cx_mlkem_internal.c File Reference

Internal ML-KEM deterministic routines (not part of the public API). More...

#include <string.h>
#include "cx_mlkem_internal.h"
#include "cx_mlkem_indcpa.h"
#include "cx_mlkem_util.h"
#include "cx_utils.h"

Include dependency graph for cx_mlkem_internal.c:

Go to the source code of this file.

Functions
cx_err_t	MLKEM_crypto_kem_keypair_derand (uint8_t *pk, size_t pk_len, uint8_t *sk, size_t sk_len, const uint8_t coins[2 *MLKEM_SYMBYTES], MLKEM_param_t param)
	Deterministic ML-KEM key pair generation.
cx_err_t	MLKEM_crypto_kem_enc_derand (uint8_t *ct, size_t ct_len, uint8_t *ss, size_t ss_len, const uint8_t *pk, size_t pk_len, const uint8_t coins[2 *MLKEM_SYMBYTES], MLKEM_param_t param)
	Deterministic ML-KEM encapsulation.

Detailed Description

Internal ML-KEM deterministic routines (not part of the public API).

Contains the derandomized key-generation and encapsulation functions that are used internally and exposed only for testing.

Definition in file cx_mlkem_internal.c.

Function Documentation

MLKEM_crypto_kem_enc_derand()

cx_err_t MLKEM_crypto_kem_enc_derand	(	uint8_t *	ct,
		size_t	ct_len,
		uint8_t *	ss,
		size_t	ss_len,
		const uint8_t *	pk,
		size_t	pk_len,
		const uint8_t	coins[2 *MLKEM_SYMBYTES],
		MLKEM_param_t	param
	)

Deterministic ML-KEM encapsulation.

Produces a ciphertext and a shared secret from a public key using caller-supplied random coins.

Parameters

[out]	ct	Ciphertext output buffer.
[in]	ct_len	Size of the ciphertext buffer in bytes.
[out]	ss	Shared secret output buffer.
[in]	ss_len	Size of the shared secret buffer in bytes.
[in]	pk	Public key.
[in]	pk_len	Size of the public key in bytes.
[in]	coins	Random coins of 2 * MLKEM_SYMBYTES bytes.
[in]	param	ML-KEM parameter set selector.

Returns

CX_OK on success, error code otherwise.

Definition at line 77 of file cx_mlkem_internal.c.

MLKEM_crypto_kem_keypair_derand()

cx_err_t MLKEM_crypto_kem_keypair_derand	(	uint8_t *	pk,
		size_t	pk_len,
		uint8_t *	sk,
		size_t	sk_len,
		const uint8_t	coins[2 *MLKEM_SYMBYTES],
		MLKEM_param_t	param
	)

Deterministic ML-KEM key pair generation.

Generates a key pair from caller-supplied random coins.

Parameters

[out]	pk	Public key output buffer.
[in]	pk_len	Size of the public key buffer in bytes.
[out]	sk	Secret key output buffer.
[in]	sk_len	Size of the secret key buffer in bytes.
[in]	coins	Random coins of 2 * MLKEM_SYMBYTES bytes.
[in]	param	ML-KEM parameter set selector.

Returns

CX_OK on success, error code otherwise.

Definition at line 31 of file cx_mlkem_internal.c.