JavaScript ECDH Key Exchange Demo

Alice	Bob
[Step 1] Alice's private value (a): [Step 3] Alice's public point (A = aG) (X,Y): [Step 5] Alice's secret key (S = aB = abG) (X,Y):	[Step 2] Bob's private value (b): [Step 4] Bob's public point (B = bG) (X,Y): [Step 6] Bob's secret key (S = bA = baG) (X,Y):

Alice

Bob

[Step 1] Alice's private value (a):

[Step 3] Alice's public point (A = aG) (X,Y):

[Step 5] Alice's secret key (S = aB = abG) (X,Y):

[Step 2] Bob's private value (b):

[Step 4] Bob's public point (B = bG) (X,Y):

[Step 6] Bob's secret key (S = bA = baG) (X,Y):

Status:

Elliptic Curve parameters

Curve Q:

Curve A:

Curve B:

G (X,Y):

Performance data moved to the speed tables
Implementation based on BouncyCastle's Java EC code
Point compression not supported
Only curves over F(p) supported, no F(2^m) support yet
Additional performance optimizations (e.g. windowed multiplier) not yet exploited
More error checking needed
Need a switch to display hex values in demo