MULTI-HOP SECURE CONTENT ROUTING BASED ON CRYPTOGRAPHIC PARTIAL BLIND SIGNATURES AND EMBEDDED TERMS

At a transmitter node, a commitment value C is obtained as a function of a message m. The commitment value C and transmitter terms of use TA for the message m are then sent to a receiver node withoutdisclosing the message m. A cryptographic receiver signature SB over the commitment value C and the transmitter terms of use TA is received from the receiver node, where the cryptographic receiver signature SB is signed with a private key kprv-B associated with the receiver node. The receiver signature SB may be authenticated using a public key kpub-B for the receiver node. If the receiver signature SB is successfully authenticated, the message m and the receiver signature SB are signed using a private key kprv-A for the transmitter node to obtain a transmitter signature SA. The message m andthe transmitter signature SA may then be sent to the receiver node. 在发射器节点处，获取承诺值C作为消息m的函数。随后将所述消息m的所述承诺值C及发射器使用条款TA发送到接收器节点，而不公开所述消息m。从所述接收器节点接收跨越所述承诺值C和所述发射器使用条款TA的加密接收器签名SB，其中所述加密接收器签名SB使用与所述接收器节点相关的私用密钥kprv-B签名。可使用用于所述接收器节