Secure AuthenticationのトピックRe: Diffie–Hellman get_key on SE050

Diffie–Hellman get_key on SE050

ethanlooney — Thu, 01 Jul 2021 15:45:01 GMT

Hi, I am writing a program that calculates a shared secret on the NXP SE050 and then exports the shared secret. For this, I am using both "sss_derive_key_dh" and "sss_key_store_get_key" to export the key.

The problem I am having is that when I try to run "sss_key_store_get_key", it fails. I was able to find an error code that it produced, 6986, which states "kSE05x_SW12_COMMAND_NOT_ALLOWED - Command not allowed - access denied based on object policy".

While trying to debug this I looked into and ran the ex_ecdh example. This examples runs but I've discovered the "sss_key_store_get_key" call runs "sss_openssl_key_store_get_key" instead of the "sss_se05x_key_store_get_key" that I am hoping to run.

Would someone be able to provide an example that runs "sss_derive_key_dh" and the se05x version of "sss_key_store_get_key"?

Thank you,

Ethan

Re: Diffie–Hellman get_key on SE050

Kan_Li — Fri, 02 Jul 2021 06:57:12 GMT

Hi @ethanlooney ,

Did you implement the application based on the latest MW? Is it possible to share your code for a review?

Thanks for your patience!

Have a great day,
Kan

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Re: Diffie–Hellman get_key on SE050

ethanlooney — Fri, 02 Jul 2021 15:35:31 GMT

Hi,

I belive I am running into the same issue as this post:

https://community.nxp.com/t5/Secure-Authentication/Create-Crypto-Object-error-0x6985-conditions-not-satisfied/m-p/1068833

I am unable to run even the ./se05x_Minimal example.

How would I go about resetting the dev board in order to resolve this problem?

Thank you,

Ethan

Re: Diffie–Hellman get_key on SE050

Kan_Li — Mon, 12 Jul 2021 03:11:27 GMT

Hi @ethanlooney ,

Is it possible to unlock more logs for analyze? Please kindly refer to "SE-PLUG-TRUST-MW/simw-top/doc/stack/logging.html" for more details.

Have a great day,
Kan

Re: Diffie–Hellman get_key on SE050

ethanlooney — Wed, 14 Jul 2021 15:05:07 GMT

Hi Kan,

I've enabled debug level logging for all and have attached a copy of the terminal output while running ./se05x_Minimal.

Please let me know how to move forward from here to resolve this issue.

