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SHA1 Encrypt/Decrypt

Encrypt and decrypt text using SHA1-based encryption with customizable keys and advanced security features

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SHA1 Encrypt/Decrypt

Encrypt and decrypt text using SHA1-based encryption with AES-256

Encrypt Text

🔐 About SHA1 Encryption

• Uses SHA1-based key derivation with PBKDF2 (100,000 iterations)

• Implements AES-256 encryption in CBC mode

• Generates random salt and IV for each encryption

• All processing happens locally in your browser

• No data is sent to any server

• Keep your encryption key safe - it's required for decryption

About SHA1 Encrypt/Decrypt

The SHA1 Encrypt/Decrypt tool provides secure text encryption using SHA1-based key derivation and AES encryption. Perfect for protecting sensitive information, creating secure messages, and implementing cryptographic solutions. Features custom key generation, multiple encryption modes, and secure decryption capabilities.

✨ Key Benefits

  • Encrypt sensitive text with SHA1-based security
  • Generate secure encryption keys from passphrases
  • Support for multiple encryption algorithms
  • Secure decryption with proper key validation
  • Copy encrypted/decrypted results to clipboard
  • Real-time encryption and decryption
  • Advanced security features and options
  • No data stored on servers - client-side only

🚀 Features

  • SHA1-based key derivation function
  • AES-256 encryption with CBC mode
  • Custom passphrase support
  • Secure random salt generation
  • Base64 encoded output
  • Input validation and error handling
  • Clipboard copy functionality
  • Clear all data option
  • Real-time processing
  • Mobile-responsive interface

💡 Use Cases

  • Encrypting sensitive personal information
  • Protecting confidential business data
  • Creating secure password storage
  • Implementing secure communication protocols
  • Encrypting files and documents
  • Securing API keys and tokens
  • Educational cryptography demonstrations
  • Building secure applications

🎯 Fun Facts

  • SHA1 produces a 160-bit hash, making it faster than SHA256
  • AES-256 is used by governments for classified information
  • The tool uses PBKDF2 for secure key derivation
  • Encryption happens entirely in your browser
  • Salt prevents rainbow table attacks
  • CBC mode provides semantic security

📚 Historical Context

  • SHA1 was developed by the NSA and published in 1993
  • AES was selected as the encryption standard in 2001
  • PBKDF2 was designed to slow down brute force attacks
  • SHA1 was widely used before SHA256 became standard
  • AES replaced DES as the encryption standard
  • Modern browsers support Web Crypto API for secure encryption