Integrity
Data integrity refers to the completeness, accuracy, and consistency of data over its entire life cycle. PLA 3.0 stores all your data in electronic documents, which are in turn stored in a database. When handling documents, PLA 3.0 utilizes digital signatures to ensure that documents are not tampered with.
Electronic documents
PLA 3.0 securely stores all your data within electronic documents. Documents are organized within a database and presented through a folder tree for easy navigation and access. Your data remains complete, accurate, and consistent throughout its life cycle, thus ensuring data integrity.
Digital (cryptographic) signatures
When saving a document, PLA 3.0 applies a digital signature as cryptographic value. Each time the document is opened, the digital signature is validated to make sure the document has not been tampered with.
PLA 3.0 exports and imports documents using document packages (*.edpdp or *.edpdpx files). To ensure that documents within the packages are not tampered with, the packages are cryptographically secured.
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A hash value is created and assigned as a cryptographic checksum to each document package.
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An XML file is created with checksums of all document packages and secured by an XML signature.