This is a partial recode of the OpenSSL crypography library implemented in C
The goal of this project is to understand the behaviour of the OpenSSL library and gain an understanding of the fundamentals of cryptography by reimplementing some of its functionality from the ground up.
md5
sha256
sha512
base64
des
des-ecb
des-csc
genrsa
urandom
rsa
rasutl
Build the binary using make
clang is required to build
Usage for this binary is as follows:
ft_ssl commad [command opts] [command args]
md5
sha256
sha512
The hashing functions have the following usage:
[hash_type] [-pqr] [-s string] [files...]
All hashing functions can read from STDIN, take any number of strings specified as args, or any number of files.
The following flags are supported:
-p - read from STDIN, echo the input and calculate the hash
-q - quiet mode
-r - reverse output format
-s - find the hash for the string to be given after this flag or in the following argument
Note: this sha512 implementation only supports messages with lengths representable using 64 bit integers (~2.3 Exabytes), instead of the 2^128 bit message length required by the standard.