Data Structures | Defines | Functions | Variables
arc4.h File Reference
#include <stdint.h>

Go to the source code of this file.

Data Structures

struct  arc4_ctx


#define ARC4_CTX_SIZE   sizeof ( struct arc4_ctx )


void arc4_skip (const void *key, size_t keylen, size_t skip, const void *src, void *dst, size_t msglen)
 Perform ARC4 encryption or decryption, skipping initial keystream bytes.


struct cipher_algorithm arc4_algorithm

Define Documentation

#define ARC4_CTX_SIZE   sizeof ( struct arc4_ctx )

Definition at line 15 of file arc4.h.

Function Documentation

void arc4_skip ( const void *  key,
size_t  keylen,
size_t  skip,
const void *  src,
void *  dst,
size_t  msglen 

Perform ARC4 encryption or decryption, skipping initial keystream bytes.

keyARC4 encryption key
keylenKey length
skipNumber of bytes of keystream to skip
srcMessage to encrypt or decrypt
msglenLength of message
Return values:
dstEncrypted or decrypted message

Definition at line 115 of file arc4.c.

References arc4_setkey(), arc4_xor(), and NULL.

Referenced by tkip_kie_decrypt().

        struct arc4_ctx ctx;
        arc4_setkey ( &ctx, key, keylen );
        arc4_xor ( &ctx, NULL, NULL, skip );
        arc4_xor ( &ctx, src, dst, msglen );

Variable Documentation

Definition at line 124 of file arc4.c.

Referenced by tkip_decrypt(), tkip_encrypt(), wep_decrypt(), and wep_encrypt().