FreeCalypso > hg > freecalypso-tools

annotate rvinterf/etmsync/cl_des.h @ 407:19e5a3e2f9c0

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fcup-settime: moved time() retrieval a little closer to the output A fundamental problem with all simple time transfer tools is that there is always some delay between the time retrieval on the source system and that transmitted time being set on the destination, and the resulting time on the destination system is off by that delay amount. This delay cannot be fully eliminated when working in a simple environment like ours, but we should make our best effort to minimize it. In the present case, moving the atinterf_init() call before the time() retrieval should make a teensy-tiny improvement.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 11 Aug 2018 21:52:17 +0000
parents 3d148edb87c2
children
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14
3d148edb87c2 eliminated the dependency on OpenSSL for Pirelli IMEI DES decryption
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1 /*
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2 * This DES implementation is used for the purpose of decrypting
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3 * Pirelli's factory IMEI record; it has been lifted out of TI's
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4 * reference GSM firmware source.
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5 */
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6
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7 #ifndef CL_DES_H
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8 #define CL_DES_H
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9
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10 /**********************************************************************************/
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11
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12 #define CL_DES_BUFFER_SIZE 8
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13 #define CL_DES_KEY_SIZE 8
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14 #define CL_DES_ENCRYPTION 1
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15 #define CL_DES_DECRYPTION 2
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16
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17 /*
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18 +------------------------------------------------------------------------------
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19 | Function : cl_des
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20 +------------------------------------------------------------------------------
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21 | Description : The function performs DES encrypting or decrypting
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22 |
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23 | Parameters : inMsgPtr : pointer to input message M. The length of message
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24 | has to be min. 8 bytes e.g. M = 0123456789abcdef
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25 | desKeyPtr : pointer to DES key. Length has to be 8 bytes
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26 | outMsgPtr : output encrypted/decrypted message. The length is 8 b.
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27 | code : CL_DES_ENCRYPTION, CL_DES_DECRYPTION
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28 +------------------------------------------------------------------------------
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29 */
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30 extern void cl_des(unsigned char *inMsgPtr, unsigned char *desKeyPtr,
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31 unsigned char *outMsgPtr, unsigned char code);
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32
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33
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34 /**********************************************************************************/
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35
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36 #endif /* CL_DES_H */