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How Issuers can Digitally Bulk Sign
Documents for DigiLocker
v1.0
Sept 2015
Digital Signatures
• Currently Signature Certificates (DSC) are given in
3 forms
– FIPS certified Hardware (USB Token/HSM)
– .pfx/.p12 file
• All the 2 types are password protected and follow
PKCS (Public Key Cryptography Standard) and
contain the private key and public x.509
certificate
• X.509 contains the public key, CRL and certificate
path validation algorithm
Types of Certificates
• 2 types of certificates can be used to digitally
sign documents
– Digital Signature Certificate
– Document Signer Certificate
Digital Signature Certificate Document Signer Certificate
Class 2 issued to individuals on a USB
Token only
Issued to Organizational software
applications. Class 2 can be either USB
token or soft token
Class 3 Issued to Individuals and
Organizations on a USB Token only
Class 3 is a USB Token
Signed document will have the signer
individual’s name
Signed document will have the
organization’s name
Bulk Signing Option - 1
• Use USB Token:
– Issuer to obtain any one of the following signing
certificates
• Class 2 or 3 Digital Signature Certificate
• Class 2 or 3 Document Signer Certificate
Bulk Signing Option - 1
• Use USB Token:
– Attach the USB token with the application server.
– Use the utilities available that allow an application
to use the signing certificate stored in dongle and
bulk sign the un-editable documents (preferably
PDF) in batch mode or run time mode.
Bulk Signing Option - 2
• Use Soft Token :
– Issuer to obtain a Class 2 Document Signer
Certificate as soft token (.pfx or .p12 file)
– Store the soft token on the application server.
– Use the utilities available that allow an application
to use the Signing certificate stored in the file and
bulk sign the un-editable documents (preferably
PDF) in batch mode or run time mode.

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Bulk and Run Time Digital Signing v1.0

  • 1. How Issuers can Digitally Bulk Sign Documents for DigiLocker v1.0 Sept 2015
  • 2. Digital Signatures • Currently Signature Certificates (DSC) are given in 3 forms – FIPS certified Hardware (USB Token/HSM) – .pfx/.p12 file • All the 2 types are password protected and follow PKCS (Public Key Cryptography Standard) and contain the private key and public x.509 certificate • X.509 contains the public key, CRL and certificate path validation algorithm
  • 3. Types of Certificates • 2 types of certificates can be used to digitally sign documents – Digital Signature Certificate – Document Signer Certificate Digital Signature Certificate Document Signer Certificate Class 2 issued to individuals on a USB Token only Issued to Organizational software applications. Class 2 can be either USB token or soft token Class 3 Issued to Individuals and Organizations on a USB Token only Class 3 is a USB Token Signed document will have the signer individual’s name Signed document will have the organization’s name
  • 4. Bulk Signing Option - 1 • Use USB Token: – Issuer to obtain any one of the following signing certificates • Class 2 or 3 Digital Signature Certificate • Class 2 or 3 Document Signer Certificate
  • 5. Bulk Signing Option - 1 • Use USB Token: – Attach the USB token with the application server. – Use the utilities available that allow an application to use the signing certificate stored in dongle and bulk sign the un-editable documents (preferably PDF) in batch mode or run time mode.
  • 6. Bulk Signing Option - 2 • Use Soft Token : – Issuer to obtain a Class 2 Document Signer Certificate as soft token (.pfx or .p12 file) – Store the soft token on the application server. – Use the utilities available that allow an application to use the Signing certificate stored in the file and bulk sign the un-editable documents (preferably PDF) in batch mode or run time mode.