Cody

# Problems

1 – 21 of 21
 Problem Title Likes Solvers Difficulty

#### Problem 45320. SHA256 Hashing

Created by: David Hill

Tags hash, sha256

1

4

#### Problem 46627. Output the Montgomery Form of the Input Matrix

Created by: David Hill

Tags montgomery

2

6

#### Problem 46633. Montgomery Reduction Algorithm (REDC)

Created by: David Hill

1

3

#### Problem 46630. Find R*Rp-N*Np=1 given gcd(R,N)=1

Created by: David Hill

1

7

#### Problem 45242. String to Binary Representation

Created by: David Hill

1

11

#### Problem 46696. Number Theoretic Transform (NTT)

Created by: David Hill

0

2

#### Problem 46761. Inverse Number Theoretic Transform (iNTT)

Created by: David Hill

0

1

#### Problem 44959. RSA encryption using public key

Created by: David Hill

1

4

#### Problem 44961. RSA decryption

Created by: David Hill

2

4

#### Problem 45362. RIPEMD160 Hash

Created by: David Hill

Tags hash, ripemd160

1

6

#### Problem 46636. Montgomery Multiplication

Created by: David Hill

1

2

#### Problem 44963. Mask Generation Function (MGF1) for PKCS #1 Standard utilizing Optimal Asymmetric Encryption Padding for RSA Cryptography

Created by: David Hill

1

2

#### Problem 45200. Elliptic Curve Cryptography (ECC) Point Addition

Created by: David Hill

2

9

#### Problem 45243. Binary Array to Hex Representation

Created by: David Hill

1

7

#### Problem 44956. Determine RSA keys (public and private) given two prime number character strings (p and q)

Created by: David Hill

2

10

#### Problem 2444. Obtain the Bitcoin address associated to a given private key

Created by: Óscar

Tags bitcoin

1

5

#### Problem 44964. Optimal Asymmetric Encryption Padding of message for RSA Cryptography

Created by: David Hill

1

2

#### Problem 44965. Optimal Asymmetric Encryption Padding decoding of message for RSA Cryptography

Created by: David Hill

1

2

#### Problem 44924. Create State Array for initiating SHA-3-224 Hash

Created by: David Hill

0

1

#### Problem 45211. AES SubBytes() Transformation

Created by: David Hill

0

3

#### Problem 45213. AES-256 KeyExpansion()

Created by: David Hill

0

2

1 – 21 of 21