Self Quantification BlockChain

Article 7 (2019-09-15)

 Sep 24, 2019 |

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Article 6 (2019-09-15)

 Sep 24, 2019 |

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Article 5 (2019-09-15)

 Sep 24, 2019 |

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Article 4 (2019-09-15)

 Sep 24, 2019 |

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Zero Knowledge Proof of Anything

 Sep 24, 2019 |

Finance, Insurance, Healthcare, all rely on leaky proof in their operations, leading to the bigger horror stories, from perso info leaked, CCard number,

Self sovereign Identity requires a mean of proving one identity or [nym], without giving away critical information which can be malinianly reuse by corrupted individuals

a proof can be

• an age range proof
• a degree possession proof, (degree signed by University)
• a proof of solvency (balance > X) (certified by financial institution)
• a statement of ID attribute certified by institution or gov)
• a solution to an equation proof f(x) = 0
• a proof of membership
• a proof of trust

Proofs property:

• completeness (if both honest can’t convince it is false)
• soundness (if false can’t convince it is true)
• zero-knowledge

Zero Knowledge Proof

Example : interactive ZK Proof Riddles

• Where is Waldo ?
• Easter Egg Hunt (single egg left)
• Leaves on a tree superpower
• Alibaba cave with special key

• Sudoku Solution

• Swapping 2 different objects (color balls)
• key to door lock (tunnel)

• range proof of salary

• Yao’s Millionaire’s Problem
• chocola te bars
• The Knowledge Complexite of Interactive Proof-Systems
• A physical zero-knowledge object-comparison system
• …

Homomorphism (arithmetically conservative)

• F(x+y) = F(x) + F(y)

commitement (bet in future)

msg -[commit]-> H(msg) -[open]-> msg (msg revealed)

homomorphic commitment + range inner product proofs

• Oblivious transfer

This is where zero-knowledge proof are powerful

Cryptography give us a way to secure point-to-point communication,

Pseudo anonymous blockchain try to solve the “point-to-many” security permission blockchain are simply using the point-to-point i.e. the security problem disappear when intermediary are removed

Content addressed storage and Malware, Article 2 (2019-09-15)

 Sep 24, 2019 |

DHT & Malware distribution

CAS as a giant world wide Rainbow-Table

read more:

Abstract
Modern malware can take various forms, and has reached a very highlevel of sophistication in terms of its penetration, persistence, communi-cation and hiding capabilities. The use of cryptography, and of covertcommunication channels over public and widely used protocols and ser-vices, is becoming a norm. In this work, we start by introducing Re-source Identifier Generation Algorithms. These are an extension of awell-known mechanism called Domain Generation Algorithms, which arefrequently employed by cybercriminals for bot management and commu-nication. Our extension allows, beyond DNS, the use of other protocols.More concretely, we showcase the exploitation of the InterPlanetary filesystem (IPFS). This is a solution for the “permanent web”, which enjoysa steadily growing community interest and adoption. The IPFS is, in ad-dition, one of the most prominent solutions for blockchain storage. Wego beyond the straightforward case of using the IPFS for hosting mali-cious content, and explore ways in which a botmaster could employ it,to manage her bots, validating our findings experimentally. Finally, wediscuss the advantages of our approach for malware authors, its efficacyand highlight its extensibility for other distributed storage services

• Hydras and IPFS: A Decentralised Playgroundfor Malware

NIST SP800-185* Perl Module

 Aug 20, 2019 |

In order to secure the documents in the blockring we use the SHAKE-224 sponge function. and we wrote a few perl routines to computes the different hash values.

The perl module KMAC.pm implements the NIST SP800-185* bytepad, left_encode, right_encode function. for the message authentication code KMAC (MAC-SHA3) using cSHAKE hash function (Secure Hash Algorithm KECCAK)

note:

• for L < 160 I use KMAC128 and KMAC256 otherwise

• cSHAKE is slightly different than NIST because of the 2 bits: 00 in message for the sponge function.

   # KMAC128(K, X, L, S): Validity Conditions: len(K) < 2^2040 and 0 ≤ L < 2^2040 and len(S) < 2^2040
   # newX = bytepad(encode_string(K), 168) || X || right_encode(L).
   # return cSHAKE128(newX, L, “KMAC”, S).
       
   # KMAC256(K, X, L, S): Validity Conditions: len(K) < 2^2040 and 0 ≤ L < 2^2040 and len(S) < 2^2040
   # newX = bytepad(encode_string(K), 136) || X || right_encode(L).
   # return cSHAKE256(newX, L, “KMAC”, S).
       
       
   # example for using S (Customization String)
   # *  cSHAKE128(public_key, 256, "", "key fingerprint")
   # *  cSHAKE128(email_contents, 256, "", "email signature")
  

Read More

Arrival on earth

 Jan 26, 1969 |

This is is a test post for a message from a long time ago …

It is Sunday, January 26, 1969, the day I decided to show up, here you go I (Michel G. Combes) am coming to this reality on earth.

see also [*]

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