LightNews — News, ranked by scholars

@worldending.bsky.social

𝑐𝑎𝑛𝑜𝑛 character inked by astral, written for #MVRP / #STPRP / #NSFWRP / #LEWDRP / #FANTASYRP / #HORRORRP. can be adapted to fandoms.
( credits to lucidbeech / kapodass / circusmantis. )
the princess you have to slay...?

October 9, 2026 at 11:03 AM

THE LONG QUIET.

@pristinecut.bsky.social

• Penned by Omen
• Mun is 18+

The Long Quiet from Slay The Princess.
Writing style may be confusing. Ask for clarification if needed.

#slaytheprincessrp #stprp

September 6, 2026 at 3:02 AM

The Damsel.

@all-for-you.bsky.social

• Penned by Omen
• Mun is 18+
• From @pathinthewoods.bsky.social.

#slaytheprincessrp #stprp

August 17, 2026 at 3:50 AM

The decider.

@thelongquiet.bsky.social

⠀
#SlaythePrincessRP, #StPRP, #MVRP
⠀

April 2, 2026 at 9:25 AM

The Stranger.

@pathinthewoods.bsky.social

#slaytheprincessrp #stprp

March 8, 2026 at 2:23 PM

ePrint Updates

@eprint.ing.bot

The Motte-and-Bailey Framework for Leakage-Resilient Accordion Modes: Featuring Qaitbay and Alicante (Mario Marhuenda Beltrán, Mustafa Khairallah) ia.cr/2026/122

Abstract. Accordion modes have experienced a surge in popularity, partially motivated by the recent NIST Accordion modes project. None of the popular candidates is leakage-resilient by default. In this work, we study the design of a leakage-resilient Accordion mode. Firstly, we present a generic analysis of the Encode-then-Encipher paradigm in the leakage-resilient setting, assuming the enciphering is a leakage resilient STPRP. However, we show that the resulting security, while strong, suffers from some limitations. Next, we introduce Motte-and-Bailey, a general framework building leakage resilient accordion modes, in the spirit of the PIV construction. Motte-and-Bailey, or MaB, for short, is a leveled construction, requiring light assumptions on most of its components to guarantee good STPRPl2, CIML2 and CCAmL2 security. In particular, we require two fully protected calls to a TBC, a collision-resistant hash function (with unbounded or light leakage), and an ideal leakage-resilient PRG, secure against single-trace attacks. Additionally, we present particular instantiations, Qaitbay and Alicante. In Qaitbay the PRG and the hash function are replaced by Sponge functions, while an independent TBC is used for the leak-free calls. Alicante makes use of ideal ciphers, and uses the MDPH hash function and the 2PRG construction, while the leak-free calls are implemented using independent calls to the ideal cipher. Also, we propose to instantiate the TBC in Qaitbay with the permutation based XPX. Moreover, Qaitbay and Alicante come in two flavors, the first one is a normal instantiation of MaB, while the second one, at the cost of one additional protected call to a TBC, provides CCAMl2, a quite elusive security property. We note that our construction provide some of the strongest combinations of security notions that are believed to be possible: Qaitbay-1 and Alicante-1 provide STPRPl2 +CIML2 +CCAMl2, while Qaitbay-2 and Alicante-2 provide the same combination in addition to CCAmL2.

January 26, 2026 at 6:18 PM

ePrint Updates

@eprint.ing.bot

Beyond-Birthday-Bound Security with HCTR2: Cascaded Construction and Tweak-based Key Derivation (Yu Long Chen, Yukihito Hiraga, Nicky Mouha, Yusuke Naito, Yu Sasaki, Takeshi Sugawara) ia.cr/2026/085

