Exam SY0-701 topic 1 question 343 discussion

3DES (Triple DES) stands for Triple Data Encryption Standard It's an encryption algorithm that: Takes the original DES (Data Encryption Standard) algorithm Applies it three times to each data block Uses three different keys in sequence: Encrypt with Key 1 Decrypt with Key 2 Encrypt with Key 3 Key characteristics: Block size: 64 bits Key size: 168 bits (three 56-bit keys) More secure than single DES Slower than newer algorithms like AES Still used in some legacy systems While 3DES is more secure than single DES, it's generally considered obsolete for new applications, with AES (Advanced Encryption Standard) being the preferred modern encryption standard. 3DES (Triple DES) is actually an encryption algorithm, not a hashing algorithm.

A systems administrator would leverage a 3DES hash from an installer file posted on a vendor's website primarily to verify the integrity of the file.

A 3DES hash (or more accurately, a cryptographic hash such as MD5, SHA-1, or SHA-256) provided by the vendor is used to verify that the downloaded file has not been altered or corrupted during the download process. Integrity: The hash ensures the file's content is intact. When you calculate the hash of the downloaded file and compare it to the one provided by the vendor, matching values indicate the file has not been tampered with or corrupted