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dsRC6 Class Reference

#include <dsRC6.h>

Inheritance diagram for dsRC6:

dsBlockCypher dsCypher dsCryptoBase List of all members.

Public Types

enum  keyMode {
  kmNONE = 0, kmENCRYPT = 0x2, kmDECRYPT = 0x4, kmOFB = kmENCRYPT,
  kmBOTH = kmENCRYPT | kmDECRYPT
}

Public Methods

virtual void setKey (const dsCypher_byte_t *p_key, dsCypher_word32_t p_keyLen, keyMode km=dsCypher::kmBOTH) dsCypher_SECTION
virtual void encryptBlock (const dsCypher_word32_t *inBlock, dsCypher_word32_t *outBlock) dsCypher_SECTION
virtual void decryptBlock (const dsCypher_word32_t *inBlock, dsCypher_word32_t *outBlock) dsCypher_SECTION
 dsRC6 (const dsCypher_byte_t *p_key, dsCypher_word32_t p_keyLen)
 dsRC6 ()
virtual void ecbEncrypt (dsCypher_byte_t *p_dest, const dsCypher_byte_t *p_src, dsCypher_word32_t p_srcLen)
virtual void ecbDecrypt (dsCypher_byte_t *p_dest, const dsCypher_byte_t *p_src, dsCypher_word32_t p_srcLen)
virtual void cbcEncrypt (dsCypher_byte_t *p_dest, const dsCypher_byte_t *p_src, dsCypher_word32_t p_srcLen, const dsCypher_byte_t *iv)
virtual void cbcDecrypt (dsCypher_byte_t *p_dest, const dsCypher_byte_t *p_src, dsCypher_word32_t p_srcLen, const dsCypher_byte_t *iv)
virtual void ofbXOR (dsCypher_byte_t *p_dest, const dsCypher_byte_t *p_src, dsCypher_word32_t p_srcLen, const dsCypher_byte_t *iv)
virtual void ofbXOR (std::ostream &p_dest, std::istream &p_src, const dsCypher_byte_t *ivec)
bool ready ()

Public Attributes

keyMode _active_key_mode

Protected Methods

void memSet (dsCypher_byte_t *ptr, dsCypher_byte_t pattern, dsCypher_word32_t size)
void memCopy (dsCypher_byte_t *dest, const dsCypher_byte_t *src, dsCypher_word32_t size)
dsCypher_word32_t n2l (const dsCypher_byte_t *c)
dsCypher_word32_t n2le (const dsCypher_byte_t *c)
void l2n (dsCypher_word32_t l, dsCypher_byte_t *c)
void l2ne (dsCypher_word32_t l, dsCypher_byte_t *c)
void n_n2l (dsCypher_word32_t *dest, const dsCypher_byte_t *src, dsCypher_word32_t srcLen)
void n_n2le (dsCypher_word32_t *dest, const dsCypher_byte_t *src, dsCypher_word32_t srcLen)
void n_l2n (dsCypher_byte_t *dest, const dsCypher_word32_t *src, dsCypher_word32_t srcLen)
void n_l2ne (dsCypher_byte_t *dest, const dsCypher_word32_t *src, dsCypher_word32_t srcLen)
void n_xor (dsCypher_word32_t *dest, const dsCypher_word32_t *src, dsCypher_word32_t size)
dsCypher_word32_t rotl (dsCypher_word32_t x, dsCypher_word32_t n)
dsCypher_word32_t rotr (dsCypher_word32_t x, dsCypher_word32_t n)

Protected Attributes

dsCypher_word32_t _block_size

Detailed Description

This class is implementation of RSA RC6 encryption algorithm.

This code based on: B R Gladman implementation for AES submition.

Copyright in this code is held by Dr B. R. Gladman but free direct or derivative use is permitted subject to acknowledgement of its origin. Dr B. R. Gladman . 25th January 2000.

Warning! This implementation incompatible to Wei Dai (libcrypto++)

Member Enumeration Documentation

enum dsCypher::keyMode [inherited]
 

Enumeration values:
kmNONE 
kmENCRYPT 
kmDECRYPT 
kmOFB 
kmBOTH 

Constructor & Destructor Documentation

dsRC6::dsRC6 (  const dsCypher_byte_t *    p_key,
dsCypher_word32_t    p_keyLen
) 
 

dsRC6::dsRC6 (    ) 
 

Member Function Documentation

virtual void dsBlockCypher::cbcDecrypt (  dsCypher_byte_t *    p_dest,
const dsCypher_byte_t *    p_src,
dsCypher_word32_t    p_srcLen,
const dsCypher_byte_t *    iv
)  [virtual, inherited]
 

virtual void dsBlockCypher::cbcEncrypt (  dsCypher_byte_t *    p_dest,
const dsCypher_byte_t *    p_src,
dsCypher_word32_t    p_srcLen,
const dsCypher_byte_t *    iv
)  [virtual, inherited]
 

