/*--------------------- Static Functions --------------------------*/
/*
-static unsigned long s_dwGetUINT32(unsigned char *p); // Get unsigned long from 4 bytes LSByte first
-static void s_vPutUINT32(unsigned char *p, unsigned long val); // Put unsigned long into 4 bytes LSByte first
+ static unsigned long s_dwGetUINT32(unsigned char *p); // Get unsigned long from 4 bytes LSByte first
+ static void s_vPutUINT32(unsigned char *p, unsigned long val); // Put unsigned long into 4 bytes LSByte first
*/
static void s_vClear(void); // Clear the internal message,
- // resets the object to the state just after construction.
+// resets the object to the state just after construction.
static void s_vSetKey(unsigned long dwK0, unsigned long dwK1);
static void s_vAppendByte(unsigned char b); // Add a single byte to the internal message
/*--------------------- Export Functions --------------------------*/
/*
-static unsigned long s_dwGetUINT32 (unsigned char *p)
+ static unsigned long s_dwGetUINT32 (unsigned char *p)
// Convert from unsigned char [] to unsigned long in a portable way
{
- unsigned long res = 0;
- unsigned int i;
- for(i=0; i<4; i++ )
- {
- res |= (*p++) << (8*i);
- }
- return res;
+unsigned long res = 0;
+unsigned int i;
+for (i=0; i<4; i++)
+{
+ res |= (*p++) << (8 * i);
+}
+return res;
}
static void s_vPutUINT32 (unsigned char *p, unsigned long val)
// Convert from unsigned long to unsigned char [] in a portable way
{
- unsigned int i;
- for(i=0; i<4; i++ )
- {
- *p++ = (unsigned char) (val & 0xff);
- val >>= 8;
- }
+ unsigned int i;
+ for (i=0; i<4; i++)
+ {
+ *p++ = (unsigned char) (val & 0xff);
+ val >>= 8;
+ }
}
*/
-static void s_vClear (void)
+static void s_vClear(void)
{
- // Reset the state to the empty message.
- L = K0;
- R = K1;
- nBytesInM = 0;
- M = 0;
+ // Reset the state to the empty message.
+ L = K0;
+ R = K1;
+ nBytesInM = 0;
+ M = 0;
}
-static void s_vSetKey (unsigned long dwK0, unsigned long dwK1)
+static void s_vSetKey(unsigned long dwK0, unsigned long dwK1)
{
- // Set the key
- K0 = dwK0;
- K1 = dwK1;
- // and reset the message
- s_vClear();
+ // Set the key
+ K0 = dwK0;
+ K1 = dwK1;
+ // and reset the message
+ s_vClear();
}
-static void s_vAppendByte (unsigned char b)
+static void s_vAppendByte(unsigned char b)
{
- // Append the byte to our word-sized buffer
- M |= b << (8*nBytesInM);
- nBytesInM++;
- // Process the word if it is full.
- if( nBytesInM >= 4 )
- {
- L ^= M;
- R ^= ROL32( L, 17 );
- L += R;
- R ^= ((L & 0xff00ff00) >> 8) | ((L & 0x00ff00ff) << 8);
- L += R;
- R ^= ROL32( L, 3 );
- L += R;
- R ^= ROR32( L, 2 );
- L += R;
- // Clear the buffer
- M = 0;
- nBytesInM = 0;
- }
+ // Append the byte to our word-sized buffer
+ M |= b << (8*nBytesInM);
+ nBytesInM++;
+ // Process the word if it is full.
+ if (nBytesInM >= 4)
+ {
+ L ^= M;
+ R ^= ROL32(L, 17);
+ L += R;
+ R ^= ((L & 0xff00ff00) >> 8) | ((L & 0x00ff00ff) << 8);
+ L += R;
+ R ^= ROL32(L, 3);
+ L += R;
+ R ^= ROR32(L, 2);
+ L += R;
+ // Clear the buffer
+ M = 0;
+ nBytesInM = 0;
+ }
}
-void MIC_vInit (unsigned long dwK0, unsigned long dwK1)
+void MIC_vInit(unsigned long dwK0, unsigned long dwK1)
{
- // Set the key
- s_vSetKey(dwK0, dwK1);
+ // Set the key
+ s_vSetKey(dwK0, dwK1);
}
-void MIC_vUnInit (void)
+void MIC_vUnInit(void)
{
- // Wipe the key material
- K0 = 0;
- K1 = 0;
+ // Wipe the key material
+ K0 = 0;
+ K1 = 0;
- // And the other fields as well.
- //Note that this sets (L,R) to (K0,K1) which is just fine.
- s_vClear();
+ // And the other fields as well.
+ //Note that this sets (L,R) to (K0,K1) which is just fine.
+ s_vClear();
}
-void MIC_vAppend (unsigned char *src, unsigned int nBytes)
+void MIC_vAppend(unsigned char *src, unsigned int nBytes)
{
- // This is simple
- while (nBytes > 0)
- {
- s_vAppendByte(*src++);
- nBytes--;
- }
+ // This is simple
+ while (nBytes > 0)
+ {
+ s_vAppendByte(*src++);
+ nBytes--;
+ }
}
-void MIC_vGetMIC (unsigned long *pdwL, unsigned long *pdwR)
+void MIC_vGetMIC(unsigned long *pdwL, unsigned long *pdwR)
{
- // Append the minimum padding
- s_vAppendByte(0x5a);
- s_vAppendByte(0);
- s_vAppendByte(0);
- s_vAppendByte(0);
- s_vAppendByte(0);
- // and then zeroes until the length is a multiple of 4
- while( nBytesInM != 0 )
- {
- s_vAppendByte(0);
- }
- // The s_vAppendByte function has already computed the result.
- *pdwL = L;
- *pdwR = R;
- // Reset to the empty message.
- s_vClear();
+ // Append the minimum padding
+ s_vAppendByte(0x5a);
+ s_vAppendByte(0);
+ s_vAppendByte(0);
+ s_vAppendByte(0);
+ s_vAppendByte(0);
+ // and then zeroes until the length is a multiple of 4
+ while (nBytesInM != 0)
+ {
+ s_vAppendByte(0);
+ }
+ // The s_vAppendByte function has already computed the result.
+ *pdwL = L;
+ *pdwR = R;
+ // Reset to the empty message.
+ s_vClear();
}