collision resistance造句

例句与造句

1. Collision resistance implies second-preimage resistance, but does not guarantee preimage resistance.
2. Collision resistance doesn't mean that no collisions exist; simply that they are hard to find.
3. For example, SHA-256 offers 128-bit collision resistance and 256-bit preimage resistance.
4. A key aspect of cryptographic hash functions is their collision resistance : nobody should be able to find two different input values that result in the same hash output.
5. These properties form a hierarchy, in that collision resistance implies second pre-image resistance, which in turns implies pre-image resistance, while the converse is not true in general.
6. It's difficult to find collision resistance in a sentence. 用collision resistance造句挺难的
7. Cryptographic hash functions with output size of " n " bits usually have a collision resistance security level " n " / 2 and preimage resistance level " n ".
8. Mark I vehicles have good riding qualities, and are not intrinsically lacking in collision resistance . " British Rail was still using multiple units with underframes that had been constructed before World War II and these had priority for replacement.
9. These can be compared with a collision resistance, in which it is computationally infeasible to find any two distinct inputs " x ", " x " 2 that hash to the same output, i . e ., such that.
10. Mark I vehicles have good riding qualities, and are not intrinsically lacking in collision resistance . " British Rail was still using some 4EPB and 2EPB ( classes 415 and 416 ) multiple units with underframes that had been constructed before World War II and these had priority for replacement.
11. Nonetheless, it is often suggested that it may be practical to break within years, and that new applications can avoid these problems by using later members of the SHA family, such as SHA-2, or using techniques such as randomized hashing that do not require collision resistance.
12. Although ( as of 2015 ) no example of a SHA-1 collision has been published yet, the security margin left by SHA-1 is weaker than intended, and its use is therefore no longer recommended for applications that depend on collision resistance, such as digital signatures.
13. Not all uses of cryptographic hash functions require random oracles : schemes that require only one or more properties having a definition in the standard model ( such as collision resistance, preimage resistance, second preimage resistance, etc . ) can often be proven secure in the standard model ( e . g ., the Cramer Shoup cryptosystem ).
14. The " birthday paradox " places an upper bound on collision resistance : if a hash function produces " N " bits of output, an attacker who computes only 2 " N " / 2 ( or \ scriptstyle \ sqrt { 2 ^ N } ) hash operations on random input is likely to find two matching outputs.
15. SHA-1 is being retired for most government uses; the U . S . National Institute of Standards and Technology says, " Federal agencies " "'should " "'stop using SHA-1 for . . . applications that require collision resistance as soon as practical, and must use the SHA-2 family of hash functions for these applications after 2010 " ( emphasis in original ).
16. SHA-1 is being retired from most government uses; the U . S . National Institute of Standards and Technology said, " Federal agencies " "'should " "'stop using SHA-1 for . . . applications that require collision resistance as soon as practical, and must use the SHA-2 family of hash functions for these applications after 2010 " ( emphasis in original ), though that was later relaxed.