Electronic record authentication through digital signatures relies on asymmetric cryptography, hash functions, and verification using a subscriber's public key.

Authentication of electronic records may be undertaken by a subscriber by affixing a digital signature through an asymmetric cryptographic system and hash function. The hash function produces a consistent hash result for the same electronic record and must make reconstruction of the original record or generation of identical results for different records computationally infeasible. Verification may be performed using the subscriber's public key, which, together with the unique private key, forms a functioning key pair.

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