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Digital e-signature
XML,
asymmetric cryptosystems
create and verify
digital signatures using different algorithms and
procedures, but share this overall operational pattern.
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The Digital e-signature XML processes of creating a digital
signature and verifying it accomplish the essential effects desired of a
signature for many legal purposes:
- Signer
authentication: If a public and private key pair is
associated with an identified signer, the
xml digital
signature attributes
the message to the signer. The digital signature cannot be forged,
unless the signer loses control of the private key, such as by
divulging it or losing the media or Digital e-signature XML device in which it is contained.
- Message
authentication: The digital signature also identifies the
signed message, typically with far greater certainty and precision
than paper signatures. Verification reveals any tampering, since the
comparison of the hash results shows whether the message is the same
as when signed.
- Affirmative
act: Creating a digital signature requires the signer to
use the signer's private key. This act can perform the "ceremonial"
function of alerting the signer to the fact that the signer is
consummating a transaction with legal consequences.
- Efficiency:
The processes of creating and verifying a digital signature
provide a high level of assurance that the digital signature is
genuinely the signer's. As with the case of
modern electronic data
interchange the creation and verification processes are capable of
complete automation, with human interaction required on an exception
basis only. Compared to paper methods such as checking specimen
signature cards methods so tedious and labor-intensive that they are
rarely actually used in practice digital signatures yield a high
degree of assurance without adding greatly to the resources required
for Digital e-signature XML processing.
Digital
e-signature XML,
The processes used for
digital signatures have undergone thorough technological peer review
for over a decade.
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Digital e-signature XML have been
accepted in several national and international standards developed in
cooperation with and accepted by many corporations, banks, and
government agencies. The likelihood of malfunction or a security problem
in a digital signature cryptosystem designed and implemented as
prescribed in the industry standards
is extremely remote, and is far less than the risk of undetected forgery
or alteration on paper or of using other less secure Digital
e-signature XML techniques.
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