Cryptographic Algorithms and Their Categories
- RSA (Rivest-Shamir-Adleman)
- ECC (Elliptic Curve Cryptography)
- Diffie-Hellman (DH)
- ElGamal
These algorithms can be categorized into two primary mathematical principles:
- Discrete Logarithms: A principle used in algorithms such as ECC, Diffie-Hellman, and ElGamal.
- Prime Factorization: A principle used in the RSA algorithm.
- RSA is widely used for secure data transmission, digital signatures, and key exchange in protocols such as SSL/TLS.
- Example: Digital certificates use RSA to encrypt the certificate's data and authenticate the identity of the certificate holder.
- ECC provides equivalent security to RSA with much smaller key sizes, leading to faster computations and lower power consumption.
- Example: Used in mobile devices and IoT for secure communications due to its efficiency.
- Used for establishing a shared secret in protocols such as SSL/TLS, IPSec, and SSH.
- Example: Enables secure key exchange between two parties without prior shared secrets.
Importance in CISSP Domains:
- Security and Risk Management: Understanding cryptographic algorithms helps in assessing the security of systems and managing cryptographic keys securely.
- Asset Security: Cryptography is essential for protecting sensitive data at rest and in transit.
- Security Engineering: Knowledge of cryptographic principles and algorithms is crucial for designing secure systems.
- Communication and Network Security: Ensures secure communication channels using encryption and key exchange protocols.
- SSL/TLS: Uses RSA, ECC, and Diffie-Hellman for secure web communications.
- Digital Signatures: Ensure data integrity and authentication using RSA and ECC.
- VPNs: Secure connections using Diffie-Hellman and RSA for key exchange and encryption.
To Assess knowledge, my Coffee shots were mapped to CISSP Topic
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6 个月Waqas Mansoor - one of the best trainer of CISSP (Prabh Nair)
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7 个月Prabh Tussi great ho... thanks for helping all the aspirants......All The Best ??????
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7 个月As always, a very helpful quick note. Thank you Prabh Nair!!
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7 个月very crisp and to the point
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7 个月Thank you Prabh Nair Sir for sharing these valuable notes on asymmetric cryptography! It's crucial to highlight that asymmetric encryption not only enhances data security but also plays a pivotal role in establishing digital signatures and certificates, which are fundamental for verifying identities and ensuring data integrity in transactions. Understanding these concepts deeply can significantly elevate one's proficiency in cybersecurity roles.