Category Archives: Cell Phone (iPhone, Android, windows mobile)

Cell Phone (iPhone, Android, windows mobile), Network (Protocol, Topology & Standard)

The important thing is to never stop questioning (Albert Einstein)

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The important thing is to never stop questioning, said Dr. Einstein. View the breaking news today.China has launched the world’s first quantum communications satellite into orbit. Watch TV News program noticed that a group of scientist find a way apply the quantum physics to traditional cryptography replacing RSA cryptosystem. The testing go to final stage in 2015. Competitions everywhere today including employees, business partners, countries. Life is not easy! World looks demanding now! Let’s review in short form in regards to RSA cryptosystem weakness.

RSA cryptosystem weakness:

  • The RSA cryptosystem can be very weak if you do not choose your primes carefully.
  • If the two corresponding ciphertexts are intercepted.
  • If you send the same message to more people with the same RSA encryption exponent e , then the plaintext can always be obtained easily from the intercepted ciphertexts.

Quantum Cryptography benefits:

  • Quantum entanglement – particles can share the same quantum state irrespective of their spatial distance from each other. The entanglement state discard when parameters change.
  • Quantum cryptography would be used in practice to produce one time pads that could be used to securely encrypt any message.

What is the key factors (built a quantum communications satellite):

Avoid eavesdropping – Being monitored

Cyber attack – Being attacked by hackers

Questioning about unknown factors?

In what Layer of the Earth’s Atmosphere install this satellite?

Answer: Exosphere – up to 10,000 km above the Earth

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Is there any external interfere to this layer? For instance, SUNSPOT & X-rays?

It was protected by atmosphere. Atoms are no longer gravitationally bound to the Earth and get knocked away by solar wind. As such, without interference caused by Sunspot suspend the network communications. (Remark: Satellite interfere by sunspot periodically. The result is that the satellite will lost electronic communications in short period of time.)

Does it compatible with mobile phone?

Yes, it is compatible with 4G mobile network and provides hack proof communication channel. I believed that it achieves independence from the use of fixed line or existing mobile networks through super fast Ka-band satellite backhaul.

The objective is that avoid eavesdropping on mobile phone. For instance, NSA tapped Angela Merkel’s mobile phone. The scandal expose to public in 2014.

Germany opens inquiry into claims NSA tapped Angela Merkel’s phone

https://www.theguardian.com/world/2014/jun/04/germany-inquiry-nsa-tapping-angela-merkel-phone

Interim summary:

The space of technology development is to infinite. But like Dr Einstein said, the important thing is to never stop questioning.

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Cell Phone (iPhone, Android, windows mobile)

The crypto key change of modern technology world – Mobile computing devices (BYOD)

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The scandal of NSA hacking tools and surveillance program. Who’s the hero protect world wide privacy? The the largest market research firm (MarketsandMarkets) forecasts the global BYOD market to grow from $71.93 billion in 2013 to $266.17 billion in 2019. You might have question? How to protect your personal data privacy? Even though law enforcement especially NSA couldn’t cracked under normal circumstance?

The trend of security technology

A cryptographic algorithm, or cipher, is a mathematical function used in the encryption and decryption process. A cryptographic algorithm works in combination with a key—a word, number, or phrase—to encrypt the plaintext. The same plaintext encrypts to different ciphertext with different keys. As times go by, the encryption algorithm becomes more complex. Many encryption algorithm (3DES, AES, AES 256) appears in the world.

Steal crypto Key

If the hacker engage a side-channel attack,he must through brute force or by exploiting a weakness in the underlying algorithm. Since the crypto key store on hard drive. The simple idea is that extract the key and certificate in the disk.

In order to avoid steal crypto keys and certificates, Apple establish defensive mechanism.

Apple secure key store in the chipset. The Apple processor contains an on-board, AES cryptograhic key called the Global ID (GID) that is believed to be shared across all the current ‘iDevices’. This GID key is used to un-wrap the keys that decrypt the corresponding boot firmware code stored in system non-volatile memory .

Chipset architecture shown as below:

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Microsoft’s struggle for balance and control (windows OS includes windows phone)

If the encryption key is stored in the operating system itself rather than using a hardware. It’s possible for hacker extract the keys and certificates. BitLocker disk encryption requires a TPM. TPM stands for “Trusted Platform Module”. It’s a chip on your computer’s motherboard that helps enable tamper-resistant full-disk encryption.

BitLocker Drive Encryption is built into the Windows 10 operating system and uses … TPM v1.2 Chip

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TPM version 1.2 Chip – A very generic description of the TPM is that it performs RSA encryption, decryption, and signing in the hardware.

Atmel AT97SC3204T Trusted Platform Module

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