mittesäilivatele

mittesäilivatele is a digital storage technology developed in Finland that combines multiple data formats within a single encrypted container. The term originates from the Finnish words “mitteli” meaning “mixed” and “säili” meaning “container,” with the suffix “-telev” indicating a technical device. It was first introduced by the research group at the University of Oulu in 2015 as a response to increasing demand for secure, cross-platform file sharing in government and finance sectors.

The core principle of mittesäilivatele is the use of a layered encryption scheme that allows each data type—such as PDFs, Excel spreadsheets, images, and proprietary database files—to maintain its native structure while being protected by a unified cryptographic key. The container is then signed and compressed using the LZ4 algorithm to minimize bandwidth usage. This design eliminates the need for separate encryption tools for each file type and simplifies compliance with data protection regulations.

Industry adoption has been moderate but steady. Nordic banking institutions use mittesäilivatele to transmit regulatory reports efficiently, while healthcare providers employ it for secure transfer of medical imaging and patient records. The technology is supported by an open-source SDK that permits integration with custom enterprise workflows.

Research into extending mittesäilivatele to cloud-native storage is ongoing, with proposals to include support for object storage APIs such as Amazon S3 and Azure Blob. The next major milestone is the release of version 3.0, slated for early 2027, which will introduce AI-assisted metadata extraction and blockchain-based audit trails.