@misc{cryptoeprint:2013:786,
    author = {Sanjay Bhattacherjee and Palash Sarkar},
    title = {Tree Based Symmetric Key Broadcast Encryption},
    howpublished = {Cryptology ePrint Archive, Report 2013/786},
    year = {2013},
    url = {https://eprint.iacr.org/2013/786},
}