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authorjbj <devnull@localhost>2001-09-26 14:45:50 +0000
committerjbj <devnull@localhost>2001-09-26 14:45:50 +0000
commit90fb17b3568ef80f14ccb58764c3e7898096dcb5 (patch)
tree574d41ac74c7c9e5407a6ed75333ce8e78268245 /rpmio
parent92556605afa18d27318aa526985e231e60ea70d7 (diff)
downloadrpm-90fb17b3568ef80f14ccb58764c3e7898096dcb5.tar.gz
rpm-90fb17b3568ef80f14ccb58764c3e7898096dcb5.tar.bz2
rpm-90fb17b3568ef80f14ccb58764c3e7898096dcb5.zip
- bind beecrypt md5/sha1 underneath rpmio.
CVS patchset: 5083 CVS date: 2001/09/26 14:45:50
Diffstat (limited to 'rpmio')
-rw-r--r--rpmio/digest.c642
-rw-r--r--rpmio/rpmio_internal.h9
-rw-r--r--rpmio/tdigest.c68
3 files changed, 68 insertions, 651 deletions
diff --git a/rpmio/digest.c b/rpmio/digest.c
index 5c032ed5d..847d5612c 100644
--- a/rpmio/digest.c
+++ b/rpmio/digest.c
@@ -4,12 +4,17 @@
#include "system.h"
#include "rpmio_internal.h"
+#include "beecrypt/beecrypt.h"
+#include "beecrypt/md5.h"
+#include "beecrypt/fips180.h"
+#include "beecrypt/sha256.h"
#include "debug.h"
-/*@-redef@*/
-typedef unsigned int uint32;
-typedef unsigned char byte;
-/*@=redef@*/
+#ifdef SHA_DEBUG
+#define DPRINTF(_a) fprintf _a
+#else
+#define DPRINTF(_a)
+#endif
/*@access DIGEST_CTX@*/
@@ -20,636 +25,92 @@ struct DIGEST_CTX_s {
rpmDigestFlags flags; /*!< Bit(s) to control digest operation. */
uint32 digestlen; /*!< No. bytes of digest. */
uint32 datalen; /*!< No. bytes in block of plaintext data. */
- void (*transform) (DIGEST_CTX); /*!< Digest transform. */
- int doByteReverse; /*!< Swap bytes in uint32? */
- uint32 bits[2]; /*!< No. bits of plain text. */
- uint32 digest[8]; /*!< Message digest. */
- byte in[64]; /*!< Next block of plain text. */
+ void * param; /*!< Digest parameters. */
+ int (*Reset) (void * param)
+ /*@modifies param @*/; /*!< Digest initialize. */
+ int (*Update) (void * param, const byte * data, int len)
+ /*@modifies param @*/; /*!< Digest transform. */
+ int (*Digest) (void * param, uint32 * data)
+ /*@modifies param, digest @*/; /*!< Digest finish. */
};
-/*
- * This code implements SHA-1 as defined in FIPS publication 180-1.
- * Based on SHA code originally posted to sci.crypt by Peter Gutmann
- * in message <30ajo5$oe8@ccu2.auckland.ac.nz>.
- * Modified to test for endianness on creation of SHA objects by AMK.
- * Also, the original specification of SHA was found to have a weakness
- * by NSA/NIST. This code implements the fixed version of SHA.
- *
- * Here's the first paragraph of Peter Gutmann's original posting:
- * - The following is my SHA (FIPS 180) code updated to allow use of the "fixed"
- * SHA, thanks to Jim Gillogly and an anonymous contributor for the information
- * on what's changed in the new version. The fix is a simple change which
- * involves adding a single rotate in the initial expansion function. It is
- * unknown whether this is an optimal solution to the problem which was
- * discovered in the SHA or whether it's simply a bandaid which fixes the
- * problem with a minimum of effort (for example the reengineering of a great
- * many Capstone chips).
- *
- * Copyright (C) 1995, A.M. Kuchling
- *
- * Distribute and use freely; there are no restrictions on further
- * dissemination and usage except those imposed by the laws of your
- * country of residence.
- *
- * Adapted to pike and some cleanup by Niels Möller.
- * Adapted for rpm use from mhash-0.8.3.
