/usr/share/crypto-policies/policies/modules
NameSizeModeActions
AD-SUPPORT.pmod3220644editdlrm
ECDHE-ONLY.pmod1210644editdlrm
NO-CAMELLIA.pmod900644editdlrm
NO-SHA1.pmod1230644editdlrm
OSPP.pmod19860644editdlrm
Edit: /usr/share/crypto-policies/policies/modules/NO-SHA1.pmod (123B)
# This is an example subpolicy dropping the SHA1 hash and signature support hash = -SHA1 sign = -*-SHA1 sha1_in_certs = 0