Important: Use custom search function to get better results from our thousands of pages

Use " " for compulsory search eg:"electronics seminar" , use -" " for filter something eg: "electronics seminar" -"/tag/" (used for exclude results from tag pages)
Tags: Digital S, digital signature certificate, digital signature creator, digital signature capture, digital signature certificate free, digital signature contract, digital signature cac, digital signature capture device, digital signature cac card, digital signature cannot be verified, digital signature definition, digital signature disclaimer, digital signature disclosure, digital signature device, digital signature digest, digital signature disclaimer example, digital signature download, digital signature document,
Ask More Info Of  A Seminar Ask More Info Of A Project Post Reply  Follow us on Twitter
07-04-2009, 08:54 PM
Post: #1
Digital Signature Full Seminar Report Download
Digital Signature

Abstract :

The authenticity of many legal, financial, and other documents is determined by the presence or absence of an authorized handwritten signature. The recipient of the signed document can verify the claimed identity of the sender using the signature. Also, if the sender later repudiates the contents of the document, then recipient can use the signature to prove the validity of the document.

With the computerized message systems replacing the physical transport of paper and ink documents, an effective solution for authentication of the electronic data is necessary. Various methods have been devised to solve this problem, but the use of Ëœdigital signatureâ„¢ is definitely the best solution amongst them.

A digital signature is nothing but an attachment to any piece of electronic information, which represents the content of the document and the identity of the originator of that document uniquely. The digital signature is intended for use in electronic mail, electronic funds transfer, electronic data interchange, software distribution, data storage, and other applications which require data integrity assurance and data origin authentication.

When a message is received, the recipient may desire to verify that the message has not been altered in transit. Furthermore, the recipient may wish to be certain of the originator's identity. Both of these services can be provided by the digital signature. A digital signature is an electronic analogue of a written signature in that the digital signature can be used in proving to the recipient or a third party that the message was, in fact, signed by the originator. Digital signatures may also be generated for stored data and programs so that the integrity of the data and programs may be verified at any later time.

Although there are various approaches to implement the digital signature, this report discusses the ËœDigital Signature Standardâ„¢. It specifies the Digital Signature Algorithm (DSA) which is appropriate for applications requiring a digital rather than written signature. The DSA is considered as the standard procedure to generate and verify digital signatures. A DSA digital signature is a pair of large numbers represented in a computer as strings of binary digits.

Full Seminar Report Download

http://rapidsharefiles/190047670/Digital_Signature.rar

Please Use Search http://www.seminarprojects.com/search.php wisely To Get More Information About A Seminar Or Project Topic
04-03-2011, 12:58 AM
Post: #2
RE: Digital Signature Full Seminar Report Download
this report is very help full for me
04-03-2011, 01:05 AM
Post: #3
RE: Digital Signature Full Seminar Report Download
i am happy for this report
04-03-2011, 01:23 AM
Post: #4
RE: Digital Signature Full Seminar Report Download
Hearti happy for your report this incerse my knowledge
29-03-2011, 02:21 PM
Post: #5
RE: Digital Signature Full Seminar Report Download
Presented by :
SNIGDHA ADHIKARY


