Cryptographic Algorithms and Randomness
Our password generator uses advanced cryptographic algorithms to ensure that every password generated is completely random and secure. We rely on industry-standard encryption methods to maintain the highest level of security.
True Randomness
Unlike simple random number generators, our system uses cryptographically secure pseudo-random number generation (CSPRNG) through the Web Cryptography API. This ensures that the passwords created are truly random and unpredictable, making them virtually impossible to guess or crack through brute force methods.
What is CSPRNG?
Cryptographically Secure Pseudo-Random Number Generators (CSPRNGs) are random number generators with properties that make them suitable for use in cryptography. They are designed to resist prediction and analysis, even by attackers with significant computational resources.
Entropy and Password Strength
The security of a password is directly related to its entropy—a measure of unpredictability. Our generator maximizes entropy by:
- Using a large character set (uppercase, lowercase, numbers, and symbols)
- Creating passwords of sufficient length
- Ensuring even distribution of characters
- Avoiding patterns and predictable sequences
For example, a random 12-character password using all character types has approximately 72 bits of entropy, which would take centuries to crack using current technology.
The Generation Process
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User Input Collection
The process begins when you select your desired password parameters, including length, character types, and any exclusions.
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Character Set Assembly
Based on your selections, our system assembles a character set that includes all possible characters that can appear in your password.
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Secure Random Number Generation
Using the Web Cryptography API's
crypto.getRandomValues()method, we generate cryptographically secure random numbers. -
Character Selection
These random numbers are used to select characters from the assembled character set, ensuring true randomness in the selection process.
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Validation
The generated password is validated to ensure it meets all specified criteria, including containing at least one character from each selected character type.
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Strength Assessment
The password's strength is calculated based on length, character variety, and other security factors.
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Delivery
The final password is displayed to you, ready to be copied and used.
Security Measures
Client-Side Generation
All password generation happens entirely in your browser. Your password is never transmitted over the internet or stored on our servers, eliminating the risk of interception or data breaches.
No Logging or History
We maintain no logs or history of generated passwords. Once you navigate away from the page, all traces of your password are gone unless you've saved it elsewhere.
Secure Code Implementation
Our code is regularly audited for security vulnerabilities and follows best practices for secure web development, including:
- Using modern, secure JavaScript APIs
- Implementing proper input validation
- Following the principle of least privilege
- Regular security updates and maintenance