Miroslav Pavleski (SETCCE)

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Presentation transcript:

Miroslav Pavleski (SETCCE) WORKSHOP: THREE STEPS TOWARDS STANDARD DIGITAL SIGNATURES ON WINDOWS PLATFORM Miroslav Pavleski (SETCCE)

About Digital Signatures Digital Signature and document standards Introduction About Digital Signatures Digital Signature and document standards SETCCE digital signature tools – proXSign®

Introduction (continued) Demo desktop application Demo Web application client-side Demo Web application server-side

About Digital Signatures Electronic analog of real-world signatures and stamps Enabler for paperless business Establishes connection between signing party and document content

Traditional symmetric key cryptography

Asymmetric key cryptography Key-pair

CRYPTOGRAPHY Cryptographic hash

Public Key Infrastructure Confirmation of identity Certificate Authority Legal authority Private Key Digital certificate

Signing Process

Enables confirmation of existence of content prior given point in time Digital Time-Stamps Enables confirmation of existence of content prior given point in time RFC 3161 standard

XML Signature Syntax and Processing http://www.w3.org/TR/xmldsig-core/ Standards - XML XML Signature Syntax and Processing http://www.w3.org/TR/xmldsig-core/ XML Signatures provide integrity, message authentication, and/or signer authentication services for data of any type, whether located within the XML that includes the signature or elsewhere

XML DSIG Structure <Signature> <SignedInfo> <Reference> <DigestMethod /> <DigestValue></DigestValue> </Reference> </SignedInfo> <SignatureValue></SignatureValue> <KeyInfo></KeyInfo>

XML Detached Signature <DocumentElement> <Data></Data> <Signature /> </DocumentElement>

XML ENVELOPED Signature <DocumentElement> <Data> <SubData> <Signature /> </SubData> </Data> </DocumentElement>

XML ENVELOPING Signature <SignedInfo /> <SignatureValue /> <KeyInfo /> <Object> Embeded Object Data </Object>

XML Advanced Electronic Signatures (XADES) Basic electronic signature (XAdES-BES) Explicit policy electronic signatures (XAdES-EPES) Electronic signature with time (XAdES-T) Electronic signature with complete validation data references (XAdES-C)

PDF Digital signatures Part of the PDF standard ISO 32000-1:2008 Accompanying standard Electronic document file format for long term preservation ISO 19005-1:2005 (PDF / A)

PDF Digital Signatures explained Uses the incremental updates (document revision functionality of PDF)

Software components for digital signatures, time-stamps and encryption Setcce proxsign Software components for digital signatures, time-stamps and encryption proXSign XML proXSign PDF

Three steps to Digital Signature in your Application Download and install proXSign dev. package http://www.proxsign.com/download Install test certificate Write integration code & test

Digital Identity installation in Windows certificate store DEMO Digital Identity installation in Windows certificate store

Integrate digital signing in Desktop Application DEMO Integrate digital signing in Desktop Application

Integrate digital signing in client-side JavaScript DEMO Integrate digital signing in client-side JavaScript

Integrate digital signing in Server code DEMO Integrate digital signing in Server code

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