> ## Documentation Index
> Fetch the complete documentation index at: https://docs.projectreal.gg/llms.txt
> Use this file to discover all available pages before exploring further.

# Cryptography

> Encoding, hashing, encryption, and compression.

Encoding, hashing, encryption, and compression.

| Function navigation                            | Description                                                                                                                       |
| ---------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------- |
| [`base64_decode`](./base64-decode)             | Decodes Base64 input with Base64 decoder and returns the decoded bytes as a Lua string.                                           |
| [`base64_encode`](./base64-encode)             | Encodes a Lua string's bytes with Base64 encoder, using = padding and no line breaks.                                             |
| [`crypt.decrypt`](./crypt-decrypt)             | Decrypts Base64 ciphertext with a Base64-decoded key and required Base64 IV using AES CBC or ECB.                                 |
| [`crypt.encrypt`](./crypt-encrypt)             | Encrypts Lua string bytes with AES CBC, ECB, or CTR using a Base64-decoded key, then returns Base64 ciphertext and the IV result. |
| [`crypt.generatebytes`](./crypt-generatebytes) | Generates random bytes with random byte generator and returns them Base64-encoded as a Lua string.                                |
| [`crypt.generatekey`](./crypt-generatekey)     | Generates 32 random raw bytes with random byte generator and returns them Base64-encoded as a Lua string.                         |
| [`crypt.hash`](./crypt-hash)                   | Hashes Lua string bytes with a supported crypto library hash algorithm and returns a lowercase hexadecimal digest.                |
| [`crypt.hmac`](./crypt-hmac)                   | Computes a crypto library HMAC over Lua string bytes using a raw Lua string key and returns a Base64 digest.                      |
| [`crypt.random`](./crypt-random)               | Generates raw random bytes with random byte generator and returns them as a Lua string.                                           |
| [`lz4compress`](./lz4compress)                 | Compresses Lua string bytes with LZ4 block compression and returns the raw compressed bytes as a Lua string.                      |
| [`lz4decompress`](./lz4decompress)             | Decompresses raw LZ4 block bytes with LZ4 block decompression and returns raw decompressed bytes as a Lua string.                 |