Bcrypt Encryption

Online Bcrypt encryption tool for encrypting and comparing text strings. Quickly generate secure Bcrypt hash values, suitable for password encryption and storage

Bcrypt

Compare string with hash

Hash information

BCrypt Password Encryption Tool Guide

BCrypt is a powerful password encryption tool designed and developed by Niels Provos and David Mazières in 1999. Based on the Blowfish encryption algorithm, it is specifically designed for password hashing and is one of the most secure and reliable cryptographic hash functions available today.

Why Choose BCrypt?

  • Adaptive: Can dynamically adjust encryption strength through configurable work factors as hardware performance improves
  • Built-in Salt: Automatically generates unique random salt for each password, effectively preventing rainbow table and pre-computation attacks
  • One-way Encryption: Uses irreversible hash algorithm, making it impossible to restore original passwords even if data is leaked
  • Controllable Computation Cost: Balance security and performance needs by adjusting work factor
  • Widely Validated: Proven through years of practice and adopted by many security systems including OpenBSD

Detailed Instructions

  1. Enter Original Password

    • Enter the password to be encrypted in the left input box
    • Recommend using strong passwords with 8+ characters including uppercase/lowercase letters, numbers, and special characters

  2. Select Work Factor

    • Default value is 10, adjustable based on needs
    • Each increase in work factor approximately doubles computation time
    • Recommended values:
      • Regular websites: 10-11
      • High security requirements: 12-14
      • Extreme security requirements: 15+

  3. Generate Hash

    • Click "Encrypt" button to generate hash value
    • Hash format: $2a$xx$...
    • Fixed total length of 60 characters

  4. Verification Function

    • Used to check if password matches existing hash
    • Enter original password and existing hash for comparison
    • Verification process is secure, doesn't expose original password

Common Use Cases

  1. Web Application Development

    • User registration systems
    • Admin password storage
    • API authentication key encryption

  2. Database Security

    • Sensitive information encryption
    • Access credential protection
    • Data backup encryption

  3. Identity Authentication Systems

    • Single Sign-On (SSO)
    • Multi-Factor Authentication (MFA)
    • Password reset processes

  4. Enterprise Security Solutions

    • Employee password management
    • Access control systems
    • Security audit trails

Security Best Practices

  1. Password Policies

    • Enforce strong passwords
    • Regular password changes
    • Avoid password reuse

  2. Storage Recommendations

    • Use secure database systems
    • Implement access controls
    • Regular data backups

  3. System Configuration

    • Choose appropriate work factor
    • Monitor system performance
    • Regular algorithm version updates

  4. Application Integration

    • Use secure communication protocols
    • Implement rate limiting
    • Log security events

Technical Specifications

  • Algorithm Type: Modified Blowfish encryption algorithm
  • Output Length: 60 characters
  • Salt Length: 16 bytes
  • Work Factor Range: 4-31
  • Time Complexity: O(2^n), where n is the work factor

BCrypt, as a time-tested password encryption solution, not only provides extremely high security but also offers good configurability and compatibility. With this tool, you can easily implement password encryption schemes that meet contemporary security standards and provide reliable password protection for your applications.