To import a PEM public key using the Web Crypto API, you can use the following steps:
Convert the PEM key to a binary format (DER or Raw)
You can convert the PEM key to DER or Raw format using a variety of tools or libraries such as OpenSSL or a JavaScript library. Here is an example of converting a PEM key to DER using OpenSSL:
openssl rsa -in pubkey.pem -inform PEM -outform DER -pubout -out pubkey.der
Use the Web Crypto API to import the binary public key
To import the binary public key, you can use the crypto.subtle.importKey()
method. You need to specify the type of key, the binary data format, and the algorithm used to generate the key. Here is an example of importing a public key in DER format:
const pubkey = await crypto.subtle.importKey(
"spki", // The type of key
pubkey_der, // The binary data format
{name: "RSA-OAEP", hash: {name: "SHA-256"}}, // The algorithm used to generate the key
true, // Whether the key is extractable (i.e., can be exported)
["encrypt"] // The key's purpose (can be "encrypt", "decrypt", "sign", or "verify")
);
Note that you can replace "RSA-OAEP" with another algorithm, such as "ECDSA", depending on the type of key you are importing.
Once you have imported the public key, you can use it to encrypt data or verify signatures using the Web Crypto API.
Please start posting anonymously - your entry will be published after you log in or create a new account. This space is reserved only for answers. If you would like to engage in a discussion, please instead post a comment under the question or an answer that you would like to discuss
Asked: 2023-07-08 21:10:04 +0000
Seen: 12 times
Last updated: Jul 08 '23
What is the process for generating a dynamic subdomain/URL using vue.js?
How can the style of the loader be modified while the form submission is being processed?
I'm attempting to develop a Javascript-based comments section for my website.
What are some feasible methods to enable MIDI file playback on a web browser?
How can I resolve the issue of being unable to use Fetch to POST an array of Selected Checkboxes?
What is the method to hide the scroll button when reaching the bottom?
What is the process of using a custom nunjucks filter to filter collections in an eleventy template?
What is the method to create a dynamic checkbox using API data?
How can the user id from the login object be utilized in the resolvers after logging in?