FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
Files | Data Structures | Functions

Files

file  xtea.c
 XTEA 32-bit implementation.
 

Data Structures

struct  AVXTEA
 

Functions

AVXTEAav_xtea_alloc (void)
 Allocate an AVXTEA context. More...
 
void av_xtea_init (struct AVXTEA *ctx, const uint8_t key[16])
 Initialize an AVXTEA context. More...
 
void av_xtea_crypt (struct AVXTEA *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...
 

Detailed Description

Function Documentation

AVXTEA* av_xtea_alloc ( void  )

Allocate an AVXTEA context.

Definition at line 43 of file xtea.c.

Referenced by run_lavu_xtea().

void av_xtea_init ( struct AVXTEA ctx,
const uint8_t  key[16] 
)

Initialize an AVXTEA context.

Parameters
ctxan AVXTEA context
keya key of 16 bytes used for encryption/decryption

Definition at line 48 of file xtea.c.

Referenced by rtmpe8_sig(), and run_lavu_xtea().

void av_xtea_crypt ( struct AVXTEA 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.

Parameters
ctxan AVXTEA context
dstdestination array, can be equal to src
srcsource array, can be equal to dst
countnumber of 8 byte blocks
ivinitialization vector for CBC mode, if NULL then ECB will be used
decrypt0 for encryption, 1 for decryption

Definition at line 176 of file xtea.c.

Referenced by rtmpe8_sig(), and run_lavu_xtea().