Cryptography may sound like some obscure security concept of little relevance to civilians, but millions of people interact with public key
codes every day.
lt;p>When a sender creates an encrypted message, the IBE software on his system uses three parameters to generate the public key
for the message: a starting value, the current week number and the recipient's identity (normally the e-mail address).
Asymmetric Encryption differs from symmetric encryption in that uses two keys: a public key
known to everyone and a private key, or secret key, known only to the recipient of the message.
42-2001, Public Key
Cryptography For the Financial Services Industry: Agreement of Symmetric Keys Using Discrete Logarithm Cryptography, as an ANSI standard.
cryptography offers a way around the key exchange problem.
The public key
is disseminated widely so that anyone can use it to encode messages to its originator, who decodes them using his secret key.
The broad product line implements many security standards including AES, AES-CCM, AES-GCM, XEX-AES, secure hashing algorithms, Triple-DES and public key
cryptography for applications ranging from secure wireless communication, storage server to network devices
encryption is used to exchange the symmetric keys when a secure communication link is established.
In other words, what the public key
does, the secret key can undo.
Organizations that pay security more than just lip-service demand mandatory, mutual public key
authentication for their remote and mobile personnel," Russo added.
There's no need to keep the second key secret because, in principle, there should be no way to figure out the private-key from knowledge of the public key
Thus, everyone has a private key and a public key
, which they can then use to encrypt or decrypt messages.
XKMS, a cornerstone of Web applications security, adds public key
management to the W3C XML Security Framework.