Web Crypto: encrypt/decrypt

This page shows the use of the encrypt() and decrypt() functions of the Web Crypto API. It contains four separate examples, one for each encryption algorithm supported:

• "RSA-OAEP"
• "AES-CTR"
• "AES-CBC"
• "AES-GCM"

Each example has five components:

• A text box containing a message to encrypt.
• A representation of the ciphertext.
• A box that will contain the decrypted ciphertext.
• An "Encrypt" button: this encrypts the text box contents, displays part of the ciphertext, and stores the complete ciphertext.
• A "Decrypt" button: this decrypts the ciphertext and writes the result into the "Decrypted" box.

Try it:

• Press "Encrypt". The ciphertext should appear.
• Press "Decrypt". The decrypted text should appear, and match the original message.
• Edit the text box contents.
• Press "Encrypt" again. A different ciphertext should appear.
• Press "Decrypt" again. The new text box contents should appear next to "Decrypted:".