xor.h File Reference

#include <rz_types.h>

Go to the source code of this file.

Macros
#define	RZ_HASH_XOR8_DIGEST_SIZE   1
#define	RZ_HASH_XOR_BLOCK_LENGTH   0
#define	RZ_HASH_XOR16_DIGEST_SIZE   2

Typedefs
typedef ut8	RzXor8
typedef ut16	RzXor16

Functions
bool	rz_xor8_init (RzXor8 *ctx)
bool	rz_xor8_update (RzXor8 *ctx, const ut8 *data, size_t len)
bool	rz_xor8_final (ut8 *digest, RzXor8 *ctx)
bool	rz_xor16_init (RzXor16 *ctx)
bool	rz_xor16_update (RzXor16 *ctx, const ut8 *data, size_t len)
bool	rz_xor16_final (ut8 *digest, RzXor16 *ctx)

Macro Definition Documentation

RZ_HASH_XOR16_DIGEST_SIZE

#define RZ_HASH_XOR16_DIGEST_SIZE   2

Definition at line 18 of file xor.h.

RZ_HASH_XOR8_DIGEST_SIZE

#define RZ_HASH_XOR8_DIGEST_SIZE   1

Definition at line 9 of file xor.h.

RZ_HASH_XOR_BLOCK_LENGTH

#define RZ_HASH_XOR_BLOCK_LENGTH   0

Definition at line 10 of file xor.h.

Typedef Documentation

RzXor16

typedef ut16 RzXor16

Definition at line 20 of file xor.h.

RzXor8

typedef ut8 RzXor8

Definition at line 12 of file xor.h.

Function Documentation

rz_xor16_final()

bool rz_xor16_final	(	ut8 *	digest,
		RzXor16 *	ctx
	)

Definition at line 49 of file xor.c.

                                               {
    rz_return_val_if_fail(digest && ctx, false);
    rz_write_le16(digest, *ctx);
    return true;
}

References rz_return_val_if_fail, and rz_write_le16().

Referenced by plugin_xor16_final(), and plugin_xor16_small_block().

rz_xor16_init()

bool rz_xor16_init

(

RzXor16 *

ctx

)

Definition at line 29 of file xor.c.

                                 {
    rz_return_val_if_fail(ctx, false);
    *ctx = 0;
    return true;
}

References rz_return_val_if_fail.

Referenced by plugin_xor16_init(), and plugin_xor16_small_block().

rz_xor16_update()

bool rz_xor16_update	(	RzXor16 *	ctx,
		const ut8 *	data,
		size_t	len
	)

Definition at line 35 of file xor.c.

                                                                {
    rz_return_val_if_fail(ctx && data, false);
    ut16 value = *ctx;
    for (size_t i = 0; i < len; i += sizeof(ut16)) {
        if (len - i > sizeof(ut16)) {
            value ^= rz_read_at_le16(data, i);
        } else {
            value ^= (((ut16)data[i]) << 8);
        }
    }
    *ctx = value;
    return true;
}

References i, len, rz_read_at_le16(), rz_return_val_if_fail, and value.

Referenced by plugin_xor16_small_block(), and plugin_xor16_update().

rz_xor8_final()

bool rz_xor8_final	(	ut8 *	digest,
		RzXor8 *	ctx
	)

Definition at line 23 of file xor.c.

                                             {
    rz_return_val_if_fail(digest && ctx, false);
    *digest = *ctx;
    return true;
}

References rz_return_val_if_fail.

Referenced by plugin_xor8_final(), and plugin_xor8_small_block().

rz_xor8_init()

bool rz_xor8_init

(

RzXor8 *

ctx

)

Definition at line 7 of file xor.c.

                               {
    rz_return_val_if_fail(ctx, false);
    *ctx = 0;
    return true;
}

References rz_return_val_if_fail.

Referenced by plugin_xor8_init(), and plugin_xor8_small_block().

rz_xor8_update()

bool rz_xor8_update	(	RzXor8 *	ctx,
		const ut8 *	data,
		size_t	len
	)

Definition at line 13 of file xor.c.

                                                              {
    rz_return_val_if_fail(ctx && data, false);
    ut8 value = *ctx;
    for (size_t i = 0; i < len; ++i) {
        value ^= data[i];
    }
    *ctx = value;
    return true;
}

References i, len, rz_return_val_if_fail, and value.

Referenced by plugin_xor8_small_block(), and plugin_xor8_update().