🔍 Upload P7M File
⚠️ Notice
Some tools, functions, or services described – including, by way of example, test environments, hybrid certificates, and interoperability procedures – are experimental in nature and do not guarantee compliance with specific regulations. Functionality, performance, and results may vary based on customer configurations.
⚠️ Privacy Notice
This is a demo tool, therefore it saves your files only for the time necessary to verify the signature and does not permanently store your documents. It should not be used to verify documents containing confidential or critical information.
Upload a CAdES-signed file (.p7m) to verify the digital signature
Drag and drop your .p7m file here or click to select
📚 About PQC Signature Verification
ML-DSA Algorithm
Module-Lattice-Based Digital Signature Algorithm standardized by NIST (FIPS 204). Provides Level 3 security equivalent to AES-192.
- Public key: ~1,952 bytes
- Signature: ~3,309 bytes
- Security: NIST Level 3
CAdES Format
CMS Advanced Electronic Signatures (CAdES) is a standard for advanced electronic signatures. The signature includes the complete certificate chain.
- Standard: ETSI EN 319 122-1
- Format: PKCS#7 (.p7m)
- Includes: Full cert chain
Verification Process
This tool verifies the digital signature, CAdES signed attributes, and certificate chain. It does not verify revocation (CRL/OCSP) or trust anchors.
- Verify digital signature
- Verify CAdES attributes
- Verify certificate chain