Using separate key pairs for signing and encryption

15 Feb

In several countries, a digital signature has a status somewhat like that of a traditional pen and paper signature, like in the EU digital signature legislation. Generally, these provisions mean that anything digitally signed legally binds the signer of the document to the terms therein. For that reason, it is often thought best to use separate key pairs for encrypting and signing. Using the encryption key pair, a person can engage in an encrypted conversation (e.g., regarding a real estate transaction), but the encryption does not legally sign every message he sends. Only when both parties come to an agreement do they sign a contract with their signing keys, and only then are they legally bound by the terms of a specific document. After signing, the document can be sent over the encrypted link. If a signing key is lost or compromised, it can be revoked to mitigate any future transactions. If an encryption key is lost, a backup or key escrow should be utilized to continue viewing encrypted content. Signing keys should never be backed up or es crowed.

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Digital Signature Certificates of EPFO (DSC-EPFO)

24 Oct


What is a Digital Signature (DS)?

A digital signature (DS) is a Digital electronic form of a signature that might be utilized to verify the identity of the sender of a message or the endorser of a document, and additionally guarantee that the quality content of the message or document that has been sent is unaltered. DS are effortlessly transportable and can’t be imitated by another person. The capacity to guarantee that the original signed message arrived implies that the sender can’t effectively renounce it later.

What is a Digital Signature Certificate (DSC)?

Digital Signature Certificates (DSC) is the electronic configuration of physical or paper authentication like a passport, driving License and so on. Digital Signature Certificate serves as verification of identity of a individual for a certain reason; for instance, a Passport recognizes somebody as a native of that nation; who can legitimately travel to any nation. Similarly, a DSC might be put forth electronically to prove your identity, to access of information and services on the Internet or to sign certain documents digitally.

Why do I need a Digital Certificate?

A Digital Certificate confirms your identity electronically. It additionally provides you with a advanced level of security for your online transactions by ensuring absolute privacy of the information traded utilizing a Digital Certificate. You can utilize certificates to encrypt information such that only the planned beneficiary can read it. You can digitally sign info to guarantee the recipient that it has not been changed in transit, and additionally check your identity as the sender of the message.

Where can I buying a Digital Signature Certificate (DSC)?

Legitimately quality DSC are issued only through a Controller of Certifying Authorities (CCA), the Govt. of India, authorized Certifying Authorities (CA), for example NIC, e-mudhra , MTNL, TCS, N-code and so on.

A Certifying Authority is a trusted office whose focal authority is to issue, repudiate, renew and offer directory for DSC. Consistent with Section 24 of the Information Technology Act 2000, “Certifying Authority” implies an individual who has been conceded a permit to issue DSC.

What is the role of Controller of Certifying Authorities (CCA)?

The CCA is a Government of India undertaking that permit and control the working of Certifying Authorities. The Controller of Certifying Authorities confirms the public keys of CAs, which empowers user in the internet to check that a given authentication is issued by an authorized CA. For this reason, Controller of Certifying Authorities operates, the Root Certifying Authority of India (RCAI). The Controller of Certifying Authorities also maintains the National Repository of Digital Certificate (NRDC), which holds all the certificates issued by all the CAs in the nation.

What are the different classes of DSC?

  • Class 0 Digital Signature Certificate: Only for testing purposes.
  • Class 1 Digital Signature Certificate: To individuals/private subscribers for E-Mail
  • Class 2 Digital Signature Certificate: These digital certificates will be issued for both business staff and private individual’s utilization. These digital certificates will affirm that the Info in the application furnished by the subscriber does not clash with the Info in generally distinguished buyer databases.
  •  Class 3 Digital Signature Certificate: This digital certificate will be issued to people and in addition associations. As these are high affirmation digital certificates, essential expected for e-trade applications, they should be issued to individuals only on their particular (physical) presence soon after the Certifying Authorities.
  •  DGFT Digital Signature Certificate: Digital Signature Certificates for the import and export group could be utilized to safely log on to the DGFT Online License Filing Application and might be utilized to electronically sign the License Application Form, which is filled online. It ensures that the information is secure and can’t be seen or modified by any unauthorized individual. Improve on response time taken while requesting a license with DGFT.

