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CN105993043B 安全装置、其方法以及计算机可读取的记录介质 有权

安全装置、其方法以及计算机可读取的记录介质
摘要：
在分散处理中，安全装置(12)对处理信息(m)进行秘密分散而获得多个碎片信息(sn)(其中，n＝1,...,N)，并获得所获得的碎片信息(sn)基于映射(H)的像(H(sn))即验证信息(hn)，存储验证信息(hn)，并输出碎片信息(sn)。各碎片信息(sn)被存储于存储装置(13‑n)中。在恢复处理中，安全装置(12)接受恢复所需的碎片信息(sf(k))(其中，k＝1,...,K)的输入，比较被输入的碎片信息(sf(k))基于映射(H)的像(H(sf(k)))即第四验证信息、与被存储的验证信息(hf(k))，根据对应于与验证信息(hf(k))一致的第四验证信息(H(sf(k)))的碎片信息(sf(k))(其中，k＝1,...,K)而恢复处理信息(m)。
摘要（英）：

In sharing processing, a security apparatus 12 applies secret sharing to processing information m to obtain a plurality of pieces of fragment information s n (where n = 1, ..., N), obtains verification information h n which is an image H(s n ) of the obtained fragment information s n through mapping H, stores the verification information h n and outputs the fragment information s n . Each piece of the fragment information s n is stored in a storage apparatus 13-n. In restoration processing, the security apparatus 12 accepts input of fragment information s f(k) (where k = 1, ..., K) required for restoration, compares fourth verification information which is an image H(s f(k) ) of the inputted fragment information s f(k) through mapping H with stored verification information h f(k) , and restores the processing information m from the fragment information s f(k) (where k = 1, ..., K) corresponding to the fourth verification information H(s f(k) ) which matches the verification information h f(k) .

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