Python -

Schnorr and taproot by hand

Bitcoin

Posted on June 15, 2022 | 1 minutes | 25 words |

References

BIPs

Black-Scholes formula

Finance

Posted on January 28, 2021 | 4 minutes | 748 words |

Black-Scholes formula… maybe not as important and well-known as compounding interest-rate but still the most famous formula among options traders. Here are the formulas that you will find in financial books.

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Generate IOTA address

IOTA

Posted on December 28, 2020 | 6 minutes | 1074 words |

Generate IOTA address using plain old Python, starting with random seed, derive private key, and finally the checksum and address.

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Generate Ethereum Address

Ethereum

Posted on October 27, 2020 | 3 minutes | 499 words |

Generate Ethereum address from private key using plain old Python3, Elliptic Curve multiplication from SageMath and of course Keccak hash function.

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ethereum address generation python crypto

Generate Monero address

Monero

Posted on July 18, 2020 | 3 minutes | 607 words |

Generate Monero address from the root private key using plain old Python, Edwards curve's ed25519 implementation, Keccak-256 hashing and Monero's Base58 encoding.

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monero address generation python crypto

Elliptic curves

Cryptography

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

The easiest way to understand Elliptic Curve (EC), point addition, scalar multiplication and trapdoor function; explained with simple graphs and animations.

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Zero-knowledge proofs

Cryptography

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

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.

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Zero-knowledge proofs

Cryptography

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

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

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EC-Schnorr

Cryptography

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

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.

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ECDSA

Cryptography

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

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.

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