.ppt  30742303-Digital-Signature-PPT.ppt (Size: 599 KB / Downloads: 295)
Why do we need Digital Signature ???
 A MAC can provide message integrity and message authentication.
 MAC has a drawback. It needs a symmetric key that must be establish between the sender and the receiver.
 A digital signature on the other hand, can use a pair of asymmetric key (one public and a private key).
What is Digital signature ???
 A digital signature is a mathematical scheme for demonstrating the authenticity of a digital message or document.
 A valid digital signature gives a recipient reason to believe that the message was created by a known sender, and was not altered in transit.
 Digital signatures are commonly used for software distribution, financial transactions, and in cases where it is important to detect forgery and tampering .
Various methods of employing Digital Signature:-
 Using asymmetric –key Cipher.
 Using Keyed Hash function.
Public key Cryptography
• Public-key cryptography involves the use of asymmetric key algorithms.
• Asymmetric key algorithms used to create a mathematically related key pair.
• A secret Private key and a published Public key.
• Protects the confidentiality and integrity of a message.
• The message is Encrypted using the Public key, which can only be Decrypted using the Private key.
Digital Signature using Keyed Hash Function:
The electronics/equivalent of the document and finger print pair is the message and digest pair. To preserve the integrity of a message. The message is passed through an algorithm, called hash function.
The hashed function creates a compressed image of the message that can be used as a fingerprint.
 For compatibility.
 For integrity.
 For efficiency.
Cryptographic protocol
 Cryptographic protocol or Encryption protocol is an abstract or concrete protocol performing a security-related function and applies cryptographic methods. A cryptographic protocol usually incorporates at least some of these aspects:
 Key agreement or establishment.
 Entity authentication.
 Symmetric encryption and message authentication material construction.
 Secured application-level data transport.
 Non-repudiation methods.
Uses of digital signatures
1. Authentication.
2. Integrity .
Additional security precautions:-
1. Putting the private key on a smart card.
2. Using smart card readers with a separate keyboard.
3. Other smart card designs.
4. Using digital signatures only with trusted applications.
FUTURE SCENARIO
 Digital encryption of data is useful during storage and retrieval of medical history of patients involved in e-Health programs.
 The growth of e-commerce and the recent enactment of the Electronic Signatures in Global and National Commerce Act (E-Sign Act) has opened a new frontier.
 With this constant development key management is becoming an issue.
 Advancements in HotJava and JavaPlugin based technologies will maintain fluidity and flexibility in key management.
17-05-2011, 07:07 PM
Post: #6
RE: Digital Signature Full Seminar Report Download
hi can i get the report , i mean document for the same ...
19-05-2011, 02:00 PM
Post: #7
RE: Digital Signature Full Seminar Report Download
plz send a full report to my email - fruit_ooi10[at]yahoo.com. thank~
19-05-2011, 10:47 PM
Post: #8
RE: Digital Signature Full Seminar Report Download
More details of digital signature is available in this thread:
http://www.seminarprojectsThread-digital-signature-full-report
23-05-2011, 04:16 AM
Post: #9
RE: Digital Signature Full Seminar Report Download
i couldnt download the documents due to the link given.am specially appealing for a better link for the download...............thanks
23-05-2011, 09:31 AM
Post: #10
RE: Digital Signature Full Seminar Report Download
Hi,
If it was downloading trouble here is the same report reposted:

.doc  digitalsignature full report.doc (Size: 186 KB / Downloads: 77)
26-05-2011, 10:14 PM
Post: #11
RE: Digital Signature Full Seminar Report Download
i read through your post and is the most advance topic i have read. pls i would love if i can get it in full in doc format. solomyn2002[at]yahoo.com that is my email.
thank you.
28-07-2011, 11:14 AM
Post: #12
RE: Digital Signature Full Seminar Report Download

.ppt  digital signature prepared.ppt (Size: 315.5 KB / Downloads: 80)
What Are Signatures?
Signature For Evidence:

