Quantum Oblivious Transfer Based on POVM Measurements

- Oblivious transfer OT is an important primitive in cryptography. In chosen one-out-of-two OT, Alice offers two bits, one of which Bob can choose to read, not learning any information about the other bit. Alice on the other hand does not obtain any information about Bob's choice. We present a new technique for the same task in quantum environment, based on POVM measurements. It is shown that our method has two important advantages over the previous approaches. First, it is unconditionally secure without invoking a commitment scheme, and second, it is more efficient in terms of communication complexity. Key words: Oblivious transfer, POVM measurements, Unconditional security

• Type: Conference
• Year: 2006
• Where: FCS
• Authors: Wei Yang, Liusheng Huang, Yonglong Luo, Mingjun Xiao
• Keywords: FCS 2006, FCS 2007, Oblivious Transfer, Oblivious Transfer Ot, POVM Measurements