Method encrypt

src/main/java/com/thealgorithms/ciphers/AES.java:2689–2709

Encrypts the plaintext with the key and returns the result @param plainText which we want to encrypt @param key the key for encrypt @return EncryptedText

(BigInteger plainText, BigInteger key)

     * @return EncryptedText
     */
    public static BigInteger encrypt(BigInteger plainText, BigInteger key) {
        BigInteger[] roundKeys = keyExpansion(key);

        // Initial round
        plainText = addRoundKey(plainText, roundKeys[0]);

        // Main rounds
        for (int i = 1; i < 10; i++) {
            plainText = subBytes(plainText);
            plainText = shiftRows(plainText);
            plainText = mixColumns(plainText);
            plainText = addRoundKey(plainText, roundKeys[i]);
        }

        // Final round
        plainText = subBytes(plainText);
        plainText = shiftRows(plainText);
        plainText = addRoundKey(plainText, roundKeys[10]);

        return plainText;
    }

    /**
     * Decrypts the ciphertext with the key and returns the result