A signature authenticates writing by identifying the signer with the signed document. When the signer makes a mark in a distinctive manner, the writing becomes attributable to the signer.
Why Digital Signatures Are Needed?
Now in computer age where every thing is happening lightning fast the computer base information is utilized effectively then the paper counterpart.
Today it is not possible for us to reach every where in the world to sign a document.
We all know computer can read digital information.
In computer information stored as bits rather than as atoms of ink and paper can travel near the speed of light.
But it may be duplicated without limit and with insignificant cost.
Although the basic nature of transactions has not changed.
So legal and business communities must develop rules and practices, which use new technology to achieve and surpass the effects historically expected from paper forms.
Digital signatures are the solution of this problem.
Like the signature we use on written documents today, digital signatures are now being used to identify authors/co-signers of e-mail or electronic data.
How Does A Digital Signature Work?
A Digital Signature is created using a Digital Certificate.
How do Digital Certificates work?
A Digital Certificate binds a public key to an individual or organization. The binding of a public key to an individual or organization is certified by a trusted source (usually a Certification Authority or CA).
Digital Certificates are based on Public Key Cryptography, a scheme that uses public and private key pairs.
The private key is known only by the owner and is used to create a digital signature.
This key must be kept private at all times by the user.
The public key is widely known and is used to verify the digital signature.
When the owner of public key verify a digital signature, he\she can know the identify the person who has signed the message.
A public and private key is simply a pair of numbers.
This association is achieved in a Digital Certificate that binds the public key to an identity.
A Digital Certificate makes it possible to verify someone's claim that they have the right to use
A given key, helping to prevent people from using phony keys to impersonate other users.
Used in conjunction with encryption, Digital Certificates provide a more complete security solution, assuring the identity of all parties Involved in a transaction.
How Digital Signature Is Created ?
To sign a document or any other item of information, the signer first delimits precisely the borders of what is to be signed.
The delimited information to be signed is termed as message .
Then a hash function in the signer’s software computes a hash unique result (for all practical purposes) to the message. The signer’s software then trans­forms the hash result into a digital signature using the signer’s private key.
The resulting digital signature is thus unique to both the message and the private key used to create it.
Who Can Use A Digital Certificate?
Anyone who does transactions over the Internet and wants those to be secured.
For example
Imagine that you are employee of a company that has a website/network with restricted access, than you will probably need a Digital Certificate to authenticate yourself on this website.
If you are tired of queuing in a bank? You want to do Home Banking? Then you also need a Certificate to authenticate yourself.
If you are developing ActiveX, or Java Applets? Then also you need a Certificate to digitally sign your applet and have people trust it!
What Is Cryptography?
Cryptography is the science of transforming information from readable (in plaintext) to information which is not readable.
In this process, information is coded (encryption) to stop it from being read or altered by anyone but the intended recipient. It may be intercepted, but it will not be intelligible to someone without the ability to decode (decryption) the message.
Encryption and decryption require a mathematical formula or "algorithm" to convert data between readable and encoded formats and a key.
What Is Public Key Cryptography?
In a public key cryptography system, two keys are required in order for two parties to exchange information in a secure fashion: a public key and a private key.
If one key is used to encrypt a message, then only the other key in the pair can be used to decrypt it.
Although the keys of the public and private key pair are mathematically related, it is computationally infeasible to derive one key from the other, so the private key is protected from duplication or forgery even when someone knows the public key.
Therefore, it is safe to openly distribute your public key for everyone to use, but it is essential that your private key remains closely guarded and secret.
The public key can be used to verify a message signed with the private key or encrypt messages that can only be decrypted using the private key.
If someone wants to send you an encrypted message, they encrypt the message with your public key and you, being the sole possessor of the corresponding private key of the pair, are the only one who can decrypt it.
What Is Key?
A key is a single numeric value that is part of an algorithm for encrypting text.
It is a sequence of characters used to encode and decode a file.
For a symmetric key algorithm, the same key is used for both encryption and decryption. For public key algorithms, the publicly known key can only encrypt the messages, the privately held key must be used to decrypt the messages.
What Kind Of Keys Are Used In Digital Signatures?
Digital signatures use public key cryptography.
i.e Two keys are used to encrypt and decrypt a message.
A Digital Signature is created using a person's "private" key. The recipient checks the signature using that person's "public" key.
24-09-2011, 06:27 PM
Post: #13
RE: Digital Signature Full Seminar Report Download
thanks......this is very helpful
26-09-2011, 08:33 AM
Post: #14
RE: Digital Signature Full Seminar Report Download
jdkjiaa ouish ,MNhjx jynbc jkdoi;
26-09-2011, 01:55 PM
Post: #15
RE: Digital Signature Full Seminar Report Download
to get more information about the topic "Digital Signature Full Seminar Report Download" please refer the link bellow
http://www.seminarprojectsThread-digital-signature-full-seminar-report-download?pid=56911#pid56911

http://www.seminarprojectsThread-digital-signature-full-seminar-report-download
14-02-2012, 01:27 PM
Post: #16
RE: Digital Signature Full Seminar Report Download
to get information about the topic digital signature full report ,ppt and related topic refer the link bellow

http://www.seminarprojectsThread-digital-signature-full-seminar-report-download

http://www.seminarprojectsThread-digital-signature-full-report

http://www.seminarprojectsThread-digital-signature-guidelines-download-full-seminar-report

