What is not an example of cryptographic hash that is used to prove that message has not been tampered with.*1 pointSHA-1SHA-2MD5SSL

1. Break Down the Problem

We need to identify which option among the given choices is not a cryptographic hash function designed to prove that a message has not been tampered with.

2. Relevant Concepts

• Cryptographic Hash Functions: These functions take an input and produce a fixed-size string of characters, which appears random. The output should change completely with even a slight change in the input.
• Common Cryptographic Hash Functions:
  • SHA-1: A widely used cryptographic hash function that produces a 160-bit hash value.
  • SHA-2: A family of cryptographic hash functions that include SHA-256 and SHA-512.
  • MD5: An older hash function producing a 128-bit hash value that is no longer considered secure.
• SSL: Secure Sockets Layer, a standard technology for establishing an encrypted link between a server and a client, not a hash function.

3. Analysis and Detail

• SHA-1 and SHA-2 are both cryptographic hash functions known for their ability to confirm data integrity.
• MD5 is a cryptographic hash function, but it's considered outdated and insecure for sensitive data.
• SSL is a protocol for securing data transmission, not a cryptographic hash function.

4. Verify and Summarize

From the analysis, it is clear that while SHA-1, SHA-2, and MD5 are cryptographic hash functions, SSL is not. Therefore, the correct answer is that SSL is not an example of a cryptographic hash used to prove message integrity.

Final Answer

SSL is not an example of a cryptographic hash that is used to prove that a message has not been tampered with.