gec.c File Reference

Galois embedded crypto iplementation. More...

#include "modules/datalink/gec/gec.h"

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Functions
void	gec_sts_init (struct gec_sts_ctx *sts)
void	gec_clear_sts (struct gec_sts_ctx *sts)
void	gec_generate_ephemeral_keys (struct gec_privkey *sk)
	Generate private and public key pairs for future use. More...
void	gec_derive_key_material (struct gec_sts_ctx *ctx, uint8_t *z)
	Derive key material for both sender and receiver. More...
uint32_t	gec_bytes_to_counter (uint8_t *bytes)
	Convert from network byte order (big endian) to the machine byte order. More...
void	gec_counter_to_bytes (uint32_t n, uint8_t *bytes)
	Convert counter to bytes in network byte order. More...

Detailed Description

Galois embedded crypto iplementation.

Definition in file gec.c.

Function Documentation

uint32_t gec_bytes_to_counter

(

uint8_t *

bytes

)

Convert from network byte order (big endian) to the machine byte order.

Definition at line 117 of file gec.c.

Referenced by gec_decrypt_message().

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void gec_clear_sts

(

struct gec_sts_ctx *

sts

)

Definition at line 54 of file gec.c.

References ERROR_NONE, gec_sts_ctx::last_error, gec_sts_ctx::my_private_ephemeral, gec_sts_ctx::party, gec_sts_ctx::protocol_stage, gec_privkey::ready, gec_pubkey::ready, gec_sym_key::ready, RESPONDER, gec_sts_ctx::rx_sym_key, gec_sts_ctx::their_public_ephemeral, gec_sts_ctx::tx_sym_key, and WAIT_MSG1.

Referenced by gec_sts_init().

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void gec_counter_to_bytes	(	uint32_t	n,
		uint8_t *	bytes
	)

Convert counter to bytes in network byte order.

Definition at line 142 of file gec.c.

Referenced by gec_encrypt_message().

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void gec_derive_key_material	(	struct gec_sts_ctx *	ctx,
		uint8_t *	z
	)

Derive key material for both sender and receiver.

Definition at line 91 of file gec.c.

References gec_sym_key::counter, gec_sym_key::key, gec_sym_key::nonce, PPRZ_KEY_LEN, PPRZ_NONCE_LEN, gec_sym_key::ready, gec_sts_ctx::rx_sym_key, and gec_sts_ctx::tx_sym_key.

Referenced by gec_process_msg1().

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void gec_generate_ephemeral_keys

(

struct gec_privkey *

sk

)

Generate private and public key pairs for future use.

Definition at line 73 of file gec.c.

References PPRZ_KEY_LEN, gec_privkey::priv, gec_privkey::pub, gec_privkey::ready, and rng_wait_and_get().

Referenced by gec_process_msg1(), and gec_sts_init().

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void gec_sts_init

(

struct gec_sts_ctx *

sts

)

Definition at line 33 of file gec.c.

References gec_clear_sts(), gec_generate_ephemeral_keys(), gec_sts_ctx::my_private_ephemeral, gec_sts_ctx::my_private_key, PPRZ_KEY_LEN, gec_privkey::priv, gec_privkey::pub, gec_privkey::ready, gec_pubkey::ready, and gec_sts_ctx::their_public_key.

Referenced by gec_dl_init().

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