http://www.seminarprojectsThread-a-new-forward-secure-digital-signature-scheme

http://www.seminarprojectsThread-digital-signature-full-seminar-report-download?page=2

http://www.seminarprojectsThread-cryptography-and-digital-signature

http://www.seminarprojectsThread-public-key-encryption-and-digital-signature
06-11-2012, 02:16 PM
Post: #17
RE: Digital Signature Full Seminar Report Download
[/font][font=Times New Roman]

i need digital signature report.also i need arbitrated digital signature..
13-12-2012, 11:46 AM
Post: #18
RE: Digital Signature Full Seminar Report Download
to get information about the topic "digital signature" related topic refer the link bellow

http://www.seminarprojectsThread-digital-signature-full-seminar-report-download

http://www.seminarprojectsThread-digital-signature-full-report

http://www.seminarprojectsThread-digital-signature-guidelines-download-full-seminar-report

http://www.seminarprojectsThread-a-new-forward-secure-digital-signature-scheme

http://www.seminarprojectsThread-digital-signature-full-seminar-report-download?page=2

http://www.seminarprojectsThread-cryptography-and-digital-signature

http://www.seminarprojectsThread-public-key-encryption-and-digital-signature
13-12-2012, 04:50 PM
Post: #19
RE: Digital Signature Full Seminar Report Download
thanks dude....


if you get this project i m very obliged to you
21-05-2013, 12:35 PM
Post: #20
RE: Digital Signature Full Seminar Report Download
Digital Signature


.doc  Digital Signature.doc (Size: 186 KB / Downloads: 19)

INTRODUCTION

Digital signature is a sort of Cryptography. Cryptography means keeping communications private. It is a practical art of converting messages or data into a different form, such that no one read them without having access to the ‘key’. The message may be converted using a ‘code’ (in which case each character or group of characters is substituted by an alternative one), or ‘cipher’ (in which case the message as a whole is converted, rather than individual characters). It deals with encryption, decryption and authentication.
There are two types of Cryptography-
1.Secret key or Symmetric Cryptography
2. Public key or Asymmetric Cryptography
In Symmetric Cryptography the sender and receiver of a message know and use the same secret key to encrypt the message, and the receiver uses same key to decrypt the message.
Asymmetric (or public key) Cryptography involves two related keys, one of which only the owner knows (the 'private key') and the other which anyone can know (the 'public key').

Why Digital Signature:

Message authentication protects two parties who exchange messages from any third party. However it does not protect two parties against each other. Several forms of disputes between the two are possible.
For example suppose that john sends an authenticated message to Mary,using one of the schemes.Following dispute that could arise :
1. Mary may forge a different message and claim that it can come from John.Mary would simply have to create a message and append an authentication code using the key that John and Mary share.
2. John can deny sending the message.Because it is possible for Mary to forge a message there is no way to prove that John did in fact send the message.
Both scenarios are of legitmate concern.Here is an example of the first scenario:An electronic fund transfer take place and the receiver increases the amount of fund transferred and claims that larger amount had arrived from the sender.An example of the second scenarios is that an electronic mail message contains instruction to a stockbroker for a transdaction that subsequently turns out badly.The sender pretend that the message never sent.

Requirements :

On the basis of these prpperties ,we can formulate the following reqirements for a digital signature:
• The signature must be a bit pattern that depends on the message of being signed.
• The signature must use some information uniqe to sender ,to prevent both forgery and denial.
• It must be relatively easy to produce the digital signature .
• It must be relatively easy to recognize and verify the digital signature.
• It must be computationally infeasible to forge a digital signature ,either by constructing a new massage for an existing digital signature or by constructing a fraudulent digital signature for a given message.
• It must be practical to return a copy of the digital signature in storage.
A secure hash function ,embedded in a scheme such as that of figure satifies these reqirements.

What is digital signature:

Basically, the idea behind digital signatures is the same as your handwritten signature. You use it to authenticate the fact that you promised something that you can't take back later. A digital signature doesn't involve signing something with a pen and paper then sending it over the Internet. But like a paper signature, it attaches the identity of the signer to a transaction. Having a digital certificate is like using your driver's license to verify your identity. You may have obtained your license from Maryland, for example, but your Maryland license lets you drive in Nevada and Florida. Similarly, your digital certificate proves your online identity to anybody who accepts it.

