From encryption to a cryptographically chained audit trail, every layer of BizSign is designed so the integrity of your agreements stands up to scrutiny.
All traffic is protected with TLS 1.2+ in transit. Documents and audit data are encrypted with AES-256 at rest. Keys are managed by our infrastructure providers and rotated regularly.
Every signing event is sealed into an HMAC-SHA-256 chained ledger. Each entry is cryptographically linked to the one before it, so any modification, insertion, or deletion is immediately detectable.
Completed documents are sealed with PKCS#7 / PAdES digital signatures and a certificate of completion, so authenticity and integrity can be verified by any standards-compliant PDF reader.
Scoped API keys, per-recipient single-use access tokens, and role-based access control (owner, admin, member) ensure that only the right people and systems can act on a document.
Documents are stored in dedicated, access-controlled cloud storage. Enterprise customers can discuss regional data residency and isolation requirements as part of a custom agreement.
Built on resilient, horizontally-scaled infrastructure with managed backups and monitoring, targeting high availability for document delivery and signing.
Don't take our word for it. Anyone can independently confirm a signed document's integrity and audit trail — no account required.