How To Encrypt Credit Card Information?

    Nowadays, credit cards are most commonly used as a mode of payment while purchasing items from shopping malls and through online marketplace. Therefore, it is necessary to encrypt credit card information in order to keep it secure.

    Yes, the credit card information can be encrypted in a number of ways in order to keep it secure. Some of the methods are:

    • Storing the data in magnetic strip
    • Encrypting the information through an algorithm

    This article will explain and expound how the credit card information is encrypted. Furthermore, the ways and methods of doing so along with the possible benefits and consequences will be discussed at length. 

    What Is Credit Card Encryption?

    Encryption of credit cards is a security mechanism that reduces the possibility that bank card data may be stolen. 

    Encryption of credit cards covers the safety of the card, the terminal where the card is read, and the transfer of the card’s information between both the terminal and the back-end computer system.

    Credit Card Encryption

    Credit cards are an essential component of the payment procedure. Consumers anticipate that the majority of companies will accept credit cards as a form of payment rather than depending on cash transactions.

    A customer may inspect his or her credit card using electronic terminals provided by businesses, with the terminals transmitting the card’s identifying information to data centers in order to ensure that the customer has adequate cash.

    An algorithm scrambles confidential material including the account number when a credit card is used to make a purchase. 

    The goal is to make it difficult to obtain this data without the appropriate encryption key that allows the merchant or financial institution to execute transactions.

    The information is inaccessible until it is decoded by the key, making it secure so long as it stays locked. Due to the fact that credit cards need an electronic transmission of knowledge, their information might be stolen by unauthorized parties.

    Among the several types of fraud are skimming, carding, or RAM scraping. Credit cards are encrypted using a number of ways by card issuers. Typically, the magnetic strip just on the reverse of a card is encrypted and may only be viewed by a card reader.

    See also  Are Ad Blockers Safe? If Yes How To Find A Good One?

    Since a PIN makes it harder for fraudulent credit cards to be validated and used, relying solely on magnetic strips provides a less secure way than necessitating the usage of a PIN-and-chip.

    It may be more difficult for thieves or hackers to obtain information from a smart card with just an electronic chip than from other kinds of encryption or security designed to secure credit account information.

    How To Encrypt Credit Card Information?

    Following are the methods to encrypt credit card information in order to keep it secure:-

    1. Credit Card Transactions By RSA 

    Credit card transactions by RSA are more secure. We would prefer to protect this information, ensuring that no malevolent third party may intercept transcaction details. 

    RSA is an encryption algorithm that is commonly used during secure data transfer and is regarded as one of the earliest practical public-key cryptosystems.

    RSA has withstood over four decades of assaults, enabling this algorithm of selection for encrypting Online credit card transactions, safeguarding e-mail, and verifying phone conversations.

    The usage of asymmetric keys is one of the differentiating approaches utilized in public-key cryptography. In this system, the message is encrypted with the public key and decrypted with the private key.

    The keys are mathematically connected, but the variables are designed so that it is likely impossible or excessively costly to calculate the private key as from the public key.

    2. Tokenization

    Having an understanding of the distinction between these two security measures will allow you to choose the one that is ideal for your organization.

    Tokenization is the process of removing a card’s information from an organization’s internal network and substituting it with a token.

    For instance, a credit card containing the digits 1234 5678 8765 4321 would’ve been transformed into H92JK7DUP4359L2ST, with varying tokens for different retailers.

    Thieves have no use for these numbers since they cannot reverse engineer the code into the card details. Using an algorithm, encryption obscures the buyer’s data, rendering the card’s contents illegible without the correct key.

    The information is kept safe from the time of purchase (in-store or online) again until it reaches its destination. The information is unreadable at rest, during motion, or until the system’s key decrypts it, reducing the likelihood that a hacker would steal it.

    See also  How Secure is Your iPad for Internet Banking?

    Both are good options for combating credit card fraud.

    Is RSA Fully Secure?

    The RSA algorithm had maintained a safe method for exchanging encrypted data for over four decades. 

    Currently, factoring the modulus in is the only technique to totally break the RSA cryptographic algorithm in use today, which is significantly more advanced than the one presented above.

    The fact that no quadratic technique for factoring huge numbers on a regular computer has yet been discovered protects RSA from such an attack. However, it has not been demonstrated that such an algorithm does not exist.

    In 2010, the biggest number reduced by a general-purpose factorization algorithm employing a state-of-the-art networked implementation was 768 bits long.

    The normal length of RSA keys is between 1024 and 2048 bits, however some experts fear that 1024-bit keys might be compromised in the near future.

    Why Employ Encryption?

    In the past, systems employed the magnetic stripe just on the rear of a card or even the CVV number for approving payments. However, during the 2014 fraud crisis, these systems were severely compromised by malware.

    Once the data has been stolen, it may be transferred to a new strip and utilized to make fraudulent transactions. A chip on an encrypted credit or debit card (also smart card) is far more difficult to duplicate.

    When paired with just an encoded card reader, like an EMV, it becomes extremely hard for thieves to recreate the information. These modern methods utilize crucial encryption keys.

    There are two sorts of keys: public and private. The former is exclusively used to encrypt the data, whereas private keys are used to decode it.

    Regular key rotation increases the security of this system by making it more difficult for fraudsters to get private keys and limiting the amount of data that can be kept on a single key.

    This strategy has shown to be remarkably efficient in both the United States and Europe, as well as one of the finest ways to ensure the security of your customers’ information.

    See also  NMAP for Beginners

    Encryption And Your Organization

    Nationwide, businesses are using EMV readers not only to make transactions secure, but also to better comply with PCI encryption regulations.

    To use these services, you may ensure that your firm will not be held accountable there under Fraud Liability Shift throughout the case that sensitive data is compromised.

    Your clients will feel more secure knowing that their privacy is not at risk, while you can rest easy knowing that these processes are in place to safeguard your company’s image and legal status.

    Comprehension Of Credit Card Encryption

    Credit and debit cards have become the preferred method of payment for many. This need has compelled firms to install card-swiping terminals for daily operations. There has recently been an upsurge in scams, such as the online theft of credit card information.

    The scenario necessitated a security mechanism that can safeguard the transmission of client data via the internet for processing payments.

    Why Is Credit Card Encryption Crucial?

    The process of credit card encryption scrambles the transaction data based on a specific algorithm, rendering it inaccessible to fraudsters without the associated encryption key.

    The key is held solely by the merchant as well as the card’s banking institution. This information is inaccessible until the merchant decodes it with the corresponding key. It is secure so long as the mechanism stays unlocked.


    In the light of above cited facts and arguments, it can be reasonably inferred that credit card information is the most important piece of data that needs utmost security possible. Therefore, it is essential to ensure the security of credit card information.

    Encryption of credit cards is a security mechanism that prevents access to the credit card data without the appropriate encryption key, allowing the person to complete transactions while ensuring the data security.

    In this regard, the credit card information can be secured through encryption. There are different methods and modes of encryption that are used by banks and authorities issuing such credit cards. Some of them have been provided as above. 

    Latest articles

    Related articles