SSCP Question #1134: Real Exam Question with Answer & Explanation

Question

This free (for personal use) program is used to encrypt and decrypt emails.

Options

• ASHA-1
• BMD5
• CDES
• DPGP
• E3DES
• FNone of the above

Explanation

Pretty Good Privacy (PGP) is a widely recognized encryption program, available for free personal use, designed to provide cryptographic privacy and authentication for data communication, primarily email.

Common mistakes.

• A. SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function used for verifying data integrity, not for encrypting or decrypting emails.
• B. MD5 (Message-Digest Algorithm 5) is a cryptographic hash function, similar to SHA-1, used for data integrity checks but not for encryption or decryption of data.
• C. DES (Data Encryption Standard) is a symmetric-key encryption algorithm, but it is an algorithm component rather than a complete program used for email encryption like PGP.
• E. 3DES (Triple Data Encryption Standard) is a symmetric-key encryption algorithm, an improvement over DES, but it is an algorithm, not a user-facing program for encrypting emails.
• F. PGP is a well-known program that fits the description, so 'None of the above' is incorrect.

Concept tested. PGP for email encryption

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