The Rivest-Shamir-Adleman algorithm is the form of public key encryption most widely used today, particularly for authentication using a digital signature and key exchange prior to use of private key encryption.
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Royal Society of Arts (see OCR)
Royal Society of Arts
A public key cryptosystem named by its inventors, Rivest, Shamir and Adelman, who hold the patent.
[cryptosystem] RSA is one of the first practicable public-key cryptosystems and is widely used for secure data transmission. In such a cryptosystem, the encryption key is public and differs from the decryption key which is kept secret. In RSA, this asymmetry is based on the practical difficulty of factoring the product of two large prime nu... Found on http://en.wikipedia.org/wiki/RSA_(cryptosystem)