encryptions

Encryption

Overview

This script demonstrates cryptographic operations like AES encryption/decryption, RSA encryption/decryption, and hashing using Python's pycryptodome, base64, and hashlib library.

Features

AES Encryption (ECB): Encrypts and decrypts data using AES in ECB mode.
RSA Key Pair Generation: Creates 2048-bit RSA keys.
RSA Encryption/Decryption: Uses PKCS1_OAEP padding for secure RSA operations.
Hashing: Supports MD5, SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512.

Dependencies

pip install -r requirements.txt

Function Details

AES Encryption/Decryption

aes_encrypt_ecb(data, key)

    Encrypts plaintext using AES in ECB mode.

    Args:

        data (str): The plaintext to encrypt.

        key (bytes): A key of length 16, 24, or 32 bytes.

    Returns:

        Encrypted data (bytes).Function Details
    
aes_decrypt_ecb(ciphertext, key)

    Decrypts AES-encrypted ciphertext in ECB mode.

    Args:

        ciphertext (bytes): The encrypted data.

        key (bytes):
            The decryption key.

    Returns:

        Decrypted plaintext (str).

RSA Encryption/Decryption

generate_rsa_keys()

    Generates a pair of RSA public and private keys.

    Returns:

        private_key (bytes): RSA private key.

        public_key (bytes): RSA public key.

rsa_encrypt(plaintext, public_key)

    Encrypts plaintext using an RSA public key.

    Args:

        plaintext (str): The plaintext to encrypt.

        public_key (bytes): The RSA public key.

    Returns:

        Encrypted data (bytes).

rsa_decrypt(encrypted_data, private_key)

    Decrypts RSA-encrypted data using a private key.

    Args:

        encrypted_data (bytes): The encrypted data.

        private_key (bytes): The RSA private key.

    Returns:

        Decrypted plaintext (str).

             

All hashing functions:

md5_hash(data): Generates an MD5 hash of the input data.

sha1_hash(data): Generates a SHA-1 hash.

sha224_hash(data): Generates a SHA-224 hash.

sha256_hash(data): Generates a SHA-256 hash.

sha384_hash(data): Generates a SHA-384 hash.

sha512_hash(data): Generates a SHA-512 hash.

Args: data (str): Input string to hash.

Returns: Hash value (str).

Outputs

RSA: Encrypts and decrypts plaintext securely.
AES: Encrypts and decrypts text using AES with a random key.
Hashing: Generates cryptographic hashes for text.

Security Notes

ECB mode leaks patterns; use safer modes like CBC or GCM for production.
This script is for educational purposes only.

License

This project is licensed under the Apache2 reset License