Page MenuHomeFreeBSD
Differential D6166 Diff 17039 sys/crypto/skein/skein_debug.c

Changeset View

Standalone View

View Options

sys/crypto/skein/skein_debug.c

/*********************************************************************** /***********************************************************************
** **
** Debug output functions for Skein hashing. ** Debug output functions for Skein hashing.
** **
** Source code author: Doug Whiting, 2008. ** Source code author: Doug Whiting, 2008.
** **
** This algorithm and source code is released to the public domain. ** This algorithm and source code is released to the public domain.
** **
************************************************************************/ ************************************************************************/
#include <stdio.h> #include <stdio.h>
#ifdef SKEIN_DEBUG /* only instantiate this code if SKEIN_DEBUG is on */ #ifdef SKEIN_DEBUG /* only instantiate this code if SKEIN_DEBUG is on */
#include "skein.h" #include "skein.h"
static const char INDENT[] = " "; /* how much to indent on new line */ static const char INDENT[] = " "; /* how much to indent on new line */
uint_t skein_DebugFlag = 0; /* off by default. Must be set externally */ u_int skein_DebugFlag = 0; /* off by default. Must be set externally */
static void Show64_step(size_t cnt,const u64b_t *X,size_t step) static void Show64_step(size_t cnt,const u_int64_t *X,size_t step)
{ {
size_t i,j; size_t i,j;
for (i=j=0;i < cnt;i++,j+=step) for (i=j=0;i < cnt;i++,j+=step)
{ {
if (i % 4 == 0) printf(INDENT); if (i % 4 == 0) printf(INDENT);
printf(" %08X.%08X ",(uint_32t)(X[j] >> 32),(uint_32t)X[j]); printf(" %08X.%08X ",(u_int32_t)(X[j] >> 32),(u_int32_t)X[j]);
if (i % 4 == 3 || i==cnt-1) printf("\n"); if (i % 4 == 3 || i==cnt-1) printf("\n");
fflush(stdout); fflush(stdout);
} }
} }
#define Show64(cnt,X) Show64_step(cnt,X,1) #define Show64(cnt,X) Show64_step(cnt,X,1)
static void Show64_flag(size_t cnt,const u64b_t *X) static void Show64_flag(size_t cnt,const u_int64_t *X)
{ {
size_t xptr = (size_t) X; size_t xptr = (size_t) X;
size_t step = (xptr & 1) ? 2 : 1; size_t step = (xptr & 1) ? 2 : 1;
if (step != 1) if (step != 1)
{ {
X = (const u64b_t *) (xptr & ~1); X = (const u_int64_t *) (xptr & ~1);
} }
Show64_step(cnt,X,step); Show64_step(cnt,X,step);
} }
static void Show08(size_t cnt,const u08b_t *b) static void Show08(size_t cnt,const u_int8_t *b)
{ {
size_t i; size_t i;
for (i=0;i < cnt;i++) for (i=0;i < cnt;i++)
{ {
if (i %16 == 0) printf(INDENT); if (i %16 == 0) printf(INDENT);
else if (i % 4 == 0) printf(" "); else if (i % 4 == 0) printf(" ");
printf(" %02X",b[i]); printf(" %02X",b[i]);
if (i %16 == 15 || i==cnt-1) printf("\n"); if (i %16 == 15 || i==cnt-1) printf("\n");
fflush(stdout); fflush(stdout);
} }
} }
static const char *AlgoHeader(uint_t bits) static const char *AlgoHeader(u_int bits)
{ {
