BTC/USDT - Key Levels To Watch! Will We Break Out? 🚀* Hey Family, Bitcoin is trading in a very critical range right now. Two major levels are clearly visible on the chart. *📊 Chart Breakdown:* *1. Strong Support - $62,000 (Green Line)* Look at the blue circles on the chart. Price has bounced 3 times from this exact level. This shows strong buyers are defending this zone. *2. Strong Resistance - $68,500 (Red Line)* Check the red circles. Price got rejected twice from this level. Sellers are very active here. *My Game Plan:* As long as BTC stays above $62,000 support, the trend remains bullish. A breakout above $68,500 can lead to a massive rally. If $62,000 breaks, next support to watch is $60,000. RSI is at 52 - Neutral, so opportunity on both sides. Not financial advice. Just for educational purpose. DYOR. What do you think? Will BTC test $62k first or break $68.5k? Comment below! #BTC #Bitcoin #Crypto #TradingView #SupportAndResistance
### 1. Terminology - **Plaintext**: Original readable message - **Ciphertext**: Encrypted message - **Encryption**: Process of converting plaintext to ciphertext - **Decryption**: Process of converting ciphertext back to plaintext - **Key**: Secret value used to encrypt/decrypt messages
### 2. Classical Ciphers - **Caesar Cipher**: Shifts letters by fixed number - **Substitution Cipher**: Replaces each letter with another - **Vigenère Cipher**: Uses keyword for polyalphabetic substitution
### 3. Symmetric Cryptography - **Single key** for both encryption and decryption - Examples: AES (Advanced Encryption Standard), DES, 3DES - Fast but requires secure key exchange
## Intermediate Concepts
### 1. Asymmetric Cryptography - **Public/private key pairs** - Public key encrypts, private key decrypts (or vice versa) - Examples: RSA, ECC (Elliptic Curve Cryptography) - Solves key distribution problem
### 2. Hash Functions - One-way functions producing fixed-size output - Examples: SHA-256, MD5 (insecure), SHA-3 - Used for data integrity, password storage
### 3. Digital Signatures - Proves authenticity and integrity of messages - Created by encrypting hash with private key - Verified with public key
### 2. Modern Algorithms - **Post-quantum cryptography**: Resistant to quantum computers (Lattice-based, Hash-based) - **Homomorphic encryption**: Computation on encrypted data - **Zero-knowledge proofs**: Prove knowledge without revealing information
### 3. Cryptanalysis - Techniques for breaking cryptographic systems - Side-channel attacks - Differential/linear cryptanalysis - Birthday attacks on hash functions