methods of assuring genuineness of digital (not handwritten) signatures, and preventing alteration
signatures for electronic documents. They establish identity and therefore can be used to establish legal responsibility and the complete authenticity of whatever they are affixed to -- in effect, creating a tamper-proof seal.
A Digital signature is a code that can be attached to any electronically transmitted message. As with a written signature, it is used to verify the identity of the sender. Digital signatures are an important element of electronic commerce and are essential for authentication. Of course, to work the signature must be distinct and impossible to copy, and there are various encryption techniques to deal with this effectively.
The bit string attached to the document to authenticate it when signed.
An electronic version of signing your name with a pen. The electronic signature is based on a user's identity and applies their identity to the signed data. Using electronic signatures allows you to know whether the data has changed since the signature was applied.
Like a paper signature, a digital signature is an electronic method of signing a document. However, digital signatures are more secure than paper signatures since they are more difficult (if not impossible) to forge. A digital signature provides verification to a recipient that a signed file is actually sent by the sender, and is not altered after it is signed.
A cryptographic piece of data that is attached to a piece of code. The piece of code could be program code, a Web Service, or XML messages. The Digital Signature is meant to provide assurance to the receiving user (end user) that what it is they are working with is unaltered or has its original integrity.
Digital signatures utilize public key cryptography and one-way hash functions to produce a signature of the data that can be authenticated, and is difficult to forge or repudiate.
Encrypted signatures to verify and authenticate electronic documents.
A technology used to validate a transaction's sender. This technology uses private-keys to digitally sign the data, and public-keys to verify the sender.
An authentic, unforgable protocols that use hash functions
Special code that can be attached to e-mail messages that is unique to a specific individual. Digital signatures do not protect messages from being altered. Like handwritten signatures, they simply provide one way of verifying the identity of an e-mailer. They can be combined with a variety of security and encryption features to help protect e-mail. Unfortunately, digital signatures are still not very user-friendly, so they do not make sense for widespread use, at present.
Digital signatures work just like paper-and-ink signatures, allowing document recipients to confirm the source of a document. Digital signatures are generated by digital certificates.
Please see the TechDesk Article Digital Signatures
An electronic signature, which cannot be forged. Instead it is generated from a computed digest of the text that is encrypted and sent with the text message. The recipient decrypts the signature and retrieves the digest from the received text. If the digests match, the message is authenticated and proved to be from the sender.
A piece of data that is sent with an encrypted message that identifies the originator and verifies that it has not been altered.
The electronic equivalent of written signatures that are used as an online method of identifying individuals or companies using Public key encryption .
A type of "seal" created using a chip card and based on encryption software. Digital signatures are used in electronic communication to provide a legal alternative to the handwritten signature. These are ideal, for example, for electronic tax returns, home banking and electronic transactions.
A form of electronic authentication of a digital document. Digital signatures are created and verified using public key cryptography and serve to tie the document being signed to the signer.
A digital code that can be attached to an electronically transmitted message that uniquely identifies the sender. Like a written signature, the purpose of a digital signature is to guarantee that the individual sending the message really is who he or she claims to be. Digital signatures are especially important for electronic commerce and are a key component of most authentication schemes. To be effective, digital signatures must be unforgeable. There are a number of different encryption techniques to guarantee this level of security.