Crate uselesskey_core_negative_der 

Deprecated compatibility shim for DER negative fixture helpers.

Prefer uselesskey-core; DER corruption helpers are now owned by uselesskey_core::srp::negative::der.

Functions

corrupt_der_deterministic

Choose a corruption strategy deterministically from variant and apply it to der.

flip_byte

XOR the byte at offset with 0x01, returning the original if offset is out of range.

truncate_der

Truncate der to at most len bytes, returning the original if already shorter.