A system and method of signing a message to be sent from a first communication device to a destination via a second communication device. The message includes a first portion on the first communication device and a second portion on the second communication device. The method includes receiving at the second communication device the first portion of the message and a first signature for the first portion from the first communication device; combining the first portion and the second portion to form the message; obtaining a second signature for the message; and sending the first signature, the second signature and the message from the second communication device to the destination.
申请公布号
EP2458812(A2)
申请公布日期
2012.05.30
申请号
EP20110183129
申请日期
2011.09.28
申请人
RESEARCH IN MOTION LIMITED
发明人
ADAMS, NEIL PATRICK;SINGH, RAVI;VATS, NIKHIL;SHERKIN, ALEXANDER