US 11,943,339 B2
Information processing apparatus, information processing method, and program
Tatsuya Igarashi, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/430,817
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Jan. 21, 2020, PCT No. PCT/JP2020/001801
§ 371(c)(1), (2) Date Aug. 13, 2021,
PCT Pub. No. WO2020/170685, PCT Pub. Date Aug. 27, 2020.
Claims priority of application No. 2019-030632 (JP), filed on Feb. 22, 2019.
Prior Publication US 2022/0166609 A1, May 26, 2022
Int. Cl. H04L 9/08 (2006.01); H04L 9/32 (2006.01)
CPC H04L 9/0825 (2013.01) [H04L 9/0838 (2013.01); H04L 9/3236 (2013.01); H04L 9/3247 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An information processing apparatus comprising:
a key generating section that generates a public key and a private key of second data generated on a basis of at least one or more pieces of first data;
a certificate generating section that generates a certificate by using a private key of the first data to give an electronic signature to
the public key of the second data or an ID that is generated by using the public key of the second data and is capable of identifying the public key of the second data, and
the second data or data generated from the second data; and
a trace data processing section that adds, to the second data, the private key of the second data and trace data to be used for tracing a relation between the first data and the second data, wherein
the trace data includes the certificate generated by the certificate generating section and trace data added to the first data.