public class EncryptData {
    public static String encrypt(String plainText) {
        Blob key = Blob.valueOf('1234567890123456'); // Example key (use a proper key management system)
        Blob data = Blob.valueOf(plainText);
        Blob encryptedData = Crypto.encryptWithManagedIV('AES256', key, data);
        return EncodingUtil.base64Encode(encryptedData);
    }
 
    public static String decrypt(String encryptedText) {
        Blob key = Blob.valueOf('1234567890123456'); 
        Blob encryptedData = EncodingUtil.base64Decode(encryptedText);
        Blob decryptedData = Crypto.decryptWithManagedIV('AES256', key, encryptedData);
        return decryptedData.toString();
    }
}

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