aes-256

aes-256 example

AES-256 No Mode can only encrypt/decrypt 16 bytes of data.

I have the following AES-256 mode examples,

• aes-256 No Mode (You are here)
• aes-256-cbc Cipher Block Chaining
• aes-256-cfb Cipher FeedBack Mode
• aes-256-ctr Counter Mode
• aes-256-gcm Galois/Counter Mode (I like this one)
• aes-256-ofb Output FeedBack Mode

GitHub Webpage

RUN

run aes.go

Your output should be,

Original Text:           Hello Jeff, only 16 Bytes of this will be encrypted.

The 32-byte Key:         myverystrongpasswordo32bitlength

Encrypted Text:          1d3288a55c1b74826395bd823d7cf0a2
Decrypted Text:          Hello Jeff, only

HOW IT WORKS

This example is simple and very limiting and has no mode. It will only encrypt 16 bytes of data.

Encryption,

// ENCRYPT DATA
block.Encrypt(cipherTextByte, plaintextByte)

Decryption,

// DeCRYPT DATA
block.Decrypt(plainTextByte, cipherTextByte)

This illustration may help,