removed MD5 hash functions

5 files changed, 0 insertions, 394 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
index 2f900a3..15231bc 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -83,7 +83,6 @@ libpers_common_la_SOURCES += \
                               ../src/key-value-store/pers_low_level_db_access.c \
                               ../src/key-value-store/crc32.c \
                               ../src/key-value-store/database/kissdb.c \
-                              ../src/key-value-store/hashtable/md5c.c \
                               ../src/key-value-store/hashtable/qhash.c \
                               ../src/key-value-store/hashtable/qhasharr.c
 endif
diff --git a/src/key-value-store/hashtable/md5.h b/src/key-value-store/hashtable/md5.h
deleted file mode 100644
index cfcf6c6..0000000
--- a/src/key-value-store/hashtable/md5.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
- * rights reserved.
- *
- * License to copy and use this software is granted provided that it
- * is identified as the "RSA Data Security, Inc. MD5 Message-Digest
- * Algorithm" in all material mentioning or referencing this software
- * or this function.
- *
- * License is also granted to make and use derivative works provided
- * that such works are identified as "derived from the RSA Data
- * Security, Inc. MD5 Message-Digest Algorithm" in all material
- * mentioning or referencing the derived work.
- *
- * RSA Data Security, Inc. makes no representations concerning either
- * the merchantability of this software or the suitability of this
- * software for any particular purpose. It is provided "as is"
- * without express or implied warranty of any kind.
- *
- * These notices must be retained in any copies of any part of this
- * documentation and/or software.
- */
-
-#ifndef _Q_MD5_H_
-#define _Q_MD5_H_
-
-#define MD5_BLOCK_LENGTH		64
-#define MD5_DIGEST_LENGTH		16
-#define MD5_DIGEST_STRING_LENGTH	(MD5_DIGEST_LENGTH * 2 + 1)
-
-/* MD5 context. */
-typedef struct MD5Context {
-    u_int32_t state[4]; /* state (ABCD) */
-    u_int32_t count[2]; /* number of bits, modulo 2^64 (lsb first) */
-    unsigned char buffer[64]; /* input buffer */
-} MD5_CTX;
-
-#include <sys/cdefs.h>
-
-__BEGIN_DECLS
-void MD5Init(MD5_CTX *);
-void MD5Update(MD5_CTX *, const unsigned char *, unsigned int);
-void MD5Final(unsigned char[16], MD5_CTX *);
-char * MD5End(MD5_CTX *, char *);
-char * MD5File(const char *, char *);
-char * MD5FileChunk(const char *, char *, off_t, off_t);
-char * MD5Data(const unsigned char *, unsigned int, char *);
-__END_DECLS
-
-#endif /* _Q_MD5_H_ */
diff --git a/src/key-value-store/hashtable/md5c.c b/src/key-value-store/hashtable/md5c.c
deleted file mode 100644
index de9e47f..0000000
--- a/src/key-value-store/hashtable/md5c.c
+++ /dev/null
@@ -1,296 +0,0 @@
-/*
- * MD5C.C - RSA Data Security, Inc., MD5 message-digest algorithm
- *
- * Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
- * rights reserved.
- *
- * License to copy and use this software is granted provided that it
- * is identified as the "RSA Data Security, Inc. MD5 Message-Digest
- * Algorithm" in all material mentioning or referencing this software
- * or this function.
- *
- * License is also granted to make and use derivative works provided
- * that such works are identified as "derived from the RSA Data
- * Security, Inc. MD5 Message-Digest Algorithm" in all material
- * mentioning or referencing the derived work.
- *
- * RSA Data Security, Inc. makes no representations concerning either
- * the merchantability of this software or the suitability of this
- * software for any particular purpose. It is provided "as is"
- * without express or implied warranty of any kind.
- *
- * These notices must be retained in any copies of any part of this
- * documentation and/or software.
- *
- * This code is the same as the code published by RSA Inc.  It has been
- * edited for clarity and style only.
- */
-
-#include <sys/cdefs.h>
-#include <sys/types.h>
-#include <string.h>
-#include "md5.h"
-
-static void MD5Transform( u_int32_t[4], const unsigned char[64]);
-
-#if (BYTE_ORDER == LITTLE_ENDIAN)
-#define Encode memcpy
-#define Decode memcpy
-#else
-
-/*
- * Encodes input (u_int32_t) into output (unsigned char). Assumes len is
- * a multiple of 4.
- */
-
-static void Encode (unsigned char *output, u_int32_t *input, unsigned int len) {
-    unsigned int i;
-    u_int32_t *op = (u_int32_t *)output;
-
-    for (i = 0; i < len / 4; i++)
-    op[i] = htole32(input[i]);
-}
-
-/*
- * Decodes input (unsigned char) into output (u_int32_t). Assumes len is
- * a multiple of 4.
