HP 250m Print Server - Fast Ethernet, 250m Print Server for Fast Ethernet manual Keying Material

Page 24

	Client
	Client
	Random #	Cryptographic
		Cryptographic
		Key Generation:
		PreMasterSecret
	Server
	Random #
	Server	Encryption
	Public Key	Encryption
	Public Key
		E(PreMasterSecret)

Figure 26 - Keying Material

The client generates what is called a “pre_master_secret” using the random numbers as well as a function called the key derivation function. This is encrypted with the server’s public key. Only a server with knowledge of the private key would be able to decrypt it. The ability to decrypt the pre_master_secret proves that the server is in possession of the private key – the final proof for the server’s identity.

24

Image 24

Contents Whitepaper IntroductionWhat is SSL/TLS? Http ApplicationHttps Decoded Application ChangesHttp Session More Info Https Session Lock Icon Certificate Details Digital Certificates IE6 Security AlertIE7 Certificate Error IE7 Certificate Error Public Key Infrastructure and Public Key Certificate Basics Certificate InformationSymmetric Cryptography Asymmetric Cryptography Digital Signature Digital Signature Verification Certificate Authority Public Key Certificates Self-Signed Certificate SSL/TLS Protocol Basics SSL/TLS Protocol StructuresClient Hello Server Hello Server Certificate Verification Keying Material Client Finished Using Https with HP Jetdirect Server FinishedCA Heirarchy Network Diagram Page Page Under the heading Jetdirect Certificate, press Configure… Page Page Page Page Page Page Page Page Page Page Page Save it Go to Tools and click Internet Options Click Certificates Click Import… Click Next Select the file Click Next Page Page Page Page Page Detailed Look at the SSL/TLS Connection Page Page Page Page Check for server certificate revocation is not selected Page Page SSL/TLS Server Settings HP Jetdirect as an SSL/TLS Client Page Page Page Page Select R2 and hit Export… Click Next Select DER. Click Next Save it Save it Click Finish Page Select the file. Click Finish Click OK Page Same message. What did we do wrong? Page Page We use the DNS name and try again Success Page SSL/TLS Client Understanding Certificate Chains CA HierarchyPage RootCA Incorrect HP Jetdirect CA Configuration Correct HP Jetdirect CA Configuration Walking the Chain SSL/TLS Client Certificates and Name Verification Subject SubjectAltName Page Page Page IPP over SSL/TLS Click Next Select a network printer… Page Page Print a test Yep we have our print data protected by SSL/TLS HP Jetdirect Certificate Guidelines Embedded Devices and Digital CertificatesWhich HP Jetdirect Products Support SSL/TLS? Summary