Decentralized meta-learning
  • Bitcoin
    4. Segwit transaction 3. Segwit address 2. Bitcoin transaction 1. Bitcoin address
  • Cryptography
    RSA ElGamal ECDSA Schnorr EC-Schnorr Zero knowledge proofs Elliptic curves Commitment schemes Hash functions BLS
  • Coins
    Ethereum address Monero address Iota address
  • Emacs
    Completion system In-file navigation Files/buffers navigation From Jekyll to Hugo Organizing work/life projects
  • Finance
    Interest Rate Black-Scholes formula Options Greeks Historical Volatility Linear & Log Returns Risk-adjusted metrics
  • Linux
    3. Use Linux kernel module 2. Config Linux kernel module 1. Write Linux kernel module From HDD to SSD w/ EFI Back to my first love Package management Config management SSH keys on USB Firewall, monitor, ban. Repeat. Wildcard SSL certificate 1. Personal Email server 2. Personal DNS server 3. Personal VPN server
  • Math
    Complexities with graphs Algebraic structures Ternary (Trinary) system Bias vs. variance
  • Open Source
    Bitmex-API Actihunt Deribit-API 3DP Huveragy G2: web app
  • Trading
    Weekly Monthly Close Slices of Bitcoin Month Breaks COVID-19 indicators Hedge Fund Market Wizards book Session breaks Whale alert New Market Wizards book Price breaks indicator Chess vs Trading Reminiscences of ... a loss
  • Travel
    4. G2: aftermath 3. G2: compare gear 2. G2: gear list 1. G2: training plan First USA visit Coworking spaces High-end Maldives Diving Palawan Backpacking Vietnam Surviging Bali 1. Annapurna Circuit: the plan 2. Annapurna Circuit: the gear 3. Annapurna Circuit: the training 4. Annapurna Circuit: the afthermath
  • Tags
  • About
Decentralized meta-learning

math


Interest rate

Finance

 Posted on November 24, 2020  |  5 minutes  |  1063 words  |  Iulian Costan

Compound interest is the eighth wonder of the world He who understands it… earns it! He who doesn't … pays it! [Read More]
finance  math  interestrate  compound  72 

Algebraic structures: Set, Group, Ring

Math

 Posted on November 11, 2020  |  5 minutes  |  1009 words  |  Iulian Costan

The easiest way to understand algebraic structures, starting with basic structure called Set and incrementally add properties on top of it to build more complex structures. [Read More]
math  set  group  ring  field  algebra 

BigO complexity with graphs

Math

 Posted on June 4, 2020  |  4 minutes  |  698 words  |  Iulian Costan

Overview Big-O notation or Big Omicron (e.g. Ο(n)) also called "asymptotic growth" notation is used to represent the worst-case scenario (the upper bound) for a given algorithm. [Read More]
math  complexity  algorithms  bigo  graph 

Elliptic curves

Cryptography

 Posted on September 25, 2019  |  5 minutes  |  1030 words  |  Iulian Costan

The easiest way to understand Elliptic Curve (EC), point addition, scalar multiplication and trapdoor function; explained with simple graphs and animations. [Read More]
cryptography  elliptic-curve  math  sagemath  python 

Zero-knowledge proofs

Cryptography

 Posted on August 26, 2019  |  7 minutes  |  1481 words  |  Iulian Costan

Zero-knowledge is a method to prove that you know a secret ``x`` (e.g. a password, private key, piece of knowledge, etc) without revealing that secret. [Read More]
cryptography  zero-knowledge-proof  math  python  zcash 

Zero-knowledge proofs

Cryptography

 Posted on August 26, 2019  |  7 minutes  |  1416 words  |  Iulian Costan

— layout: post title: "Zero-knowledge proofs" subtitle: Cryptography date: 2019-08-26 tags: ["cryptography", "zero-knowledge-proof", "math", "python", "zcash"] — [Read More]
cryptography  zero-knowledge-proof  python  math 

EC-Schnorr

Cryptography

 Posted on June 25, 2019  |  4 minutes  |  662 words  |  Iulian Costan

Overview EC-Schnorr, as the name suggests, is a Schnorr-type digital signature scheme over elliptic curve, it's ECDSA's little sister and Schnorr's big brother implemented in the upcoming MuSig in Bitcoin. [Read More]
cryptography  schnorr  ellipticcurve  math  python  sagemath 

Schnorr

Cryptography

 Posted on June 19, 2019  |  3 minutes  |  556 words  |  Iulian Costan

Schnorr is another digital signature scheme known for its simplicity, no division, no inversion, just plain old multiplication. [Read More]
cryptography  schnorr  discrete-logarithm  math  sagemath 

ECDSA

Cryptography

 Posted on April 9, 2019  |  4 minutes  |  818 words  |  Iulian Costan

Elliptic curve cryptography (ECC) and digital signature algorithm (ECDSA) are more complex than RSA or ElGamal but I will try my best to hide the hairy math and the implementation details. [Read More]
cryptography  ecdsa  discrete-logarithm  math  eli5  python  sagemath 

ElGamal

Cryptography

 Posted on March 26, 2019  |  4 minutes  |  816 words  |  Iulian Costan

ElGamal is a public key cryptosystem that is used in encryption , digital signature and homomorphic cryptography. [Read More]
cryptography  elgamal  discrete-logarithm  math  eli5  python 
  • Older Posts →

Iulian Costan  • © 2023  •  Decentralized meta-learning

Hugo v0.111.3 powered  •  Theme Beautiful Hugo adapted from Beautiful Jekyll