- */
-
-/**
- * The SHA f()-functions. The f1 and f3 functions can be optimized to
- * save one boolean operation each - thanks to Rich Schroeppel,
- * rcs@cs.arizona.edu for discovering this.
- */
-/*#define f1(x,y,z) ( ( x & y ) | ( ~x & z ) ) // Rounds 0-19 */
-#define f1(x,y,z) ( z ^ ( x & ( y ^ z ) ) ) /* Rounds 0-19 */
-#define f2(x,y,z) ( x ^ y ^ z ) /* Rounds 20-39 */
-/*#define f3(x,y,z) ( ( x & y ) | ( x & z ) | ( y & z ) ) // Rounds 40-59 */
-#define f3(x,y,z) ( ( x & y ) | ( z & ( x | y ) ) ) /* Rounds 40-59 */
-#define f4(x,y,z) ( x ^ y ^ z ) /* Rounds 60-79 */
-
-/**
- * The SHA Mysterious Constants.
- */
-#define K1 0x5A827999L /* Rounds 0-19 */
-#define K2 0x6ED9EBA1L /* Rounds 20-39 */
-#define K3 0x8F1BBCDCL /* Rounds 40-59 */
-#define K4 0xCA62C1D6L /* Rounds 60-79 */
-
-/**
- * 32-bit rotate left - kludged with shifts.
- */
-#define ROTL(n,X) ( ( (X) << (n) ) | ( (X) >> ( 32 - (n) ) ) )
-
-/**
- * The initial expanding function. The hash function is defined over an
- * 80-word expanded input array W, where the first 16 are copies of the input
- * data, and the remaining 64 are defined by
- *
- * \verbatim
- * W[ i ] = W[ i - 16 ] ^ W[ i - 14 ] ^ W[ i - 8 ] ^ W[ i - 3 ]
- * \endverbatim
- *
- * This implementation generates these values on the fly in a circular
- * buffer - thanks to Colin Plumb, colin@nyx10.cs.du.edu for this
- * optimization.
- *
- * The updated SHA changes the expanding function by adding a rotate of 1
- * bit. Thanks to Jim Gillogly, jim@rand.org, and an anonymous contributor
- * for this information
- */
-#define expand(W,i) ( W[ i & 15 ] = \
- ROTL( 1, ( W[ i & 15 ] ^ W[ (i - 14) & 15 ] ^ \
- W[ (i - 8) & 15 ] ^ W[ (i - 3) & 15 ] ) ) )
-
-/**
- * The prototype SHA sub-round.
- * The fundamental sub-round is:
- *
- * \verbatim
- * a' = e + ROTL( 5, a ) + f( b, c, d ) + k + data;
- * b' = a;
- * c' = ROTL( 30, b );
- * d' = c;
- * e' = d;
- * \endverbatim
- *
- * but this is implemented by unrolling the loop 5 times and renaming the
- * variables ( e, a, b, c, d ) = ( a', b', c', d', e' ) each iteration.
- * This code is then replicated 20 times for each of the 4 functions, using
- * the next 20 values from the W[] array each time.
- */
-
-#define subRound(a, b, c, d, e, f, k, data) \
- ( e += ROTL( 5, a ) + f( b, c, d ) + k + data, b = ROTL( 30, b ) )
-
-/**
- * Perform the SHA transformation. Note that this code, like MD5, seems to
- * break some optimizing compilers due to the complexity of the expressions
- * and the size of the basic block. It may be necessary to split it into
- * sections, e.g. based on the four subrounds
- *
- * Note that this function destroys the data area.
- */
-
-/**
- * The core of the SHA algorithm.
- * This alters an existing SHA hash to reflect the addition of 16 longwords
- * of new data.