if (skein_DebugFlag & SKEIN_DEBUG_THREEFISH) if (skein_DebugFlag & SKEIN_DEBUG_THREEFISH)
switch (bits) switch (bits)
{ {
case 256: return ":Threefish-256: "; case 256: return ":Threefish-256: ";
case 512: return ":Threefish-512: "; case 512: return ":Threefish-512: ";
case 1024: return ":Threefish-1024:"; case 1024: return ":Threefish-1024:";
} }
else else
switch (bits) switch (bits)
{ {
case 256: return ":Skein-256: "; case 256: return ":Skein-256: ";
case 512: return ":Skein-512: "; case 512: return ":Skein-512: ";
case 1024: return ":Skein-1024:"; case 1024: return ":Skein-1024:";
} }
return NULL; return NULL;
} }
void Skein_Show_Final(uint_t bits,const Skein_Ctxt_Hdr_t *h,size_t cnt,const u08b_t *outPtr) void Skein_Show_Final(u_int bits,const Skein_Ctxt_Hdr_t *h,size_t cnt,const u_int8_t *outPtr)
{ {
if (skein_DebugFlag & SKEIN_DEBUG_CONFIG || ((h->T[1] & SKEIN_T1_BLK_TYPE_MASK) != SKEIN_T1_BLK_TYPE_CFG)) if (skein_DebugFlag & SKEIN_DEBUG_CONFIG || ((h->T[1] & SKEIN_T1_BLK_TYPE_MASK) != SKEIN_T1_BLK_TYPE_CFG))
if (skein_DebugFlag & SKEIN_DEBUG_FINAL) if (skein_DebugFlag & SKEIN_DEBUG_FINAL)
{ {
printf("\n%s Final output=\n",AlgoHeader(bits)); printf("\n%s Final output=\n",AlgoHeader(bits));
Show08(cnt,outPtr); Show08(cnt,outPtr);
printf(" ++++++++++\n"); printf(" ++++++++++\n");
fflush(stdout); fflush(stdout);
} }
} }
/* show state after a round (or "pseudo-round") */ /* show state after a round (or "pseudo-round") */
void Skein_Show_Round(uint_t bits,const Skein_Ctxt_Hdr_t *h,size_t r,const u64b_t *X) void Skein_Show_Round(u_int bits,const Skein_Ctxt_Hdr_t *h,size_t r,const u_int64_t *X)
{ {
static uint_t injectNum=0; /* not multi-thread safe! */ static u_int injectNum=0; /* not multi-thread safe! */
if (skein_DebugFlag & SKEIN_DEBUG_CONFIG || ((h->T[1] & SKEIN_T1_BLK_TYPE_MASK) != SKEIN_T1_BLK_TYPE_CFG)) if (skein_DebugFlag & SKEIN_DEBUG_CONFIG || ((h->T[1] & SKEIN_T1_BLK_TYPE_MASK) != SKEIN_T1_BLK_TYPE_CFG))
if (skein_DebugFlag) if (skein_DebugFlag)
{ {
if (r >= SKEIN_RND_SPECIAL) if (r >= SKEIN_RND_SPECIAL)
{ /* a key injection (or feedforward) point */ { /* a key injection (or feedforward) point */
injectNum = (r == SKEIN_RND_KEY_INITIAL) ? 0 : injectNum+1; injectNum = (r == SKEIN_RND_KEY_INITIAL) ? 0 : injectNum+1;
if ( skein_DebugFlag & SKEIN_DEBUG_INJECT || if ( skein_DebugFlag & SKEIN_DEBUG_INJECT ||
Show All 16 Lines if (skein_DebugFlag)
printf("=\n"); printf("=\n");
Show64(bits/64,X); Show64(bits/64,X);
if (r== SKEIN_RND_FEED_FWD) if (r== SKEIN_RND_FEED_FWD)
printf(" ----------\n"); printf(" ----------\n");
} }
} }
else if (skein_DebugFlag & SKEIN_DEBUG_ROUNDS) else if (skein_DebugFlag & SKEIN_DEBUG_ROUNDS)
{ {
uint_t j; u_int j;
u64b_t p[SKEIN_MAX_STATE_WORDS]; u_int64_t p[SKEIN_MAX_STATE_WORDS];
const u08b_t *perm; const u_int8_t *perm;
