Advanced cryptographic implementations running natively inside the NXP JCOP 4.5 P71 secure element — secret keys never leave the chip.
Implementation Showcase
Production-grade algorithms implemented in JavaCard and/or C — running inside certified hardware with no key exposure.
RedDSA / Pallas (Zcash Orchard) Signatures
Privacy-preserving SpendAuth signatures over the Pallas curve for Zcash’s Orchard shielded protocol — enabling NU5-compliant shielded transactions from a certified secure element.
Used by
Zcash Orchard NU5 — shielded transactions
Curve
Pallas (Pasta curve family)
BLS12-381 Signatures
Full BLS signature scheme over the BLS12-381
pairing-friendly elliptic curve — enabling
threshold signatures, aggregation, and
Ethereum 2.0 validator operations with
hardware-level security.
Key sizes
48-byte public keys · 96-byte signatures
Architecture
Split host/card — 6.4× speedup
Exotic Hash Functions
Non-standard hash algorithms implemented natively on the secure element — enabling zero-knowledge and blockchain-native cryptographic operations without exposing keys.
Used by
Algorithms
Keccak-256
BLAKE2b-512
BLAKE2s-256
Poseidon-Stark252
Poseidon-Mina/Kimchi
Non-Negotiable
Every implementation adheres to the same uncompromising security model — by design, not by configuration.
Secret material is generated and used entirely within the NXP P71 hardware boundary.
Constant-Time Operations
Secret material is generated and used entirely within the NXP P71 hardware boundary.
Mandatory Input Validation
Secret material is generated and used entirely within the NXP P71 hardware boundary.
Phase State Machines
Secret material is generated and used entirely within the NXP P71 hardware boundary.
Common Criteria Certified Hardware
Secret material is generated and used entirely within the NXP P71 hardware boundary.
We’d love to hear from you. Whether you need an existing
implementation or something entirely new — let’s talk.