- * @param private SHA private data
- */
-static void
-SHA1Transform(DIGEST_CTX ctx)
-{
- uint32 * in = (uint32 *) ctx->in;
- uint32 A, B, C, D, E; /* Local vars */
-#ifdef SHA_DEBUG
-int i;
-#define DPRINTF(_a) fprintf _a
-#else
-#define DPRINTF(_a)
-#endif
-
- /* Set up first buffer and local data buffer */
- A = ctx->digest[0];
- B = ctx->digest[1];
- C = ctx->digest[2];
- D = ctx->digest[3];
- E = ctx->digest[4];
-
-#ifdef SHA_DEBUG
-for (i = 0; i < 16; i++)
-DPRINTF((stderr, "W[%2d]: %08X\n", i, in[i]));
-#endif
- /* Heavy mangling, in 4 sub-rounds of 20 interations each. */
-#ifdef SHA_DEBUG
-i = 0;
-#endif
- subRound( A, B, C, D, E, f1, K1, in[ 0] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f1, K1, in[ 1] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f1, K1, in[ 2] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f1, K1, in[ 3] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f1, K1, in[ 4] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, A,B,C,D,E ));
- subRound( A, B, C, D, E, f1, K1, in[ 5] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f1, K1, in[ 6] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f1, K1, in[ 7] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f1, K1, in[ 8] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f1, K1, in[ 9] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, A,B,C,D,E ));
- subRound( A, B, C, D, E, f1, K1, in[10] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f1, K1, in[11] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f1, K1, in[12] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f1, K1, in[13] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f1, K1, in[14] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, A,B,C,D,E ));
- subRound( A, B, C, D, E, f1, K1, in[15] );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f1, K1, expand( in, 16 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f1, K1, expand( in, 17 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f1, K1, expand( in, 18 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f1, K1, expand( in, 19 ) );
-
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, A,B,C,D,E ));
- subRound( A, B, C, D, E, f2, K2, expand( in, 20 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f2, K2, expand( in, 21 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f2, K2, expand( in, 22 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f2, K2, expand( in, 23 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f2, K2, expand( in, 24 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, A,B,C,D,E ));
- subRound( A, B, C, D, E, f2, K2, expand( in, 25 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f2, K2, expand( in, 26 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f2, K2, expand( in, 27 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f2, K2, expand( in, 28 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f2, K2, expand( in, 29 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, A,B,C,D,E ));
- subRound( A, B, C, D, E, f2, K2, expand( in, 30 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f2, K2, expand( in, 31 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f2, K2, expand( in, 32 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f2, K2, expand( in, 33 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f2, K2, expand( in, 34 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, A,B,C,D,E ));
- subRound( A, B, C, D, E, f2, K2, expand( in, 35 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f2, K2, expand( in, 36 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f2, K2, expand( in, 37 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f2, K2, expand( in, 38 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f2, K2, expand( in, 39 ) );
-
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, A,B,C,D,E ));
- subRound( A, B, C, D, E, f3, K3, expand( in, 40 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f3, K3, expand( in, 41 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f3, K3, expand( in, 42 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f3, K3, expand( in, 43 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f3, K3, expand( in, 44 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, A,B,C,D,E ));
- subRound( A, B, C, D, E, f3, K3, expand( in, 45 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f3, K3, expand( in, 46 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f3, K3, expand( in, 47 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f3, K3, expand( in, 48 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f3, K3, expand( in, 49 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, A,B,C,D,E ));
- subRound( A, B, C, D, E, f3, K3, expand( in, 50 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f3, K3, expand( in, 51 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f3, K3, expand( in, 52 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f3, K3, expand( in, 53 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f3, K3, expand( in, 54 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, A,B,C,D,E ));
- subRound( A, B, C, D, E, f3, K3, expand( in, 55 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f3, K3, expand( in, 56 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f3, K3, expand( in, 57 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f3, K3, expand( in, 58 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f3, K3, expand( in, 59 ) );
-
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, A,B,C,D,E ));
- subRound( A, B, C, D, E, f4, K4, expand( in, 60 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f4, K4, expand( in, 61 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f4, K4, expand( in, 62 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f4, K4, expand( in, 63 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f4, K4, expand( in, 64 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, A,B,C,D,E ));
- subRound( A, B, C, D, E, f4, K4, expand( in, 65 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f4, K4, expand( in, 66 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f4, K4, expand( in, 67 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f4, K4, expand( in, 68 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f4, K4, expand( in, 69 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, A,B,C,D,E ));
- subRound( A, B, C, D, E, f4, K4, expand( in, 70 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f4, K4, expand( in, 71 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f4, K4, expand( in, 72 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f4, K4, expand( in, 73 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f4, K4, expand( in, 74 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, A,B,C,D,E ));
- subRound( A, B, C, D, E, f4, K4, expand( in, 75 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, E,A,B,C,D ));
- subRound( E, A, B, C, D, f4, K4, expand( in, 76 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, D,E,A,B,C ));
- subRound( D, E, A, B, C, f4, K4, expand( in, 77 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, C,D,E,A,B ));
- subRound( C, D, E, A, B, f4, K4, expand( in, 78 ) );
-DPRINTF((stderr, "%5d: %08X %08X %08X %08X %08X\n", i++, B,C,D,E,A ));
- subRound( B, C, D, E, A, f4, K4, expand( in, 79 ) );
-
- /* Build message digest */
- ctx->digest[0] += A;
- ctx->digest[1] += B;
- ctx->digest[2] += C;
- ctx->digest[3] += D;
- ctx->digest[4] += E;
-}
-
-/*
- * This code implements the MD5 message-digest algorithm.
