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similarity index 100%
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similarity index 100%
rename from book/source/diag/OpenPGP_Certificate_packet_2.svg
rename to book/source/diag/OpenPGP_Signature_packet_2.svg
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deleted file mode 100644
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diff --git a/book/source/diag/cryptographic_signature.png b/book/source/diag/cryptographic_signature.png
deleted file mode 100644
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index ad830b5..6d8a3ac 100644
--- a/book/source/diag/diag_library_draft.svg
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