47 lines
1.6 KiB
Plaintext
47 lines
1.6 KiB
Plaintext
===================
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Document signatures
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===================
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Mayan EDMS supports two types of document signatures: embedded and
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detached signatures. When a document with an embedded signature is
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uploaded, this signature is readily detected as part of the document
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inspection step. The status of the signature can be verified by accessing the
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signatures sections of a document.
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.. blockdiag::
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blockdiag {
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orientation = portrait
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span_width = 240;
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user [ shape = "actor" ];
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key [ shape = flowchart.database, label = "Key" ];
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document [ shape = "note", label = "Document" ];
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document_signed [ label = "Signed\nDocument" ];
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key -> user -> document -> document_signed;
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}
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Signed documents are tamper-proof. That means that if any part of the document's
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file is edited (even just one character or one pixel), the document's
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signature becomes invalid alerting that an unauthorized change has occurred.
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Existing non signed documents can be signed in one of two ways:
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by downloading the document, signing it, and uploading the signed document
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as a new version of the existing one or by creating a detached signature for
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the non signed document and uploading such detached signature file.
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Maintenance of the public keyring can be done using the ``Key management``
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functionality in the ``Setup menu``.
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From this menu, key servers can be queried and the results imported. Public
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keys no longer needed can also be deleted from this menu.
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Only `GNU Privacy Guard`_ signatures are support at the moment.
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Only version 1 of `GNU Privacy Guard`_ is supported at the moment.
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.. _`GNU Privacy Guard`: www.gnupg.org/
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