文件列表:

LICENSE (1071, 2019-03-20)
w1-many_time_pad (0, 2019-03-20)
w1-many_time_pad\Cargo.lock (1676, 2019-03-20)
w1-many_time_pad\Cargo.toml (169, 2019-03-20)
w1-many_time_pad\src (0, 2019-03-20)
w1-many_time_pad\src\main.rs (5775, 2019-03-20)
w2-aes (0, 2019-03-20)
w2-aes\Cargo.lock (8568, 2019-03-20)
w2-aes\Cargo.toml (220, 2019-03-20)
w2-aes\src (0, 2019-03-20)
w2-aes\src\main.rs (4797, 2019-03-20)
w3-file_auth (0, 2019-03-20)
w3-file_auth\Cargo.lock (4826, 2019-03-20)
w3-file_auth\Cargo.toml (188, 2019-03-20)
w3-file_auth\src (0, 2019-03-20)
w3-file_auth\src\main.rs (5224, 2019-03-20)
w4-padding_oracle_attack (0, 2019-03-20)
w4-padding_oracle_attack\Cargo.lock (58020, 2019-03-20)
w4-padding_oracle_attack\Cargo.toml (210, 2019-03-20)
w4-padding_oracle_attack\src (0, 2019-03-20)
w4-padding_oracle_attack\src\main.rs (2329, 2019-03-20)
w5-mitm_dlog (0, 2019-03-20)
w5-mitm_dlog\Cargo.lock (1242, 2019-03-20)
w5-mitm_dlog\Cargo.toml (191, 2019-03-20)
w5-mitm_dlog\src (0, 2019-03-20)
w5-mitm_dlog\src\main.rs (2762, 2019-03-20)
... ...

# Programming Assignments for Cryptography I by Stanford University The programming assignments for Coursera Cryptography I by Stanford University are optional, and are only now being worked on (WIP) after I have finished the course. I'll be using [Rust](https://www.rust-lang.org/) to work on these. ### Week 1: [Many Time Pad][week-1] Let us see what goes wrong when a stream cipher key is used more than once. Given ciphertexts encrypted with the same stream cipher key, our goal is to decrypt the target ciphertext to get the secret message. ### Week 2: [AES in CBC and CTR modes][week-2] Implement two encryption/decryption systems, one using AES in CBC mode and another using AES in counter mode (CTR). Given pairs of AES key and ciphertext, our goal is to recover the plaintext. ### Week 3: [File Authentication System with SHA256][week-3] Our goal in this project is to build a file authentication system that lets browsers authenticate and play video chunks as they are downloaded without having to wait for the entire file. ### Week 4: [Padding Oracle Attack][week-4] Let's experiment with a padding oracle attack against a toy website. Knowing that the website is vulnerable to a CBC padding oracle attack, our goal is to decrypt the ciphertext in the sample intercepted URL. ### Week 5: [Meet-in-the-Middle Attack (MITM) on Discrete Log][week-5] Our goal is to write a program to compute discrete log modulo a prime _p_. In this project, we'll implement an algorithm that runs in time roughly 2^40 = 2^20 using a meet-in-the-middle attack. ### Week 6: [RSA Problem][week-6] Our goal in this project is to break RSA when the public modulus N is generated incorrectly. If the primes _p_ and _q_ are close to each other, _N = pq_ can be easily factored. [week-1]: w1-many_time_pad/ [week-2]: w2-aes/ [week-3]: w3-file_auth/ [week-4]: w4-padding_oracle_attack/ [week-5]: w5-mitm_dlog/ [week-6]: w6-rsa_problem/ ## Acknowledgements The Coursera [Cryptography I](https://www.coursera.org/learn/crypto) is offered by Stanford University and taught by Professor Dan Boneh. Only shortened/paraphrased description of the programming assignments are provided in this repository. Please visit the online course for the original and full description of the weekly programming assignments.

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