ECDSA tool

This simple tool implements ECDSA key pair generation and signature generation as well as verification using Haskell. It was created as a project for FLP course at BUT FIT as an introduction to functional language haskell.

The original assignment can be found in FLP_project1_2023.pdf.

Requires

Installation of haskell packages:

• Parsec
• Random

Usage

make

./flp22-fun [-i|-k|-s|-v] [input]

The input is either a file path from which to read the input itself or if left unsepcified the stdin.

Brief options description:

• Switch -i:
  • takes an eliptic curve from the input
  • prints it to the stdout.
• Switch -k:
  • takes an eliptic curve from the input
  • generates a key pair.
• Switch -s:
  • takes an eliptic curve, a key pair and a message hash from the input
  • generates a signature.
• Switch -v:
  • takes an eliptic curve, a signature, a publicKey and a message hash from the input
  • verifies the specified signature.

Examples for possible inputs can be seen in tests/test*.in.