# RSA

Also found in: Dictionary, Thesaurus, Medical, Financial, Acronyms, Wikipedia.

## RSA

(cryptography, company)
(The initials of the authors)

1. RSA Data Security, Inc.

2. Their cryptography systems, especially RSA encryption.

The RSA algorithm was first described in the paper:

[R. Rivest, A. Shamir, L. Adleman, "A Method for Obtaining Digital Signatures and Public-key Cryptosystems". CACM 21,2; 1978]

## RSA

(1) (Rural Service Area) See MSA.

(2) (Rivest-Shamir-Adleman) A highly secure cryptography method by RSA Security, Inc., Bedford, MA (www.rsa.com), a division of EMC Corporation since 2006. It uses a two-part key. The private key is kept by the owner; the public key is published.

Data are encrypted by using the recipient's public key, which can only be decrypted by the recipient's private key. RSA is very computation intensive, thus it is often used to create a digital envelope, which holds an RSA-encrypted DES key and DES-encrypted data. This method encrypts the secret DES key so that it can be transmitted over the network, but encrypts and decrypts the actual message using the much faster DES algorithm.

RSA is also used for authentication by creating a digital signature. In this case, the sender's private key is used for encryption, and the sender's public key is used for decryption. See digital signature.

The RSA algorithm is also implemented in hardware. As RSA chips get faster, RSA encoding and decoding add less overhead to the operation. See cryptography and digital certificate.

Secret Key Vs. Public Key The secret method uses the same key to encrypt and decrypt. The problem is transmitting the key to someone so they can use it. The public key method uses two keys. One kept secret and never transmitted, and the other made public. Sometimes the public key method is used to send the secret key of the private method, and then the message is sent using the private key method.
References in periodicals archive ?
Major support for IRS continued as a partnership between the state VR agencies and RSA and, for the first time, universities participated as prime study group coordinators.
And there are numerous other ways in which the RSA has saved owners money in the last year.
RSA, RSA Secured and SecurID are registered trademarks of RSA Security Inc.
The CSAVR and RSA commit their respective resources to the accomplishment of these Strategies and Actions within the time deadlines agreed upon.
The RSA is committed to providing an ever-growing scope of leadership and services in response to the needs of the housing industry.
In October 1973, a delegation from the Navajo Tribal Council and Arizona RSA met with RSA Region IX staff in San Francisco; eventally, this culminated in an RSA Innovation and Establishment Grant being awarded to the Navajo Tribe.
The Diversinet solution is the first CT-KIP provisioning server to integrate with RSA Authentication Manager technology, and it offers a highly secure way for organizations to extend their existing RSA SecurID deployments in the form of cost-effective software authenticators," said Stuart Vaeth, chief security officer and vice president of business development for Diversinet.
The RSA SecurID enabled authentication capabilities will be added to an already rich set of plusID communication protocols that allow plusID to be used with organizations' existing physical and logical (IT) security infrastructure.
RSA and the RSA Conference logo are either registered trademarks or trademarks of RSA Security Inc.
The interoperability between RSA SecurID technology and Identiforce helps enable organizations to maximize network security by using their existing infrastructure for secure mobile and remote access with two-factor authentication from RSA, and integrate it into the tracking and controlling of individual user behavior on the network handled by Identiforce.
SafeGuard Easy interoperable with RSA SecurID([R]) SID800 hardware authenticator
RSA([R]) Conference today announced that Microsoft Founder Bill Gates and Oracle CEO Larry Ellison will lead a lineup of powerhouse keynote speakers at RSA Conference 2007.

Site: Follow: Share:
Open / Close