Multi-Certification Signatures and Their Applications to Public Key Infrastructure
B Lee, Kwangjo Kim · 2002
As the application of digital signature is progressed in real life, the situation of using digital signatures tends to become more complex. Depending on applications a user may need to generate multiple signatures for the same message with his multiple signing keys. But the general approach of generating multiple independent signatures is not e#cient. To solve this problem, we propose multi-key signature scheme in which a signer generates a single signature for a message using his multiple signing keys all together.