# News — Antonio Guimarães

- Nov 9, 2026: [TUTTI](https://antonioguimaraes.org/publications/tutti/), parallel CKKS bootstrapping in under 3 ms on CPU, is on arXiv and ePrint.
- Oct 16, 2026: [Tulva: Practical Asynchronous Threshold FHE](https://antonioguimaraes.org/publications/tulva/) accepted at IEEE S&P 2027.
- Aug 15, 2026: [Batch, Pack, and Prove: More Efficient Verifiable Computation for CKKS](https://antonioguimaraes.org/publications/batch-pack-prove/) accepted at ASIACRYPT 2026.
- Jan 23, 2026: [PETCHA](https://antonioguimaraes.org/publications/petcha/), post-quantum transciphering with ChaCha, is on ePrint and accepted at PQCrypto 2026.
- Nov 23, 2025: [Nostalgia Cipher](https://antonioguimaraes.org/publications/nostalgia-cipher/) accepted at IACR ToSC 2025: filtered LFSRs for hybrid homomorphic encryption with sub-50 ms latency.
- Oct 2025: Awarded a [Juan de la Cierva postdoctoral fellowship](https://antonioguimaraes.org/juan-de-la-cierva/) by the Spanish Ministry of Science.
- Oct 13, 2025: Presented [Fast amortized bootstrapping with small keys](https://antonioguimaraes.org/publications/fast-amortized-bootstrapping/) at ACM CCS 2025 in Taipei.
- Aug 17, 2025: [Verifiable Computation for Approximate Homomorphic Encryption Schemes](https://antonioguimaraes.org/publications/verifiable-approximate-he/) presented at CRYPTO 2025.
- Jun 23, 2025: [Homomorphic WiSARDs](https://antonioguimaraes.org/publications/homomorphic-wisards/), encrypted training of weightless neural networks, presented at ACNS 2025.
- Jun 5, 2025: [Secure and efficient transciphering for FHE-based MPC](https://antonioguimaraes.org/publications/transciphering-fhe-mpc/) published in IACR TCHES 2025(3).
- Dec 9, 2024: [HELIOPOLIS](https://antonioguimaraes.org/publications/heliopolis/), verifiable computation over encrypted data from IOPs, presented at ASIACRYPT 2024.
- 2024: Best Ph.D. thesis award at the 25th Brazilian Symposium on High-Performance Computing Systems (WSCAD 2024).
- 2023: Joined the IMDEA Software Institute in Madrid as a postdoctoral researcher.