What is collision in hashing?

Related questions

1. Why is md5 insecure?
2. Is md5 hash secure?
3. Is md5 a good choice for hash algorithm?
4. Which is more secure md5 or SHA?
5. Is SHA 1 secure?
6. Why is Sha better than md5?
7. How is hashing done?
8. Can you hash a hash?
9. Is md5 hash reversible?
10. What are the properties of good hash function?

Tags

1. #distinct
2. #situation
3. #clash
4. #collision
5. #application
6. #pieces
7. #digest
8. #science
9. #impact
10. #computer
11. #depends
12. #cryptographic
13. #collisions
14. #occurs
15. #value
16. #checksum
17. #fingerprint