You Need Digital Signature Certificate Class 2, Digital Signature Certificate Class 3 and Digital Signature Certificate for DGFT for the work related to EPFO. What User type should I select?

You can select the ‘User Type’ based on your requirement of Digital Signature Certificate. It can be for personal, company or government use.

You can select the ‘User Type’ dependent upon your Requirements of Digital Signature Certificate. It might be for personal, organization or government use.

Digital Signature Certificate

20 Oct

What is a digital signature

Digital Certificate and Signature are one component of what is known as a public key infrastructure (PKI). PKI provides systems and process for guaranteeing the privacy and integrity of digital information. It allows someone to confirm his/her online identification and that documents and communications of email and banking transaction have not been tampered with.

How does it work of Digital Signature?

The technology behind PKI includes some very complex mathematical. It includes discovering the aspects of very lengthy prime numbers. These factors are utilized to create public key and private key. The private key is kept totally private and is not allocated to anyone, while the public key is allocated commonly. Massages secured with the private key can only be decoded with the corresponding public key and messages secured with the public key can only be decoded by private key.

How can use of digital signing?

The concept is to take piece of digital information and using a statistical criteria estimate a large number known as a hash – a little Digital “fingerprint” created from any type of information data. The hashing operate should make an exclusive hash for any particular piece of information data. If the information data changes then the hash will also modify and we will know that the information has been interfered with.

A document of to digitally sign, we are estimate the hash of the document and then encode the hash using the private key. Since the information was secured with the private key, it can only be decoded with the corresponding public key. To confirm that the document (e.g. message) originated from that user, basically decipher the hash utilizing the commonly known public key, estimate a new hash from obtained document, and look at against the hash that was sent. If the hashes don’t coordinate we know that the document was interfered with. We know who sent the message because only that user has the private key utilized to encode the message.

How do you know the user sending the message is the user sending the message?

How do I know that the physicians are really a physician? That the attorney really knows the law? In the end, everything in protection depends upon believe in … but confirm. In the real world we have authorities that certify  that the physicians and attorneys ( instructor etc ) know what they are doing. The physician or attorneys has been released a certificate to exercise their craft. In an identical way PKI has the idea of a Certificate Authority (CA).
The customer safely makes a private key and the CA signatures the user public key with their private. These locations are their stamp/seal of approval the user certificates. The program is very intensely reliant on believe in placed in the Certificate Authority. If the private key of the CA is affected the whole PKI system is at threat since anyone could utilized that private key to create of Digital Signature Certificates (DSC). In the same way if the user loses his private key then anyone could electronically impersonate that user.


Add a Digital Signature to a Microsoft Excel Document

10 Oct

This demo guides you through the process of adding digital signatures to Excel documents. Both types of digital signatures are included: visible and non-visible.
Buy Online Digital Signature Certificate Provider in India.


Create a Free Digital Signature for Signing PDFs

10 Oct

Easily create and use a free digital signature for signing your PDF documents. …
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How to Create a Digital Signature in Adobe Acrobat Reader

10 Oct

If you’re about to enroll, you probably have a mountain of paperwork to do! We’ve tried to make it easier on you by giving you digital forms that you can quickly fill out and sign on the computer. Digital signatures can be tough to figure out the first time, though, so check out this video for a quick and dirty tutorial!

Tutorial via Community Care College

Required of Digital Signature Certificate

25 Sep


The digital Signature certificate requirements are necessary to be satisfied in situations where verification of Digital Signature Certificate is to be assured. Digital Signature Certificate are more generally known as public key Digital certificates, used substantially in the idea of cryptography.

These are generally digitally produced identification signatures or other types of information that affiliate unique key values to person or companies to create a history that cannot be copied and hence shows the unique existence of the entity.
This form of Digital Certificate is needed mostly for protection reasons, such that a tab is kept on public keys and corresponding location.

