Summary
• Cryptography turns our data into an unreadable format (protecting it’s integrity).
- Encoding simply turns our data into another format – but doesn’t encrypt it.
- Synchronous encryption uses the same key to encrypt and decrypt. It is also faster but less secure.
- Asynchronous encryption uses a public and private key to encrypt and decrypt. It is slower but more
secure.
• Message digests take samples of messages to ensure the message hasn’t been tampered with.
• Digital Signatures encrypt message digests.
• Digital Certificates authenticate parties that are distributing their public key.
• Certificate Authorities vouches that a Digital Certificate is actually from the person it says it is from.
• Authentication needs identity and proof of identity.
• Authorization restricts or allows access to resources.
• Cryptography turns our data into an unreadable format (protecting it’s integrity).
- Encoding simply turns our data into another format – but doesn’t encrypt it.
- Synchronous encryption uses the same key to encrypt and decrypt. It is also faster but less secure.
- Asynchronous encryption uses a public and private key to encrypt and decrypt. It is slower but more
secure.
• Message digests take samples of messages to ensure the message hasn’t been tampered with.
• Digital Signatures encrypt message digests.
• Digital Certificates authenticate parties that are distributing their public key.
• Certificate Authorities vouches that a Digital Certificate is actually from the person it says it is from.
• Authentication needs identity and proof of identity.
• Authorization restricts or allows access to resources.
Summary
Table of Contents
Copyright (c) 2008. Intertech, Inc. All Rights Reserved. This information is to be used exclusively as an
online learning aid. Any attempts to copy, reproduce, or use for training is strictly prohibited.
online learning aid. Any attempts to copy, reproduce, or use for training is strictly prohibited.
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