Transfer Bundle Integrity [Dido Solutions, Inc Wiki]

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====== Transfer Bundle Integrity ======

[[dido:99_annexes:annex-b-terms-and-definitions:start|Go to Terms and Definitions]]

===== Discussion =====

Transfer Bundle Integrity is the characteristic of a transfer bundle whose content and structure remain complete and unaltered except through authorized change.

A transfer bundle may contain:

  * [[dido:99_annexes:annex-b-terms-and-definitions:a:artifact|Artifacts]]
  * Configuration files
  * Machine Images
  * Software packages
  * Data files
  * Manifests
  * Metadata
  * Digital signatures
  * Checksums
  * Certificates
  * Transfer instructions
  * Evidence

Transfer Bundle Integrity may require verification that:

  * Every expected item is present
  * No unauthorized item has been added
  * No item has been removed
  * No item has been modified
  * The bundle structure remains valid
  * The manifest corresponds to the bundle content
  * The recorded identifiers and revisions remain unchanged
  * Applicable cryptographic verification succeeds

Mechanisms used to establish or verify Transfer Bundle Integrity may include:

  * Cryptographic hashes
  * Digital signatures
  * Message authentication codes
  * Signed manifests
  * File counts
  * Size checks
  * Structural validation
  * Authenticated encryption

Transfer Bundle Integrity differs from authenticity:

  * Transfer Bundle Integrity concerns completeness and freedom from unauthorized alteration
  * Authenticity concerns whether the bundle or its content originates from the claimed source

A digital signature may provide evidence supporting both integrity and authenticity, but the concepts remain distinct.

===== Definition =====

//integrity of a transfer bundle with respect to the completeness of its content and protection from unauthorized addition, removal, or modification//

===== Source =====

Dido Solutions, Inc. and Jackrabbit Consulting, Inc.

===== Note =====

Transfer Bundle Integrity may be verified:

  * Before export
  * After creation of the transfer medium
  * At an intermediate transfer point
  * Before import
  * After import

Successful integrity verification does not establish that the bundle:

  * Is authorized for transfer
  * Contains only permitted information
  * Is free from malicious content
  * Is authentic
  * Is suitable for use in the destination environment

Separate controls establish those characteristics.

Integrity evidence should remain associated with the transfer bundle and the applicable transfer record.

===== Example =====

A transfer process creates a signed manifest containing the identifier, revision, size, and cryptographic hash of every Artifact in a transfer bundle. The destination process verifies the signature and recalculates each hash before importing the bundle. Matching results provide evidence of Transfer Bundle Integrity.

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© 2026 Dido Solutions, Inc. and Jackrabbit Consulting, Inc.
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