Seagate Technology Incorporated

Kian Beng Lim

Saravanan Nagarajan

Vipin Singh Sehrawat

Hamza Jeljeli

Foo Yee Yeo

Nino Wicaksono

Varun Reddy Boddu

Vincent Uy

Kwong Heng Alphonsus John Kwok

A method of rotating a set of keys, having a media encryption key (MEK) and a current media encryption key encryption key (MEKEK) encrypted and stored in a self-encrypting drive (SED) having data encrypted with the MEK (MEK(data)), includes decrypting the stored MEK and the current MEKEK. A new MEK (MEK') and a new MEKEK (MEKEK′) are generated. The MEKEK′ is encrypted to replace the current encrypted MEKEK. A concatenation of the MEK and the MEK′ is encrypted with MEKEK′. The encrypted data MEK(data) is re-encrypted with MEK′.

Updateable encryption in self encrypting drives

A method includes receiving, in a data storage device, a request from a client computer for a portion of ciphertext stored in the data storage device, and providing, by a controller of the data storage device, the portion of the ciphertext to the client computer. The method also includes receiving, in the data storage device, an update token generated by the client computer from the portion of the ciphertext. The method further includes performing, by the controller of the data storage device, re-encryption of the ciphertext using the update token.

Post-quantum secure key-rotation for storage devices

Tokenized assets with associated value are transferred from a designated server to a mobile device. The associated value is removed from the designated server. The tokenized assets are transferred to a first trusted electronic device. The first trusted electronic device is associated with the mobile device. At least a portion of the tokenized assets are transferred to a second trusted electronic device such that the portion of the tokenized assets are only stored on the second trusted electronic device after the transfer. The second electronic device is associated with a second mobile device. The transfer occurs at a time when both the mobile device and the electronic device are offline.

Offline value transfer using asymmetric cryptography

Secure distribution of data objects using a unique quantum-safe cryptographic key provided to a user requesting the data object that has been authenticated using a zero-knowledge authentication. A user may access the system by way of the zero-knowledge authentication to request access to a data object of a data library. The system may generate and associate a unique quantum-safe cryptographic key for the instance of the data library to be provided to the authenticated user. The data object is encrypted using the unique quantum-safe cryptographic key. The encrypted data object and the unique quantum-safe cryptographic key are provided to the authenticated user. Other instances of the data object may also be encrypted with other unique quantum-safe cryptographic keys. In turn, access to a unique quantum-safe cryptographic key may not be useful in decrypting other instances of the data object, and other data objects may not be decrypted using a given unique key for a given data object instance.

Growing community of inventors

Singapore, Singapore

Kian Beng Lim