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| ### HSM (Hardware Secure Module) vs. TPM (Trusted Platform Module) | |
| http://security.stackexchange.com/questions/88744/what-are-the-differences-between-tpm-and-hsm |
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| - List all i2c buses on BBB | |
| `i2cdetect -l` | |
| i2c-0 unknown OMAP I2C adapter N/A | |
| i2c-2 unknown OMAP I2C adapter N/A | |
| - Detect online i2c slaves | |
| `sudo i2cdetect -y -r 2` | |
| 0 1 2 3 4 5 6 7 8 9 a b c d e f | |
| 00: -- -- -- -- -- -- -- -- -- -- -- -- -- | |
| 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- | |
| 20: -- -- -- -- -- -- -- -- -- 29 -- -- -- -- -- -- | |
| 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- | |
| 40: -- -- 42 -- -- -- -- -- -- -- -- -- -- -- -- -- | |
| 50: 50 -- -- -- UU UU UU UU -- -- -- -- -- -- -- -- | |
| 60: 60 -- -- -- 64 -- -- -- UU -- -- -- -- -- -- -- | |
| You may encounter error Error: "Can't use SMBus Quick Write command on this bus" if not using `i2cdetect` with the `-r` option. | |
| [Command Reference]: https://github.com/kelly/node-i2c/issues/27 | |
| For detailed reference of the `i2cdetect` command: https://linux.die.net/man/8/i2cdetect | |
| Dump the content of EEPROM: `sudo cat /sys/bus/i2c/devices/2-0057/eeprom| hexdump -C` | |
| 00000000 aa 55 33 ee 41 31 42 42 2d 42 4f 4e 45 2d 43 52 |.U3.A1BB-BONE-CR| | |
| 00000010 59 50 54 4f 00 00 00 00 00 00 00 00 00 00 00 00 |YPTO............| | |
| 00000020 00 00 00 00 00 00 30 30 41 30 53 70 61 72 6b 46 |......00A0SparkF| | |
| 00000030 75 6e 00 00 00 00 00 00 00 00 42 42 2d 42 4f 4e |un........BB-BON| | |
| 00000040 45 2d 43 52 59 50 54 4f 00 00 00 11 32 30 31 34 |E-CRYPTO....2014| | |
| 00000050 30 30 30 30 30 30 30 30 00 00 00 00 00 00 00 00 |00000000........| | |
| 00000060 00 00 00 00 00 00 00 00 00 00 e0 73 e0 73 00 00 |...........s.s..| | |
| 00000070 00 00 00 00 00 00 00 00 00 00 00 00 a0 26 c0 06 |.............&..| | |
| 00000080 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| | |
| 00000090 00 00 a0 2f 00 00 00 00 00 00 c0 17 00 00 00 00 |.../............| | |
| 000000a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| | |
| * | |
| 000000e0 00 00 00 00 00 00 00 00 00 00 00 00 01 f4 00 00 |................| | |
| 000000f0 00 00 00 00 47 50 47 20 46 69 6e 67 65 72 70 72 |....GPG Fingerpr| | |
| 00000100 69 6e 74 3a 20 30 78 42 35 39 31 39 42 31 41 43 |int: 0xB5919B1AC| | |
| 00000110 37 31 33 35 39 30 35 46 34 36 36 39 43 38 34 37 |7135905F4669C847| | |
| 00000120 42 46 41 35 30 33 31 42 44 32 45 44 45 41 36 0a |BFA5031BD2EDEA6.| | |
| 00000130 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................| | |
| * | |
| 00008000 | |
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| ### ATECC108 doesn't support bitcoin/etherreum secp256k1 ECDSA | |
| - EClet Link: https://cryptotronix.com/products/retired-products/eclet/ | |
| - ATECC108 datasheet: http://www.atmel.com/Images/Atmel-8873S-CryptoAuth-ATECC108-Datasheet-Summary.pdf | |
| - Ethereum Hashing and DSA algorithms summarized by ledger: https://blog.ledger.co/innovating-with-bolos-building-an-ethereum-hardware-wallet-216cf5e248a1#.20u7suma8 | |
| ### Cape Guide | |
| - http://elinux.org/Cryptotronix:CryptoCape | |
| - https://learn.sparkfun.com/tutorials/cryptocape-hookup-guide | |
| ### Why secp256k1, not secp256r1/P256 | |
| https://bitcointalk.org/index.php?topic=151120.0 | |
| http://frass.woodcoin.org/secp256k1-vs-p256/ | |
| https://safecurves.cr.yp.to/ |
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| Secure Communications Hub (Atmel SAME70) | |
| Atmel SAML21J17A |
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