Application of Fuzzy Logic in Identity-Based Cryptography

• Main Author: Odyurt, Uraz
• Format: Others
• Language: English
• Published: Linnéuniversitetet, Institutionen för matematik (MA) 2014
• Subjects: Cryptography; Fuzzy logic; Identity-Based Encryption (IBE); Fuzzy Identity-Based Encryption (FIBE); Selective-ID model; Encryption scheme; Kriptografi; Bulanık mantık; Kimlik Tabanlı Şifreleme; Bulanık Kimlik Tabanlı Şifreleme; Seçici-ID modeli; Şifreleme şeması; Mathematics; Matematik
• Online Access: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-35134

This work explains the fundamental definitions required to define and create Fuzzy Identity-Based Encryption schemes as an error-tolerant version of Identity-Based Encryption schemes, along with three different examples of such creations. These examples are Sahai-Waters' FIBE, Baek et al.'s EFIBE-I and EFIBE-II. The required Set-up, Key Generation, Encryption and Decryption algorithms for each scheme are formalized and the proofs of security using the Selective-ID model are introduced. Subtle differences between the three schemes are discussed, including their computational efficiency comparison. The writing is intended as a self-sufficient resource for readers, containing the schemes and background definitions.