Software Quality Assurance Approach:
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Incident Response Terms in Cyber Security
Threat: Definition: A potential for harm to information or systems. Example: Malware, hacking attempts, or social engineering attacks. ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Vulnerability: Definition: A weakness in a system or process that could be exploited. Example: Unpatched software, misconfigured settings, or weak passwords. ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Asset: Definition: Any information or resource that needs protection (e.g., data, hardware, software). Example: Customer databases, servers, intellectual property. -----------------------------------------------------------------------------------------------...
Cryptographic mechanism (Symmetric key, asymmetric key)
Digital signatures and digital certificates are closely related concepts in the realm of online security, but they serve distinct purposes: Digital Signature: Purpose: Verifies the authenticity and integrity of digital data (e.g., documents, software, emails). Function: Creates a unique "fingerprint" based on the data and the signer's private key. Anyone with the public key can verify the signature. Benefits: Ensures data originates from the claimed signer. Guarantees data hasn't been altered. Provides non-repudiation (the signer can't deny signing). Applications: E-signatures, software updates, email security, code signing, etc. Digital Certificate: Purpose: Binds a digital identity (e.g., person, organization, website) to a public key used for digital signatures. Function: Issued by a trusted third-party (Certificate Authority) and acts like an electronic passport, containing identity information and public key. Benefits: Establishes trust in the signer...
Digital signatures
Digital signatures are a crucial component of online security, acting as electronic "fingerprints" for verifying the authenticity and integrity of digital data. Here's a deeper dive: What are digital signatures? Imagine signing a physical document with your pen. A digital signature does the same for digital information, like emails, documents, or software, using cryptographic techniques. It creates a unique "fingerprint" based on the data and the signer's private key. Anyone with the public key can verify the signature, ensuring the information: Originated from the claimed signer: Only someone with the private key can create the matching signature. Has not been altered: Any change in the data would invalidate the signature. How do they work? Signing: The signer uses their private key to create a unique signature linked to the data. Verification: The recipient uses the signer's public key, available through a trusted source like a digital certifica...