FPE Maker OC Mini

The tool models and validates format-preserving encryption configurations used in data protection workflows. It targets cryptography professionals, security engineers, and compliance teams who design FPE deployments for sensitive data across finance, healthcare, and public-sector contexts. By abstracting the configuration space, it helps users compare algorithm variants, input alphabets, and data formats, ensuring feasibility, regulatory alignment, and auditability before committing to implementation.
Core logic treats FPE setup as a constraint-driven analysis. Users specify algorithm scope (FF1/FF3-1-like), radix or alphabet, maximum plaintext length, and data formats. The tool computes compatibility, dependency checks, and practical limits, such as maximum token length for a given alphabet and performance implications. It outputs recommended parameter sets, safety checks, and a risk or confidence score for each configuration. Additionally, the tool validates consistency across related inputs, such as aligning alphabet with token length and ensuring chosen schemes remain compatible with target storage or transport formats.
Inputs and outputs: Inputs include data format (string or numeric), alphabet, max length, and optional domain constraints. Outputs provide a configuration summary, validated parameter ranges, estimated processing characteristics, and an export-ready configuration block. When inputs are incomplete, the tool applies sensible defaults, flags missing constraints, and offers alternative configurations to preserve progress without exposing cryptographic weaknesses. Outputs may include optional guidance notes for engineers, such as recommended performance tradeoffs and a compatibility flag indicating which libraries or runtimes are likely to support the final configuration.