- * The algorithm is due to Ron Rivest. This code was
- * written by Colin Plumb in 1993, no copyright is claimed.
- * This code is in the public domain; do with it what you wish.
- *
- * Equivalent code is available from RSA Data Security, Inc.
- * This code has been tested against that, and is equivalent,
- * except that you don't need to include two pages of legalese
- * with every copy.
- *
- * To compute the message digest of a chunk of bytes, declare an
- * MD5Context structure, pass it to MD5Init, call MD5Update as
- * needed on buffers full of bytes, and then call MD5Final, which
- * will fill a supplied 16-byte array with the digest.
- */
-
-/** The four core functions used in MD5 - F1 is optimized somewhat. */
-/* #define F1(x, y, z) (x & y | ~x & z) */
-#define F1(x, y, z) (z ^ (x & (y ^ z)))
-#define F2(x, y, z) F1(z, x, y)
-#define F3(x, y, z) (x ^ y ^ z)
-#define F4(x, y, z) (y ^ (x | ~z))
-
-/** The central step in the MD5 algorithm. */
-#define MD5STEP(f, w, x, y, z, data, s) \
- ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
-
-/**
- * The core of the MD5 algorithm.
- * Update MD5 context with next 64 bytes of plain text.
- * @param private MD5 private data
- */
-static void
-MD5Transform(DIGEST_CTX ctx)
-{
- register uint32 * in = (uint32 *)ctx->in;
- register uint32 a = ctx->digest[0];
- register uint32 b = ctx->digest[1];
- register uint32 c = ctx->digest[2];
- register uint32 d = ctx->digest[3];
-
- MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
- MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
- MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
- MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
- MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
- MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
- MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
- MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
- MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
- MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
- MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
- MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
- MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
- MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
- MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
- MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
-
- MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
- MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
- MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
- MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
- MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
- MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
- MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
- MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
- MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
- MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
- MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
- MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
- MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
- MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
- MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
- MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
-
- MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
- MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
- MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
- MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
- MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
- MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
- MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
- MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
- MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
- MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
- MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
- MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
- MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
- MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
- MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
- MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
-
- MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
- MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
- MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
- MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
- MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
- MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
- MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
- MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
- MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
- MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
- MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
- MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
- MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
- MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
- MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
- MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
-
- ctx->digest[0] += a;
- ctx->digest[1] += b;
- ctx->digest[2] += c;
- ctx->digest[3] += d;
-}
-
-static int _ie = 0x44332211;
-/*@-redef@*/
-static union _mendian {
-/*@unused@*/ int i;
- char b[4];
-} *_endian = (union _mendian *)&_ie;
-/*@=redef@*/
-#define IS_BIG_ENDIAN() (_endian->b[0] == '\x44')
-#define IS_LITTLE_ENDIAN() (_endian->b[0] == '\x11')
-
-/*
- * Reverse bytes for each integer in buffer.