Thanks,

Ethan

App :INFO :PlugAndTrust_v03.03.00_20210528 App :INFO :Running ./se05x_Minimal App :INFO :If you want to over-ride the selection, use ENV=EX_SSS_BOOT_SSS_PORT or pass in command line arguments. smCom :DEBUG:phPalEse_i2c_open_and_configure Opening port smCom :DEBUG:I2CInit: opening /dev/i2c-1 smCom :DEBUG:I2C driver: PEC flag cleared smCom :DEBUG:I2C driver supports plain i2c-level commands. smCom :DEBUG:I2C driver Initialized :: fd = [12] smCom :DEBUG:phNxpEseProto7816_Open: First open completed smCom :DEBUG:phNxpEse_clearReadBuffer Enter .. smCom :DEBUG:phPalEse_i2c_read Read Requested 260 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=260) 70 79 FB 76 00 00 00 00 00 00 00 00 36 5F 4F 70 4C 31 C1 6A 00 00 00 00 8C 6E FB 76 44 6E AD 7E 29 8F EB 76 A4 6E AD 7E 4C 6E AD 7E D0 6C FB 76 B4 18 F9 76 4C 6E AD 7E D8 8A FB 76 06 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 01 00 00 00 D0 6C FB 76 8C 6E FB 76 00 00 00 00 74 6E AD 7E D8 8A FB 76 06 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 01 00 00 00 FF FF FF FF 8C 6E FB 76 C8 87 EB 76 D0 6C FB 76 AC 6E AD 7E D0 6C FB 76 B4 18 F9 76 AC 6E AD 7E D8 8A FB 76 06 00 00 00 0C 61 ED 76 D0 6C FB 76 78 8B EB 76 D0 14 FB 76 00 00 00 00 01 00 00 00 00 80 FB 76 04 6F AD 7E 54 6A F9 76 00 00 00 00 01 00 00 00 01 00 00 00 00 00 00 00 68 79 FB 76 C8 87 EB 76 00 00 00 00 00 60 ED 76 38 0F 01 00 E4 09 01 00 00 00 00 00 00 00 00 00 00 00 00 00 44 CB F9 76 20 1F 9B 01 00 00 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:TransceiveProcess nextTransceiveState 4 smCom :DEBUG:S-Frame PCB: c0 smCom :DEBUG:phNxpEse_WriteFrame Enter .. smCom :DEBUG:TX (axI2CWrite) > (Len=5) 5A C0 00 FF FC smCom :DEBUG:Done with rv = 0c smCom :DEBUG:RAW Tx> (Len=5) 5A C0 00 FF FC smCom :DEBUG:phNxpEse_read Enter .. smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0c smCom :DEBUG:TX (axI2CRead): (Len=2) A5 E0 smCom :DEBUG:phNxpEse_readPacket Read HDR smCom :DEBUG:phNxpEse_readPacket SOF FOUND smCom :DEBUG:phPalEse_i2c_read Read Requested 1 bytes smCom :DEBUG:Done with rv = 0c smCom :DEBUG:TX (axI2CRead): (Len=1) 00 smCom :DEBUG:poll_sof_chained_delay value is 0 smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0c smCom :DEBUG:TX (axI2CRead): (Len=2) 3F 19 smCom :DEBUG:RAW Rx< (Len=5) A5 E0 00 3F 19 smCom :DEBUG:phNxpEseProto7816_ProcessResponse p_data ----> 0x19b1f28 len ----> 0x5 smCom :DEBUG:Received CRC:0x3f19 Calculated CRC:0x3f19 smCom :DEBUG:Retry Counter = 0 smCom :DEBUG:phNxpEseProto7816_DecodeFrame S-Frame Received smCom :DEBUG:TransceiveProcess nextTransceiveState 7 smCom :DEBUG:S-Frame PCB: c7 smCom :DEBUG:phNxpEse_WriteFrame Enter .. smCom :DEBUG:TX (axI2CWrite) > (Len=5) 5A C7 00 F7 B1 smCom :DEBUG:Done with rv = 0c smCom :DEBUG:RAW Tx> (Len=5) 5A C7 00 F7 B1 smCom :DEBUG:phNxpEse_read Enter .. smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0c smCom :DEBUG:TX (axI2CRead): (Len=2) A5 E7 smCom :DEBUG:phNxpEse_readPacket Read HDR smCom :DEBUG:phNxpEse_readPacket SOF FOUND smCom :DEBUG:phPalEse_i2c_read Read Requested 1 bytes smCom :DEBUG:Done with rv = 0c smCom :DEBUG:TX (axI2CRead): (Len=1) 23 smCom :DEBUG:poll_sof_chained_delay value is 0 smCom :DEBUG:phPalEse_i2c_read Read Requested 37 bytes smCom :DEBUG:Done with rv = 0c smCom :DEBUG:TX (axI2CRead): (Len=37) 00 A0 00 00 03 96 04 03 E8 00 FE 02 0B 03 E8 08 01 00 00 00 00 64 00 00 0A 4A 43 4F 50 34 20 41 54 50 4F 2A 8D smCom :DEBUG:RAW Rx< (Len=40) A5 E7 23 00 A0 00 00 03 96 04 03 E8 00 FE 02 0B 03 E8 08 01 00 