- */
-
-static void Decode (u_int32_t *output, const unsigned char *input, unsigned int len) {
-    unsigned int i;
-    const u_int32_t *ip = (const u_int32_t *)input;
-
-    for (i = 0; i < len / 4; i++)
-    output[i] = le32toh(ip[i]);
-}
-#endif
-
-static unsigned char PADDING[64] = { 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0 };
-
-/* F, G, H and I are basic MD5 functions. */
-#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
-#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
-#define H(x, y, z) ((x) ^ (y) ^ (z))
-#define I(x, y, z) ((y) ^ ((x) | (~z)))
-
-/* ROTATE_LEFT rotates x left n bits. */
-#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
-
-/*
- * FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
- * Rotation is separate from addition to prevent recomputation.
- */
-#define FF(a, b, c, d, x, s, ac) { \
-    (a) += F ((b), (c), (d)) + (x) + (u_int32_t)(ac); \
-    (a) = ROTATE_LEFT ((a), (s)); \
-    (a) += (b); \
-    }
-#define GG(a, b, c, d, x, s, ac) { \
-    (a) += G ((b), (c), (d)) + (x) + (u_int32_t)(ac); \
-    (a) = ROTATE_LEFT ((a), (s)); \
-    (a) += (b); \
-    }
-#define HH(a, b, c, d, x, s, ac) { \
-    (a) += H ((b), (c), (d)) + (x) + (u_int32_t)(ac); \
-    (a) = ROTATE_LEFT ((a), (s)); \
-    (a) += (b); \
-    }
-#define II(a, b, c, d, x, s, ac) { \
-    (a) += I ((b), (c), (d)) + (x) + (u_int32_t)(ac); \
-    (a) = ROTATE_LEFT ((a), (s)); \
-    (a) += (b); \
-    }
-
-/* MD5 initialization. Begins an MD5 operation, writing a new context. */
-
-void MD5Init(MD5_CTX *context) {
-
-    context->count[0] = context->count[1] = 0;
-
-    /* Load magic initialization constants.  */
-    context->state[0] = 0x67452301;
-    context->state[1] = 0xefcdab89;
-    context->state[2] = 0x98badcfe;
-    context->state[3] = 0x10325476;
-}
-
-/*
- * MD5 block update operation. Continues an MD5 message-digest
- * operation, processing another message block, and updating the
- * context.
- */
-
-void MD5Update(MD5_CTX *context, const unsigned char *input,
-               unsigned int inputLen) {
-    unsigned int i, idx, partLen;
-
-    /* Compute number of bytes mod 64 */
-    idx = (unsigned int) ((context->count[0] >> 3) & 0x3F);
-
-    /* Update number of bits */
-    if ((context->count[0] += ((u_int32_t) inputLen << 3))
-            < ((u_int32_t) inputLen << 3))
-        context->count[1]++;
-    context->count[1] += ((u_int32_t) inputLen >> 29);
-
-    partLen = 64 - idx;
-
-    /* Transform as many times as possible. */
-    if (inputLen >= partLen) {
-        memcpy((void *) &context->buffer[idx], (const void *) input, partLen);
-        MD5Transform(context->state, context->buffer);
-
-        for (i = partLen; i + 63 < inputLen; i += 64)
-            MD5Transform(context->state, &input[i]);
-
-        idx = 0;
-    } else
-        i = 0;
-
-    /* Buffer remaining input */
-    memcpy((void *) &context->buffer[idx], (const void *) &input[i],
-           inputLen - i);
-}
-
-/*
- * MD5 padding. Adds padding followed by original length.
- */
-
-static void MD5Pad(MD5_CTX *context) {
-    unsigned char bits[8];
-    unsigned int idx, padLen;
-
-    /* Save number of bits */
-    Encode(bits, context->count, 8);
-
-    /* Pad out to 56 mod 64. */
-    idx = (unsigned int) ((context->count[0] >> 3) & 0x3f);
-    padLen = (idx < 56) ? (56 - idx) : (120 - idx);
-    MD5Update(context, PADDING, padLen);
-
-    /* Append length (before padding) */
-    MD5Update(context, bits, 8);
-}
-
-/*
- * MD5 finalization. Ends an MD5 message-digest operation, writing the
- * the message digest and zeroizing the context.
