Assume d is a 128 bit random integer and P is base point of an elliptic curve and Q = dP is a point on the elliptic curve and SHA is a hash function with 128 bit output, my question is:
Is size Q equal to size SHA(Q)?
If not, then wich is smaller size?
- Anybody can ask a question
- Anybody can answer
- The best answers are voted up and rise to the top
closed as unclear what you're asking by minar, e-sushi, rath, D.W., Paŭlo Ebermann Aug 25 '13 at 12:16
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question.If this question can be reworded to fit the rules in the help center, please edit the question.
This was answered in the Comments of the math.stackex:
Meaning no, they're not equal SHA-1 is larger.