METHOD AND DEVICE FOR SENDING ENCRYPTION PARAMETERS
摘要
A transmitting device encrypts DMR voice superframes using encryption parameters and sends (300) the encryption parameters in at least one of the voice superframes by: identifying (302) a selected number of bits from a plurality of vocoder frames the voice superframe; replacing (304) each of the identified bits with a corresponding bit of a first encryption parameter; placing (306) at least one encryption parameter in an embedded signaling field of the voice superframe; and transmitting (308) the voice superframe with the encryption parameters to a receiving device. The receiving device extracts the encryption parameters, which can be a key identifier, an algorithm identifier, and an initialization vector for use in decrypting messages from the transmitting device.
申请公布号
WO2010045044(A3)
申请公布日期
2010.07.01
申请号
WO2009US59503
申请日期
2009.10.05
申请人
MOTOROLA, INC.;CHOWDHARY, DIPENDRA, M.;BELMONTE, JOHN, P.;WIATROWSKI, DAVID, G.
发明人
CHOWDHARY, DIPENDRA, M.;BELMONTE, JOHN, P.;WIATROWSKI, DAVID, G.