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How Public and Private Key
Cryptography Works?
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In Efficient digital e-sign XML software, a public and private key are created
simultaneously using the same algorithm (a popular one is known as RSA)
by a certificate authority (CA). The private key is given only to the
requesting party and the public key is made publicly available (as part
of a digital certificate) in a directory that all parties can access.
The private key is never shared with anyone or sent across the Internet.
You use the private key to decrypt text that has been encrypted with
your public key by someone else (who can find out what your public key
is from a public directory). Thus, if I send you a message, I can find
out your public key (but not your private key) from a central
administrator and encrypt a message to you using your public key. When
you receive it, you decrypt it with your private key. In addition to
encrypting messages (which ensures privacy), you can authenticate
yourself to me (so I know that it is really you who sent the message) by
using your Efficient digital e-sign XML software to encrypt a digital certificate.
Efficient digital
e-sign XML software,
Who Provides the
Infrastructure?
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A number of
Efficient digital e-sign XML software products are offered that
enable a company or group of companies to implement a PKI. The
acceleration of e-commerce and business-to-business commerce over the
Internet has increased the demand for PKI solutions. Related ideas are
the virtual private network (VPN) and the IP Security (IPsec) standard.
Among PKI
Efficient digital e-sign XML software leaders are:
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digital
signature software, which has developed the main
algorithms used by PKI vendors
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xml digital
signature, which acts as a
certificate authority and sells software that allows a company to
create its own certificate authorities
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legal digital
signature, which provides a PKI
implementation methodology and consultation service that it plans to
vend to other companies for a fixed price
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electronic
signature, whose Web Sentry product that
checks the revocation status of certificates on a server, using the
Online Certificate Status Protocol (OCSP)
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xml signature, whose
Directory Server product is said to support 50 million objects and
process 5,000 queries a second; Secure E-Commerce, which allows a
company or extranet manager to manage digital certificates; and
Meta-Directory, which can connect all corporate directories into a
single directory for
Efficient digital e-sign XML software security management
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