RootCauseunvalidated
overhead = 10 + 2 * field_size + md_size — DER-encoded BIGNUMs use minimum-length encoding. Tension: small-valued coordinates take far fewer bytes. Outcome: the actual DER overhead is less than assumed, meaning the C2 payload field occupies more bytes than expected.
d911c21e-6056-49bc-81d9-42a7a35a37b8
overhead = 10 + 2 * field_size + md_size — DER-encoded BIGNUMs use minimum-length encoding. Tension: small-valued coordinates take far fewer bytes. Outcome: the actual DER overhead is less than assumed, meaning the C2 payload field occupies more bytes than expected.