Your organization is evaluating an email service. The service must comply with a standard that defines the digital signature generation methods used to protect the integrity of messages and verify and validate their digital signatures. Which of the following is the least ideal technique?
A. The RSA Digital Signature Algorithm.
B. The Digital Signature Algorithm (DSA).
C. ElGamal Digital Signature Algorithm (EGDSA).
D. Elliptic Curve Digital Signature Algorithm (ECDSA).
Kindly be reminded that the suggested answer is for your reference only. It doesn’t matter whether you have the right or wrong answer. What really matters is your reasoning process and justifications.
My suggested answer is C. ElGamal Digital Signature Algorithm (EGDSA).
FIPS 186-4 approves three techniques: DSA, RSA DSA, and ECDSA, as the following screenshot shows:
Reference
A BLUEPRINT FOR YOUR SUCCESS IN CISSP
My new book, The Effective CISSP: Security and Risk Management, helps CISSP aspirants build a solid conceptual security model. It is not only a tutorial for information security but also a study guide for the CISSP exam and an informative reference for security professionals.
- It is available on Amazon.
- Readers from countries or regions not supported by Amazon can get your copy from the author’s web site.
您的組織正在評估電子郵件服務。 該服務必須符合定義數位簽章生成方法的標準，以保護消息完整性及核實(verify)與驗證(validate)數位簽章。 以下哪項是最不理想的技術？
A. The RSA Digital Signature Algorithm.
B. The Digital Signature Algorithm (DSA).
C. ElGamal Digital Signature Algorithm (EGDSA).
D. Elliptic Curve Digital Signature Algorithm (ECDSA).