# Is any group of bits in a SHA-1 hash more/less unique than another?

Is there any bias in certain parts of the hash? E.g., first n bits are more/less unique than the last/middle n bits? Is there any particular property of any group of bits that makes it more/less unique?

Thanks

• Possible duplicate crypto.stackexchange.com/questions/3153/… – mikeazo Dec 6 '14 at 11:10
• @mikeazo Eh, how do you recon that this is a dupe of that? Are you pointing to the right question? – Maarten Bodewes Dec 6 '14 at 12:04
• @owlstead, okay maybe it would have been better to say related, but the answer to this follows directly from the other. If any set of bits is as secure as any other, then no group of bits is more/less unique. – mikeazo Dec 6 '14 at 12:07
• @mikeazo I guess that kind of remark could be an important part of an answer. But for anybody not directly into attacks on SHA - such as me - it certainly does not answer the question. – Maarten Bodewes Dec 6 '14 at 12:12