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A simple repository to salt a secret key and verify its authenticity. Developed to be used in mobile applications while communicating with a server side using an Api. Instead of sending an apikey straight on the request, SaltedKey can generate a temporary public key, valid for one time use and during a specific time frame, default time is set to 60 seconds. This public key can be sent on request and on server side SaltedKey can verify its authenticity. The Salt is based on time millis and uses the algorithm SHA-256 to create the temporary public key. The public key base will change every time it exceeds the time frame. This library can increase the API security. Even if the public key used on request is exposed, no one will be able to use it again! As it is a one time use only.

Programmatically generate, load, modify, and convert Excel .xlsx spreadsheets in your Java applications. GrapeCity Documents for Excel (GcExcel) is a cross-platform high-speed, small-footprint spreadsheet API library that requires no dependencies on Excel. The powerful calculation engine supports 450+ Excel Functions and custom functions to perform complex calculations. GcExcel is 2x+ faster and uses less memory than Apache POI and allows you to save to XLSX, PDF, HTML, CSV, JSON and Images. Deploy your applications to the cloud, Windows, Mac, or Linux. If you'd like to remove the trial watermark and other trial limitations, please email [email protected] to request your 30-day evaluation key.