SSL utilities
-------------

This folder contain `/bin/sh` openssl utilities.

###### 1. key pair generation (ecdsa:521)

`./keygen`

> Generates a pair of ecdsa:521 keys.


###### 2. file signature generation

`./sign {file_in} {signature_out}`

> Generates a signed signature `{signature_out}` of the file `{file_in}` with the private key created by `./keygen`.


###### 3. file signature validator

`./check {file_in} {signature_in}`

> Checks the file `{file_in}` by the given signature `{signature_in}` with the public key created by `./keygen`.


###### 4. file encryption

`./encrypt {file_in} {encrypted_out}`

> Encrypts the file `{file_in}` into the file `{decrypted_out}` with **AES-256-CBC** using the typed password.


###### 5. file decryption

`./decrypt {encrypted_in} {decrypted_out}`

> Decrypts the file `{file_in}` into the file `{decrypted_out}` with **AES-256-CBC** using the typed password.