The Official (ISC)2 CCSP CBK Reference. Leslie FifeЧитать онлайн книгу.
trails that are unique to each environment, consistent with requirement 10.
Provide processes to support forensic investigations.
In addition to these requirements, the general auditability of the cloud environment would be beneficial in assuring compliance with PCI DSS 3.2.1.
System/Subsystem Product Certifications
The following are system/subsystem product certifications.
Common Criteria
Common Criteria (CC) is an international set of guidelines and specifications to evaluate information security products. There are two parts to CC:
Protection profile: Defines a standard set of security requirements for a specific product type, such as a network firewall. This creates a consistent set of standards for comparing like products.
Evaluation assurance level: Scored from level 1 to 7, with 7 being the highest. This measures the amount of testing conducted on a product. It should be noted that a level 7 product is not automatically more secure than a level 5 product. It has simply undergone more testing. The customer must still decide what level of testing is sufficient. One reason to not subject every product to level 7 is the cost involved.
The testing is performed by an independent lab from an approved list. Successful completion of this certification allows sale of the product to government agencies and may improve competitiveness outside the government market as CC becomes better known. The goal is for products to improve through testing. It also allows a customer to consider two versions of a security product.
FIPS 140-2
CC does not include a cryptographic implementation standard or test. CC is an international standard, and cryptographic standards are country specific. CC leaves cryptography to each country and organization.
For the U.S. federal government, the cryptographic standard is FIPS 140-2. Organizations wanting to do business with the U.S. government must meet the FIPS criteria. Organizations in regulated industries and nonfederal government organizations are increasingly looking to FIPS certification as their standard. As FIPS use increases, additional industries are expected to use FIPS as their cryptographic standard.
Cybersecurity companies are increasingly seeking FIPS certification to increase their market potential and maximize the value of their services.
FIPS requires that encryption (both symmetric and asymmetric), hashing, and message authentication use algorithms from an approved list. This list is in FIPS 140-2. For example, message authentication can use Triple-DES, AES, or HMAC. There are more algorithms out there than are allowed in FIPS.
Being considered FIPS-validated requires testing by one of a few specified labs through four levels of testing. Sometimes a product is referred to as FIPS-compliant, which is a much lower bar, indicating some components of the product have been tested, but perhaps not the entire product. It is important to read the fine print. Validated and compliant are not the same thing. A CCSP should also become familiar with the new FIPS 140-3, which will be replacing FIPS 140-2 over the next several years.
Summary
In order to discuss the cloud, each individual must be familiar with the terminology surrounding this technology. This understanding includes characteristics of cloud computing, as well as the service models and deployment models of cloud computing. It also includes the role of the CSP in cloud computing and the shared security model that exists between the CSP and the customer. Finally, the technologies that make cloud computing possible are discussed in this chapter alongside the emerging technologies that will support and transform cloud computing in the future. Understanding this chapter will make it easier to access the discussion in each of the following domains.
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