[BUG] The standard secp256k1 is not a NIST standard

[aryzing]

The book states the NIST established secp256k1,

bitcoinbook/ch04.asciidoc

Line 128 in 97df56f

Bitcoin uses a specific elliptic curve and set of mathematical constants, as defined in a standard called +secp256k1+, established by the National Institute of Standards and Technology (NIST). The +secp256k1+ curve is defined by the following function, which produces an elliptic curve:

However, that is not the case. It was established by SEC, and doesn't have a NIST equivalent.

See,

• https://crypto.stackexchange.com/questions/106461/what-is-the-relationship-between-nist-and-secp256k1#106462
• https://www.ietf.org/rfc/rfc8422.html#appendix-A
• https://secg.org/