发明名称 |
Method and device for sending encryption parameters |
摘要 |
A transmitting device encrypts DMR voice superframes using encryption parameters and sends the encryption parameters in at least one of the voice superframes by: identifying a selected number of bits from a plurality of vocoder frames the voice superframe; replacing each of the identified bits with a corresponding bit of a first encryption parameter; placing at least one encryption parameter in an embedded signaling field of the voice superframe; and transmitting 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.
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申请公布号 |
US8422679(B2) |
申请公布日期 |
2013.04.16 |
申请号 |
US20080253411 |
申请日期 |
2008.10.17 |
申请人 |
CHOWDHARY DIPENDRA M.;BELMONTE JOHN P.;WIATROWSKI DAVID G.;MOTOROLA SOLUTIONS, INC. |
发明人 |
CHOWDHARY DIPENDRA M.;BELMONTE JOHN P.;WIATROWSKI DAVID G. |
分类号 |
H04L29/06 |
主分类号 |
H04L29/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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