Module crypto_pan 

Crypto-PAn prefix-preserving IP address anonymization.

Implements the algorithm by Xu, Fan, Ammar & Moon (2002) using AES-128 as the underlying block cipher. Two addresses sharing a k-bit network prefix are guaranteed to share a k-bit prefix after anonymization.

Key format

The 32-byte key is split into:

• bytes [0..16]: AES-128 encryption key
• bytes [16..32]: padding material used as the initial cipher input

Structs

CryptoPan

Crypto-PAn anonymizer backed by AES-128.