added libtomcrypt-0.91

Author: Tom St Denis

changes

@@ -1,3 +1,12 @@
+Sept 25th, 2003
+v0.91  -- HMAC fix of 0.90 was incorrect for keys larger than the block size of the hash.
+       -- Added error CRYPT_FILE_NOTFOUND for the file [hmac/hash] routines.
+       -- Added RIPEMD hashes to the hashsum demo.
+       -- Added hashsum demo to MSVC makefile.
+       -- Added RMD160 to the x86_prof demo [oops]
+       -- Merged in LibTomMath-0.27 with a patch to mp_shrink() that will be in LibTomMath-0.28
+          Fixes another potential memory leak.
+
 Sept 7th, 2003
 v0.90  -- new ROL/ROR for x86 GCC
        -- Jochen Katz submitted a patch to the makefile to prevent "make" from making the .a library

crypt.pdf

@@ -47,7 +47,7 @@
 \def\gap{\vspace{0.5ex}}
 \makeindex
 \begin{document}
-\title{A Tiny Crypto Library, \\ LibTomCrypt \\ Version 0.90}
+\title{A Tiny Crypto Library, \\ LibTomCrypt \\ Version 0.91}
 \author{Tom St Denis \\
 Algonquin College \\
 \\

crypt.tex

@@ -64,7 +64,7 @@ int main(int argc, char **argv)
    return EXIT_SUCCESS;
 }
 
-void register_algs(void) 
+void register_algs(void)
 {
    register_hash(&sha512_desc);
    register_hash(&sha384_desc);
@@ -74,4 +74,6 @@ void register_algs(void)
    register_hash(&md4_desc);
    register_hash(&tiger_desc);
    register_hash(&md2_desc);
+   register_hash(&rmd128_desc);
+   register_hash(&rmd160_desc);
 }

demos/hashsum.c

@@ -1700,6 +1700,7 @@ test_errs (void)
   ERR (CRYPT_PK_NOT_PRIVATE);
 
   ERR (CRYPT_INVALID_ARG);
+  ERR (CRYPT_FILE_NOTFOUND);
 
   ERR (CRYPT_PK_INVALID_TYPE);
   ERR (CRYPT_PK_INVALID_SYSTEM);

demos/test.c

@@ -50,20 +50,20 @@ void init_timer(void)
 {
    ulong64 c1, c2, t1, t2, t3;
    unsigned long y1;
-   
+
    c1 = c2 = (ulong64)-1;
    for (y1 = 0; y1 < TIMES*100; y1++) {
       t_start();
       t1 = t_read();
       t3 = t_read();
       t2 = t_read() - t1;
-      
+
       c1 = (c1 > t1) ? t1 : c1;
       c2 = (c2 > t2) ? t2 : c2;
    }
    skew = c2 - c1;
    printf("Clock Skew: %lu\n", (unsigned long)skew);
-}  
+}
 
 void reg_algs(void)
 {
@@ -135,6 +135,9 @@ void reg_algs(void)
 #ifdef RIPEMD128
   register_hash (&rmd128_desc);
 #endif
+#ifdef RIPEMD160
+  register_hash (&rmd160_desc);
+#endif
 
 }
 
@@ -166,7 +169,7 @@ int time_keysched(void)
 
 #undef DO1
    }
-   
+
    return 0;
 }
 
@@ -196,13 +199,13 @@ int time_cipher(void)
         DO2;
         t2 = t_read();
         t2 -= t1;
-        
+
         c1 = (t1 > c1 ? c1 : t1);
         c2 = (t2 > c2 ? c2 : t2);
     }
     a1 = c2 - c1 - skew;
-        
-        
+
+
     func = cipher_descriptor[x].ecb_decrypt;
     c1 = c2 = (ulong64)-1;
     for (y1 = 0; y1 < TIMES; y1++) {
@@ -212,19 +215,19 @@ int time_cipher(void)
         DO2;
         t2 = t_read();
         t2 -= t1;
-        
+
         c1 = (t1 > c1 ? c1 : t1);
         c2 = (t2 > c2 ? c2 : t2);
     }
     a2 = c2 - c1 - skew;
-    
+
     printf
       ("%-20s: Encrypt at %7.3f, Decrypt at %7.3f\n", cipher_descriptor[x].name, a1/(double)cipher_descriptor[x].block_length, a2/(double)cipher_descriptor[x].block_length);
 
 #undef DO2
 #undef DO1
    }
-   
+
    return 0;
 }
 
@@ -236,7 +239,7 @@ int time_hash(void)
   void    (*func)(hash_state *, const unsigned char *, unsigned long);
   unsigned char pt[MAXBLOCKSIZE];
 
