Tcl

Load EC Public Key from X,Y Values (easier)

See more ECC Examples

Demonstrates how to load an ECDSA public key from X and Y values using the LoadEcdsa method introduced in Chilkat v9.5.0.85. Tcl

load ./chilkat.dll

set success 0

# Note: This example requires Chilkat v9.5.0.85 or greater.

# We have the following x and y values in hex (for an EC point on the P-256 curve).
set x "1ccbe91c075fc7f4f033bfa248db8fccd3565de94bbfb12f3c59ff46c271bf83"
set y "ce4014c68811f9a21a1fdb2c0e6113e06db7ca93b7404e78dc7ccd5ca89a4ca9"

set pubkey [new_CkPublicKey]

set success [CkPublicKey_LoadEcdsa $pubkey "secp256r1" $x $y]
if {$success == 0} then {
    puts [CkPublicKey_lastErrorText $pubkey]
    delete_CkPublicKey $pubkey
    exit
}

puts "Success."

delete_CkPublicKey $pubkey