[−][src]Module ibe::waters_naccache
Identity Based Encryption Waters-Naccache scheme on the BLS12-381 pairing-friendly elliptic curve.
- Inspired by: CHARM implementation
- From: "Secure and Practical Identity-Based Encryption"
- Published in: IET Information Security, 2007
Uses SHA3-512 for hashing to identities.
The structure of the byte serialisation of the various datastructures is not guaranteed to remain constant between releases of this library. All operations in this library are implemented to run in constant time.
Structs
| CipherText | Encrypted message. Can only be decrypted with an user secret key. |
| Identity | Field parameters for an identity. |
| Message | A point on the paired curve that can be encrypted and decrypted. |
| PublicKey | Public key parameters generated by the PKG used to encrypt messages. |
| SecretKey | Secret key parameter generated by the PKG used to extract user secret keys. |
| UserSecretKey | Points on the paired curves that form the user secret key. |
Functions
| decrypt | Decrypt ciphertext to a message using a user secret key. |
| encrypt | Encrypt a message using the PKG public key and an identity. |
| extract_usk | Extract an user secret key for a given identity. |
| setup | Generate a keypair used by the Private Key Generator (PKG). |