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Cryptography with Python 9: Implementing AES in Python #3

Entire course: ➡️ https://www.youtube.com/playlist?list=PLWjMI9CAmVU4–SmpzgswTvxLkZqC9QWn ⏰ Timestamps for content in this video ⏰ 00:00 Implementing the AES key expansion in Python 05:44 Implementing the AES word rotation function RotWord in Python 06:32 Implementing the AES word substitution function SubWord in Python 09:17 Implementing the AES round constant function Rcon in Python 🔷🔷 About 🔷🔷 This Fundamental […]

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4 January, 2023

Cryptography with Python 10: Implementing AES in Python #4

Entire course: ➡️ https://www.youtube.com/playlist?list=PLWjMI9CAmVU4–SmpzgswTvxLkZqC9QWn ⏰ Timestamps for content in this video ⏰ 00:00 Implementing the AES adding of round key function AddRoundKey in Python 02:50 Implementing the AES byte substitution function SubBytes in Python 03:54 Implementing the AES row shifting function ShiftRows in Python 🔷🔷 About 🔷🔷 This Fundamental Cryptography in Theory and Python lesson […]

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4 January, 2023

Cryptography with Python 7: Implementing AES in Python #1

Entire course: ➡️ https://www.youtube.com/playlist?list=PLWjMI9CAmVU4–SmpzgswTvxLkZqC9QWn ⏰ Timestamps for content in this video ⏰ 00:00 Introducing NIST FIPS 197 as official standardization document of AES 01:23 Setting up the AES implementation in Python using official NIST test vectors 🔷🔷 About 🔷🔷 This Fundamental Cryptography in Theory and Python lesson is the 1st of 5 parts demonstrating, how […]

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4 January, 2023

Cryptography with Python 8: Implementing AES in Python #2

Entire course: ➡️ https://www.youtube.com/playlist?list=PLWjMI9CAmVU4–SmpzgswTvxLkZqC9QWn ⏰ Timestamps for content in this video ⏰ 00:00 Implementing the AES encryption cipher in Python 05:24 Implementing the internal AES state in Python 🔷🔷 About 🔷🔷 This Fundamental Cryptography in Theory and Python lesson is the 2nd of 5 parts demonstrating, how AES can be implemented in Python straight out […]

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4 January, 2023

Cryptography with Python 6: Using secure AES-CBC in Python

Entire course: ➡️ https://www.youtube.com/playlist?list=PLWjMI9CAmVU4–SmpzgswTvxLkZqC9QWn ⏰ Timestamps for content in this video ⏰ 00:00 Recap of the CBC block cipher mode of operation 01:44 Using AES-CBC in Python 04:04 Demonstrating the security of AES-CBC with Python 🔷🔷 About 🔷🔷 This Fundamental Cryptography in Theory and Python lesson presents, how AES-CBC can be used in Python and […]

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4 January, 2023

Cryptography with Python 4: Symmetric encryption with AES and ECB/CBC

Entire course: ➡️ https://www.youtube.com/playlist?list=PLWjMI9CAmVU4–SmpzgswTvxLkZqC9QWn ⏰ Timestamps for content in this video ⏰ 00:00 Symmetric encryption 02:45 Advanced Encryption Standard (AES) 04:34 Electronic-Code-Book (ECB) block cipher mode of operation 06:42 Cipher-Block-Chaining (CBC) block cipher mode of operation 10:00 AES keys and strength of security 14:11 Symmetric key distribution problem 🔷🔷 About 🔷🔷 This Fundamental Cryptography in […]

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3 January, 2023

Cryptography with Python 5: Using insecure AES-ECB in Python

Entire course: ➡️ https://www.youtube.com/playlist?list=PLWjMI9CAmVU4–SmpzgswTvxLkZqC9QWn ⏰ Timestamps for content in this video ⏰ 00:00 Recap of the AES block cipher and the ECB block cipher mode of operation 01:19 Using AES-ECB in Python 08:17 Demonstrating the insecurity of AES-ECB with Python 🔷🔷 About 🔷🔷 This Fundamental Cryptography in Theory and Python lesson presents, how AES-ECB can […]

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3 January, 2023

Cryptography with Python 2: Cryptography & its classic security goals

Entire course: ➡️ https://www.youtube.com/playlist?list=PLWjMI9CAmVU4–SmpzgswTvxLkZqC9QWn ⏰ Timestamps for content in this video ⏰ 00:00 Cryptology, cryptography, or cryptanalysis? 02:23 Classic goals of information security 04:36 Classic goals of cryptography 🔷🔷 About 🔷🔷 This Fundamental Cryptography in Theory and Python lesson introduces the subject cryptography together with its 4 classic security goals confidentiality, integrity, authenticity, and availability. […]

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3 January, 2023

Cryptography with Python 3: Confidentiality as a security goal

Entire course: ➡️ https://www.youtube.com/playlist?list=PLWjMI9CAmVU4–SmpzgswTvxLkZqC9QWn ⏰ Timestamps for content in this video ⏰ 00:00 Confidentiality as a security goal 00:56 Confidentiality in the analog world with safes 04:06 Confidentiality in the analog world with mailboxes 07:15 Confidentiality in the analog world with safes and mailboxes 🔷🔷 About 🔷🔷 This Fundamental Cryptography in Theory and Python lesson […]

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3 January, 2023

Cryptography with Python 1: Introduction and content of course

Entire course: ➡️ https://www.youtube.com/playlist?list=PLWjMI9CAmVU4–SmpzgswTvxLkZqC9QWn ⏰ Timestamps for content in this video ⏰ 00:00 Introduction 00:20 Goals of course 01:43 Content of course 🔷🔷 About 🔷🔷 This is the introduction lesson to the 6h Fundamental Cryptography in Theory and Python course. Across 40 lessons, this course covers fundamental concepts of classic cryptography such as encryption, cryptographic […]

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3 January, 2023

BLS Signatures and Key Sharing with Crypto Pairs

Demo: https://asecuritysite.com/encryption/js_bls Pairing: https://asecuritysite.com/encryption/#pairing Article: How To Create a General Election With a Single Signature for All Votes: Meet Boneh–Lynn–Shacham (BLS) signatures https://medium.com/asecuritysite-when-bob-met-alice/boneh-lynn-shacham-bls-signatures-d053cf049aa8?source=friends_link&sk=df7813cfce8b424fb958400692df988f

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29 November, 2022

Introducción a ZK Rollups

¿Alguna vez te preguntaste cuál es la mejor forma para escalar Ethereum? ¿Hacia dónde van los smart contracts? Henri nos hace una introducción a ZK Rollups y nos introduce dentro del desarrollo de Cairo con una demo de NFTs. Guías oficiales para desarrollar: github.com/starknet-edu/starknet-cairo-101 github.com/starknet-edu/starknet-erc20 github.com/starknet-edu/starknet-erc721

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29 November, 2022