Lsi Corporation

Anton I Sabev

Anatoli Aleksandrovich Bolotov

Mikhail I Grinchuk

Lav D Ivanovic

Paul G Filseth

A method of asymmetric key wrapping in a system is disclosed. The method generally includes the steps of (A) transferring a shared key from a key storage to a cipher operation, wherein the cipher operation comprises a symmetric-key cipher utilizing a cipher key, (B) generating an encrypted key by encrypting a decrypted key with the cipher operation using the shared key as the cipher key in a wrap-encrypt mode and (C) presenting the encrypted key external to the system in the wrap-encrypt mode.

Asymmetric key wrapping using a symmetric cipher

An architecture for a block cipher, where the architecture includes functional units that are logically reconfigurable so as to be able to both encrypt clear text into cipher text and decrypt cipher text into clear text using more than one block cipher mode based on at least one of advanced encryption standard and data encryption standard.

Multimode block cipher architectures

A method of manufacturing a device containing a key is disclosed. The method generally includes the steps of (A) fabricating a chip comprising a random number generator, a nonvolatile memory and a circuit, (B) applying electrical power to the chip to cause the random number generator to generate a signal conveying a sequence of random numbers, (C) commanding the chip to program a first arbitrary value among the random numbers into the nonvolatile memory, wherein the device is configured such that the first arbitrary value as stored in the nonvolatile memory is unreadable from external to the device and (D) packaging the chip.

Growing community of inventors

Santa Clara, CA, United States of America

Anton I Sabev