Welcome to the home page of the 1st Workshop on Symmetric Primitives over prime fields and integer RINGs. This workshop will be held on one day at Sapienza University of Rome, Rome, Italy, the 10th of May 2026. The workshop will be held just before EUROCRYPT 2026.

SPRING is held to promote the design and the cryptanalysis of symmetric-key primitives over prime fields and integer rings. Broadly, the scope of the workshop includes, but is not limited to:

• Design of symmetric-key primitives over prime fields and integer rings for applications such as Multi-Party Computation (MPC), Homomorphic Encryption (HE), Zero-Knowledge (ZK), and Format-Preserving Encryption (FPE);
• New or improved cryptanalysis techniques;
• Implementation of symmetric-key primitives over prime fields and integer rings.

• Lorenzo Grassi (Technology University of Einhoven, the Netherlands + Ponos Technology, Switzerland)
• Marco Pedicini (University Roma Tre, Italy)

TO BE ANNOUNCED!

TO BE ANNOUNCED!

This workshop receives funding from