Patent ID: 11909877
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 28:
29. The private-key decryption device of claim 2,
wherein the second raw key is a matrix,
wherein a masking the transmission key comprises adding bits of the transmission key to a most significant part of at least part of the elements of the second raw key matrix, and discarding zero or more least significant bits of the at least part of the elements of the second raw key matrix,
wherein the first raw key is a matrix,
wherein an unmasking the masked transmission key comprises discarding zero or more least significant bits of at least part of the elements of the first raw key matrix, subtracting the at least part of the elements of the first raw key matrix from the encapsulated data, and rounding the subtracting result.