From: Chris von Recklinghausen > Sent: 08 April 2021 11:46 > > Suspend fails on a system in fips mode because md5 is used for the e820 > integrity check and is not available. Use crc32 instead. > > Prior to this patch, MD5 is used only to create a digest to ensure integrity of > the region, no actual encryption is done. This patch set changes the integrity > check to use crc32 instead of md5 since crc32 is available in both FIPS and > non-FIPS modes. > > Note that the digest is only used as an integrity check. No actual encryption > is done. If crc32 is good enough, would a 1's compliment sum be good enough? It is likely to be faster to calculate and not need special functions be built into the kernel at all. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
