Password Generator Gratuit

Purpose & User Intent: The tool solves the need to create strong, random passwords without manual crafting. Target users include IT admins, developers, freelancers, and individuals who manage multiple accounts. Use when provisioning new credentials, rotating access, or enforcing internal password policies. It emphasizes privacy by generating locally in the user environment and never transmitting secrets.\n\nCore Logic & Features: Required features include length selection (8–128 chars), character class toggles (lowercase, uppercase, digits, symbols), an option to exclude ambiguous characters, and a rule that at least one character from each enabled class is included when selected. Optional/advanced features include a deterministic seed for testing and a simple entropy estimate. The algorithm uses a cryptographically secure RNG (e.g., crypto.getRandomValues) when available; if not, a safe fallback is used.\n\nInputs & Outputs: Inputs include length (integer, 8–128), booleans for include_lower, include_upper, include_digits, include_symbols, exclude_ambiguous, and optional seed for deterministic runs. Sample values: length=16, include_lower=true, include_upper=true, include_digits=true, include_symbols=true, exclude_ambiguous=true, seed=null. Outputs: password (string) of the requested length.\n\nAlgorithms & Calculations: The pool is the union of enabled classes. The generator ensures at least one character from each enabled class is present by preselecting required chars, then fills remaining positions by random picks from the pool. Entropy is approximately log2(pool_size^length). The tool avoids ambiguous characters and uses a uniform distribution to prevent bias.\n\nError & Edge Cases: Validation: if length is outside 8–128 or no class is enabled, error. If required classes cannot be represented within the length (e.g., length < number of enabled classes), error. If cryptographic RNG is unavailable, fallback to a time-based RNG with explicit caveat about reduced security. No external data is used.\n\nIndustry/Region & Localization: Units are characters; no currency or locale-specific rules are required. If needed, sets are kept locale-agnostic to avoid regional inconsistencies.\n\nAssumptions & Exclusions: Assumes client-side generation with no data leaving the device; does not store generated passwords or provide password management features. Excludes password auditing, storage, sharing, or policy enforcement beyond generation.