Jamie wants to send a confidential file to her friend Alice. For this purpose, they installed an application for securely sharing the file. The application employs an encryption algorithm that uses the same shared secret key for encryption and decryption of data. Identify the type of cryptography employed by the application used by Alice and Jamie for file sharing.
Answer(s): A
James was recruited as security personnel in an organization and was instructed to secure the organization's infrastructure from physical threats. To achieve this, James installed CCTV systems near gates, reception, hallways, and workplaces to capture illicit activities inside the premises, identify activities that need attention, collect images as evidence, and aid in an alarm system. Identify the type of physical security control implemented by James in the above scenario.
Below are various authentication techniques.1.Retina scanner2.One-time password3.DNA4.Voice recognitionIdentify the techniques that fall under biometric authentication.
Biometric authentication is a type of authentication that uses the physical or behavioral characteristics of a person to verify their identity. Biometric authentication is more secure and convenient than other methods such as passwords or tokens, as biometric traits are unique, hard to forge, and easy to use. Some examples of biometric authentication techniques are retina scanner, DNA, and voice recognition. Retina scanner uses a low-intensity light beam to scan the pattern of blood vessels at the back of the eye, which is unique for each individual. DNA uses the genetic code of a person to match their identity, which is the most accurate and reliable biometric technique. Voice recognition uses the sound and pitch of a person's voice to verify their identity, which is influenced by factors such as anatomy, physiology, and psychology. These techniques fall under biometric authentication, as they use the physical or behavioral traits of a person to authenticate them.
Biometric Authentication - Week 2: Identification, Authentication, and Authorization Biometric Authentication: What You Need To KnowBiometric Authentication Techniques
Kelly, a cloud administrator at TechSol Inc., was instructed to select a cloud deployment model to secure the corporate data and retain full control over the data. Which of the following cloud deployment models helps Kelly in the above scenario?
Answer(s): D
A private cloud is a cloud deployment model that is exclusively used by a single organization and is hosted either on-premises or off-premises by a third-party provider. A private cloud offers the highest level of security and control over the data and resources, as the organization can customize the cloud infrastructure and services according to its needs and policies. A private cloud also ensures better performance and availability, as the organization does not share the cloud resources with other users. A private cloud is suitable for organizations that have sensitive or confidential data, strict compliance requirements, or high demand for scalability and flexibility. A private cloud can help Kelly secure the corporate data and retain full control over the data in the above scenario.
Private Cloud - Week 6: Virtualization and Cloud Computing Private Cloud vs Public Cloud vs Hybrid CloudPrivate Cloud Security: Challenges and Best Practices
Steve was sharing his confidential file with John via an email that was digitally signed and encrypted. The digital signature was made using the "Diffie-Hellman (X9.42) with DSS" algorithm, and the email was encrypted using triple DES.Which of the following protocols employs the above features to encrypt an email message?
S/MIME (Secure/Multipurpose Internet Mail Extensions) is a protocol that provides security services for email messages, such as encryption, digital signature, authentication, and integrity. S/MIME is based on the MIME standard, which defines the format and structure of email messages. S/MIME uses public-key cryptography to encrypt and decrypt the message content and to sign and verify the message sender. S/MIME supports various algorithms for encryption and digital signature, such as Diffie-Hellman, DSS, RSA, and triple DES. S/MIME is widely used for secure email communication in various applications and platforms, such as Outlook, Gmail, and Thunderbird. S/MIME is the protocol that employs the features mentioned in the question, namely Diffie-Hellman (X9.42) with DSS for digital signature and triple DES for encryption.
S/MIME - Week 7: Email SecurityS/MIME - WikipediaS/MIME Version 3.2 Message Specification
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