PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • First thing after establishing the TCP connection, both systems agree on a session key, using such protocols as DH key exchange, ECDH or GSSAPI. This key is symmetric and temporary ??? both sides use the same key to encrypt and decrypt data using such algorithms as AES or RC4.
http://www.w3.org/ns/prov#wasQuotedFrom
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