- * @param buf data buffer (uint32 aligned address)
- * @param nbytes no. bytes of data (multiple of sizeof(uint32))
- */
-/*@-shadow@*/
-static void
-byteReverse(byte *buf, unsigned nbytes)
- /*@modifies *buf @*/
-{
- unsigned nlongs = nbytes / sizeof(uint32);
- uint32 t;
- if (IS_BIG_ENDIAN()) {
- do {
- t = (uint32) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
- ((unsigned) buf[1] << 8 | buf[0]);
- *(uint32 *) buf = t;
- buf += 4;
- } while (--nlongs);
- } else {
- do {
- t = (uint32) ((unsigned) buf[0] << 8 | buf[1]) << 16 |
- ((unsigned) buf[2] << 8 | buf[3]);
- *(uint32 *) buf = t;
- buf += 4;
- } while (--nlongs);
- }
-}
-/*@=shadow@*/
-
DIGEST_CTX
rpmDigestInit(rpmDigestFlags flags)
{
DIGEST_CTX ctx = xcalloc(1, sizeof(*ctx));
-#ifdef SHA_DEBUG
-int i;
-DPRINTF((stderr, "*** Init(%x)\n", flags));
-#endif
ctx->flags = flags;
if (flags & RPMDIGEST_MD5) {
ctx->digestlen = 16;
ctx->datalen = 64;
- ctx->transform = MD5Transform;
- ctx->digest[0] = 0x67452301;
- ctx->digest[1] = 0xefcdab89;
- ctx->digest[2] = 0x98badcfe;
- ctx->digest[3] = 0x10325476;
- /* md5 sums are little endian (no swap) so big endian needs the swap. */
- ctx->doByteReverse = (IS_BIG_ENDIAN()) ? 1 : 0;
+ ctx->param = xcalloc(1, sizeof(md5Param));
+ ctx->Reset = (void *) md5Reset;
+ ctx->Update = (void *) md5Update;
+ ctx->Digest = (void *) md5Digest;
}
if (flags & RPMDIGEST_SHA1) {
ctx->digestlen = 20;
ctx->datalen = 64;
- ctx->transform = SHA1Transform;
- ctx->digest[ 0 ] = 0x67452301;
- ctx->digest[ 1 ] = 0xefcdab89;
- ctx->digest[ 2 ] = 0x98badcfe;
- ctx->digest[ 3 ] = 0x10325476;
- ctx->digest[ 4 ] = 0xc3d2e1f0;
- /* md5 sums are little endian (no swap) so big endian needs the swap. */
- ctx->doByteReverse = (IS_BIG_ENDIAN()) ? 0 : 1;
-#ifdef SHA_DEBUG
-for (i =0; i < 5; i++)
-DPRINTF((stderr, "H[%2d]: %X\n", i, ctx->digest[i]));
-#endif
+ ctx->param = xcalloc(1, sizeof(sha1Param));
+ ctx->Reset = (void *) sha1Reset;
+ ctx->Update = (void *) sha1Update;
+ ctx->Digest = (void *) sha1Digest;
}
- if (flags & RPMDIGEST_REVERSE)
- ctx->doByteReverse ^= 1;
-
- ctx->bits[0] = 0;
- ctx->bits[1] = 0;
+ (void) (*ctx->Reset) (ctx->param);
+DPRINTF((stderr, "*** Init(%x) ctx %p param %p\n", flags, ctx, ctx->param));
return ctx;
}
void
rpmDigestUpdate(DIGEST_CTX ctx, const void * data, size_t len)
{
- const byte * buf = data;
- uint32 t;
-
- /* Update bitcount */
-
- t = ctx->bits[0];
- if ((ctx->bits[0] = t + ((uint32) len << 3)) < t)
- ctx->bits[1]++; /* Carry from low to high */
- ctx->bits[1] += len >> 29;
-
- t = (t >> 3) % ctx->datalen; /* Bytes already in ctx->in */
-
- /* Handle any leading odd-sized chunks */
- if (t) {
- byte *p = (byte *) ctx->in + t;
-
- t = ctx->datalen - t; /* Bytes left in ctx->in */
- if (len < t) {
- memcpy(p, buf, len);
- return;
- }
- memcpy(p, buf, t);
- if (ctx->doByteReverse)
- byteReverse(ctx->in, ctx->datalen);
