Differential D15446 Diff 42592 sys/opencrypto/xform_aes_icm.c

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sys/opencrypto/xform_aes_icm.c

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	static void aes_icm_zerokey(u_int8_t **);	static void aes_icm_zerokey(u_int8_t **);
	static void aes_icm_reinit(caddr_t, u_int8_t *);	static void aes_icm_reinit(caddr_t, u_int8_t *);
	static void aes_gcm_reinit(caddr_t, u_int8_t *);	static void aes_gcm_reinit(caddr_t, u_int8_t *);
		static void aes_ccm_reinit(caddr_t, u_int8_t *);

	/* Encryption instances */	/* Encryption instances */
	struct enc_xform enc_xform_aes_icm = {	struct enc_xform enc_xform_aes_icm = {
Context not available.
	aes_gcm_reinit,	aes_gcm_reinit,
	};	};

		struct enc_xform enc_xform_ccm = {
		CRYPTO_AES_CCM_16, "AES-CCM",
		AES_ICM_BLOCK_LEN, AES_GCM_IV_LEN, AES_MIN_KEY, AES_MAX_KEY,
		aes_icm_crypt,
		aes_icm_crypt,
		aes_icm_setkey,
		aes_icm_zerokey,
		aes_ccm_reinit,
		};

	/*	/*
	* Encryption wrapper routines.	* Encryption wrapper routines.
	*/	*/
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	}	}

	static void	static void
		aes_ccm_reinit(caddr_t key, u_int8_t *iv)
		{
		struct aes_icm_ctx *ctx;
		ctx = (struct aes_icm_ctx*)key;

		/* CCM has flags, then the IV, then the counter, which starts at 1 */
		explicit_bzero(ctx->ac_block, sizeof(ctx->ac_block));
		ctx->ac_block[0] = (15 - AES_GCM_IV_LEN) - 1; /* 3 bytes for length field; this gives a nonce of 12 bytes */
		mavUnsubmitted Not Done Inline Actions Again tool long line. mav: Again tool long line.
		bcopy(iv, ctx->ac_block+1, AES_GCM_IV_LEN);
		ctx->ac_block[AESICM_BLOCKSIZE - 1] = 1;
		}

		static void
	aes_icm_crypt(caddr_t key, u_int8_t *data)	aes_icm_crypt(caddr_t key, u_int8_t *data)
	{	{
	struct aes_icm_ctx *ctx;	struct aes_icm_ctx *ctx;
Context not available.