Exam 22: Internet Security Protocols and Standards

The default algorithms used for signing S/MIME messages are SHA-1 and the _________.

IPsec provides two main functions: a combined authentication/encryption function called ___________ and a key exchange function.

The most complex part of TLS is the __________.

Recipients without S/MIME capability can view the message content,although they cannot verify the signature.

DKIM is designed to provide an e-mail authentication technique thatis transparent to the end user.

A _________ is formed by taking the message digest of the content to be signed and then encrypting that with the private key of the signer.

The IAB included authentication and encryption as necessary securityfeatures in IPv6.

Search engines support HTTPS.

DKIM has been widely adopted by a range of e-mail providers andmany Internet service providers.

The ________ is housed in the user's computer and is referred to as a client e-mail program or a local network e-mail server.

Most browsers come equipped with SSL and most Web servers haveimplemented the protocol.

The ________ function consists of encrypted content of any type and encrypted-content encryption keys for one or more recipients.

A benefit of IPsec is __________.

The recipient of a message can decrypt the signature using DSS and thesender's public DSS key.

________ is a security enhancement to the MIME Internet e-mail format standard, based on technology from RSA Data Security.

In S/MIME each conventional key is used a total of three times.

_________ is a specification for cryptographically signing e-mail messages, permitting a signing domain to claim responsibility for a message in the mail stream.

The ________ accepts the message submitted by a message user agent and enforces the policies of the hosting domain and the requirements of Internet standards.

The ______ is responsible for transferring the message from the MHS to the MS.

To protect the data, either the signature alone or the signature plus the message are mapped into printable ASCII characters using a scheme known as ________ or base64mapping.