Practical OpenPGP Extension with Forward Security
Long Qin · Mini-micro Systems · 2005
The leakage of the secret key is a most serious threat to present schemes of digital signature. Forward-secure signature is proposed to solve this kind of problem. The paper summarize and compare several related forward-secure signature schemes. Based on a simple forward security construction scheme, OpenPGP is extended effectively to provide forward-security which is compatible with the OpenPGP standard.