Download and study IETF RFC-6070 document
PKCS #5: Password-Based Key Derivation Function 2 (PBKDF2) Test Vectors.

Write a C Linux program (with support of OpenSSL cryptographic library) that will
compute and verify all 6 PBKDF2-SHA1 test vectors described it the RFC document.

Then run the same tests (exactly the same input parameters)
but switch to PBKDF2-SHA256 and set output key length to 32 bytes.
Print derived keys to the screen in hexadecimal format.
(Output will of course differ from the original vectors.)

Your submitted zip archive should contain one C program that checks all 6 RFC-6070
vectors and then run all tests mentioned above.
The output must contain at least 6 hexadecimal strings (keys) for the PBKDF2-SHA256 variant.

The source code must be compilable on the provided virtual machine (Fedora)
or on the aisa server.

Deadline: October 23, 2019 (8:00 AM), maximum is 10 points.

Hints:
 - start with 3_pbkdf_openssl example
 - spaghetti code (use functions) means at least 2 points down
 - comment the code
 - use CRYPTO_memcmp from OpenSSL to compare binary data
 - hexa output example (additional info is not mandatory):

# Derived key using 1. vector PBKDF2-SHA256 (P="password", S="salt", c=1, dkLen=32)
# 12 0f b6 cf fc f8 b3 2c 43 e7 22 52 56 c4 f8 37 a8 65 48 c9 2c cc 35 48 08 05 98 7c b7 0b e1 7b
...