Secure Protocols Explanations

Domain Name System Security Extensions (DNSSEC)

focuses on ensuring that DNS information is not modified or malicious. ____ uses digital signatures, allowing systems that query a ____-equipped server to validate that the server’s signature matches the DNS record. _____ can also be used to build a chain of trust for IPSec keys, SSH fingerprints, and similar records

Simple Network Management Protocol, version (SNMPv3)

improves on previous versions of SNMP by providing authentication of message sources, message integrity validation, and confidentiality via encryption. It supports multiple security levels, but only the authPriv level uses encryption. Simply using ___ does not automatically make SNMP information secure

Secure Shell (SSH)

is a protocol used for remote console access to devices and is a secure alternative to telnet. ___ is also often used as a tunneling protocol or to support other uses like SFTP

Hypertext Transfer Protocol over SSL/TLS (HTTPS)

the underlying HTTP protocol relies on TLS to provide security in ____ implementations

Secure Real-Time Protocol (SRTP)

is a secure version of the Real-Time Protocol (RTP), a protocol designed to provide audio and video streams via networks. ____ uses encryption and authentication to attempt to reduce the likelihood of successful attacks, including replay and denial-of-service attempts

Secure Lightweight Directory Access Protocol (LDAPS)

is a TLS-protected version of LDAP that offers confidentiality and integrity protections

Secure/Multipurpose Internet Mail Extensions (S/MIME)

provides the ability to encrypt and sign MIME data, the format used for email attachments. Thus, the content and attachments for an email can be protected, while providing authentication, integrity, nonrepudiation, and confidentiality for messages sent using ___