arc2.h File Reference

Header file for the NanoCrypto RC2 Internal APIs. More...

Go to the source code of this file.

Functions
MOC_EXTERN void	rc2_decrypt (const ubyte2 xkey[64], ubyte *plain, const ubyte *cipher)
	Decrypts a 64 bit block of data. More...
MOC_EXTERN void	rc2_encrypt (const ubyte2 xkey[64], const ubyte *plain, ubyte *cipher)
	Encrypts a 64 bit block of data. More...
MOC_EXTERN void	rc2_keyschedule (ubyte2 xkey[64], const ubyte *key, ubyte4 len, ubyte4 bits)
	Computes the rc2 key schedule. More...

Detailed Description

This file contains the NanoCrypto RC2 Internal API methods.

To enable the NanoCrypto RC2 functions, the following flag must be defined in moptions.h:

• __ENABLE_ARC2_CIPHERS__

Additionally, the following flag must not be defined:

• __ARC2_HARDWARE_CIPHER__

arc2.h

Function Documentation

rc2_decrypt()

MOC_EXTERN void rc2_decrypt	(	const ubyte2	xkey[64],
		ubyte *	plain,
		const ubyte *	cipher
	)

Decrypts a 64 bit block of data.

To enable the NanoCrypto RC2 functions, the following flag must be defined

• __ENABLE_ARC2_CIPHERS__

Parameters

xkey	The key schedule to be used to decrypt the data.
plain	Buffer that will hold the resulting 64 bits (8 bytes) of plaintext.
cipher	Buffer holding the 64 bit (8 byte) block of data to be decrypted.

arc2.h

rc2_encrypt()

MOC_EXTERN void rc2_encrypt	(	const ubyte2	xkey[64],
		const ubyte *	plain,
		ubyte *	cipher
	)

Encrypts a 64 bit block of data.

To enable the NanoCrypto RC2 functions, the following flag must be defined

• __ENABLE_ARC2_CIPHERS__

Parameters

xkey	The key schedule to be used to encrypt the data.
plain	Buffer holding the 64 bit (8 byte) block of data to be encrypted.
cipher	Buffer that will hold the resulting 64 bits (8 bytes) of ciphertext.

arc2.h

rc2_keyschedule()

MOC_EXTERN void rc2_keyschedule	(	ubyte2	xkey[64],
		const ubyte *	key,
		ubyte4	len,
		ubyte4	bits
	)

Computes the rc2 key schedule.

To enable the NanoCrypto RC2 functions, the following flag must be defined

• __ENABLE_ARC2_CIPHERS__

Parameters

xkey	Will hold the resulting 128 bit key schedule.
key	Buffer holding the input key.
len	The length of the key in bytes.
bits	The requested effective key bits.

arc2.h