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XML Digital Signature
legal,
To verify a
xml digital
signature, the
verifier must have access to the signer's public key and have assurance
that it corresponds to the signer's private key.
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XML Digital Signature legal, a public and private key pair has no
intrinsic association with any person; it is simply a pair of numbers.
Some
convincing strategy is necessary to reliably associate a particular
person or entity to the key pair - XML Digital Signature legal.
In a transaction involving only two parties, each party can simply
communicate (by a relatively secure "out-of-band" channel such as a
courier or a secure voice telephone) the public key of the key pair each
party will use. Such an identification strategy is no small task,
especially when the parties are geographically distant from each other,
normally
conduct communication over a convenient but insecure channel such as
the Internet, are not natural persons but rather corporations or similar
artificial entities, and act through XML Digital Signature legal
agents whose authority must be ascertained.
XML Digital Signature legal, As
electronic commerce
increasingly moves from a bilateral setting to the many on many
architecture of the World Wide Web on the Internet, where significant
transactions will occur among strangers who have no prior contractual
relationship and will never deal with each other again, the problem of
authentication/non-repudiation becomes not merely one of efficiency, but
also of reliability. An open system of communication such as the
Internet needs a
system of identity authentication to handle this scenario. To that
end, a prospective signer might issue a public statement, such as:
"Signatures verifiable by the following public key are mine." However,
others doing business with the signer may for good reason be unwilling
to accept the statement, especially where there is no prior contract
establishing the legal effect (XML Digital Signature legal) of
that published statement with certainty.
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