Digital Signatures

National Informatics Centre Digital Signatures An electronic signature duly issued by the certifying authority that shows the authenticity of the person who is signing the e-document. eCourt Div. NIC-Hq, New Delhi.

National Informatics Centre Electronic Record • Very easy to make copies • Very fast distribution • Easy archiving and retrieval • Copies are as good as original • Easily modifiable • Environmental Friendly Because of 4 & 5 together, these lack authenticity

National Informatics Centre Why Digital Signatures? • To provide Authenticity, Integrity and Non -repudiation to electronic documents • To use the Internet as the safe and secure medium for e-Governance ande-Commerce

National Informatics Centre What is Digital Signature? • A digital signature is an electronic signature that can be used to authenticate the identity of the sender of a message or the signer of a document, and possibly to ensure that the original content of the message or document that has been sent is unchanged. • Digital signatures are easily transportable, cannot be imitated by someone else, and can be automatically time-stamped. The ability to ensure that the original signed message arrived means that the sender can not easily repudiate it later. • The originator of a message uses a signing key (Private Key) to sign the message and send the message and its digital signature to a recipient • The recipient uses a verification key (Public Key) to verify the origin of the message and that it has not been tampered with while in transit

National Informatics Centre Digital signatures employ a type of Asymmetric Cryptography. The Scheme typically consists of three Algorithms • A key generation algorithm that selects a private key uniformly at random from a set of possible private keys. The algorithm outputs the private key and a corresponding public key. • A signing algorithm that, given a message and a private key, produces a signature. • A signature verifying algorithm that, given a message, public key and a signature, either accepts or rejects the message's claim to authenticity Hash value of a message when encrypted with the private key of a person, is his digital signature, on that e-Document

National Informatics Centre Digital Signatures Each individual generates his own key pair [Public key known to everyone & Private key only to the owner] Private Key – Used for making Digital Signature Public Key – Used to verify the Digital Signature

National Informatics Centre Hardware Crypto Token CT 550 Token Smart Card

National Informatics Centre Smart Cards • The Private key is generated in the crypto module residing in the smart card. • The key is kept in the memory of the smart card. • The key is highly secured as it doesn’t leave the card, the message digest is sent inside the card for signing, and the signatures leave the card. • The card gives mobility to the key and signing can be done on any system (Having smart card reader).

National Informatics Centre USB Tokens • They are similar to smart cards in functionality as • Key is generated inside the token. • Key is highly secured as it doesn’t leave the token. • Highly portable. • Machine Independent. • StarKey400 is one of the most commonly used token as it doesn’t need a special reader and can be connected to the system using USB port. StarKey400

National Informatics Centre Private Key Protection • The Private key generated is to be protected and kept secret. The responsibility of the secrecy of the key lies with the owner. • The key is secured using • PIN Protected soft token • Smart Cards • Hardware Tokens

National Informatics Centre Digital Signatures I agree efcc61c1c03db8d8ea8569545c073c814a0ed755 My place of birth is at Varanasi. fe1188eecd44ee23e13c4b6655edc8cd5cdb6f25 I am 46 years old. 0e6d7d56c4520756f59235b6ae981cdb5f9820a0 I am an Engineer. ea0ae29b3b2c20fc018aaca45c3746a057b893e7 I am a Engineer. 01f1d8abd9c2e6130870842055d97d315dff1ea3 • These are digital signatures of same person on different documents • Digital Signatures are numbers • Same Length – 40 digits • They are document content dependent

National Informatics Centre Paper Signatures V/s Digital Signatures V/s

National Informatics Centre Role of Controller (CCA) Controller of Certifying Authorities as the “Root” Authority certifies the technologies, infrastructure and practices of all the Certifying Authorities licensed to issue Digital Signature Certificates

National Informatics Centre Seven CAs have been licensed by CCA • Safescrypt • National Informatics Center (NIC), Government of India • Institute for Development & Research in Banking Technology (IDRBT) – A Spciety of Reserve Bank of India • Tata Consultancy Services (TCS) • MTNL Trustline • GNFC (Gujarat Narmada Fertilizer Corporation) • E-MudhraCA

National Informatics Centre How To Get & Use Digital Signature

National Informatics Centre Application Request • Go to http://nicca.nic.in • Download DSC Request Form • Fill-in the Form • Sign the Form at Required Place • Get the Form Countersigned and Verified from HOD along with his/her Official Stamp • Enclose Identification Proof • Enclose Fee (if required) in Form of Bank Draft • Send to NIC Office

National Informatics Centre Issuance of Digital Signatures • Send your completed form to NIC Sub CA Unit Office • Once your form is found satisfactory and the fee is properly submitted, the form is counter signed by NIC, HoD. • The form is then forwarded to NIC Certifying Authority Office (Nearest NIC Sub CA Office) for processing. • When your case is processed a Membership ID and Password is Issued and send to the email ID mentioned in Application Form. • A Digital Signature in USB Token or Smart Card can be collected from NIC Sub CA Office.

National Informatics Centre Accessing Website with Membership ID for Enrollment of Request On line

National Informatics Centre How to make Request • Insert the USB Pen Drive /Smart Card Reader in your computer system • Insert the Smart Card in the Reader ( In case of Smart Card ) • Download USB/Smart Card Driver from NICCA website (http://nicca.nic.in) • Unzip and Double Click the Downloaded File • When the Proper Driver is loaded From Token Administration, Device will get Operational

National Informatics Centre Driver Downloading

National Informatics Centre Please Click Download Smart Card USB E-token Driver Link

Select Your Media Type National Informatics Centre

National Informatics Centre Enrollment Process

Click Member Login National Informatics Centre

National Informatics Centre Enter User ID and Password and click Submit Button User Id and Password are Same

Click Step 1 or Enroll Button National Informatics Centre

National Informatics Centre Fill form and select SafeSign Cryptographic Service Provider in Cryptographic Service Provider Dropdown

After Filling Form and Cryptographic Service Provider Select option ‘Generate Request’ National Informatics Centre

You will receive email from nicca.nic.in when your Certificate is generated. click step-4 or view status for downloaded Certificates National Informatics Centre

If your Certificate is generated then click your Request No. and enter Authentication Pin (Authentication Pin is send to your e-mail id by nicca.nic.in) and click download Button. National Informatics Centre

National Informatics Centre To Check if Certificate is available in Device

National Informatics Centre eCourt D. S. Solution • Go to Web http://ecourts.nic.in/admin1/digital.htm • Select the appropriate link for O.S. and Token. • Download all files from the link on your machine. • Run all the command as per instruction there in. • Start signing the pdf document as per requirement. • Verification can also be done for the signed files.

National Informatics Centre Prevention From Misuse • Do’t Hand over you DSC Media USB/Card to any one • Do’t tell your PIN to anyone • Document Digitally Signed carries same legal status as manually signing as per the IT Act

National Informatics Centre Thank You eCourt Division NIC Hq. New Delhi-3

Digital Signatures