- /*@-moduncon@*/
- ctx->transform(ctx);
- /*@=moduncon@*/
- buf += t;
- len -= t;
- }
-
- /* Process data in ctx->datalen chunks */
- for (; len >= ctx->datalen; buf += ctx->datalen, len -= ctx->datalen) {
- memmove(ctx->in, buf, ctx->datalen);
- if (ctx->doByteReverse)
- byteReverse(ctx->in, ctx->datalen);
- /*@-moduncon@*/
- ctx->transform(ctx);
- /*@=moduncon@*/
- }
-
- /* Handle any remaining bytes of data. */
- memmove(ctx->in, buf, len);
+DPRINTF((stderr, "*** Update(%p,%p,%d) param %p \"%s\"\n", ctx, data, len, ctx->param, ((char *)data)));
+ (void) (*ctx->Update) (ctx->param, data, len);
}
+static int _ie = 0x44332211;
+/*@-redef@*/
+static union _dendian {
+/*@unused@*/ int i;
+ char b[4];
+} *_endian = (union _dendian *)&_ie;
+/*@=redef@*/
+#define IS_BIG_ENDIAN() (_endian->b[0] == '\x44')
+#define IS_LITTLE_ENDIAN() (_endian->b[0] == '\x11')
+
void
rpmDigestFinal(/*@only@*/ DIGEST_CTX ctx, /*@out@*/ void ** datap,
/*@out@*/ size_t *lenp, int asAscii)
{
- unsigned count = (ctx->bits[0] >> 3) % ctx->datalen;
- byte * p = ctx->in + count;
+ uint32 * digest = xmalloc(ctx->digestlen);
+ char * t;
+ int i;
- /* Set the first char of padding to 0x80. This is safe since there is
- always at least one byte free */
- *p++ = 0x80;
-
- /* No. bytes of padding needed to fill buffer. */
- count = ctx->datalen - 1 - count;
-
- /* Insure that next block has room for no. of plaintext bits. */
- if (count < sizeof(ctx->bits)) {
- memset(p, 0, count);
- if (ctx->doByteReverse)
- byteReverse(ctx->in, ctx->datalen);
- /*@-moduncon@*/
- ctx->transform(ctx);
- /*@=moduncon@*/
- p = ctx->in;
- count = ctx->datalen;
- }
+DPRINTF((stderr, "*** Final(%p,%p,%p,%d) param %p digest %p\n", ctx, datap, lenp, asAscii, ctx->param, digest));
+ (void) (*ctx->Digest) (ctx->param, digest);
- /* Pad next block with zeroes, add no. of plaintext bits. */
- memset(p, 0, count - sizeof(ctx->bits));
- if (ctx->doByteReverse)
- byteReverse(ctx->in, ctx->datalen - sizeof(ctx->bits));
-
- if (ctx->flags & (RPMDIGEST_MD5|RPMDIGEST_BCSWAP)) {
- ((uint32 *) ctx->in)[14] = ctx->bits[0];
- ((uint32 *) ctx->in)[15] = ctx->bits[1];
- } else {
- ((uint32 *) ctx->in)[14] = ctx->bits[1];
- ((uint32 *) ctx->in)[15] = ctx->bits[0];
- }
- /*@-moduncon@*/
- ctx->transform(ctx);
- /*@=moduncon@*/
-
- if (ctx->doByteReverse)
- byteReverse((byte *) ctx->digest, ctx->digestlen);
+ if (IS_LITTLE_ENDIAN())
+ for (i = 0; i < (ctx->digestlen/sizeof(uint32)); i++)
+ digest[i] = swapu32(digest[i]);
/* Return final digest. */
if (!asAscii) {
if (lenp) *lenp = ctx->digestlen;
if (datap) {
- *datap = xmalloc(ctx->digestlen);
- memcpy(*datap, ctx->digest, ctx->digestlen);
+ *datap = digest;
+ digest = NULL;
}
} else {
if (lenp) *lenp = (2*ctx->digestlen) + 1;
if (datap) {
- const byte * s = (const byte *) ctx->digest;
+ const byte * s = (const byte *) digest;
static const char hex[] = "0123456789abcdef";
