US 10,122,691 B2Granted

Receiving apparatus and packet processing method thereof

AssigneeRealtek Semiconductor Corp.

InventorsChia-Hung Lin, Chang-Shiuan Yang, Yi-Huei Lei, Chun-Hao Lin

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Abstract

The present disclosure provides a receiving apparatus for preprocessing at least one segment data packet to a data packet. The receiving apparatus includes a packet parser, a data memory, a decrypt engine, a transmission engine, a header processing unit and a controller. The packet parser fetches segment-packet-header information from a segment packet header of each segment data packet. The decrypt engine decrypts an encrypted data of each segment data packet to obtain a segment payload and a QUIC private header including sequence information. The transmission engine transmits the segment payload to a specific location of a system memory. The header processing unit calculates packet information and updates the segment packet header stored in the data memory to generate a packet header. The controller controls the transmission engine based on the sequence information to output the packet header to the system memory for generating the data packet.

Claims19

Dependent claims

A receiving apparatus, configured to receive at least one segment data packet, and to preprocess at least one segment data packet to a data packet, comprising:

a packet parser, configured to fetch at least one set of segment-packet-header information from a segment packet header of the at least one segment data packet, wherein the at least one segment data packet is a QUIC packet according to the corresponding segment-packet-header information;
a data memory, configured to store the at least one segment packet header;
a decrypt engine, configured to selectively decrypt an encrypted data of each segment data packet to obtain at least one QUIC private header and at least one segment payload, wherein each QUIC private header includes sequence information of the corresponding segment data packet;
a transmission engine, configured to transmit the at least one segment payload to at least one specific location of a system memory;
a header processing unit, configured to calculate packet information based upon the at least one QUIC private header, and to update the at least one segment packet header stored in the data memory to generate a packet header;
and
a controller, configured to control the transmission engine based on the sequence information to output the packet header to the system memory for generating the data packet by combining the packet header with the at least one segment payload.

4 more elements

A packet processing method, adapted for a receiving apparatus, wherein the receiving apparatus is configured to receive at least one segment data packet, and to preprocess at least one segment data packet to a data packet, and the packet processing method comprises:

step A:
receiving at least one segment data packet, and fetching at least one set of segment-packet-header information from a segment packet header of the at least one segment data packet;
step B:
storing the at least one segment packet header in a data memory of the receiving apparatus;
step C:
selectively decrypting an encrypted data of each segment data packet to obtain at least one QUIC private header and at least one segment payload, wherein each QUIC private header includes sequence information of the corresponding segment data packet;
step D:
transmitting the at least one segment payload to the at least one specific location of a system memory;
step E:
calculating packet information based upon the at least one QUIC private header, and updating the at least one segment packet header stored in the data memory to generate a packet header;
and
step F:
outputting the packet header to the system memory based on the sequence information to generate the data packet by combining the packet header with the at least one segment payload,
wherein the step A further comprises the following steps:
step A-1:
determining whether one of the at least one segment data packet is a QUIC packet according to the corresponding segment-packet-header information;
and
step A-2:
if the one of the at least one segment data packet is the QUIC packet, storing the corresponding segment-packet-header information, and decrypting the encrypted data of the one of the at least one segment data packet.

16 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/203,445Filed 6 Jul 2016
Priority: TW 104142667 A18 Dec 2015
Published: US 2017/0180329 A122 Jun 2017
Granted: 6 Nov 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

H04L 63/0428
For providing a confidential data exchange among entities communicating through data packet networks: wherein the data content is protected, e.g.…
G06F 11/1004
Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's: to protect a block of data words, e.g. CRC or…
G06F 12/1408
Protection against unauthorised use of memory or access to memory: by using cryptography
H04L 63/0435
Wherein the data content is protected, e.g. by encrypting or encapsulating the payload: wherein the sending and receiving network entities apply…

Family

US 2017/0180329 A1Pre-grant publication · published 22 Jun 2017
US 10,122,691 B2This patent

From the US filing history. Foreign family members aren’t listed.

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