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Clarify? Collision attacks by definition do not feature an existing digest as input so they are not useful for breaking into a system secured with a digest.
by gxti 16y ago
Clarify? Collision attacks by definition do not feature an existing digest as input so they are not useful for breaking into a system secured with a digest.
- Xk 16y agoI guess he could mean that you could find a plaintext that had the same hash value through use of a collision ... but that's just finding a preimage.
- StavrosK 16y agoAh, I misunderstood. By "collision attack" you meant "find two plaintexts that hash to the same digest", I interpreted it as "find one plaintext that hashes to a specific digest", and "preimage attack" as "find the plaintext that was hashed to this digest". Please disregard my comment above.