learningbitcoin
Registered Member
- Oct 12, 2024
- 99
- 14
Hey folks on BlackHatWorld I need your wisdom!
I'm diving into cryptography and security concepts, but some things are going over my head. I’d love it if you could break these down in **simple, everyday language**—the kind even non-techies could understand.
Here’s what I’m struggling with:
---
**Digital Signature and Hashing**
️ **31-1 Security Services in Cryptography:**
- **Message Confidentiality**: Keeping secrets
- **Message Integrity**: Making sure things aren’t changed
- **Message Authentication**: Knowing it’s from the real sender
- **Message Non-repudiation**: No “I didn’t send that!” excuses
---
**31-3 Message Integrity:**
Encryption keeps secrets, but **integrity** means we make sure that nothing was changed, even if secrecy isn’t a concern. Examples like:
- **Document and Fingerprint analogy** ️
- **Message Digest**: What’s the deal with that?
- **How we create and verify a digest**
- **Hashing functions** and what makes a good one
---
**Also, Hash Algorithms—like SHA-1**: What do they really do? Why do we care about them? And should I even bother learning SHA-1 or is it outdated?
---
If anyone can walk me through this in **layman’s terms**, I'd really appreciate it! The simpler, the better. Maybe use metaphors or real-life examples?
Looking forward to your brilliant responses! Thanks in advance!
I'm diving into cryptography and security concepts, but some things are going over my head. I’d love it if you could break these down in **simple, everyday language**—the kind even non-techies could understand.
Here’s what I’m struggling with:
---
**Digital Signature and Hashing**
️ **31-1 Security Services in Cryptography:**
- **Message Confidentiality**: Keeping secrets
- **Message Integrity**: Making sure things aren’t changed
- **Message Authentication**: Knowing it’s from the real sender
- **Message Non-repudiation**: No “I didn’t send that!” excuses
---
**31-3 Message Integrity:**
Encryption keeps secrets, but **integrity** means we make sure that nothing was changed, even if secrecy isn’t a concern. Examples like:
- **Document and Fingerprint analogy** ️
- **Message Digest**: What’s the deal with that?
- **How we create and verify a digest**
- **Hashing functions** and what makes a good one
---
**Also, Hash Algorithms—like SHA-1**: What do they really do? Why do we care about them? And should I even bother learning SHA-1 or is it outdated?---
If anyone can walk me through this in **layman’s terms**, I'd really appreciate it! The simpler, the better. Maybe use metaphors or real-life examples?
Looking forward to your brilliant responses! Thanks in advance!