00 00 00 64 00 00 0A 4A 43 4F 50 34 20 41 54 50 4F 2A 8D smCom :DEBUG:phNxpEseProto7816_ProcessResponse p_data ----> 0x19b1f28 len ----> 0x28 smCom :DEBUG:Received CRC:0x2a8d Calculated CRC:0x2a8d smCom :DEBUG:Retry Counter = 0 smCom :DEBUG:phNxpEseProto7816_DecodeFrame S-Frame Received smCom :DEBUG:phNxpEseProto7816_DecodeSFrameData frameoffset=3 value=0x0 smCom :DEBUG:Data[0]=0x0 len=35 Data[34]=0x50 Data[79]=0x23 smCom :DEBUG:Trying to Acquire Lock thread: 1996165136 smCom :DEBUG:LOCK Acquired by thread: 1996165136 smCom :DEBUG:APDU Tx> (Len=22) 00 A4 04 00 10 A0 00 00 03 96 54 53 00 00 00 01 03 00 00 00 00 00 smCom :DEBUG:Enter phNxpEseProto7816_Transceive smCom :DEBUG:Transceive data ptr 0x0x7ead6a58 len:22 smCom :DEBUG:I-Frame Data Len: 22 Seq. no:0 smCom :DEBUG:TransceiveProcess nextTransceiveState 1 smCom :DEBUG:phNxpEse_WriteFrame Enter .. smCom :DEBUG:TX (axI2CWrite) > (Len=27) 5A 00 16 00 A4 04 00 10 A0 00 00 03 96 54 53 00 00 00 01 03 00 00 00 00 00 A8 C8 smCom :DEBUG:Done with rv = 0c smCom :DEBUG:RAW Tx> (Len=27) 5A 00 16 00 A4 04 00 10 A0 00 00 03 96 54 53 00 00 00 01 03 00 00 00 00 00 A8 C8 smCom :DEBUG:phNxpEse_read Enter .. smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0c smCom :DEBUG:TX (axI2CRead): (Len=2) A5 00 smCom :DEBUG:phNxpEse_readPacket Read HDR smCom :DEBUG:phNxpEse_readPacket SOF FOUND smCom :DEBUG:phPalEse_i2c_read Read Requested 1 bytes smCom :DEBUG:Done with rv = 0c smCom :DEBUG:TX (axI2CRead): (Len=1) 09 smCom :DEBUG:poll_sof_chained_delay value is 0 smCom :DEBUG:phPalEse_i2c_read Read Requested 11 bytes smCom :DEBUG:Done with rv = 0c smCom :DEBUG:TX (axI2CRead): (Len=11) 03 01 00 6F FF 01 0B 90 00 19 14 smCom :DEBUG:RAW Rx< (Len=14) A5 00 09 03 01 00 6F FF 01 0B 90 00 19 14 smCom :DEBUG:phNxpEseProto7816_ProcessResponse p_data ----> 0x19b1f28 len ----> 0xe smCom :DEBUG:Received CRC:0x1914 Calculated CRC:0x1914 smCom :DEBUG:Retry Counter = 0 smCom :DEBUG:phNxpEseProto7816_DecodeFrame I-Frame Received smCom :DEBUG:phNxpEseProto7816_DecodeFrame I-Frame lastRcvdIframeInfo.seqNo:0x0 smCom :DEBUG:Data[0]=0x3 len=9 Data[8]=0x90 Data[0]=0x9 smCom :DEBUG: phNxpEse_Transceive Exit status 0x0 smCom :DEBUG:APDU Rx< (Len=9) 03 01 00 6F FF 01 0B 90 00 smCom :DEBUG:Trying to Released Lock by thread: 1996165136 smCom :DEBUG:LOCK Released by thread: 1996165136 sss :INFO :atr (Len=35) 00 A0 00 00 03 96 04 03 E8 00 FE 02 0B 03 E8 08 01 00 00 00 00 64 00 00 0A 4A 43 4F 50 34 20 41 54 50 4F sss :WARN :Communication channel is Plain. sss :WARN :!!!Not recommended for production use.!!! smCom :DEBUG:Trying to Acquire Lock thread: 1996165136 smCom :DEBUG:LOCK Acquired by thread: 1996165136 smCom :DEBUG:APDU Tx> (Len=8) 80 04 00 22 03 41 01 01 smCom :DEBUG:Enter phNxpEseProto7816_Transceive smCom :DEBUG:Transceive data ptr 0x0x7ead62d4 len:8 smCom :DEBUG:I-Frame Data Len: 8 Seq. no:1 smCom :DEBUG:TransceiveProcess nextTransceiveState 1 smCom :DEBUG:phNxpEse_WriteFrame Enter .. smCom :DEBUG:TX (axI2CWrite) > (Len=13) 5A 40 08 80 04 00 22 03 41 01 01 16 29 smCom :DEBUG:Done with rv = 0c smCom :DEBUG:RAW Tx> (Len=13) 5A 40 08 80 04 00 22 03 41 01 01 16 29 smCom :DEBUG:phNxpEse_read Enter .. smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0d smCom :DEBUG:TX (axI2CRead): (Len=2) 00 00 smCom :DEBUG:_i2c_read() error : 13 smCom :DEBUG:_i2c_read() [HDR]errno : 79 ret : FFFFFFFF smCom :DEBUG:phNxpEse_readPacket Normal Pkt, delay read 1ms smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0c smCom :DEBUG:TX (axI2CRead): (Len=2) A5 40 smCom :DEBUG:phNxpEse_readPacket Read HDR smCom :DEBUG:phNxpEse_readPacket SOF FOUND smCom :DEBUG:phPalEse_i2c_read Read Requested 1 bytes smCom :DEBUG:Done with rv = 0c smCom :DEBUG:TX (axI2CRead): (Len=1) 02 smCom :DEBUG:poll_sof_chained_delay value is 0 smCom :DEBUG:phPalEse_i2c_read Read Requested 4 bytes smCom :DEBUG:Done with rv = 0c smCom :DEBUG:TX (axI2CRead): (Len=4) 69 85 00 C1 smCom :DEBUG:RAW Rx< (Len=7) A5 40 02 69 85 00 C1 smCom :DEBUG:phNxpEseProto7816_ProcessResponse p_data ----> 0x19b1f28 len ----> 0x7 smCom :DEBUG:Received CRC:0xc1 Calculated CRC:0xc1 smCom :DEBUG:Retry Counter = 0 smCom :DEBUG:phNxpEseProto7816_DecodeFrame I-Frame Received smCom :DEBUG:phNxpEseProto7816_DecodeFrame I-Frame lastRcvdIframeInfo.seqNo:0x1 smCom :DEBUG:Data[0]=0x69 len=2 Data[1]=0x69 Data[133]=0x2 smCom :DEBUG: phNxpEse_Transceive Exit status 0x0 smCom :DEBUG:APDU Rx< (Len=2) 69 85 smCom :DEBUG:Trying to Released Lock by thread: 1996165136 smCom :DEBUG:LOCK Released by thread: 1996165136 sss :WARN :nxEnsure:'ret == SM_OK' failed. At Line:6291 Function:sss_se05x_TXn App :ERROR:Se05x_API_GetFreeMemory Failed App :INFO :mem=0 App :ERROR:se05x_Minimal Example Failed !!!... App :INFO :ex_sss Finished App :ERROR:ex_sss_entry Failed hostLib:DEBUG:CloseSession command is sent only if valid Session exists!!! smCom :DEBUG:TransceiveProcess nextTransceiveState 6 smCom :DEBUG:S-Frame PCB: c5 smCom :DEBUG:phNxpEse_WriteFrame Enter .. smCom :DEBUG:TX (axI2CWrite) > (Len=5) 5A C5 00 47 82 smCom :DEBUG:Done with rv = 0c smCom :DEBUG:RAW Tx> (Len=5) 5A C5 00 47 82 smCom :DEBUG:phNxpEse_read Enter .. smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0c smCom :DEBUG:TX (axI2CRead): (Len=2) A5 E5 smCom :DEBUG:phNxpEse_readPacket Read HDR smCom :DEBUG:phNxpEse_readPacket SOF FOUND smCom :DEBUG:phPalEse_i2c_read Read Requested 1 bytes smCom :DEBUG:Done with rv = 0c smCom :DEBUG:TX (axI2CRead): (Len=1) 00 smCom :DEBUG:poll_sof_chained_delay value is 0 smCom :DEBUG:phPalEse_i2c_read Read Requested 2 bytes smCom :DEBUG:Done with rv = 0c smCom :DEBUG:TX (axI2CRead): (Len=2) 87 67 smCom :DEBUG:RAW Rx< (Len=5) A5 E5 00 87 67 smCom :DEBUG:phNxpEseProto7816_ProcessResponse p_data ----> 0x19b1f28 len ----> 0x5 smCom :DEBUG:Received CRC:0x8767 Calculated CRC:0x8767 smCom :DEBUG:Retry Counter = 0 smCom :DEBUG:phNxpEseProto7816_DecodeFrame S-Frame Received smCom :DEBUG:Close i2c device 3. smCom :DEBUG:phNxpEse_close - ESE Context deinit completed App :ERROR:!ERROR! ret != 0.

Re: Diffie–Hellman get_key on SE050

Kan_Li — Thu, 15 Jul 2021 09:05:08 GMT

Hi @ethanlooney ,

Thanks for the information! We will try to analyze the root cause based on that, and also wondering what is the platform used to run the demo, is it a FRDM-K64F board or something else?

Have a great day,
Kan

Re: Diffie–Hellman get_key on SE050

ethanlooney — Thu, 15 Jul 2021 14:02:17 GMT

Hi Kan,

The demo is being run on a raspberry pi connected to the SE050 dev board over I2C. I've tried running the demo on two different raspberry pi's with unmodified code so I believe the problem lies with the SE050.

Thanks,

Ethan

Re: Diffie–Hellman get_key on SE050

Kan_Li — Fri, 23 Jul 2021 08:20:14 GMT

Hi @ethanlooney ,

Regarding the general communication issues it seems here is an I2C device address conflict on the bus, so would you please try to disconnect SE050 and run again, if there is still some responses there is another device on the bus with conflicting address.

Have a great day,
Kan