Anvil uses digital certificates, specifically the Public Key Infrastructure (PKI) standard, for identity verification in document signing. This involves creating a pair of certificates – public and private.
When a document is signed on Anvil, data is encrypted using the 2048 RSA with a private key stored in a secure Hardware Security Module (HSM), inaccessible to everyone, including Anvil developers. Only the application can access the private key, preventing unauthorized use and ensuring the integrity of Anvil signatures.
Verification of Anvil signatures is possible by opening signed documents in a PDF viewer that supports signature verification. If you want to learn more about digital signatures, read our blog post on how they work.
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