| 摘要 |
PROBLEM TO BE SOLVED: To propose a new creating and verifying method of electronic signature for eliminating the problems of management and delivery of an array key. SOLUTION: A transmitting person S and a receiving person R own array keys As and Ar secret to each other, generate compressed document codes M'a and M'b by coding a compressed code string M'r obtained by matrix- compressing a document M, generate public key codes Kpa and Kpb by coding a public key Kp obtained by matrix-compressing a personal key Ks, generate signature authentication codesσ" andσ"b by code-adding the compressed document codes M'a and M'b and the public key codes Kpa and Kpb, generates received signature codesσa andσb by coding a received signatureσobtained by code-adding and matrix-compressing the document M and the personal key Ks, and inspects the correctness of a signature by comparing this signature authentication codesσ"a andσ"b and the received signature codesσa andσb. Similarly, received document codes Msa and Msb and document authentication codes Mra and Mrb are generated and compared to inspect the correctness of the document. |
