| 摘要 |
FIELD: information technology.SUBSTANCE: apparatus for guaranteeing integrity of real-time vehicle data comprises a data blocking unit for dividing input data streams on measurement information of a vehicle into data blocks of a predetermined size; an initial authentication data (IAD) generating unit for generating IAD by signing initial data blocks of the input data streams by a signing key; a first hashing unit for generating a first hash value of each of the divided data blocks in order, the first hashing unit generating a first hash value of the present data block by concatenating and hashing a value of the present data block and a first hash value of a previous data block; and a second hashing unit for generating a second hash value by hashing the first hash value of the present data block and outputting the second hash value as integrity verification data of the present data block, wherein the first hashing unit uses the IAD value as the first hash value of the initial data block.EFFECT: guaranteeing vehicle data integrity.15 cl, 6 dwg |
