Abstract: An apparatus to facilitate hardware enhancements for double precision systolic support is disclosed. The apparatus includes matrix acceleration hardware having double-precision (DP) matrix multiplication circuitry including a multiplier circuits to multiply pairs of input source operands in a DP floating-point format; adders to receive multiplier outputs from the multiplier circuits and accumulate the multiplier outputs in a high precision intermediate format; an accumulator circuit to accumulate adder outputs from the adders with at least one of a third global source operand on a first pass of the DP matrix multiplication circuitry or an intermediate result from the first pass on a second pass of the DP matrix multiplication circuitry, wherein the accumulator circuit to generate an accumulator output in the high precision intermediate format; and a down conversion and rounding circuit to down convert and round an output of the second pass as final result in the DP floating-point format.

Abstract: Method and apparatus for enabling authentication of on-line communications. In some embodiments, a message code is embedded in an e-mail, where the message code can be used by the recipient to verify the authenticity of the e-mail or of a Web site. In some embodiments, this code can be created for a particular e-mail message; in other embodiments, the code is created as a watermark for use by a customer or other a specific user or recipient. The message code is associated with both the e-mail message and the recipient. In the case of a message-specific code, a recipient can verify the e-mail message by inputting the code via a Web server to be looked up in the database. Provision is also made for including stenographic information in graphical or other codes as further authentication when accessing a Web site.

Abstract: Method and apparatus for enabling authentication of on-line communications. In some embodiments, a message code is embedded in an e-mail, where the message code can be used by the recipient to verify the authenticity of the e-mail or of a Web site. In some embodiments, this code can be created for a particular e-mail message; in other embodiments, the code is created as a watermark for use by a customer or other a specific user or recipient. The message code is associated with both the e-mail message and the recipient. In the case of a message-specific code, a recipient can verify the e-mail message by inputting the code via a Web server to be looked up in the database. Provision is also made for including stenographic information in graphical or other codes as further authentication when accessing a Web site.

Abstract: Method and apparatus for enabling authentication of on-line communications. In some embodiments, a message code is embedded in an e-mail, where the message code can be used by the recipient to verify the authenticity of the e-mail or of a Web site. In some embodiments, this code can be created for a particular e-mail message; in other embodiments, the code is created as a watermark for use by a customer or other a specific user or recipient. The message code is associated with both the e-mail message and the recipient. In the case of a message-specific code, a recipient can verify the e-mail message by inputting the code via a Web server to be looked up in the database. Provision is also made for including steganographic information in graphical or other codes as further authentication when accessing a Web site.