BIP 151 use of HMAC_SHA512



Summary:

The writer is unsure of the purpose of a thread, but it appears to be similar to the reinvention of HKDF. They suggest reading a paper on HKDF which justifies its design decisions, as it stands out among crypto papers. The use of a standard algorithm is recommended to reduce risk of errors. Although there may be a slight cost in using a standard algorithm, it is deemed a cheap price to pay.


Updated on: 2023-06-11T18:53:10.661517+00:00