Preprint | Haibo Chenghttps://hbcheng.net/tag/preprint/PreprintWowchemy (https://wowchemy.com)en-us© 2026 Haibo ChengThu, 02 Apr 2026 00:00:00 +0000https://hbcheng.net/media/icon_hu0b7a4cb9992c9ac0e91bd28ffd38dd00_9727_512x512_fill_lanczos_center_2.pngPreprinthttps://hbcheng.net/tag/preprint/On Optimal Information-Theoretic Security in Symmetric Encryption under Low-Entropy Keyshttps://hbcheng.net/publication/optimal-low-entropy-encryption/Thu, 02 Apr 2026 00:00:00 +0000https://hbcheng.net/publication/optimal-low-entropy-encryption/