- 
+
   printf ("\n\nHASH Time Trials for:\n");
   for (x = 0; hash_descriptor[x].name != NULL; x++) {
     hash_descriptor[x].init(&md);
@@ -246,7 +249,7 @@ int time_hash(void)
 
     func = hash_descriptor[x].process;
     len  = hash_descriptor[x].blocksize;
-    
+
     c1 = c2 = (ulong64)-1;
     for (y1 = 0; y1 < TIMES; y1++) {
        t_start();
@@ -257,16 +260,16 @@ int time_hash(void)
        c1 = (t1 > c1) ? c1 : t1;
        c2 = (t2 > c2) ? c2 : t2;
     }
-    t1 = c2 - c1 - skew;   
+    t1 = c2 - c1 - skew;
     t1 = ((t1 * CONST64(1000))) / ((ulong64)hash_descriptor[x].blocksize);
-    
+
     printf
       ("%-20s: Process at %9.3f\n", hash_descriptor[x].name, t1 / 1000.0);
 
 #undef DO2
 #undef DO1
    }
-   
+
    return 0;
 }
 
@@ -275,12 +278,12 @@ int main(void)
   reg_algs();
 
   printf("Timings for ciphers and hashes.  Times are listed as cycles per byte processed.\n\n");
-  
+
 //  init_timer();
   time_cipher();
   time_keysched();
   time_hash();
-  
+
   return EXIT_SUCCESS;
-}  
+}
 

demos/x86_prof.c

@@ -78,16 +78,12 @@ int hash_file(int hash, const char *fname, unsigned char *dst, unsigned long *ou
 
     in = fopen(fname, "rb");
     if (in == NULL) { 
-       return CRYPT_INVALID_ARG;
+       return CRYPT_FILE_NOTFOUND;
     }
 
-    if ((err = hash_filehandle(hash, in, dst, outlen)) != CRYPT_OK) {
-       (void)fclose(in);
-       return err;
-    }
+    err = hash_filehandle(hash, in, dst, outlen);
     (void)fclose(in);
-
-    return CRYPT_OK;
+    return err;
 #endif
 }
 

hash.c

@@ -38,7 +38,7 @@ int hmac_init(hmac_state *hmac, int hash, const unsigned char *key, unsigned lon
     }
 
     /* valid key length? */
-    if (keylen == 0 || keylen > MAXBLOCKSIZE) {
+    if (keylen == 0) {
         return CRYPT_INVALID_KEYSIZE;
     }
 
@@ -54,6 +54,7 @@ int hmac_init(hmac_state *hmac, int hash, const unsigned char *key, unsigned lon
         if(hashsize < HMAC_BLOCKSIZE) {
             zeromem((hmac->key) + hashsize, (size_t)(HMAC_BLOCKSIZE - hashsize));
         }
+        keylen = hashsize;
     } else {
         memcpy(hmac->key, key, (size_t)keylen);
         if(keylen < HMAC_BLOCKSIZE) {
@@ -62,14 +63,10 @@ int hmac_init(hmac_state *hmac, int hash, const unsigned char *key, unsigned lon
     }
 
     // Create the initial vector for step (3)
-    for(i=0; i < keylen;   i++) {
+    for(i=0; i < HMAC_BLOCKSIZE;   i++) {
        buf[i] = hmac->key[i] ^ 0x36;
     }
 
-    for(   ; i < HMAC_BLOCKSIZE; i++) { 
-       buf[i] = 0x36;
-    }
-
     // Pre-pend that to the hash data
     hash_descriptor[hash].init(&hmac->md);
     hash_descriptor[hash].process(&hmac->md, buf, HMAC_BLOCKSIZE);
@@ -126,6 +123,8 @@ int hmac_done(hmac_state *hmac, unsigned char *hashOut, unsigned long *outlen)
     hash_descriptor[hash].done(&hmac->md, hashOut);
 
 #ifdef CLEAN_STACK
+    zeromem(isha, sizeof(buf));
+    zeromem(buf,  sizeof(isha));
     zeromem(hmac->key, sizeof(hmac->key));
 #endif
     return CRYPT_OK;
@@ -188,7 +187,7 @@ int hmac_file(int hash, const char *fname, const unsigned char *key,
 
    in = fopen(fname, "rb");
    if (in == NULL) {
-      return CRYPT_INVALID_ARG;
+      return CRYPT_FILE_NOTFOUND;
    }
 
    /* process the file contents */

hmac.c

@@ -9,7 +9,7 @@
 # a build. This is easy to remedy though, for those that have problems.
 
 # The version
-VERSION=0.90
+VERSION=0.91
 
 #ch1-01-1
 # Compiler and Linker Names

makefile

@@ -26,3 +26,6 @@ x86_prof: demos/x86_prof.c library
 
 tv_gen: demos/tv_gen.c library
 	cl $(CFLAGS) demos/tv_gen.c tomcrypt.lib advapi32.lib 
+
+hashsum: demos/hashsum.c library
+	cl $(CFLAGS) demos/hashsum.c tomcrypt.lib advapi32.lib