!!! Overview [{$pagename}] (also seen as: [Secp256r1] prime256v1 [1.2.840.10045.3.1.7]) is a [Elliptic Curve Digital Signature Algorithm] using a 256-[bit] prime field Weierstrass elliptic function [Elliptic Curve]. A randomly generated curve. SEC2v1 states 'E was chosen verifiably at random as specified in [ANSI] X9.62 1 from the seed'. [{$pagename}] is used in [WebAuthN] ([U2F]), and [CBOR] The [Digital Signature Standard] defines [Elliptic Curve] [{$pagename}]: * p = 115792089210356248762697446949407573530086143415290314195533631308867097853951 * n = 115792089210356248762697446949407573529996955224135760342422259061068512044369 * SEED = c49d3608 86e70493 6a6678e1 139d26b7 819f7e90 * c = 7efba166 2985be94 03cb055c 75d4f7e0 ce8d84a9 c5114abc af317768 0104fa0d * b = 5ac635d8 aa3a93e7 b3ebbd55 769886bc 651d06b0 cc53b0f6 3bce3c3e 27d2604b * G x = 6b17d1f2 e12c4247 f8bce6e5 63a440f2 77037d81 2deb33a0 f4a13945 d898c296 * G y = 4fe342e2 fe1a7f9b 8ee7eb4a 7c0f9e16 2bce3357 6b315ece cbb64068 37bf51f5 !! More Information There might be more information for this subject on one of the following: [{ReferringPagesPlugin before='*' after='\n' }] ---- * [#1] - [A tale of two elliptic curves|https://www.johndcook.com/blog/2018/08/21/a-tale-of-two-elliptic-curves/|target='_blank'] - based on information obtained 2020-11-27