Digital Certificate of a Key Features:
The primary features that determine a digital signature certificate include:
SERIAL NUMBER: A unique number that helps identify the specific digital signature certificate.
SUBJECT: This is used for recognition of the particular entity – personl, company or an organization.
DIGITAL SIGNATURE ALGORITHM: It is a manifestation of the algorithm that creates and defines a digital signature.
DIGITAL SIGNATURE: The record for confirmation and/or authentication of the key is the digital signature.
ISSUES: It is the entity that problems the certificate and confirms all relevant details.
VALID FROM: Date of issue and beginning of credibility phrase of the digital signature certification.
VALID TO: End of validity or time frame of expiration of the certification.
USAGE OF KEY: Here in is mentioned the primary or basic purpose of preparing the digital signature certificate and area it would be used to.
PUBLIC KEY: The digital signature certificate is recognized by a public key.
THUMBPRINT ALGORITHM: This is a unique criteria that provides for hashing funtion on public key or Digital Signature Certificate.
THUMBPRINT: An shortened edition of the public key or digital signature certificate is provided by the hash, identified as thumbprint.
Classification of Digital Signature Certificate:
The digital certification requirements can be categorized on the reasons for source groups, that is, on the reasons for the nature and requirements of customers, such as:
Class 1: Individuals fall in this category, for which public key or digital certificate is prepared for emailing uses.
Class 2: Class 2 Digital Signature Certificate allows in making work light for various dealings for MCA ( Ministry of Corporate Affairs ) or Domain registrar of Companies(ROC), Earnings Tax Division and in some divisions of e-Tendering also.
Class 3: Digital Signature Certificate Class 3 can be obtained by Individual User or Authorized Individual on behalf of Org / Firm / Organization.

Digital Signature on PDF

19 Sep

By what means would you be able to apply an Digital signature Certificate to a PDF documents? First and foremost, it’s supportive to grasp the qualities and vulnerabilities of this well-known file format. At that point, you can attempt new online software that enables you to place legally-binding electronic signature on PDF documents.

The PDF Format of Digital Signature

Need is the mother of stroke of genius. This is correct of numerous technological improvements, incorporating the Portable Document Format.

The Portable Document Format – also called PDF – is a creation that was made out of a regular require. Organizations in the early 1990s needed an approach to share electronic documents that was autonomous of the hardware, software, and OS that their customers were utilizing at the time, and a software company called Adobe Systems goes in with a solutions.

The solution was the PDF, a first-of-its-kind file format that allowed people to retain formatting on the files they were sending regardless of the computer or operating system their intended recipient was using. PDFs were heralded as a breakthrough when they were released to the public in 1993, and they slowly began to change the way companies communicated internally and externally.

The solutions was the PDF, a first-of-its-kind file format that permitted individuals to hold organizing on the files they were sending regardless of the PC or operating system (OS) their proposed recipient was utilizing. PDFs were proclaimed as a leap forward when they were discharged to people in general in 1993, and they gradually started to change the way organizations conveyed inside and remotely.

Digital Signatures

By 2000, organizations of all sizes were often emailing PDF contracts and understandings to customers with directions on the best way to print, sign, and return those documents with a fax machine or scanner. As awkward as this process appears, it was a critical change over the accepted two-way postal mail contract exchange.

As the years went by, extra innovations were created that made it possible for PDFs to incorporate DS. In spite of the clear profits this furnished organizations that sent and accepted signature agreement to an everyday schedule, it was in no way, shape or form a secure technique for administering documents and transactions.

For one thing, clients and customers who appropriated PDF documents through email required to download particular software, for example Adobe Reader, before they could sign these documents in an Digital format. The software that was needed to apply DS was difficult for numerous individuals to utilize. Also despite the fact that a DS can serve as evidence that a document has been approved, it is not a visual representation of a hand-drawn Digital signature.

In fact, an Digital Signature Certificate is an encrypted certificate, inasmuch as an electronic Signature might be hand written in the same way as a customary signature. Despite the fact that DS can work well for inside organization operations, they are not viable for customers who need to execute document on a rare premise. These purchasers can’t be required to have admittance to unmanageable software suites and to know how to utilize confused of computer programs. For these regular use cases, electronic sign are the answer.