- */
-
-void MD5Final(unsigned char digest[16], MD5_CTX *context) {
-    /* Do padding. */
-    MD5Pad(context);
-
-    /* Store state in digest */
-    Encode(digest, context->state, 16);
-
-    /* Zeroize sensitive information. */
-    memset((void *) context, 0, sizeof(*context));
-}
-
-/* MD5 basic transformation. Transforms state based on block. */
-
-static void MD5Transform(u_int32_t state[4], const unsigned char block[64]) {
-    u_int32_t a = state[0], b = state[1], c = state[2], d = state[3], x[16];
-
-    Decode(x, block, 64);
-
-    /* Round 1 */
-#define S11 7
-#define S12 12
-#define S13 17
-#define S14 22
-    FF(a, b, c, d, x[0], S11, 0xd76aa478); /* 1 */
-    FF(d, a, b, c, x[1], S12, 0xe8c7b756); /* 2 */
-    FF(c, d, a, b, x[2], S13, 0x242070db); /* 3 */
-    FF(b, c, d, a, x[3], S14, 0xc1bdceee); /* 4 */
-    FF(a, b, c, d, x[4], S11, 0xf57c0faf); /* 5 */
-    FF(d, a, b, c, x[5], S12, 0x4787c62a); /* 6 */
-    FF(c, d, a, b, x[6], S13, 0xa8304613); /* 7 */
-    FF(b, c, d, a, x[7], S14, 0xfd469501); /* 8 */
-    FF(a, b, c, d, x[8], S11, 0x698098d8); /* 9 */
-    FF(d, a, b, c, x[9], S12, 0x8b44f7af); /* 10 */
-    FF(c, d, a, b, x[10], S13, 0xffff5bb1); /* 11 */
-    FF(b, c, d, a, x[11], S14, 0x895cd7be); /* 12 */
-    FF(a, b, c, d, x[12], S11, 0x6b901122); /* 13 */
-    FF(d, a, b, c, x[13], S12, 0xfd987193); /* 14 */
-    FF(c, d, a, b, x[14], S13, 0xa679438e); /* 15 */
-    FF(b, c, d, a, x[15], S14, 0x49b40821); /* 16 */
-
-    /* Round 2 */
-#define S21 5
-#define S22 9
-#define S23 14
-#define S24 20
-    GG(a, b, c, d, x[1], S21, 0xf61e2562); /* 17 */
-    GG(d, a, b, c, x[6], S22, 0xc040b340); /* 18 */
-    GG(c, d, a, b, x[11], S23, 0x265e5a51); /* 19 */
-    GG(b, c, d, a, x[0], S24, 0xe9b6c7aa); /* 20 */
-    GG(a, b, c, d, x[5], S21, 0xd62f105d); /* 21 */
-    GG(d, a, b, c, x[10], S22, 0x2441453); /* 22 */
-    GG(c, d, a, b, x[15], S23, 0xd8a1e681); /* 23 */
-    GG(b, c, d, a, x[4], S24, 0xe7d3fbc8); /* 24 */
-    GG(a, b, c, d, x[9], S21, 0x21e1cde6); /* 25 */
-    GG(d, a, b, c, x[14], S22, 0xc33707d6); /* 26 */
-    GG(c, d, a, b, x[3], S23, 0xf4d50d87); /* 27 */
-    GG(b, c, d, a, x[8], S24, 0x455a14ed); /* 28 */
-    GG(a, b, c, d, x[13], S21, 0xa9e3e905); /* 29 */
-    GG(d, a, b, c, x[2], S22, 0xfcefa3f8); /* 30 */
-    GG(c, d, a, b, x[7], S23, 0x676f02d9); /* 31 */
-    GG(b, c, d, a, x[12], S24, 0x8d2a4c8a); /* 32 */
-
-    /* Round 3 */
-#define S31 4
-#define S32 11
-#define S33 16
-#define S34 23
-    HH(a, b, c, d, x[5], S31, 0xfffa3942); /* 33 */
-    HH(d, a, b, c, x[8], S32, 0x8771f681); /* 34 */
-    HH(c, d, a, b, x[11], S33, 0x6d9d6122); /* 35 */
-    HH(b, c, d, a, x[14], S34, 0xfde5380c); /* 36 */
-    HH(a, b, c, d, x[1], S31, 0xa4beea44); /* 37 */
-    HH(d, a, b, c, x[4], S32, 0x4bdecfa9); /* 38 */
-    HH(c, d, a, b, x[7], S33, 0xf6bb4b60); /* 39 */
-    HH(b, c, d, a, x[10], S34, 0xbebfbc70); /* 40 */
-    HH(a, b, c, d, x[13], S31, 0x289b7ec6); /* 41 */
-    HH(d, a, b, c, x[0], S32, 0xeaa127fa); /* 42 */
-    HH(c, d, a, b, x[3], S33, 0xd4ef3085); /* 43 */
-    HH(b, c, d, a, x[6], S34, 0x4881d05); /* 44 */
-    HH(a, b, c, d, x[9], S31, 0xd9d4d039); /* 45 */
-    HH(d, a, b, c, x[12], S32, 0xe6db99e5); /* 46 */
-    HH(c, d, a, b, x[15], S33, 0x1fa27cf8); /* 47 */
-    HH(b, c, d, a, x[2], S34, 0xc4ac5665); /* 48 */
-
-    /* Round 4 */
-#define S41 6
-#define S42 10
-#define S43 15
-#define S44 21
-    II(a, b, c, d, x[0], S41, 0xf4292244); /* 49 */
-    II(d, a, b, c, x[7], S42, 0x432aff97); /* 50 */
-    II(c, d, a, b, x[14], S43, 0xab9423a7); /* 51 */