const static u08b_t PERM_256 [4][ 4] = { { 0,1,2,3 }, { 0,3,2,1 }, { 0,1,2,3 }, { 0,3,2,1 } }; const static u_int8_t PERM_256 [4][ 4] = { { 0,1,2,3 }, { 0,3,2,1 }, { 0,1,2,3 }, { 0,3,2,1 } };
const static u08b_t PERM_512 [4][ 8] = { { 0,1,2,3,4,5,6,7 }, const static u_int8_t PERM_512 [4][ 8] = { { 0,1,2,3,4,5,6,7 },
{ 2,1,4,7,6,5,0,3 }, { 2,1,4,7,6,5,0,3 },
{ 4,1,6,3,0,5,2,7 }, { 4,1,6,3,0,5,2,7 },
{ 6,1,0,7,2,5,4,3 } { 6,1,0,7,2,5,4,3 }
}; };
const static u08b_t PERM_1024[4][16] = { { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15 }, const static u_int8_t PERM_1024[4][16] = { { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15 },
{ 0, 9, 2,13, 6,11, 4,15,10, 7,12, 3,14, 5, 8, 1 }, { 0, 9, 2,13, 6,11, 4,15,10, 7,12, 3,14, 5, 8, 1 },
{ 0, 7, 2, 5, 4, 3, 6, 1,12,15,14,13, 8,11,10, 9 }, { 0, 7, 2, 5, 4, 3, 6, 1,12,15,14,13, 8,11,10, 9 },
{ 0,15, 2,11, 6,13, 4, 9,14, 1, 8, 5,10, 3,12, 7 } { 0,15, 2,11, 6,13, 4, 9,14, 1, 8, 5,10, 3,12, 7 }
}; };
if ((skein_DebugFlag & SKEIN_DEBUG_PERMUTE) && (r & 3)) if ((skein_DebugFlag & SKEIN_DEBUG_PERMUTE) && (r & 3))
{ {
printf("\n%s [state after round %2d (permuted)]=\n",AlgoHeader(bits),(int)r); printf("\n%s [state after round %2d (permuted)]=\n",AlgoHeader(bits),(int)r);
Show All 12 Lines if (skein_DebugFlag)
printf("\n%s [state after round %2d]=\n",AlgoHeader(bits),(int)r); printf("\n%s [state after round %2d]=\n",AlgoHeader(bits),(int)r);
Show64(bits/64,X); Show64(bits/64,X);
} }
} }
} }
} }
/* show state after a round (or "pseudo-round"), given a list of pointers */ /* show state after a round (or "pseudo-round"), given a list of pointers */
void Skein_Show_R_Ptr(uint_t bits,const Skein_Ctxt_Hdr_t *h,size_t r,const u64b_t *X_ptr[]) void Skein_Show_R_Ptr(u_int bits,const Skein_Ctxt_Hdr_t *h,size_t r,const u_int64_t *X_ptr[])
{ {
uint_t i; u_int i;
u64b_t X[SKEIN_MAX_STATE_WORDS]; u_int64_t X[SKEIN_MAX_STATE_WORDS];
for (i=0;i<bits/64;i++) /* copy over the words */ for (i=0;i<bits/64;i++) /* copy over the words */
X[i] = X_ptr[i][0]; X[i] = X_ptr[i][0];
Skein_Show_Round(bits,h,r,X); Skein_Show_Round(bits,h,r,X);
} }
/* show the state at the start of a block */ /* show the state at the start of a block */
void Skein_Show_Block(uint_t bits,const Skein_Ctxt_Hdr_t *h,const u64b_t *X,const u08b_t *blkPtr, void Skein_Show_Block(u_int bits,const Skein_Ctxt_Hdr_t *h,const u_int64_t *X,const u_int8_t *blkPtr,
const u64b_t *wPtr, const u64b_t *ksPtr, const u64b_t *tsPtr) const u_int64_t *wPtr, const u_int64_t *ksPtr, const u_int64_t *tsPtr)
{ {
uint_t n; u_int n;
if (skein_DebugFlag & SKEIN_DEBUG_CONFIG || ((h->T[1] & SKEIN_T1_BLK_TYPE_MASK) != SKEIN_T1_BLK_TYPE_CFG)) if (skein_DebugFlag & SKEIN_DEBUG_CONFIG || ((h->T[1] & SKEIN_T1_BLK_TYPE_MASK) != SKEIN_T1_BLK_TYPE_CFG))
if (skein_DebugFlag) if (skein_DebugFlag)
{ {
if (skein_DebugFlag & SKEIN_DEBUG_HDR) if (skein_DebugFlag & SKEIN_DEBUG_HDR)
{ {
