Re:How I created two images with the same MD5 hash
by tptacek on Tuesday November 04, 2014 @10:42AM
(#8557055)
There is no indication that SHA-2 is threatened in any practical way.
SHA-1 and SHA-2 are similar at an architectural level, in some of the same ways that two mid-1990s Feistel ciphers might be similar, and share building blocks, but they aren't the same hash function. They are much more different than, say, DES and 3DES.
SHA-2 remains the best practical choice for most systems today. The truncated variants (like SHA2-512/256) even break length extension exploits.
SHA-1 and SHA-2 are similar at an architectural level, in some of the same ways that two mid-1990s Feistel ciphers might be similar, and share building blocks, but they aren't the same hash function. They are much more different than, say, DES and 3DES.
SHA-2 remains the best practical choice for most systems today. The truncated variants (like SHA2-512/256) even break length extension exploits.