Direct digital signature:

A direct digital signature involves only the communication parties (source and destination). It is assumed that the destination knows the public key of the source. A digital signature may be formed by encrypting the entire message with the sender’s private key or by encrypting the hash code of the message with the sender’s private key.
Confidentiality can be provided by further encrypting the entire message plus signature with either the receiver’s public key or a shared secret key. It is important to perform the signature function first and then an outer confidentiality function. In case of dispute some third party must view the message and signature. If the signature is calculated on an encrypted message, the third party also needs access to the decryption key to read the original message.

Arbitrated digital signature:

The problems associated with direct digital signatures can be addressed by using an arbiter. As with direct signature schemes, there are a variety of arbitrated signature schemes. In general terms, these all operate as follows: every signed message from sender X to the receiver Y goes first to the arbiter A, who subjects the message and its signature to the number of tests to check its origin and content. The message is then dated and sends to Y with an indication that it has been verified to the satisfaction of the arbiter. With the presence of arbiter A, there are no chances of a sender X to disowning the message, as is the case with the direct digital signatures.
The arbiter plays a crucial role in arbitrated digital signatures and all parties must have a great deal of trust that the arbitration mechanism working properly. The use of a trusted system might satisfy this requirement.

HOW THE TECHNOLOGY WORKS :

Digital signatures require the use of public-key cryptography .If you are going to sign something, digitally, you need to obtain both a public key and a private key. The private key is something you keep entirely to yourself. You sign the document using your private key- which is really just a kind of code-then you give the person (the merchant of the website where you bought something or the bank lending your money to buy a house) who needs to verify your signature your corresponding public key. He uses your public key to make sure you are who you say you are. The public key and private key are related, but only mathematically, so knowing your private key. In fact, it’s nearly impossible to figure out your private key from your public key.

DIGITAL SIGNATURE STANDARD :

The National Institute of Standards and Technology has published Federal Information processing standards Publications (FIPS PUBS), known as digital signature standard. The DSS makes use of the Secure Hash Algorithm (SHA) and present a new digital signature technique called the Digital Signature Algorithm (DSA) appropriate for applications requiring a digital rather than written signature. The DSA digital signature is a pair of large numbers represented in a computer as strings of binary digits. The digital signature is computed using a set of rules (i.e., the DSA) and a set of parameters such that the identity of the signatory and integrity of the data can be verified. The DSA provides the capability to generate and verify signatures. Signature generation makes use of a private key to generate a digital signature. Signature Verification makes use of a public key, which corresponds to, but is not the same as, the private key. Each user possesses a private and public key pair. Public keys are assumed signatures for stored as well as transmitted data. Anyone can verify the signature of a user by employing that user's public key. Signature generation can be performed only by the possessor of the user's private key.
A hash function is used in the signature generation process to obtain a condensed version of data, called a message digest (see Figure 1). The message digest is then input to the DSA to generate the digital signature. The digital signature is sent to the intended verifier along with the signed data (often called the message). The verifier of the message and signature verifies the signature by using the sender's public key. The same hash function must also be used in the verification process. The hash function is specified in a separate standard, the Secure Hash Standard (SHS), FIPS 180. Similar procedures may be used to generate and verify signatures for stored as well as transmitted data.

DIGITAL SIGNATURE GENERATION:

