WO2001073694A3 - Verifiable, secret shuffles of encrypted data, such as elgamal encrypted data for secure multi-authority elections - Google Patents

Verifiable, secret shuffles of encrypted data, such as elgamal encrypted data for secure multi-authority elections Download PDF

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Publication number
WO2001073694A3
WO2001073694A3 PCT/US2001/009550 US0109550W WO0173694A3 WO 2001073694 A3 WO2001073694 A3 WO 2001073694A3 US 0109550 W US0109550 W US 0109550W WO 0173694 A3 WO0173694 A3 WO 0173694A3
Authority
WO
WIPO (PCT)
Prior art keywords
encrypted data
elgamal
verifiable
secure multi
shuffle
Prior art date
Application number
PCT/US2001/009550
Other languages
French (fr)
Other versions
WO2001073694A2 (en
Inventor
C Andrew Neff
Original Assignee
Votehere Inc
C Andrew Neff
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Votehere Inc, C Andrew Neff filed Critical Votehere Inc
Priority to CA002404161A priority Critical patent/CA2404161C/en
Priority to JP2001571337A priority patent/JP2003529256A/en
Priority to AU2001250976A priority patent/AU2001250976A1/en
Priority to AT01924313T priority patent/ATE309655T1/en
Priority to EP01924313A priority patent/EP1302020B1/en
Priority to DE60114833T priority patent/DE60114833T2/en
Publication of WO2001073694A2 publication Critical patent/WO2001073694A2/en
Publication of WO2001073694A3 publication Critical patent/WO2001073694A3/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/321Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving a third party or a trusted authority
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/006Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols involving public key infrastructure [PKI] trust models
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/14Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/30Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3006Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters
    • H04L9/3013Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters involving the discrete logarithm problem, e.g. ElGamal or Diffie-Hellman systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/30Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3066Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves
    • H04L9/3073Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves involving pairings, e.g. identity based encryption [IBE], bilinear mappings or bilinear pairings, e.g. Weil or Tate pairing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3218Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials using proof of knowledge, e.g. Fiat-Shamir, GQ, Schnorr, ornon-interactive zero-knowledge proofs
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/42Anonymization, e.g. involving pseudonyms
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/46Secure multiparty computation, e.g. millionaire problem
    • H04L2209/463Electronic voting
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60Digital content management, e.g. content distribution

Abstract

A cryptographic process permits one to verifiably shuffle a series of input data elements. One or more authorities or individuals 'shuffle', or 'anonymize' the input data (e.g. public keys in discrete log form or ElGamal encrypted ballot data). The process includes a validity construction that prevents any one or more of the authorities or individuals from making any changes to the original data without being discovered by anyone auditing a resulting proof transcipt. The shuffling may be performed at various times. In the election example, the shuffling may be performed, e.g., after ballots are collected or during the registration, or ballot request phase of the election, thereby anonymizing the identities of the voters.
PCT/US2001/009550 2000-03-24 2001-03-24 Verifiable, secret shuffles of encrypted data, such as elgamal encrypted data for secure multi-authority elections WO2001073694A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA002404161A CA2404161C (en) 2000-03-24 2001-03-24 Verifiable, secret shuffles of encrypted data, such as elgamal encrypteddata for secure multi-authority elections
JP2001571337A JP2003529256A (en) 2000-03-24 2001-03-24 Verifiable secret shuffle of encrypted data like El Gamal encrypted data for secure multi-authority elections
AU2001250976A AU2001250976A1 (en) 2000-03-24 2001-03-24 Verifiable, secret shuffles of encrypted data, such as elgamal encrypted data for secure multi-authority elections
AT01924313T ATE309655T1 (en) 2000-03-24 2001-03-24 VERIFIABLE, SECRET MIXTURE OF ENCRYPTED DATA SUCH AS ELGAMAL ENCRYPTED DATA FOR SECURE MULTI-TENSE DIALING
EP01924313A EP1302020B1 (en) 2000-03-24 2001-03-24 Verifiable, secret shuffles of encrypted data, such as elgamal encrypted data for secure multi-authority elections
DE60114833T DE60114833T2 (en) 2000-03-24 2001-03-24 VERIFICABLE, SECRET MIXING OF ENCRYPTED DATA, SUCH AS ELGAMAL ENCRYPTED DATA FOR SECURED MULTI-UNIT SELECTION

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US19178500P 2000-03-24 2000-03-24
US60/191,785 2000-03-24
US25237600P 2000-11-21 2000-11-21
US60/252,376 2000-11-21
US26855101P 2001-02-14 2001-02-14
US60/268,551 2001-02-14

Publications (2)

Publication Number Publication Date
WO2001073694A2 WO2001073694A2 (en) 2001-10-04
WO2001073694A3 true WO2001073694A3 (en) 2003-02-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/009550 WO2001073694A2 (en) 2000-03-24 2001-03-24 Verifiable, secret shuffles of encrypted data, such as elgamal encrypted data for secure multi-authority elections

Country Status (10)

Country Link
US (1) US6950948B2 (en)
EP (1) EP1302020B1 (en)
JP (2) JP2003529256A (en)
AT (1) ATE309655T1 (en)
AU (1) AU2001250976A1 (en)
CA (1) CA2404161C (en)
DE (1) DE60114833T2 (en)
DK (1) DK1302020T3 (en)
ES (1) ES2251475T3 (en)
WO (1) WO2001073694A2 (en)

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WO2001073694A2 (en) 2001-10-04
US20020007457A1 (en) 2002-01-17
JP2003529256A (en) 2003-09-30
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CA2404161C (en) 2006-05-23
DK1302020T3 (en) 2006-03-20
EP1302020B1 (en) 2005-11-09
ATE309655T1 (en) 2005-11-15
US6950948B2 (en) 2005-09-27
DE60114833D1 (en) 2005-12-15
CA2404161A1 (en) 2001-10-04
AU2001250976A1 (en) 2001-10-08
JP2006115550A (en) 2006-04-27
EP1302020A2 (en) 2003-04-16
ES2251475T3 (en) 2006-05-01

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