ecb.c File Reference

Electronic codebook (ECB) More...

#include <assert.h>
#include <ipxe/crypto.h>
#include <ipxe/ecb.h>

Go to the source code of this file.

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
	FILE_SECBOOT (PERMITTED)
void	ecb_encrypt (void *ctx, const void *src, void *dst, size_t len, struct cipher_algorithm *raw_cipher)
	Encrypt data. More...
void	ecb_decrypt (void *ctx, const void *src, void *dst, size_t len, struct cipher_algorithm *raw_cipher)
	Decrypt data. More...

Detailed Description

Electronic codebook (ECB)

Definition in file ecb.c.

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

GPL2_OR_LATER_OR_UBDL

)

FILE_SECBOOT()

FILE_SECBOOT

(

PERMITTED

)

ecb_encrypt()

void ecb_encrypt	(	void *	ctx,
		const void *	src,
		void *	dst,
		size_t	len,
		struct cipher_algorithm *	raw_cipher
	)

Encrypt data.

Parameters

ctx	Context
src	Data to encrypt
dst	Buffer for encrypted data
len	Length of data
raw_cipher	Underlying cipher algorithm

Definition at line 46 of file ecb.c.

                                                         {
        size_t blocksize = raw_cipher->blocksize;

        assert ( ( len % blocksize ) == 0 );

        while ( len ) {
                cipher_encrypt ( raw_cipher, ctx, src, dst, blocksize );
                dst += blocksize;
                src += blocksize;
                len -= blocksize;
        }
}

References assert(), cipher_algorithm::blocksize, cipher_encrypt, ctx, len, and src.

ecb_decrypt()

void ecb_decrypt	(	void *	ctx,
		const void *	src,
		void *	dst,
		size_t	len,
		struct cipher_algorithm *	raw_cipher
	)

Decrypt data.

Parameters

ctx	Context
src	Data to decrypt
dst	Buffer for decrypted data
len	Length of data
raw_cipher	Underlying cipher algorithm

Definition at line 69 of file ecb.c.

                                                         {
        size_t blocksize = raw_cipher->blocksize;

        assert ( ( len % blocksize ) == 0 );

        while ( len ) {
                cipher_decrypt ( raw_cipher, ctx, src, dst, blocksize );
                dst += blocksize;
                src += blocksize;
                len -= blocksize;
        }
}

References assert(), cipher_algorithm::blocksize, cipher_decrypt, ctx, len, and src.