Abstract. The block cipher (BC) mode for realizing a variable-input-length strong tweakable pseudorandom permutation (VIL-STPRP), also known as the accordion mode, is a rapidly growing research field driven by NIST’s standardization project, which considers AES as a primitive. Widely used VIL-STPRP modes, such as HCTR2, have birthday-bound security and provide only 64-bit security with AES. To provide higher security, NIST is considering two directions: to develop new modes with beyond-birthday-bound (BBB) security and to use Rijndael-256-256 with HCTR2. This paper pursues the first direction while maintaining compatibility with HCTR2. In particular, we provide two solutions to achieve BBB security for two different approaches: (i) general cases without any conditions on the tweak and (ii) under the condition that the same tweak is not repeated too often as adopted in bbb-ddd-AES recently presented at Eurocrypt 2025. For the first approach, we propose a new mode, CHCTR, that iterates HCTR2 with two independent keys, which achieves 2n/3-bit security in the multi-user (mu) setting and satisfies NIST’s requirements. For the second approach, we prove mu security of HCTR2, which allows us to apply the tweak-based key derivation (TwKD) to HCTR2 in a provable manner. When the number of BC calls processed by a single tweak is upper-bounded by 2^(n/3), HCTR2-TwKD achieves 2n/3-bit mu security. By benchmarking optimized software implementations, we show that CHCTR with AES-256 outperforms HCTR2 with Rijndael-256-256, in all the twelve processor models examined. Similarly, HCTR2-TwKD outperforms bbb-ddd-AES in general cases, and it is even comparable to bbb-ddd-AES rigorously optimized for tweak-repeating use cases using precomputation.

January 22, 2026 at 10:38 PM

SMITTEN.

@our-happy-ending.bsky.social

#STPRP #SlaythePrincessRP

November 13, 2025 at 3:08 AM

𝚆𝙰𝚁

@lady-yoru.bsky.social

“What? Noooooo. No, I wouldn't stab you. I am just a sweet innocent Princess, trapped here for no reason.”

#SkyRP #MVRP #MultiverseRP #STPRP #SlayThePrincessRP

November 9, 2025 at 10:56 PM

II — ᴛʜᴇ ᴡɪᴛᴄʜ.

@righteous-heart.bsky.social

𝘞𝘦 𝘸𝘦𝘳𝘦 𝘢𝘭𝘸𝘢𝘺𝘴 𝘨𝘰𝘪𝘯𝘨 𝘵𝘰 𝘬𝘪𝘭𝘭 𝘦𝘢𝘤𝘩 𝘰𝘵𝘩𝘦𝘳 𝘩𝘦𝘳𝘦, 𝘸𝘦𝘳𝘦𝘯'𝘵 𝘸𝘦? 𝘐 𝘤𝘢𝘯'𝘵 𝘵𝘳𝘶𝘴𝘵 𝘺𝘰𝘶 𝘢𝘯𝘥 𝘺𝘰𝘶 𝘤𝘢𝘯'𝘵 𝘵𝘳𝘶𝘴𝘵 𝘮𝘦 𝘢𝘯𝘥 𝘵𝘩𝘰𝘴𝘦 𝘥𝘰𝘶𝘣𝘵𝘴 𝘴𝘱𝘪𝘯 𝘢𝘯𝘥 𝘴𝘱𝘪𝘯 𝘢𝘯𝘥 𝘴𝘱𝘪𝘯 𝘪𝘯𝘵𝘰 𝘏𝘈𝘛𝘌.

#STPRP #MVRP

a black and white drawing of a house on a hill at night

Alt: pinned. over 21. untrusting wretch. you’ll have to earn her trust due to her scars.

media.tenor.com

October 17, 2025 at 12:30 AM

THE NARRATOR.

@neverdecaying.bsky.social

#STPRP #SlaythePrincessRP

September 1, 2025 at 4:55 PM

THE NARRATOR.

@neverdecaying.bsky.social

who else could it be but princess
tbh i mainly made this account as a joke idk how much i can do with a Voice in your Head
anyways hes an adult man, he/him optionally capitalized because the voices like to do that

#stprp #mvrp

August 28, 2025 at 4:56 AM

The decider.

@thelongquiet.bsky.social

i really don’t know what i’m going to do with this account, it’s a fuckin mess rn so apologies while i figure shit out,,,

#slaytheprincessrp #stprp #mvrp
written by #IMPISHFRENZY

May 16, 2025 at 8:10 AM