Primer: Fast Private Transformer Inference on Encrypted Data

It is increasingly important to enable privacy-preserving inference for cloud services based on Transformers. Post-quantum cryptographic techniques, e.g., fully homomorphic encryption (FHE), and multi-party computation (MPC), are popular methods to support private Transformer inference. However, exi...

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Published in:2023 60th ACM/IEEE Design Automation Conference (DAC) pp. 1 - 6
Main Authors: Zheng, Mengxin, Lou, Qian, Jiang, Lei
Format: Conference Proceeding
Language:English
Published: IEEE 09.07.2023
Subjects:
Computational modeling
Cryptographic Protocol
Cryptography
Design automation
Fully Homomorphic Encryption
Multi-party computation
Natural language processing
Private Inference
Solids
Transformer
Transformers
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Abstract It is increasingly important to enable privacy-preserving inference for cloud services based on Transformers. Post-quantum cryptographic techniques, e.g., fully homomorphic encryption (FHE), and multi-party computation (MPC), are popular methods to support private Transformer inference. However, existing works still suffer from prohibitively computational and communicational overhead. In this work, we present, Primer, to enable a fast and accurate Transformer over encrypted data for natural language processing tasks. In particular, Primer is constructed by a hybrid cryptographic protocol optimized for attention-based Transformer models, as well as techniques including computation merge and tokens-first ciphertext packing. Comprehensive experiments on encrypted language modeling show that Primer achieves state-of-the-art accuracy and reduces the inference latency by 90.6% ∼ 97.5% over previous methods.
AbstractList It is increasingly important to enable privacy-preserving inference for cloud services based on Transformers. Post-quantum cryptographic techniques, e.g., fully homomorphic encryption (FHE), and multi-party computation (MPC), are popular methods to support private Transformer inference. However, existing works still suffer from prohibitively computational and communicational overhead. In this work, we present, Primer, to enable a fast and accurate Transformer over encrypted data for natural language processing tasks. In particular, Primer is constructed by a hybrid cryptographic protocol optimized for attention-based Transformer models, as well as techniques including computation merge and tokens-first ciphertext packing. Comprehensive experiments on encrypted language modeling show that Primer achieves state-of-the-art accuracy and reduces the inference latency by 90.6% ∼ 97.5% over previous methods.
Author Lou, Qian
Zheng, Mengxin
Jiang, Lei
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  givenname: Qian
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  fullname: Lou, Qian
  email: qian.lou@ucf.edu
  organization: University of Central Florida
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  givenname: Lei
  surname: Jiang
  fullname: Jiang, Lei
  email: jiang60@iu.edu
  organization: Indiana University Bloomington
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Snippet It is increasingly important to enable privacy-preserving inference for cloud services based on Transformers. Post-quantum cryptographic techniques, e.g.,...
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SubjectTerms Computational modeling
Cryptographic Protocol
Cryptography
Design automation
Fully Homomorphic Encryption
Multi-party computation
Natural language processing
Private Inference
Solids
Transformer
Transformers
Title Primer: Fast Private Transformer Inference on Encrypted Data
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