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Jun
19
answered Property of a cryptographic function
Jun
14
revised Is every encryption a bijective function?
emphasize that "same inputs" implies something is broken
Jun
14
answered Is every encryption a bijective function?
Jun
12
comment RSA: is it easy to find the public key from the secret key?
Even if you don't know p or q, if you have the private key (n,d), the public key (n, e) is usually (n, 65537). Even when e is not 65537, e is almost always a small number (compared to d), so it almost always takes a short amount of time to find e by brute force testing all possible values.
Jun
12
comment RSA: is it easy to find the public key from the secret key?
+1 Yes, exactly. Typically the primes p and q are stored in the secret private key file. The public key (n,e) is trivial to calculate from that: n = pq, and e is usually fixed at 65537.
Apr
11
awarded  Necromancer
Apr
6
comment What constants do I need to create this specific logarithmic spiral?
Sounds fascinating. Please post a link to the first visualization you post online, even if the first version doesn't look pretty to you.
Feb
23
answered Possible to imitate a sphere with 1000 congruent polygons?
Feb
22
answered Which tessellation of the sphere yields a constant density of vertices?
Sep
27
answered Why are some mathematical constants irrational by their continued fraction while others aren't?
Sep
27
comment Distributions of point charges
@Rahul : Thank you. fixed.
Sep
27
revised Distributions of point charges
linkfix
Sep
24
answered Distributions of point charges
Sep
18
comment Find the Volume Enclosed by Terrain and a Certain Sea Level
Yes, if this is actual survey data, then chopping it up into many tall, thin "straws" or "french fries" (triangular prisms or rectangular boxes or hexagonal prisms) -- either one for each point, or one for each triangle -- is going to be the best you can do.
Sep
13
comment How do I map a spherical triangle to a plane triangle?
The Collignon projection and the Peirce quincuncial projection each map a few arcs of great circles to line segments. However, they are not gnomonic projections.
Sep
13
awarded  Editor
Sep
13
revised How do I map a spherical triangle to a plane triangle?
clarify that gnomonic projection is not the only answer.
Sep
12
awarded  Student
Sep
12
asked How do I map a spherical triangle to a plane triangle?
Sep
8
awarded  Supporter