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XML Digital Signature,
use of
digital signatures usually involves two
processes, one performed by the signer and the other by the receiver of
the digital signature.
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Digital
signature or the XML Digital Signature creation uses a hash
result derived from and unique to both the signed message and a given
private key. For the hash result to be secure, there must be only a
negligible possibility that the same XML Digital Signature could
be created by the combination of any other message or private key.
XML Digital
Signature,
All about latest legal electronic solutions papers and new secure
xml articles: Digital
signature verification
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The XML Digital Signature
verification is the process of checking the digital signature and
signature software
by reference to the original message and a given public key, thereby
determining whether the digital signature was created for that same
message using the private key that corresponds to the referenced public
key.
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XML Digital Signature,
To sign a document or any
other item of information, the signer first delimits precisely the
borders of what is to be signed.
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The delimited XML Digital Signature information to be signed is
termed the "message" in these Guidelines. Then a hash function in the
signer's software computes a hash result unique (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. Typically, a
digital signature (a
digitally signed hash result of the message) is attached to its
message and stored or transmitted with its 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 if wholly disassociated from its
message, - XML Digital Signature.
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