#include "sw_ecrypt-sync.h"

Include dependency graph for sw_chacha.c:

Macros
#define	ECRYPT_LITTLE_ENDIAN

#define	ROTATE(v, c) (ROTL32(v, c))

#define	XOR(v, w) ((v) ^ (w))

#define	PLUS(v, w) (U32V((v) + (w)))

#define	PLUSONE(v) (PLUS((v), 1))

#define	QUARTERROUND(a, b, c, d)

Functions
static void	salsa20_wordtobyte (u8 output[64], const u32 input[16])

void	ECRYPT_init (void)

void	ECRYPT_keysetup (ECRYPT_ctx x, const u8 k, u32 kbits, u32 ivbits)

void	ECRYPT_ivsetup (ECRYPT_ctx x, const u8 iv)

void	ECRYPT_encrypt_bytes (ECRYPT_ctx x, const u8 m, u8 *c, u32 bytes)

void	ECRYPT_decrypt_bytes (ECRYPT_ctx x, const u8 c, u8 *m, u32 bytes)

void	ECRYPT_keystream_bytes (ECRYPT_ctx x, u8 stream, u32 bytes)

Variables
static const char	sigma [16] = "expand 32-byte k"

static const char	tau [16] = "expand 16-byte k"

Macro Definition Documentation

§ ECRYPT_LITTLE_ENDIAN

#define ECRYPT_LITTLE_ENDIAN

§ ROTATE

#define ROTATE	(	v,
		c
	)	(ROTL32(v, c))

§ XOR

#define XOR	(	v,
		w
	)	((v) ^ (w))

§ PLUS

#define PLUS	(	v,
		w
	)	(U32V((v) + (w)))

Referenced by salsa20_wordtobyte().

§ PLUSONE

#define PLUSONE ( v ) (PLUS((v), 1))

Referenced by ECRYPT_encrypt_bytes().

§ QUARTERROUND

#define QUARTERROUND	(	a,
		b,
		c,
		d
	)

Value:

x[a] = PLUS(x[a], x[b]);            \
    x[d] = ROTATE(XOR(x[d], x[a]), 16); \
    x[c] = PLUS(x[c], x[d]);            \
    x[b] = ROTATE(XOR(x[b], x[c]), 12); \
    x[a] = PLUS(x[a], x[b]);            \
    x[d] = ROTATE(XOR(x[d], x[a]), 8);  \
    x[c] = PLUS(x[c], x[d]);            \
    x[b] = ROTATE(XOR(x[b], x[c]), 7);