-    II(b, c, d, a, x[5], S44, 0xfc93a039); /* 52 */
-    II(a, b, c, d, x[12], S41, 0x655b59c3); /* 53 */
-    II(d, a, b, c, x[3], S42, 0x8f0ccc92); /* 54 */
-    II(c, d, a, b, x[10], S43, 0xffeff47d); /* 55 */
-    II(b, c, d, a, x[1], S44, 0x85845dd1); /* 56 */
-    II(a, b, c, d, x[8], S41, 0x6fa87e4f); /* 57 */
-    II(d, a, b, c, x[15], S42, 0xfe2ce6e0); /* 58 */
-    II(c, d, a, b, x[6], S43, 0xa3014314); /* 59 */
-    II(b, c, d, a, x[13], S44, 0x4e0811a1); /* 60 */
-    II(a, b, c, d, x[4], S41, 0xf7537e82); /* 61 */
-    II(d, a, b, c, x[11], S42, 0xbd3af235); /* 62 */
-    II(c, d, a, b, x[2], S43, 0x2ad7d2bb); /* 63 */
-    II(b, c, d, a, x[9], S44, 0xeb86d391); /* 64 */
-
-    state[0] += a;
-    state[1] += b;
-    state[2] += c;
-    state[3] += d;
-
-    /* Zeroize sensitive information. */
-    memset((void *) x, 0, sizeof(x));
-}
diff --git a/src/key-value-store/hashtable/qhash.c b/src/key-value-store/hashtable/qhash.c
index e7709aa..e070306 100644
--- a/src/key-value-store/hashtable/qhash.c
+++ b/src/key-value-store/hashtable/qhash.c
@@ -43,45 +43,9 @@
 #include <errno.h>
 #include <sys/types.h>
 #include <sys/stat.h>
-#include "md5.h"
 #include "qhash.h"
 
 /**
- * Calculate 128-bit(16-bytes) MD5 hash.
- *
- * @param data      source object
- * @param nbytes    size of data
- * @param retbuf    user buffer. It must be at leat 16-bytes long.
- *
- * @return true if successful, otherwise false.
- *
- * @code
- *   // get MD5
- *   unsigned char md5hash[16];
- *   qhashmd5((void*)"hello", 5, md5hash);
- *
- *   // hex encode
- *   char *md5ascii = qhex_encode(md5hash, 16);
- *   printf("Hex encoded MD5: %s\n", md5ascii);
- *   free(md5ascii);
- * @endcode
- */
-bool qhashmd5(const void *data, size_t nbytes, void *retbuf) {
-    if (data == NULL || retbuf == NULL) {
-        errno = EINVAL;
-        return false;
-    }
-
-    MD5_CTX context;
-    MD5Init(&context);
-    MD5Update(&context, (unsigned char *) data, (unsigned int) nbytes);
-    MD5Final(retbuf, &context);
-
-    return true;
-}
-
-
-/**
  * Get 32-bit Murmur3 hash.
  *
  * @param data      source data
diff --git a/src/key-value-store/hashtable/qhasharr.c b/src/key-value-store/hashtable/qhasharr.c
index 3602e84..4075687 100644
--- a/src/key-value-store/hashtable/qhasharr.c
+++ b/src/key-value-store/hashtable/qhasharr.c
@@ -655,14 +655,6 @@ static int _get_idx(qhasharr_t *tbl, const char *key, unsigned int hash) {
                         {
                             return idx;
                         }
-                    } else {
-                        // key is truncated, compare MD5 also.
-                        unsigned char keymd5[16];
-                        qhashmd5(key, keylen, keymd5);
-                        if (!memcmp(key, data->slots[idx].data.pair.key, _Q_HASHARR_KEYSIZE) && !memcmp(keymd5, data->slots[idx].data.pair.keymd5, 16))
-                        {
-                            return idx;
-                        }
                     }
                 }
             }
@@ -741,14 +733,11 @@ static bool _put_data(qhasharr_t *tbl, int idx, unsigned int hash,
     }
 
     size_t keylen = strlen(key);
-    unsigned char keymd5[16];
-    qhashmd5(key, keylen, keymd5);
 
     // store key
     data->slots[idx].count = count;
     data->slots[idx].hash = hash;
     strncpy(data->slots[idx].data.pair.key, key, _Q_HASHARR_KEYSIZE);
-    memcpy((char *) data->slots[idx].data.pair.keymd5, (char *) keymd5, 16);
     data->slots[idx].data.pair.keylen = keylen;
     data->slots[idx].link = -1;