>Abstract. In key-insulated cryptography, there are many private keys with different indexes and a single, fixed public key. When the trust model includes multiple Certification Authorities (CAs), it can be used to shorten the verification path and mitigate the damage caused by the compromise of a CA’s private key.
Really, people will want more information to give better responses.
PDF: (http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.63.7...)
>Abstract. In key-insulated cryptography, there are many private keys with different indexes and a single, fixed public key. When the trust model includes multiple Certification Authorities (CAs), it can be used to shorten the verification path and mitigate the damage caused by the compromise of a CA’s private key.
Really, people will want more information to give better responses.