An Improved Forward Integrity Protocol for Mobile Agents

A Free-Roaming Mobile Agent Security Protocol against Colluded Truncation Attack without trusted third party

“…Reference [5] uses partial result encapsulation for chain association certification, use digital signatures and Hash function to form association between results of two hosts adjacent. Through this association the mechanism can prevent data changed maliciously, but it can not resist colluded truncation attack.…”

“…Reference [6] is an improvement of reference [5]. Data generated by agent on each host have relationship with data generated on consecutive two hosts before and after.…”

Trust Enhanced Data Security in Free Roaming Mobile agents using Symmetric Key cryptography

“…Reference [2] uses partial result encapsulation for chain association certification, use digital signatures and Hash function to form association between results of two hosts adjacent. Through this association the mechanism can prevent data changed maliciously, but it cannot resist colluded truncation attack.…”

“…Reference [3] is an improvement of reference [2]. Data generated by agent on each host have relationship with data generated on consecutive two hosts before and after.…”

An Improved Free-Roaming Mobile Agent Security Protocol against Colluded Truncation Attacks

“…Like KAG protocols, to reach the so called publicly verifiable forward integrity propriety, this protocol generates a pair of one time secret private and public keys at each host for its successor to use. As Yao et al [6] and Songsiri [7] point out, the security assurance relies on the assumption that the predecessor does not leak the secret key used by its successor. This requirement to potentially malicious hosts is not realistic.…”