printf("\n%s Block: outBits=%4d. T0=%06X.",AlgoHeader(bits),(uint_t) h->hashBitLen,(uint_t)h->T[0]); printf("\n%s Block: outBits=%4d. T0=%06X.",AlgoHeader(bits),(u_int) h->hashBitLen,(u_int)h->T[0]);
printf(" Type="); printf(" Type=");
n = (uint_t) ((h->T[1] & SKEIN_T1_BLK_TYPE_MASK) >> SKEIN_T1_POS_BLK_TYPE); n = (u_int) ((h->T[1] & SKEIN_T1_BLK_TYPE_MASK) >> SKEIN_T1_POS_BLK_TYPE);
switch (n) switch (n)
{ {
case SKEIN_BLK_TYPE_KEY: printf("KEY. "); break; case SKEIN_BLK_TYPE_KEY: printf("KEY. "); break;
case SKEIN_BLK_TYPE_CFG: printf("CFG. "); break; case SKEIN_BLK_TYPE_CFG: printf("CFG. "); break;
case SKEIN_BLK_TYPE_PERS: printf("PERS."); break; case SKEIN_BLK_TYPE_PERS: printf("PERS."); break;
case SKEIN_BLK_TYPE_PK : printf("PK. "); break; case SKEIN_BLK_TYPE_PK : printf("PK. "); break;
case SKEIN_BLK_TYPE_KDF: printf("KDF. "); break; case SKEIN_BLK_TYPE_KDF: printf("KDF. "); break;
case SKEIN_BLK_TYPE_MSG: printf("MSG. "); break; case SKEIN_BLK_TYPE_MSG: printf("MSG. "); break;
case SKEIN_BLK_TYPE_OUT: printf("OUT. "); break; case SKEIN_BLK_TYPE_OUT: printf("OUT. "); break;
default: printf("0x%02X.",n); break; default: printf("0x%02X.",n); break;
} }
printf(" Flags="); printf(" Flags=");
printf((h->T[1] & SKEIN_T1_FLAG_FIRST) ? " First":" "); printf((h->T[1] & SKEIN_T1_FLAG_FIRST) ? " First":" ");
printf((h->T[1] & SKEIN_T1_FLAG_FINAL) ? " Final":" "); printf((h->T[1] & SKEIN_T1_FLAG_FINAL) ? " Final":" ");
printf((h->T[1] & SKEIN_T1_FLAG_BIT_PAD) ? " Pad" :" "); printf((h->T[1] & SKEIN_T1_FLAG_BIT_PAD) ? " Pad" :" ");
n = (uint_t) ((h->T[1] & SKEIN_T1_TREE_LVL_MASK) >> SKEIN_T1_POS_TREE_LVL); n = (u_int) ((h->T[1] & SKEIN_T1_TREE_LVL_MASK) >> SKEIN_T1_POS_TREE_LVL);
if (n) if (n)
printf(" TreeLevel = %02X",n); printf(" TreeLevel = %02X",n);
printf("\n"); printf("\n");
fflush(stdout); fflush(stdout);
} }
if (skein_DebugFlag & SKEIN_DEBUG_TWEAK) if (skein_DebugFlag & SKEIN_DEBUG_TWEAK)
{ {
printf(" Tweak:\n"); printf(" Tweak:\n");
Show All 19 Lines if (skein_DebugFlag)
if (skein_DebugFlag & SKEIN_DEBUG_INPUT_08) if (skein_DebugFlag & SKEIN_DEBUG_INPUT_08)
{ {
printf(" Input block (bytes):\n"); printf(" Input block (bytes):\n");
Show08(bits/8,blkPtr); Show08(bits/8,blkPtr);
} }
} }
} }
void Skein_Show_Key(uint_t bits,const Skein_Ctxt_Hdr_t *h,const u08b_t *key,size_t keyBytes) void Skein_Show_Key(u_int bits,const Skein_Ctxt_Hdr_t *h,const u_int8_t *key,size_t keyBytes)
{ {
if (keyBytes) if (keyBytes)
if (skein_DebugFlag & SKEIN_DEBUG_CONFIG || ((h->T[1] & SKEIN_T1_BLK_TYPE_MASK) != SKEIN_T1_BLK_TYPE_CFG)) if (skein_DebugFlag & SKEIN_DEBUG_CONFIG || ((h->T[1] & SKEIN_T1_BLK_TYPE_MASK) != SKEIN_T1_BLK_TYPE_CFG))
if (skein_DebugFlag & SKEIN_DEBUG_KEY) if (skein_DebugFlag & SKEIN_DEBUG_KEY)
{ {
printf("\n%s MAC key = %4u bytes\n",AlgoHeader(bits),(unsigned) keyBytes); printf("\n%s MAC key = %4u bytes\n",AlgoHeader(bits),(unsigned) keyBytes);
Show08(keyBytes,key); Show08(keyBytes,key);
} }
} }
#endif #endif