Reply to post: Not encryption but hashing

Dealing with legacy issues around Red Hat crypto versions? Here's a fix

b0llchit Silver badge

Not encryption but hashing

...the pesky old SHA-1 encryption algorithm...

The SHA-1 algorithm has no encryption properties whatsoever. It cannot encrypt or decrypt anything at all.

The SHA-1 algorithm is a hashing algorithm used to identify a message or block of data in a unique way but using only a small string of numbers, or hash value.

However, as noted, the old algorithm cannot uniquely identify messages or data because collisions have been found (same hash value for different input). You can no longer use the hash value for identification/integrity purposes once collisions are known to happen and the algorithm must be retired.

POST COMMENT House rules

Not a member of The Register? Create a new account here.

  • Enter your comment

  • Add an icon

Anonymous cowards cannot choose their icon