Qualified Electronic Signature Devices & High-Throughput Remote Signing

Deploying certified remote signing hardware security modules providing legal equivalence to handwritten signatures, centralized key custody under sole user control, and automated software supply chain code signing.

SignHSM High-Throughput Signing Architecture

Cryptographic Enclave: QSCD Cryptographic Engine — CC EAL4+ / EN 419 241-2 Core

Hardware Security Nodes & Co-Processors

Signature Activation Module (SAM)
Multi-Tenant RSA/ECDSA Engine
RFC 3161 Hardware Timestamp Engine
PAdES / XAdES / CAdES Formatter
Automated Code Signing Vault

Architectural Layers & Silicon Defenses

Layer 1: Certified QSCD Hardware Enclave (FIPS 140-3 L4 / CC EAL4+ AVA_VAN.5): Physically protecting private signing keys against invasive attacks with microsecond tamper zeroization.
Layer 2: Signature Activation & Sole Control (SAM) (EN 419 241-2 Signature Activation Protocol): Cryptographically verifying that the signer has sole control over key activation via dual-factor biometric tokens.
Layer 3: ETSI Baseline Packaging & Timestamping (RFC 3161 / ETSI EN 319 102-1 Validation): Generating PAdES B-LTA and XAdES B-LTA signatures with embedded long-term validation (LTV) cryptographic timestamps.
Layer 4: Enterprise Signing & CI/CD Cloud Gateway (Cloud Signature Consortium (CSC) / PKCS#11): Interfacing signing engines with enterprise ERPs, cloud document platforms, and GitHub/GitLab build pipelines.

Cryptographic Telemetry & Compliance: 120,000/s (RSA-2048 Signing Throughput) | eIDAS Art 25 (Handwritten Signature Parity) | < 8 ms (Remote Signature Latency) | EAL4+ VAN.5 (Common Criteria Certification)

Legally Binding Cryptographic Signatures Under Exclusive User Control

Enterprise digital transformation requires signing hundreds of thousands of transactions, invoices, and software binaries daily without compromising key custody. SignHSM fulfills the stringent demands of eIDAS Article 29 and EN 419 241-2 by executing qualified remote electronic signatures inside tamper-resistant hardware where user authorization is cryptographically verified before every single signature.

Core Engineering Areas

QSCD Server-Side Signing Architecture — Engineering server-side qualified signature creation devices compliant with eIDAS, EN 419 241-1, and EN 419 241-2 standards.
PAdES, XAdES & CAdES Baseline Formats — High-throughput generation of PDF (PAdES), XML (XAdES), and CMS (CAdES) digital signatures with long-term archiving capabilities.
Enterprise CI/CD Code Signing Vault — Securing software build systems, firmware images, and container registries against supply chain tampering through hardware-isolated code signing.

Technical Publications

Related Cluster Architecture Specifications

HSMCrypt — FIPS 140-3 Level 4 Cryptographic Engines, PKCS#11 Architecture & Hardware Root of Trust
AgenticHSM — Autonomous AI Agent Root of Trust, Secure Execution Enclaves & Model Tool Signing
ApiHSM — Cryptographic API Gateways, REST/gRPC PKCS#11 Microservices & Cloud-Native Key Enclaves
AssetHSM — Institutional Digital Asset Hardware Custody, Multi-Party MPC-HSM Hybrid & Cold Storage