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Digital Signature Guidelines - Tutorial (3098 words) |
 | Digital signatures use what is known as "public key cryptography," which employs an algorithm using two different but mathematically related "keys;" one for creating a digital signature or transforming data into a seemingly unintelligible form, and another key for verifying a digital signature or returning the message to its original form. |
| The complementary keys of an asymmetric cryptosystem for digital signatures are arbitrarily termed the private key, which is known only to the signer <20> and used to create the digital signature, and the public key, which is ordinarily more widely known and is used by a relying party to verify the digital signature. |
| Digital signature verification is the process of checking the digital signature by reference to the original message and a given public key, thereby determining whether the digital signa ture was created for that same message using the private key that corresponds to the referenced public key. |
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Digital Signatures (1627 words) |
| Digital signatures are a method of authenticating digital information analogous to ordinary physical signatures on paper, but implemented using techniques from the field of cryptography. |
| A digital signature is itself simply a sequence of bits conforming to one of a number of standards. |
| Whereas the existence of a digital signature can be evidentially significant in establishing that an electronic communication is uncorrupted, and that it had a certain provenance, it cannot of itself provide any evidence as to whether a particular individual intended or authorized or associated himself or herself with any such communication. |
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