OpenSSL Password Generator: Create Cryptographically Secure Passwords [2025]
Generate high-entropy passwords using cryptographically secure algorithms in various formats.
OpenSSL Password Generator
Security Features
Cryptographic Security
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Web Crypto API
Uses cryptographically secure random number generation
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High Entropy
Generated from secure random bytes
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Salt Support
Optional salt for additional security
Format Options
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Hex Encoding
Similar to openssl rand -hex
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Base64 Encoding
URL-safe base64 like openssl rand -base64
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Crypt Format
Compatible with system password hashes
Common Use Cases
System Integration
Our OpenSSL-style password generator is particularly useful for:
- Creating secure API keys and tokens
- Generating system user passwords
- Creating initialization vectors (IVs) for encryption
- Building secure session identifiers
Development Environment
Perfect for developers who need:
- Consistent format with OpenSSL command line tools
- High-entropy random values for testing
- Password hashes for database seeding
- Secure random strings for various purposes
Frequently Asked Questions
How secure is this generator?
Our generator uses the Web Crypto API's cryptographically secure random number generator, providing the same level of security as OpenSSL's RAND_bytes() function. This makes it suitable for cryptographic operations and secure password generation.
When should I use different formats?
Use hex format for raw binary data representation, base64 for more compact strings that need to be URL-safe, and crypt format when generating passwords that need to match Unix-style password hash formats.
What's the purpose of salt?
Salt adds randomness to password hashes, preventing rainbow table attacks and ensuring that identical passwords produce different hashes. It's particularly important when using the crypt format for system passwords.
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