Electronic Signatures (e-Signature)

E-signature could be applied directly onto PDF online when an organization utilizes a top of the line Electronic Signatures stage.

Right signature, specifically, is a web-based system with an exclusive viewer that lets clients see, fill out, and sign PDF documents in any internet web browser. Individuals who are sent contracts and assertions to be signature electronically can fill out form fields and draw their hand written sign directly onto the PDF file without needing to download Adobe Reader or install whatever viable software. The framework is agreeable with the E-sign Act and UETA and processes legally-binding documents.

There are two of the keys to getting electronic document signed and returned rapidly are receptiveness and ease of use. The more downloads, additional items, and modules an individual requirements, the bring down the chances that he or she is going to be fruitful at signing and giving back an archive in an electronic format.

Cloud-based E-signature Software like Right signature have brought down the bar for buyers and made it less demanding for individuals to sign their names on PDF documents – expediting more signed contracts and finished assertions for organizations that actualize this ubiquitous technology.

How to generate and verify Digital Signatures & What is a Digital Signature Certificate?

31 Aug


Digital signatures are used to verify that electronic messages and information have originated from the correct sender and to unavoidably confirm that information was not messed around with or updated throughout move starting with one place then onto the next. The complex algorithms utilized to make such signatures are to a great degree complex—to such an extent that they are more troublesome to manufacture than an individual’s genuine signature.

Unambiguous necessities apply to making a legitimate advanced signature for utilization, however. The National Institute of Standards and Technology (NIST) created a report that describes the specific algorithms that must be utilized to create a Digital signature. This Digital Signature Standard (DSS) documentation is accessible in our Information Technology (IT) Downloads. The paper illustrates the explanations behind utilization, application of, and the usage for a Digital signature.

According to the document:

This Standard characterizes systems for Digital signature era that could be utilized for assurance of parallel information (normally called a message), and for the confirmation and approval of the aforementioned Digital signatures. Digital Signature approved of three techniques. The first techniques of Digital Signature Algorithm (DSA, Second techniques RSA advanced signature calculation and third techniques of Elliptic Curve Digital Signature Algorithm (ECDSA).

What is a Digital Signature Certificate?

A Digital Signature Certificate is a computerized likeness physical or paper authentication. Driver’s license or visa is a sample of physical authentication. Digital Certificate serves as verified of identity of a single person for a certain reason as a driving permit is a proof of somebody who is legally qualified to drive in that nation. Additionally, digital certificate is a proof of identity to access information or online service and to sign certain records digitally. Like physical documents are marked manually, e-form which is utilized for organization arrangement, e-filling and so forth is signed utilizing Digital Signature Certificate. Information Technology Act, 2000 accommodates the useing of Digital Signatures on the documents submitted in electronic form in order to security and authenticity. Signature by approved individual is required for any filings done by organizations under e- governance program.

Using of Digital Signature for sending and receiving digitally signed and encrypted mails, For carrying out secure web based transactions, e-filing income tax returns, submitting e-tendering, e-filing, e-procurement, For signing documents like MS-Word, Excel, PDF and For other functions in a paperless operation.

Class of Digital Signature: –

Digital Signature Class 2:  The identity of a person is verified against trusted pre verified data.

Digital Signature Class 3: The person has to be present in front of the registration authority and prove his identity. Either class of the digital signatures is required for e-filing.

Digital signature certificates are issued for a period of 1 or 2 years and are renewable on expiry. The price of digital signature certificates depends upon the Certification Agencies. The expense incorporates a USB token, cost of issuance and renewal require after the time of legitimacy.

Listed below are the Certification Agencies of Tata Consultancy (TCS), National Informatics Centre (NIC), IDRBT Certifying Authority, eMudhra, NCode Solutions, MTNL Trust Line, Central Excise and Customs.


Digital Signature Certificate

17 Jun

Digital Signature Certificate

A digital signature authenticates electronic documents in a similar manner a handwritten signature authenticates printed documents. This signature cannot be forged and it asserts that a named person wrote or otherwise agreed to the document to which the signature is attached. For More Info Please Contact Us