- char * t;
- int i;
*datap = t = xmalloc((2*ctx->digestlen) + 1);
-
for (i = 0 ; i < ctx->digestlen; i++) {
*t++ = hex[ (unsigned)((*s >> 4) & 0x0f) ];
*t++ = hex[ (unsigned)((*s++ ) & 0x0f) ];
@@ -657,6 +118,11 @@ rpmDigestFinal(/*@only@*/ DIGEST_CTX ctx, /*@out@*/ void ** datap,
*t = '\0';
}
}
+ if (digest) {
+ memset(digest, 0, ctx->digestlen); /* In case it's sensitive */
+ free(digest);
+ }
+ free(ctx->param);
memset(ctx, 0, sizeof(*ctx)); /* In case it's sensitive */
free(ctx);
}
diff --git a/rpmio/rpmio_internal.h b/rpmio/rpmio_internal.h
index 314864933..9773e7b70 100644
--- a/rpmio/rpmio_internal.h
+++ b/rpmio/rpmio_internal.h
@@ -50,10 +50,13 @@ typedef /*@abstract@*/ struct {
*/
typedef enum rpmDigestFlags_e {
RPMDIGEST_MD5 = (1 << 0), /*!< MD5 digest. */
- RPMDIGEST_SHA1 = (1 << 1), /*!< SHA1 digest. */
+ RPMDIGEST_SHA1 = (1 << 1) /*!< SHA1 digest. */
+#ifdef DYING
RPMDIGEST_REVERSE = (1 << 16), /*!< Should bytes be reversed? */
RPMDIGEST_BCSWAP = (1 << 17), /*!< Should bit count be reversed? */
+#endif
} rpmDigestFlags;
+#define RPMDIGEST_MASK 0xffff
typedef /*@abstract@*/ struct DIGEST_CTX_s * DIGEST_CTX;
@@ -429,7 +432,9 @@ FD_t c2f(/*@null@*/ void * cookie)
void fdInitMD5(FD_t fd, int flags)
/*@modifies fd @*/
{
+#ifdef DYING
if (flags) flags = RPMDIGEST_REVERSE;
+#endif
flags |= RPMDIGEST_MD5;
fd->digest = rpmDigestInit(flags);
}
@@ -440,7 +445,9 @@ void fdInitMD5(FD_t fd, int flags)
void fdInitSHA1(FD_t fd, int flags)
/*@modifies fd @*/
{
+#ifdef DYING
if (flags) flags = RPMDIGEST_REVERSE;
+#endif
flags |= RPMDIGEST_SHA1;
fd->digest = rpmDigestInit(flags);
}
diff --git a/rpmio/tdigest.c b/rpmio/tdigest.c
index e268370aa..ab9627ef2 100644
--- a/rpmio/tdigest.c
+++ b/rpmio/tdigest.c
@@ -1,15 +1,6 @@
-#define ENABLE_BEECRYPT 1
-
#include "system.h"
#include "rpmio_internal.h"
#include "popt.h"
-#ifdef ENABLE_BEECRYPT
-#define BEEDLLAPI
-#include "beecrypt.h"
-#include "md5.h"
-#include "fips180.h"
-#include "sha256.h"
-#endif
#include "debug.h"
@@ -25,7 +16,9 @@ const char * FIPSCdigest = "34aa973cd4c4daa4f61eeb2bdbad27316534016f";
static struct poptOption optionsTable[] = {
{ "md5", '\0', POPT_BIT_SET, &flags, RPMDIGEST_MD5, NULL, NULL },
{ "sha1",'\0', POPT_BIT_SET, &flags, RPMDIGEST_SHA1, NULL, NULL },
+#ifdef DYING
{ "reverse",'\0', POPT_BIT_SET, &flags, RPMDIGEST_REVERSE, NULL, NULL },
+#endif
{ "fipsa",'\0', POPT_BIT_SET, &fips, 1, NULL, NULL },
{ "fipsb",'\0', POPT_BIT_SET, &fips, 2, NULL, NULL },
{ "fipsc",'\0', POPT_BIT_SET, &fips, 3, NULL, NULL },
@@ -51,31 +44,22 @@ main(int argc, const char *argv[])
const char * digest;
size_t digestlen;
int asAscii = 1;
- int reverse;
+ int reverse = 0;
int rc;
char appendix;
int i;
-#ifdef ENABLE_BEECRYPT
- sha1Param sparam;
- md5Param mparam;
- uint32 bdigest[5];
-
- memset(&sparam, 0, sizeof(sparam));
- memset(&mparam, 0, sizeof(mparam));
-#endif
