IOT internet of things

What IOT it means

IOTis the network of physical objects—devices, vehicles, buildings and other items embedded with electronics, software, sensors, and network connectivity—that enables these objects to collect and exchange data.

some examples

vehicles,

Many IoT devices self-configure and run autonomously. User interaction is limited to the devices’ operations, and there are no means to change security parameters. These devices rely on the manufacturer to implement security, both in the hardware and the software.

http://blog.atmel.com/2015/01/26/securing-the-internet-of-streams/

trinket.io short ref

SETUP


Example:
time: 2/2
key: C
tempo: 80
connector: final
staves:
  -
    clef: treble
    lyrics: on
    label: counterpoint
  -
    clef: alto
    label: 'cantus firmus'
    voices: 2
  -
    clef: bass
    lyrics: on

confidiality: unauthorised person can not access the data
integrity: message is not changed
authetication: verify identity of sender
non repudiation: sender can not deny sending






Hash: sha1 md5

HMAC, a mechanism for message authentication
   using cryptographic hash functions. HMAC can be used with any
   iterative cryptographic hash function, e.g., MD5, SHA-1, in
   combination with a secret shared key. 

 a salt is random data that is used as an additional input to a one-way function that hashes a password or passphrase. 

crc32






crc32

online berekening van sha1, md5, rot13, adler32 crc32

Voor online berekening van  sha1, md5, rot13, adler32 crc32 

hexadecimale waardes, ascii en shannon entropy

klik: http://m.dataweg.nl/DumpData.py

For Des,aes TDES, TDEA   md5,sha256 en andere

klik: cryptocalc.appspot.com