#include <crypto/chacha20.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <cstdint>
#include <vector>

Include dependency graph for crypto_diff_fuzz_chacha20.cpp:

Go to the source code of this file.

Classes
struct	ECRYPT_ctx

Macros
#define	U8C(v) (v##U)

#define	U32C(v) (v##U)

#define	U8V(v) ((u8)(v)&U8C(0xFF))

#define	U32V(v) ((u32)(v)&U32C(0xFFFFFFFF))

#define	ROTL32(v, n) (U32V((v) << (n)) \| ((v) >> (32 - (n))))

#define	U8TO32_LITTLE(p)

#define	U32TO8_LITTLE(p, v)

#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)

Typedefs
typedef unsigned int	u32

typedef unsigned char	u8

Functions
void	ECRYPT_keysetup (ECRYPT_ctx ctx, const u8 key, u32 keysize, u32 ivsize)

void	ECRYPT_ivsetup (ECRYPT_ctx ctx, const u8 iv)

void	ECRYPT_encrypt_bytes (ECRYPT_ctx ctx, const u8 plaintext, u8 *ciphertext, u32 msglen)

void	ECRYPT_keystream_bytes (ECRYPT_ctx ctx, u8 keystream, u32 length)

	FUZZ_TARGET (crypto_diff_fuzz_chacha20)

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

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

Macro Definition Documentation

◆ PLUS

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

Definition at line 83 of file crypto_diff_fuzz_chacha20.cpp.

◆ PLUSONE

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

Definition at line 84 of file crypto_diff_fuzz_chacha20.cpp.

◆ QUARTERROUND

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

Value:

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

Definition at line 86 of file crypto_diff_fuzz_chacha20.cpp.

◆ ROTATE

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

Definition at line 81 of file crypto_diff_fuzz_chacha20.cpp.

◆ ROTL32

#define ROTL32	(	v,
		n
	)	(U32V((v) << (n)) \| ((v) >> (32 - (n))))

Definition at line 29 of file crypto_diff_fuzz_chacha20.cpp.

◆ U32C

#define U32C ( v ) (v##U)

Definition at line 24 of file crypto_diff_fuzz_chacha20.cpp.

◆ U32TO8_LITTLE

#define U32TO8_LITTLE	(	p,
		v
	)

Value:

    do {                         \
        (p)[0] = U8V((v));       \
        (p)[1] = U8V((v) >> 8);  \
        (p)[2] = U8V((v) >> 16); \
        (p)[3] = U8V((v) >> 24); \
    } while (0)