optCon = poptGetContext(argv[0], argc, argv, optionsTable, 0);
while ((rc = poptGetNextOpt(optCon)) > 0)
;
if (flags & RPMDIGEST_SHA1) flags &= ~RPMDIGEST_MD5;
+#ifdef DYING
reverse = (flags & RPMDIGEST_REVERSE);
+#endif
if (fips) {
flags &= ~RPMDIGEST_MD5;
flags |= RPMDIGEST_SHA1;
-#ifdef ENABLE_BEECRYPT
- (void) sha1Reset(&sparam);
-#endif
ctx = rpmDigestInit(flags);
ifn = NULL;
appendix = ' ';
@@ -83,39 +67,26 @@ main(int argc, const char *argv[])
switch (fips) {
case 1:
ifn = "abc";
-#ifdef ENABLE_BEECRYPT
- (void) sha1Update(&sparam, (const unsigned char*) ifn, strlen(ifn));
-#endif
rpmDigestUpdate(ctx, ifn, strlen(ifn));
sdigest = FIPSAdigest;
appendix = 'A';
break;
case 2:
ifn = "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq";
-#ifdef ENABLE_BEECRYPT
- (void) sha1Update(&sparam, (const unsigned char*) ifn, strlen(ifn));
-#endif
rpmDigestUpdate(ctx, ifn, strlen(ifn));
sdigest = FIPSBdigest;
appendix = 'B';
break;
case 3:
ifn = "aaaaaaaaaaa ...";
- for (i = 0; i < 1000000; i++) {
-#ifdef ENABLE_BEECRYPT
- (void) sha1Update(&sparam, (const unsigned char*) ifn, 1);
-#endif
+ for (i = 0; i < 1000000; i++)
rpmDigestUpdate(ctx, ifn, 1);
- }
sdigest = FIPSCdigest;
appendix = 'C';
break;
}
if (ifn == NULL)
return 1;
-#ifdef ENABLE_BEECRYPT
- (void) sha1Digest(&sparam, bdigest);
-#endif
rpmDigestFinal(ctx, (void **)&digest, &digestlen, asAscii);
if (digest) {
@@ -123,11 +94,6 @@ main(int argc, const char *argv[])
fflush(stdout);
free((void *)digest);
}
-#ifdef ENABLE_BEECRYPT
- for (i = 0; i < 5; i++)
- fprintf(stdout, "%08x", bdigest[i]);
- fprintf(stdout, " BeeCrypt\n");
-#endif
if (sdigest) {
fprintf(stdout, "%s FIPS PUB 180-1 Appendix %c\n", sdigest,
appendix);
@@ -184,19 +150,9 @@ main(int argc, const char *argv[])
odigest = NULL;
(flags & RPMDIGEST_SHA1) ? fdInitSHA1(ofd, reverse) : fdInitMD5(ofd, reverse);
-#ifdef ENABLE_BEECRYPT
- (flags & RPMDIGEST_SHA1)
- ? (void) sha1Reset(&sparam)
- : (void) md5Reset(&mparam);
-#endif
ctx = rpmDigestInit(flags);
while ((nb = Fread(buf, 1, sizeof(buf), ifd)) > 0) {
-#ifdef ENABLE_BEECRYPT
- (flags & RPMDIGEST_SHA1)
- ? (void) sha1Update(&sparam, (const unsigned char*) buf, nb)
- : (void) md5Update(&mparam, (const unsigned char*) buf, nb);
-#endif
rpmDigestUpdate(ctx, buf, nb);
(void) Fwrite(buf, 1, nb, ofd);
}
@@ -212,22 +168,10 @@ main(int argc, const char *argv[])
: fdFiniMD5(ofd, (void **)&odigest, NULL, asAscii);
Fclose(ofd);
-#ifdef ENABLE_BEECRYPT
- (flags & RPMDIGEST_SHA1)
- ? (void) sha1Digest(&sparam, bdigest)
- : (void) md5Digest(&mparam, bdigest);
-#endif
rpmDigestFinal(ctx, (void **)&digest, &digestlen, asAscii);
if (digest) {
fprintf(stdout, "%s %s\n", digest, ifn);
-#ifdef ENABLE_BEECRYPT
- { int imax = (flags & RPMDIGEST_SHA1) ? 5 : 4;
- for (i = 0; i < imax; i++)
- fprintf(stdout, "%08x", bdigest[i]);
- }
- fprintf(stdout, " BeeCrypt\n");
-#endif
fflush(stdout);
free((void *)digest);
}