blowfish.c File Reference

#include <string.h>
#include "attributes.h"
#include "intreadwrite.h"
#include "mem.h"
#include "blowfish.h"

Go to the source code of this file.

Macros
#define	F(Xl, Xr, P)

Functions
AVBlowfish *	av_blowfish_alloc (void)
	Allocate an AVBlowfish context. More...
av_cold void	av_blowfish_init (AVBlowfish *ctx, const uint8_t *key, int key_len)
	Initialize an AVBlowfish context. More...
void	av_blowfish_crypt_ecb (AVBlowfish *ctx, uint32_t *xl, uint32_t *xr, int decrypt)
	Encrypt or decrypt a buffer using a previously initialized context. More...
void	av_blowfish_crypt (AVBlowfish *ctx, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt)
	Encrypt or decrypt a buffer using a previously initialized context. More...

Variables
static const uint32_t	orig_p [AV_BF_ROUNDS+2]
static const uint32_t	orig_s [4][256]

Macro Definition Documentation

F

#define F	(		Xl,
			Xr,
			P
	)

Value:

    Xr ^=((( ctx->s[0][ Xl >> 24        ] \
           + ctx->s[1][(Xl >> 16) & 0xFF])\
           ^ ctx->s[2][(Xl >>  8) & 0xFF])\
           + ctx->s[3][ Xl        & 0xFF])\
           ^ P;

Definition at line 298 of file blowfish.c.

Variable Documentation

orig_p

const uint32_t orig_p[AV_BF_ROUNDS+2]

static

Initial value:

= {
    0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344,
    0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89,
    0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C,
    0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917,
    0x9216D5D9, 0x8979FB1B
}

Definition at line 31 of file blowfish.c.

Referenced by av_blowfish_init().

orig_s

const uint32_t orig_s[4][256]

static

Definition at line 39 of file blowfish.c.

Referenced by av_blowfish_init().