Cheng Hong 洪澄
@ChengHong_ustc
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Director of Cryptography and Privacy Research, @AntGroup
Joined June 2020
Happy to share that PANTHER has been accepted to CCS2025!.
[New] PANTHER: Private Approximate Nearest Neighbor Search in the Single Server Setting (Jingyu Li and Zhicong Huang and Min Zhang and Jian Liu and Cheng Hong and Tao Wei and Wenguang Chen)
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Fully Homomorphic Encryption (FHE) ensures data confidentiality, but not integrity: Clients have no way to verify whether the results are correctly computed. While Zero-Knowledge Proofs can solve this problem, they come at a high cost—up to 10,000x more expensive than FHE.
[New] ZHE: Efficient Zero-Knowledge Proofs for HE Evaluations (Zhelei Zhou and Yun Li and Yuchen Wang and Zhaomin Yang and Bingsheng Zhang and Cheng Hong and Tao Wei and Wenguang Chen)
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Excited to share our CHES 2025 paper on Fully Homomorphic Encryption (FHE)! FHE suffers from high encryption costs, and Transciphering is a technique that mitigate such costs by encrypting with some efficient symmetric encryption method (e.g., AES), then the server converts.
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XOR gates are free in MPC, but how about FHE? Check our latest results😃.
[New] XBOOT: Free-XOR Gates for CKKS with Applications to Transciphering (Chao Niu and Zhicong Huang and Zhaomin Yang and Yi Chen and Liang Kong and Cheng Hong and Tao Wei)
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RT @Science_Open: 'Recent advances of privacy-preserving machine learning based on (Fully) Homomorphic Encryption' an article on #ScienceOp….
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RT @sunjiao123sun_: Mitigating racial bias from LLMs is a lot easier than removing it from humans! . Can’t believe this happened at the bes….
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Proud to share our latest result in MPC: Secure vector search on 10 million dataset in 23 seconds.
[New] PANTHER: Private Approximate Nearest Neighbor Search in the Single Server Setting (Jingyu Li and Zhicong Huang and Min Zhang and Jian Liu and Cheng Hong and Tao Wei and Wenguang Chen)
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Private Set Intersection (PSI) is perhaps one of the most frequently used privacy preserving techniques in production, however there are too many PSI protocols available. We wrote an ietf draft trying to standardize the simplest ECDH-PSI.
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Introducing our new result Coral (to appear in ACM CCS 2024), which implements the world's first RMFE (Reverse Multiplication-Friendly Embedding) library.
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RT @CarlZha: I love how Black Myth: Wukong starts with the Monkey King Sun Wukong fighting God Erlang Shen, the highlight of Monkey King Wr….
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Bumblebee was accepted to NDSS 2025! End to end secure inference of 7B model under 2PC costs about 13minutes.
[Revised] BumbleBee: Secure Two-party Inference Framework for Large Transformers (Wen-jie Lu and Zhicong Huang and Zhen Gu and Jingyu Li and Jian Liu and Cheng Hong and Kui Ren and Tao Wei and WenGuang Chen)
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RT @business: Ant Group spent a record $2.9 billion on research last year as the fintech giant increased its investment in technology inclu….
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Can't wait to share our latest results in MPC: PUMA - Secure Inference of LLaMA-7B in Five Minutes !
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Our new results on MPC binary circuits (three-party, honest majority) has been accepted by USENIX'Sec 2023. This is more than 3x faster than previous state-of-the-art.
#ePrint Efficient 3PC for Binary Circuits with Application to Maliciously-Secure DNN Inference: Y Li, Y Duan, Z Huang, C Hong, C Zhang, Y Song
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This year's @IEEESSP really provides a good hybrid conference experience. Easy-to-access livestream in Whova, well adjusted network. Most of the sessions we feel no problem when listening and asking questions to remote authors. Hope other conferences could be done in this way.
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