arc4.c File Reference

#include "polarssl/config.h"
#include "polarssl/arc4.h"
#include <string.h>
#include <stdio.h>

Include dependency graph for arc4.c:

Go to the source code of this file.

Functions
void	arc4_setup (arc4_context *ctx, const unsigned char *key, unsigned int keylen)
	ARC4 key schedule.
int	arc4_crypt (arc4_context *ctx, size_t length, const unsigned char *input, unsigned char *output)
	ARC4 cipher function.
int	arc4_self_test (int verbose)
	Checkup routine.
Variables
static const unsigned char	arc4_test_key [3][8]
static const unsigned char	arc4_test_pt [3][8]
static const unsigned char	arc4_test_ct [3][8]

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Function Documentation

int arc4_crypt	(	arc4_context *	ctx,
		size_t	length,
		const unsigned char *	input,
		unsigned char *	output
	)

ARC4 cipher function.

Parameters:

	ctx	ARC4 context
	length	length of the input data
	input	buffer holding the input data
	output	buffer for the output data

Returns:

0 if successful

Definition at line 71 of file arc4.c.

References arc4_context::m, arc4_context::x, and arc4_context::y.

Referenced by arc4_crypt_stream_wrap(), arc4_self_test(), and pkcs12_pbe_sha1_rc4_128().

int arc4_self_test

(

int

verbose

)

Checkup routine.

Returns:

0 if successful, or 1 if the test failed

Definition at line 136 of file arc4.c.

References arc4_crypt(), arc4_setup(), arc4_test_ct, arc4_test_key, and arc4_test_pt.

void arc4_setup	(	arc4_context *	ctx,
		const unsigned char *	key,
		unsigned int	keylen
	)

ARC4 key schedule.

Parameters:

	ctx	ARC4 context to be initialized
	key	the secret key
	keylen	length of the key, in bytes

Definition at line 42 of file arc4.c.

References arc4_context::m, arc4_context::x, and arc4_context::y.

Referenced by arc4_self_test(), arc4_setkey_wrap(), and pkcs12_pbe_sha1_rc4_128().

---

Variable Documentation

const unsigned char arc4_test_ct[3][8] [static]

Initial value:

{
    { 0x75, 0xB7, 0x87, 0x80, 0x99, 0xE0, 0xC5, 0x96 },
    { 0x74, 0x94, 0xC2, 0xE7, 0x10, 0x4B, 0x08, 0x79 },
    { 0xDE, 0x18, 0x89, 0x41, 0xA3, 0x37, 0x5D, 0x3A }
}

Definition at line 126 of file arc4.c.

Referenced by arc4_self_test().

const unsigned char arc4_test_key[3][8] [static]

Initial value:

{
    { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
    { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
}

Definition at line 112 of file arc4.c.

Referenced by arc4_self_test().

const unsigned char arc4_test_pt[3][8] [static]

Initial value:

{
    { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
}

Definition at line 119 of file arc4.c.

Referenced by arc4_self_test().