#CryptoSecurity101

"Cryptosecurity101" typically refers to an introductory understanding of cryptographic security, especially in contexts such as cybersecurity, blockchain, and digital communications. Here's a simplified breakdown of the essentials:

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๐Ÿ” Cryptosecurity 101: The Basics

1. What is Cryptosecurity?

Cryptosecurity refers to the use of cryptography (the practice of securing communication and data through encoding) to protect information from unauthorized access or tampering.

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2. Core Concepts of Cryptography

Concept Description

Encryption Converting readable data (plaintext) into unreadable data (ciphertext).

Decryption Reversing encryptionโ€”turning ciphertext back to plaintext.

Keys Used in encryption/decryption. Can be symmetric (same key) or asymmetric (public/private keys).

Hashing One-way transformation of data into a fixed-size string. Common in passwords and blockchain.

Digital Signatures Cryptographic proof of authenticity and integrity. Used to verify senders and contents.

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3. Types of Cryptographic Algorithms

Symmetric Encryption (e.g., AES): Fast, same key for encrypting/decrypting.

Asymmetric Encryption (e.g., RSA, ECC): Slower, but more secure. Uses key pairs.

Hash Functions (e.g., SHA-256): No decryption; used for integrity checks and mining.

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4. Common Uses in Real Life

HTTPS: Secures website connections using SSL/TLS encryption.

Email Encryption: PGP/GPG tools encrypt emails for privacy.

Blockchain & Cryptocurrency: Use public-key cryptography for wallet security and digital signatures.