Secure your sensitive text with enhanced encryption that includes quantum-resistant measures.
Your data never leaves your browser - all encryption happens locally.
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Generated passwords use multiple entropy sources: Web Crypto API, timestamp microtiming,
browser-specific data, and multi-round Fisher-Yates shuffling.
Real-Time Process Visualization
Status:
Ready
PBKDF2 Iterations: 0/0
Original Text Length:
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Password Entropy:
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Salt:
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IV:
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Derived Key (First 8 bytes):
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HMAC (First 8 bytes):
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Processing Time:
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Advanced Security Information
This encryption system employs multiple techniques to provide strong protection, including quantum-resistant considerations:
Password-Based Key Derivation (PBKDF2)
PBKDF2 transforms your password into a cryptographic key through an iterative process:
High Iteration Counts: Uses 10,000 to 500,000 iterations depending on security level, making brute-force attacks computationally expensive
Memory-Hard Operations: Forces attackers to use significant computational resources for each password guess
Unique Salt: Random salt (128 to 512 bits) prevents pre-computed table attacks like rainbow tables
Key Size: Generates oversized keys (256 to 768 bits) to provide margin against future computational advances
AES Encryption with Quantum Resistance Considerations
AES remains one of the few algorithms believed to resist quantum attacks with sufficient key size:
Grover's Algorithm Impact: Quantum computers using Grover's algorithm could theoretically reduce AES-256's security to roughly equivalent to AES-128, which is still considered secure
CBC Mode: Uses Cipher Block Chaining mode with proper initialization vectors for secure block encryption
Key Splitting: The derived key is split into separate encryption and authentication keys, enhancing security through separation of concerns
Authentication and Integrity (HMAC-SHA512)
HMAC-SHA512 provides high-strength verification that the data hasn't been tampered with:
512-bit Output: Provides cryptographic proof of data integrity
Authentication Tag: Prevents attackers from modifying encrypted data without detection
Authenticated Encryption: Implements the "encrypt-then-MAC" pattern, which is cryptographically preferred over alternatives
Multiple Security Levels
Level
PBKDF2 Iterations
Key Size
Salt Size
Use Case
Standard
10,000
256 bits
128 bits
Quick encryption of less sensitive data
Enhanced
100,000
512 bits
256 bits
Recommended for most sensitive data
Maximum
500,000
768 bits
512 bits
Extremely sensitive data, long-term storage
Quantum Computing Considerations
Quantum computers pose specific threats to cryptography:
Shor's Algorithm: Can break RSA and ECC cryptography (not used here)
Grover's Algorithm: Can reduce symmetric key security, but requires key sizes double the desired security level (addressed by our oversized keys)
Post-Quantum Security: While this isn't a true post-quantum cryptography implementation, the measures taken (very large keys, high iteration counts, multiple security layers) provide reasonable protection against near/mid-term quantum threats
Security Limitations
Password Strength: The encryption is only as strong as your password - use long, random passwords
Client-Side Security: All encryption happens in your browser, protecting against network interception but vulnerable to malware on your device
JavaScript Implementation: Not as fast as native implementations, which is why visualization may not perfectly represent actual performance
True Quantum Resistance: For complete quantum resistance, dedicated post-quantum algorithms (like CRYSTALS-Kyber, NTRU, etc.) would be required
Privacy Considerations
Zero Data Transmission: All processing happens in your browser - no data is ever sent to any server
No Logging: No information about your encryption activities is stored anywhere
Offline Usage: Can save this page and use it completely offline for maximum privacy