Conference paper Open Access

Floppy-Sized Group Signatures from Lattices

Boschini Cecilia; Camenisch Jan; Neven Gregory


JSON Export

{
  "files": [
    {
      "links": {
        "self": "https://zenodo.org/api/files/ed047c05-85e5-427e-b338-eb569193ab15/16-Floppy-Sized-Group-Signatures-from-Lattices.pdf"
      }, 
      "checksum": "md5:33c4b59e47d829c6ddc61136832c9f34", 
      "bucket": "ed047c05-85e5-427e-b338-eb569193ab15", 
      "key": "16-Floppy-Sized-Group-Signatures-from-Lattices.pdf", 
      "type": "pdf", 
      "size": 427974
    }
  ], 
  "owners": [
    41483
  ], 
  "doi": "10.1007/978-3-319-93387-0_9", 
  "stats": {
    "version_unique_downloads": 42.0, 
    "unique_views": 34.0, 
    "views": 40.0, 
    "version_views": 40.0, 
    "unique_downloads": 42.0, 
    "version_unique_views": 34.0, 
    "volume": 18830856.0, 
    "version_downloads": 44.0, 
    "downloads": 44.0, 
    "version_volume": 18830856.0
  }, 
  "links": {
    "doi": "https://doi.org/10.1007/978-3-319-93387-0_9", 
    "latest_html": "https://zenodo.org/record/3260096", 
    "bucket": "https://zenodo.org/api/files/ed047c05-85e5-427e-b338-eb569193ab15", 
    "badge": "https://zenodo.org/badge/doi/10.1007/978-3-319-93387-0_9.svg", 
    "html": "https://zenodo.org/record/3260096", 
    "latest": "https://zenodo.org/api/records/3260096"
  }, 
  "created": "2019-06-28T09:30:38.162567+00:00", 
  "updated": "2020-01-20T15:24:51.061605+00:00", 
  "conceptrecid": "3260095", 
  "revision": 6, 
  "id": 3260096, 
  "metadata": {
    "access_right_category": "success", 
    "doi": "10.1007/978-3-319-93387-0_9", 
    "description": "<p>We present the first lattice-based group signature scheme whose cryptographic artifacts are of size small enough to be usable in practice: for a group of&nbsp;225225&nbsp;users, signatures take 910 kB and public keys are 501 kB. Our scheme builds upon two recently proposed lattice-based primitives: the verifiable encryption scheme by Lyubashevsky and Neven (Eurocrypt 2017) and the signature scheme by Boschini, Camenisch, and Neven (IACR ePrint 2017). To achieve such short signatures and keys, we first re-define verifiable encryption to allow one to encrypt a function of the witness, rather than the full witness. This definition enables more efficient realizations of verifiable encryption and is of independent interest. Second, to minimize the size of the signatures and public keys of our group signature scheme, we revisit the proof of knowledge of a signature and the proofs in the verifiable encryption scheme provided in the respective papers.</p>", 
    "language": "eng", 
    "title": "Floppy-Sized Group Signatures from Lattices", 
    "license": {
      "id": "CC-BY-4.0"
    }, 
    "relations": {
      "version": [
        {
          "count": 1, 
          "index": 0, 
          "parent": {
            "pid_type": "recid", 
            "pid_value": "3260095"
          }, 
          "is_last": true, 
          "last_child": {
            "pid_type": "recid", 
            "pid_value": "3260096"
          }
        }
      ]
    }, 
    "communities": [
      {
        "id": "futuretpm-h2020"
      }
    ], 
    "grants": [
      {
        "code": "779391", 
        "links": {
          "self": "https://zenodo.org/api/grants/10.13039/501100000780::779391"
        }, 
        "title": "Future Proofing the Connected World: A Quantum-Resistant Trusted Platform Module", 
        "acronym": "FutureTPM", 
        "program": "H2020", 
        "funder": {
          "doi": "10.13039/501100000780", 
          "acronyms": [], 
          "name": "European Commission", 
          "links": {
            "self": "https://zenodo.org/api/funders/10.13039/501100000780"
          }
        }
      }
    ], 
    "keywords": [
      "public-key cryptography", 
      "Lattices, Group Signature", 
      "Verifiable Encryption"
    ], 
    "publication_date": "2018-05-15", 
    "creators": [
      {
        "name": "Boschini Cecilia"
      }, 
      {
        "name": "Camenisch Jan"
      }, 
      {
        "name": "Neven Gregory"
      }
    ], 
    "meeting": {
      "title": "ACNS 2018"
    }, 
    "access_right": "open", 
    "resource_type": {
      "subtype": "conferencepaper", 
      "type": "publication", 
      "title": "Conference paper"
    }
  }
}
40
44
views
downloads
Views 40
Downloads 44
Data volume 18.8 MB
Unique views 34
Unique downloads 42

Share

Cite as