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Here is a sample of the SRKE generated Secure Access Code (SAC) at fixed time intervals:

Transmitted Command Code: c5

Key: e33724c67cfde9f9462df78c76d457ed1e8dcd3d3b23f17606d7cd0d00f3e30189375212b2c2846546df998d06b97b0d

SAC (with the 8-bit encrypted Command Code and the 160-bit signature) generated at fixed time interval:

9be828beb3a1b53fb99c451261e9f00eaa0ff04e20 8a6378f9bfca3b9804e5942da571581b57e2b3b52b bf863cc0cfb472b3faf6ad8986ae6c50846b59903e f48973a9e1e59a7a6bd6b39728553f0c10c4affbde c304b26ec899d770f999dd6b64961650f9ed00792b ff9ba9f08d1ae7856b90772fc62dc50c0ad6419500 4bd64e0ee2ceb16ef42aab937c60fd69a2bfaaf523 81115df6c838f61b48cfa8d8fa8efed35e7bcce5c9 2628ef44e47d817e767535b9ec2a891a58b9928af2 98fe980a9c2640f6d02f2525d9f336c0b6bc92c616 78a095ce0cfa1a04310a1b9ec5a7930034bfe4c140 b0289b2ba6342c66b6d5800b9a1943c51600c4d134 c569d5708cfa1470f61696cfe19997e4bbaeb17981 cbddbdea7a1b9f77ec577c24a1a16c2e7b86f874f0 becdcdbe812f7d04310d105597fe8e5cd365c8338b 2e14b7c76fe27491b47d6249dea26685a27f626985 25b304be693e01d68e0d25bc59cf0e7d42af8c3536 89962564a639ae4f37d62125389d78cecc20e99c4b 5ba7b4b4671e5113f8c5a3c4cb02e33cc6e578e5e4 5d030907a2cbddd738a84285b7faa52529eae65641 684d881f8b047d234ee8a4ef27486e7dcb6f5d2104 1745307037505ae96be19d98756c087b02d46bfede 365dad9a098e2da56ff1e5fe250d513293347ee68f a7d2add805d09c8a888811427e4f862187143bb94f fd3b46e67eb3a9c701a78b083e71395b7c3964ec55 07eb2d263d903cb81475fe894809110e3763186de6 1fa55bf6fd65fd5c2a552825a790ac86cda51f6f35 479438146574961bd6c2ec189286fc1d92c61169c8 e5c68cb658969655e9ba1ab307ac341423271ed08c ef88c3a5bef9c5edb03814cc4611d3a632089c9d23 4948dae298f2e647a7e2f5405074fb88625c99c713 605d7f0851909e0c648252c5fd108406595aa75718 d1b9da9ce3b980260179e704f426c0d4066fcf2d23 b5da82487a441a58c5b27fd0ac1f19a307edb8a14e beb306a645cfb287b019790baa6c84b0089640e2f1 95b329ab69d370082936337bf9c42985b2d0d3d503 229305c75c8ca2fc3c4c04e43ae24742dc1ca55786 901a778e80afca3ba585adf469fc6398208ba4f2b6 b41ebf8099af6ab2b16e6c4c5b6428b257e199abd8 f804288c92f32dbaf603a2229fa288e07cb8a34a1c deb0b791448c4c29d1be2932f306350697c3589ca6 2875a995d407f166950dd2f136591d1740143d59e0 7dd1a2462f3d24f0cbf053ec1b0cf8f1e3b854df60 081e44adc2e88dbc26251066e5ebcf8ee7086b272c 313b445a2e16c9bc5b97c8dd71ce10537bf1311ee0 c72e846c790b4508163f8860019a980dce021ad47f e36083c7207e5cf2d07d2dbcd2764ee3d44ecec0e7 a1f04fca2e17a17286c7f5f242e28c3ca8ea836cce 9e028527264c82b5ea9a3833341f2f672d9be90434 801edd1cf08259366bfd935ea90775d4c9c3db2488 18c15ca1f4dc94a48268dd6156f4d947fbdcf1816c 615594496b82e08f230473ce29044b2c2806b97db2 fd0579d46051f2f5c7e7d4b07a5e61e24151f99045 7e941c86d8970b2024e52801900b07b0769b04fd8b 7da373c1013c97b5cc4394abf4d94de94510abf7c6 eab1746e4412b0c28de9d6c0449a33bc9fdfdca3e9 ef17c7c2f67e7f1b55a9438b7bed80fa48e9fc8443 53e4da8801015d581be958cdebc07f9519f5048d1f 911902aab7985f8164a2a33a95d00bf2fa45e3a07c ce9708c52d749925263e77095eae85bd89771179f6 779f1c861a812fbd8cdad02e3660cbe22b7986e01e f4dc8ac67f1298f7fd5321890d894c81d87ac32483 dd252ec234900ad9fbe54fcf7ce10bebb0dae15e3d 052ddac07dee9e7ea14b72719686aca0daac8fdc6a

Note to the more curious:

Sorry if the demo is somewhat unsophisticated.. We had considered putting in a realtime bmp based method to demo the full feature sets of the SEA, but we simply do not have the resources for this type of works at this time. Also, considered some modes like the L3 are secret proprietary, and our main product offers are to be silicons, we do not offer any C/C++/Java based programs for evaluation as well at this time (the above SAC were extracted from Verilog based SRKE testbench).

However, if you do wish to implement the SEA in the RICS or the UTCC modes in your software for non-commercial purposes like researches or evaluations, you are free to do so at any time.

If you wish to use SEA commercially in your product, please contact ip@yflelite.com for licensing. Thank you.

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Though the SRKE SAC requires only a subset of the SEA for its very small data, it should be evident the quality of the randomness that can be achieved by the SEA. The above sample of the SAC is to show this quality of the randomness that can be achieved.


SRKE unidirectional mode transmission

RCU repeatedly transmits SAC a number of times.

SRKE bidirectional mode

A completed bidirectional protocol with successful authentication.
VSU and RCU have different VIN (or if out of range). VSU gives no response while RCU retried transmitting a number of times.
RCU has no reception of the VSU signal (e.g. out of range). Both units retried transmissions.
RCU generated the SAC with an invalid key, thus, authentication failed. VSU responded with error and rejected access.
SAC full view.
A zoom in view of a part of the Manchester coded SAC.