Digital Signature

A cryptographic mechanism that proves a message was sent by the claimed sender and has not been altered in transit. In AS2, the sender signs messages using their private key, and the receiver verifies using the sender's public key (from their certificate). Common algorithms: SHA-256, SHA-384, SHA-512.

Related Terms

S/MIME (Secure/Multipurpose Internet Mail Extensions)Certificate (X.509)Non-Repudiation