pub(crate) const ORDER_HEX: &str = "ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551";Expand description
Order of NIST P-256’s elliptic curve group (i.e. scalar modulus) serialized as hexadecimal.
n = FFFFFFFF 00000000 FFFFFFFF FFFFFFFF BCE6FAAD A7179E84 F3B9CAC2 FC632551§Calculating the order
One way to calculate the order is with GP/PARI:
p = (2^224) * (2^32 - 1) + 2^192 + 2^96 - 1
b = 41058363725152142129326129780047268409114441015993725554835256314039467401291
E = ellinit([Mod(-3, p), Mod(b, p)])
default(parisize, 120000000)
n = ellsea(E)
isprime(n)