Module types 

Public command, message-stream, pass-request, result, flag, and error encodings shared by the core, simulator, and FPGA shell.

Structs

Ed25519Command

One top-level Ed25519 operation request.

Ed25519Result

Held top-level operation result and instrumentation counters.

MessageWord

One ready/valid message transfer containing up to eight bytes.

PassRequest

Request from the hash feeder for a contiguous message segment.

Constants

ERROR_INVALID_OP

The command operation encoding is unsupported.

ERROR_MALFORMED_POINT

A compressed public key or signature point is not a canonical curve point.

ERROR_MISSING_KEY

Cached-key signing was requested before a key was cached.

ERROR_NONE

Successful operation.

ERROR_NON_CANONICAL_SCALAR

Signature scalar S is greater than or equal to the group order.

ERROR_SMALL_ORDER

A decoded public key or signature point has small order.

ERROR_STREAM_FRAMING

Message keep, last, or byte count disagrees with the requested pass.

ERROR_VERIFY_EQUATION

The strict Ed25519 verification equation does not hold.

FLAG_STRICT_VERIFY

Request strict Dalek-compatible point/scalar verification checks.

FLAG_USE_CACHED_KEY

Sign using the core’s retained expanded key instead of the command seed.

OP_CLEAR_KEY

Invalidate and zeroize the retained expanded signing key.

OP_DERIVE_PUBLIC_KEY

Derive a compressed public key from an RFC 8032 32-byte seed.

OP_SIGN

Sign a streamed message.

OP_VERIFY

Strictly verify a streamed message and signature.

Functions

empty_command

Return a zero-initialized command suitable for an idle input.

empty_pass_request

Return a deasserted replay request.

empty_result

Return a deasserted, successful-code result with zero payload and counters.