Perform CBC encryption/decryption

virtual void dsRC6::decryptBlock (  const dsCypher_word32_t *    inBlock,
dsCypher_word32_t *    outBlock
)  [virtual]
 

Implements dsBlockCypher.

virtual void dsBlockCypher::ecbDecrypt (  dsCypher_byte_t *    p_dest,
const dsCypher_byte_t *    p_src,
dsCypher_word32_t    p_srcLen
)  [virtual, inherited]
 

virtual void dsBlockCypher::ecbEncrypt (  dsCypher_byte_t *    p_dest,
const dsCypher_byte_t *    p_src,
dsCypher_word32_t    p_srcLen
)  [virtual, inherited]
 

Perform ECB encryption/decryption

virtual void dsRC6::encryptBlock (  const dsCypher_word32_t *    inBlock,
dsCypher_word32_t *    outBlock
)  [virtual]
 

Basic encryption/decryption

NB! RC6 operate with 128 bit blocks

Implements dsBlockCypher.

void dsCryptoBase::l2n (  dsCypher_word32_t    l,
dsCypher_byte_t *    c
)  [inline, protected, inherited]
 

void dsCryptoBase::l2ne (  dsCypher_word32_t    l,
dsCypher_byte_t *    c
)  [inline, protected, inherited]
 

void dsCryptoBase::memCopy (  dsCypher_byte_t *    dest,
const dsCypher_byte_t *    src,
dsCypher_word32_t    size
)  [inline, protected, inherited]
 

void dsCryptoBase::memSet (  dsCypher_byte_t *    ptr,
dsCypher_byte_t    pattern,
dsCypher_word32_t    size
)  [inline, protected, inherited]
 

These routines placed here to allow developer to providei os specific implementation, it's not virtual because calling virtual function inside encryption algorithm dramatically decrease performance

dsCypher_word32_t dsCryptoBase::n2l (  const dsCypher_byte_t *    c )  [inline, protected, inherited]
 

Byte sequence to Word32 and back conversion routines

dsCypher_word32_t dsCryptoBase::n2le (  const dsCypher_byte_t *    c )  [inline, protected, inherited]
 

void dsCryptoBase::n_l2n (  dsCypher_byte_t *    dest,
const dsCypher_word32_t *    src,
dsCypher_word32_t    srcLen
)  [inline, protected, inherited]
 

void dsCryptoBase::n_l2ne (  dsCypher_byte_t *    dest,
const dsCypher_word32_t *    src,
dsCypher_word32_t    srcLen
)  [inline, protected, inherited]
 

void dsCryptoBase::n_n2l (  dsCypher_word32_t *    dest,
const dsCypher_byte_t *    src,
dsCypher_word32_t    srcLen
)  [inline, protected, inherited]
 

void dsCryptoBase::n_n2le (  dsCypher_word32_t *    dest,
const dsCypher_byte_t *    src,
dsCypher_word32_t    srcLen
)  [inline, protected, inherited]
 

void dsCryptoBase::n_xor (  dsCypher_word32_t *    dest,
const dsCypher_word32_t *    src,
dsCypher_word32_t    size
)  [inline, protected, inherited]
 

virtual void dsBlockCypher::ofbXOR (  std::ostream &    p_dest,
std::istream &    p_src,
const dsCypher_byte_t *    ivec
)  [virtual, inherited]
 

C++ stream interfaces

virtual void dsBlockCypher::ofbXOR (  dsCypher_byte_t *    p_dest,
const dsCypher_byte_t *    p_src,
dsCypher_word32_t    p_srcLen,
const dsCypher_byte_t *    iv
)  [virtual, inherited]
 

Perform stream encryption/decryption (OFB)

bool dsCypher::ready (    )  [inline, inherited]
 

dsCypher_word32_t dsCryptoBase::rotl (  dsCypher_word32_t    x,
dsCypher_word32_t    n
)  [inline, protected, inherited]
 

dsCypher_word32_t dsCryptoBase::rotr (  dsCypher_word32_t    x,
dsCypher_word32_t    n
)  [inline, protected, inherited]
 

virtual void dsRC6::setKey (  const dsCypher_byte_t *    p_key,
dsCypher_word32_t    p_keyLen,
keyMode    km = dsCypher::kmBOTH
)  [virtual]
 

Initialise algorithm, set encryption/decryption key It's signigficant to allow developer encrypt/decrypt message using single call of setKey, - so all siginificant data should remain unchanged on cryptoXOR call

Implements dsCypher.

Member Data Documentation

keyMode dsCypher::_active_key_mode [inherited]
 

dsCypher_word32_t dsCypher::_block_size [protected, inherited]
 

The documentation for this class was generated from the following file:
Generated on Mon May 16 18:27:00 2005 for libdms4 by doxygen1.3-rc2