To begin with the process, a check (message) must be created. In order to create a digital signature with the check, a process known as “hash function must occur. The hash function is a mathematical algorithm that creates a digital representation or fingerprint in the form of a hash result or message digest. The hash function generally has a standard length that is usually much smaller than the message but nevertheless substantially unique to it. Hash functions ensure that there have been no modifications to the check since it was digitally signed.
The next step is to encrypt the check and signature. The sender’ signature software transforms the result into a digital signature using the sender private key. The resulting signature is thus unique to both the message and the private key used to create it. Typically, a digital-signature is appended to its message and stored or transmitted with the message. However, it may also be sent or stored as a separate data element, so long as it maintains a reliable association with its message. Since a digital signature is unique to its message, it is useless when wholly disassociated from the message.
Now the question arises how do one get a private and a public key? The answer is: You need to obtain something called a digital certificate. For that, you go to a certificate issuer, which will give you a digital certificate that says, in effect, "Here is Mike, and here is his public key. Anything he signs with his corresponding private key is valid." When you buy something online and digitally sign the transaction, you provide the merchant with your digital certificate. If the merchant trusts the issuer of the certificate, he uses the certificate to verify your signature. Often the authority that provides you with a digital certificate will also provide you with a private key. Certain computer systems will let you generate your own private key, but be careful! That is where the potential for fraud comes in. It's considered impossible to forge a digital signature the way one can forge a paper signature, but if you are careless with your private key—leaving it unprotected on your desktop, for instance—it's possible for you to compromise its integrity.
02-03-2014, 10:30 AM
Post: #21
RE: Digital Signature Full Seminar Report Download
pls send me the full seminar report on digital signature my emai id slekshmirakhi[at]gmail.com
22-04-2014, 09:19 PM
Post: #22
RE: Digital Signature Full Seminar Report Download
very good and simply understanding very nice

hi iam very happy this report gave me more information
22-04-2014, 09:25 PM
Post: #23
RE: Digital Signature Full Seminar Report Download
very nice and simple report on digital signature,

very good and simple seminor report on digital signature
its so good to understand.
thank you very much

very good and simple seminar report on digital signature
its so good to understand.
thank you very much
24-04-2014, 04:15 PM
Post: #24
RE: Digital Signature Full Seminar Report Download
To get full information or details of Digital Signature please have a look on the pages


http://seminarprojectsThread-digital-signature-full-seminar-report-download

http://seminarprojectsThread-digital-signature-full-report

http://seminarprojectsThread-digital-signature-guidelines-download-full-seminar-report

http://seminarprojectsThread-a-new-forward-secure-digital-signature-scheme

http://seminarprojectsThread-cryptography-and-digital-signature




if you again feel trouble on Digital Signature please reply in that page and ask specific fields in Digital Signature
Rating Digital Signature Full Seminar Report Download Options
Share Digital Signature Full Seminar Report Download To Your Friends :- Seminar Topics Bookmark
Post Reply 

Marked Categories : seminar report, current project topic on digital signature, project report on digital signature and certificate, abstract for digital signature authentication, digital signature technical seminar report, report on digital signatur, seminar on digital signature, abstract on digital signature, abstract of digital signature, seminar report on digital signature, report on digital signature, seminar of digital signature, digital signature, digital signature presentation seminar documentation, digital signature ppt download, digital signature seminar documentation, ppt on digital signature it seminar, report on digital signature it seminar, digital signature report,

[-]
Quick Reply
Message
Type your reply to this message here.


Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Seminar report on Android mkaasees 0 0 09-11-2016 04:31 PM
Last Post: mkaasees
  A Seminar On Cloud Computing mkaasees 0 0 07-11-2016 04:16 PM
Last Post: mkaasees
  SEMINAR ON OSI MODEL mkaasees 0 0 03-11-2016 10:34 AM
Last Post: mkaasees
  Seminar Report On QR Code mkaasees 0 0 27-10-2016 09:54 AM
Last Post: mkaasees
  A SEMINAR ON ATM SECURITY mkaasees 0 0 26-10-2016 11:49 AM
Last Post: mkaasees
  Cellonics Seminar Report mkaasees 0 0 25-10-2016 11:15 AM
Last Post: mkaasees
  Seminar On Steganography mkaasees 0 0 14-10-2016 03:56 PM
Last Post: mkaasees
  mobile computing full report seminar topics 28 35,597 14-10-2016 02:33 PM
Last Post: jaseela123
  Seminar On DNS mkaasees 0 0 07-10-2016 03:13 PM
Last Post: mkaasees
  A SEMINAR ON 4G mkaasees 0 0 27-09-2016 03:02 PM
Last Post: mkaasees
This Page May Contain What is Digital Signature Full Seminar Report Download And Latest Information/News About Digital Signature Full Seminar Report Download,If Not ...Use Search to get more info about Digital Signature Full Seminar Report Download Or Ask Here

Options: