailbox, only you, holding the matching private key, can unlock and read its secrets. Replying is effortless since you know the sender's mailbox number from their initial missive. More intricate group conversations and communication dynamics are seamlessly woven into this foundation within client software. Each participant receives tailored notifications for messages directed specifically at them through these enchanted mailboxes. | |
In summary, with key pairs and magical mailboxes (our msg-fs server), users unlock a seamless pathway to secure, private interactions, unburdened by concerns of snooping or prying eyes. It's as if privacy and security are assured by mathematical enchantments and the trusty mechanisms of teleporting mailboxes! |
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