Is RSAs encryption technology still secure?
Yes, RSA’s encryption technology is still secure. Last week’s announcement was about a weakness in an alternative format for preparing messages for RSA signatures that is not supported by RSA’s products. The weakness was related to the format, and not the RSA public-key algorithm itself. Today’s announcement is about a clever design for a hardware device that speeds up known methods of factoring large numbers, not a new method of attacking the RSA public-key algorithm. In both cases, the strength of the methods supported in RSA’s products and of the key sizes recommended by RSA Laboratories have been confirmed. RSA Laboratories will continue to report on these and similar developments.
