5.3.2.1 Cryptographic Negotiation Failures
The Encryption Method selected by the server (section 5.3.2) is based on the Encryption Methods supported by the client (section 2.2.1.3.3), the Encryption Methods supported by the server and the configured Encryption Level (section 5.3.1) of the server.
The negotiation of the cryptographic parameters for a connection fails if the server is not able to select an Encryption Method to send to the client (section 2.2.1.4.3).
Low and Client Compatible: Cryptographic configuration fails if the server does not support the highest Encryption Method advertised by the client (for example, the server supports 40-bit and 56-bit encryption while the client only supports 40-bit, 56-bit and 128-bit encryption).
High: Cryptographic configuration fails if the client does not support the highest Encryption Method supported by the server (for example, the server supports 40-bit, 56-bit and 128-bit encryption while the client only supports 40-bit and 56-bit encryption).
FIPS: Cryptographic configuration fails if the client does not support FIPS 140-1 validated encryption methods.
If the server is not able to select an Encryption Method to send to the client, then the network connection is closed.