file transfers is:
krb_mk_safe(3) for the sender
krb_rd_safe(3) for the receiver
The procedure associated with ENC commands, 632 replies, and Private
file transfers is:
krb_mk_priv(3) for the sender
krb_rd_priv(3) for the receiver
CONF commands and 633 replies are not supported.
Note that this specification for KERBEROS_V4 contains no provision
for negotiating alternate means for integrity and confidentiality
routines. Note also that the ADAT exchange does not convey whether
the peer supports confidentiality services.
In order to stay within the allowed PBSZ, implementors must take note
that a cleartext buffer will grow by 31 bytes when processed by
krb_mk_safe(3) and will grow by 26 bytes when processed by
krb_mk_priv(3).
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