![]() Additionally, btoa() and atob() are not supported by all browsers, so using a third-party library is recommended for compatibility. The built-in JavaScript functions for Base64 encoding and decoding only work with ASCII characters, so if you need to encode or decode non-ASCII characters, a different method must be used.What are the limitations of using the built-in JavaScript functions for Base64 encoding and decoding?.The built-in JavaScript functions for Base64 encoding are btoa() and for decoding are atob().What are the built-in JavaScript functions for Base64 encoding and decoding?.The purpose of Base64 encoding is to convert binary data into ASCII text so that it can be transmitted over a network or stored in a text file.What is the purpose of Base64 encoding?.However, it's important to keep in mind the limitations of Base64 encoding and use it in conjunction with other security measures. It is useful in many different contexts, such as HTTP authentication, email transmission, and data storage. In conclusion, Base64 encoding is a widely used method for converting binary data into ASCII text. It's best used for data that needs to be sent in a text format, but contains non-textual data. It does not provide any confidentiality and it's not recommended to use it for sensitive data. It's a way to encode binary data into ASCII characters. For this reason, it's important to use other security measures, such as encryption, in addition to Base64 encoding.įurthermore, Base64 encoding is not meant for encryption or secure communication. This is because the encoded data follows a predictable pattern, and an attacker may be able to use this pattern to extract sensitive information. So, when working with large files or data, it's important to keep this in mind and plan accordingly.Īdditionally, Base64 encoded data can be vulnerable to certain types of attacks, such as chosen-plaintext attacks. This is because each group of 3 bytes is being encoded into 4 characters. It's also worth noting that Base64 encoded data is approximately 33% larger than the original data. ![]() Base64 encoding is a popular method for this purpose because it is a simple and efficient way to convert binary data into ASCII text. Since email and other text-based systems can only transmit ASCII characters, binary data must be encoded before it can be sent. The server then decodes the string and verifies the credentials.Īnother use case for Base64 encoding is in the transmission of binary data through email or other text-based systems. In this protocol, a client sends a username and password to a server as a Base64 encoded string in the Authorization header of an HTTP request. ![]() One common use case for Base64 encoding is in the HTTP Basic Authentication protocol. With the help of the above examples, you can easily encode and decode data in JavaScript. In this article, we have seen how to perform Base64 encoding and decoding in JavaScript using the built-in btoa() and atob() functions, as well as with the help of third-party libraries. ![]()
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