Digital Signature, Electronic Signature, How digital signature works, Confidentiality of digital signature, Authenticity of digital signature, Integrity of digital signature, standard of digital signature, Algorithm of digital signature, Mathematical base of digital signature, parameters of digital signature, key computation of digital signature, key generation of digital signature, verification of of 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, such that the sender cannot deny having sent the message (authentication and non-repudiation) and that the message was not altered in transit (integrity). Digital signatures are commonly used for software distribution, financial transactions, and in other cases where it is important to detect forgery or tampering.
Digital signatures are often used to implement electronic signatures, a broader term that refers to any electronic data that carries the intent of a signature, but not all electronic signatures use digital signatures. In some countries, including the United States, India, and members of the European Union, electronic signatures have legal significance.
This PPT explains about the term "Cryptography - Encryption & Decryption". This PPT is for beginners and for intermediate developers who want to learn about Cryptography. I have also explained about the various classes which .Net provides for encryption and decryption and some other terms like "AES" and "DES".
This PPT provides an complete reference of "DIGITAL SIGNATURE". It gives "how the digital signature are works?" and "why we need a digital signature?". And also I include some Digital signature algorithm in a Diagrammatic format.
Today in modern era of internet we share some sensitive data to information transmission. but need to ensure security. So we focus on Cryptography modern technique for secure transmission of information over network.
Disgital Signature Algorithm which is used Hash value of a message when encrypted with the private key of a person is his digital signature on that e-Document.
Digital Signature of a person therefore varies from document to document thus ensuring authenticity of each word of that document.
As the public key of the signer is known, anybody can verify the message and the digital signature.
Digital Signature, Electronic Signature, How digital signature works, Confidentiality of digital signature, Authenticity of digital signature, Integrity of digital signature, standard of digital signature, Algorithm of digital signature, Mathematical base of digital signature, parameters of digital signature, key computation of digital signature, key generation of digital signature, verification of of 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, such that the sender cannot deny having sent the message (authentication and non-repudiation) and that the message was not altered in transit (integrity). Digital signatures are commonly used for software distribution, financial transactions, and in other cases where it is important to detect forgery or tampering.
Digital signatures are often used to implement electronic signatures, a broader term that refers to any electronic data that carries the intent of a signature, but not all electronic signatures use digital signatures. In some countries, including the United States, India, and members of the European Union, electronic signatures have legal significance.
This PPT explains about the term "Cryptography - Encryption & Decryption". This PPT is for beginners and for intermediate developers who want to learn about Cryptography. I have also explained about the various classes which .Net provides for encryption and decryption and some other terms like "AES" and "DES".
This PPT provides an complete reference of "DIGITAL SIGNATURE". It gives "how the digital signature are works?" and "why we need a digital signature?". And also I include some Digital signature algorithm in a Diagrammatic format.
Today in modern era of internet we share some sensitive data to information transmission. but need to ensure security. So we focus on Cryptography modern technique for secure transmission of information over network.
Disgital Signature Algorithm which is used Hash value of a message when encrypted with the private key of a person is his digital signature on that e-Document.
Digital Signature of a person therefore varies from document to document thus ensuring authenticity of each word of that document.
As the public key of the signer is known, anybody can verify the message and the digital signature.
Here in this blog forum, I am going to confer about the need for shifting from manual signature to digital signature through digital signature certificate.
The ultimate guide to digital signaturesCoSign by ARX
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2. Introduction
History
What is Digital Signature
Why Digital Signature
Basic Requirements
How the Technology Works
Approaches
3. Purpose of Digital Signature
Algorithm of Digital Signature
Challenges and Opportunities
Application
Drawbacks
Conclusion
4. The authenticity of many legal, financial, and other
documents is determined by the presence or absence of
an authorized handwritten signature.
Various methods have been devised to solve this
problem, but the use of ‘digital signature’ 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.
5. Use of signatures is recorded in the Talmud (fourth
century), complete with security procedures to prevent
the alteration of documents after they are signed.
The practice of authenticating documents by affixing
handwritten signatures began to be used within the
Roman Empire in the year AD 439, during the rule of
Valentinian III.
It is from this Roman usage of signatures that the
practice obtained its significance in Western legal
tradition.
6. Hash value of a message when encrypted
with the private key of a person is his
digital signature on that e-Document.
Digital Signature of a person therefore
varies from document to document thus
ensuring authenticity of each word of
that document.
As the public key of the signer is known,
anybody can verify the message and the
digital signature.
7. • To provide Authenticity, Integrity and
Non-repudiation to electronic documents
• To use the Internet as the safe and
secure medium for e-Commerce and e-
Governance
8. Private Key
The private key is one which is accessible only to the
signer. It is used to generate the digital signature which
is then attached to the message.
Public Key
The public key is made available to all those who
receive the signed messages from the sender. It is used
for verification of the received message.
9. Digital Signature Certificate
• A subscriber of the private key and public key
pair makes the public key available to all those
who are intended to receive the signed messages
from the subscriber.
• But in case of any dispute between the two sides,
there must be some entity with the receiver which
will allow the receiver of the message to prove that
the message was indeed sent by the subscriber of
the key pair. This can be done with the Digital
Signature Certificate.
15. Institutional overhead:
The cost of establishing and utilizing
certification authorities, repositories, and other
important services, as well as assuring quality
in the performance of their functions.
Subscriber and Relying Party Costs:
A digital signer will require software, and will
probably have to pay a certification authority
some price to issue a certificate. Hardware to
secure the subscriber's private key may also be
advisable.
16. Electronic Mail
Data storage
Electronic funds transfer
Software Distribution
17. The private key must be kept in a secured
manner.
The process of generation and verification of
digital signature requires considerable amount
of time.
For using the digital signature the user has to
obtain private and public key, the receiver has
to obtain the digital signature certificate also.
18. Digital signatures are difficult to understand.
Digital signatures will be championed by many
players that the public distrusts, including
national security agencies, law enforcement
agencies, and consumer marketing companies.