base64t.c

Netscape NSPR库源码

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/MPL/
 * 
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 * 
 * The Original Code is the Netscape Portable Runtime (NSPR).
 * 
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are 
 * Copyright (C) 1998-2000 Netscape Communications Corporation.  All
 * Rights Reserved.
 * 
 * Contributor(s):
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL"), in which case the provisions of the GPL are applicable 
 * instead of those above.  If you wish to allow use of your 
 * version of this file only under the terms of the GPL and not to
 * allow others to use your version of this file under the MPL,
 * indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by
 * the GPL.  If you do not delete the provisions above, a recipient
 * may use your version of this file under either the MPL or the
 * GPL.
 */

#include "plbase64.h"
#include "plstr.h"
#include "nspr.h"

#include <stdio.h>

static unsigned char *base = (unsigned char *)"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

/* PL_Base64Encode, single characters */
PRBool test_001(void)
{
    PRUint32 a, b;
    unsigned char plain[ 4 ];
    unsigned char cypher[ 5 ];
    char result[ 8 ];
    char *rv;

    printf("Test 001 (PL_Base64Encode, single characters)                         ..."); fflush(stdout);

    plain[1] = plain[2] = plain[3] = (unsigned char)0;
    cypher[2] = cypher[3] = (unsigned char)'=';
    cypher[4] = (unsigned char)0;

    for( a = 0; a < 64; a++ )
    {
        cypher[0] = base[a];

        for( b = 0; b < 4; b++ )
        {
            plain[0] = (unsigned char)(a * 4 + b);
            cypher[1] = base[(b * 16)];

            rv = PL_Base64Encode((char *)plain, 1, result);
            if( rv != result )
            {
                printf("FAIL\n\t(%d, %d): return value\n", a, b);
                return PR_FALSE;
            }

            if( 0 != PL_strncmp((char *)cypher, result, 4) )
            {
                printf("FAIL\n\t(%d, %d): expected \"%s,\" got \"%.4s.\"\n",
                       a, b, cypher, result);
                return PR_FALSE;
            }
        }
    }

    printf("PASS\n");
    return PR_TRUE;
}

/* PL_Base64Encode, double characters */
PRBool test_002(void)
{
    PRUint32 a, b, c, d;
    unsigned char plain[ 4 ];
    unsigned char cypher[ 5 ];
    char result[ 8 ];
    char *rv;

    printf("Test 002 (PL_Base64Encode, double characters)                         ..."); fflush(stdout);

    plain[2] = plain[3] = (unsigned char)0;
    cypher[3] = (unsigned char)'=';
    cypher[4] = (unsigned char)0;

    for( a = 0; a < 64; a++ )
    {
        cypher[0] = base[a];
        for( b = 0; b < 4; b++ )
        {
            plain[0] = (a*4) + b;
            for( c = 0; c < 16; c++ )
            {
                cypher[1] = base[b*16 + c];
                for( d = 0; d < 16; d++ )
                {
                    plain[1] = c*16 + d;
                    cypher[2] = base[d*4];

                    rv = PL_Base64Encode((char *)plain, 2, result);
                    if( rv != result )
                    {
                        printf("FAIL\n\t(%d, %d, %d, %d): return value\n", a, b, c, d);
                        return PR_FALSE;
                    }

                    if( 0 != PL_strncmp((char *)cypher, result, 4) )
                    {
                        printf("FAIL\n\t(%d, %d, %d, %d): expected \"%s,\" got \"%.4s.\"\n",
                               a, b, c, d, cypher, result);
                        return PR_FALSE;
                    }
                }
            }
        }
    }

    printf("PASS\n");
    return PR_TRUE;
}

/* PL_Base64Encode, triple characters */
PRBool test_003(void)
{
    PRUint32 a, b, c, d, e, f;
    unsigned char plain[ 4 ];
    unsigned char cypher[ 5 ];
    char result[ 8 ];
    char *rv;

    printf("Test 003 (PL_Base64Encode, triple characters)                         ..."); fflush(stdout);

    cypher[4] = (unsigned char)0;

    for( a = 0; a < 64; a++ )
    {
        cypher[0] = base[a];
        for( b = 0; b < 4; b++ )
        {
            plain[0] = (a*4) + b;
            for( c = 0; c < 16; c++ )
            {
                cypher[1] = base[b*16 + c];
                for( d = 0; d < 16; d++ )
                {
                    plain[1] = c*16 + d;
                    for( e = 0; e < 4; e++ )
                    {
                        cypher[2] = base[d*4 + e];
                        for( f = 0; f < 64; f++ )
                        {
                            plain[2] = e * 64 + f;
                            cypher[3] = base[f];

                            rv = PL_Base64Encode((char *)plain, 3, result);
                            if( rv != result )
                            {
                                printf("FAIL\n\t(%d, %d, %d, %d, %d, %d): return value\n", a, b, c, d, e, f);
                                return PR_FALSE;
                            }

                            if( 0 != PL_strncmp((char *)cypher, result, 4) )
                            {
                                printf("FAIL\n\t(%d, %d, %d, %d, %d, %d): expected \"%s,\" got \"%.4s.\"\n",
                                       a, b, c, d, e, f, cypher, result);
                                return PR_FALSE;
                            }
                        }
                    }
                }
            }
        }
    }

    printf("PASS\n");
    return PR_TRUE;
}

    static struct
    {
        const char *plaintext;
        const char *cyphertext;
    } array[] =
      {
          /* Cyphertexts generated with uuenview 0.5.13 */
          { " ", "IA==" },
          { ".", "Lg==" },
          { "/", "Lw==" },
          { "C", "Qw==" },
          { "H", "SA==" },
          { "S", "Uw==" },
          { "^", "Xg==" },
          { "a", "YQ==" },
          { "o", "bw==" },
          { "t", "dA==" },

          { "AB", "QUI=" },
          { "AH", "QUg=" },
          { "AQ", "QVE=" },
          { "BD", "QkQ=" },
          { "CR", "Q1I=" },
          { "CS", "Q1M=" },
          { "DB", "REI=" },
          { "DC", "REM=" },
          { "EK", "RUs=" },
          { "ET", "RVQ=" },
          { "IM", "SU0=" },
          { "JR", "SlI=" },
          { "LO", "TE8=" },
          { "LW", "TFc=" },
          { "ML", "TUw=" },
          { "SB", "U0I=" },
          { "TO", "VE8=" },
          { "VS", "VlM=" },
          { "WP", "V1A=" },
          /* legitimate two-letter words */
          { "ad", "YWQ=" },
          { "ah", "YWg=" },
          { "am", "YW0=" },
          { "an", "YW4=" },
          { "as", "YXM=" },
          { "at", "YXQ=" },
          { "ax", "YXg=" },
          { "be", "YmU=" },
          { "by", "Ynk=" },
          { "do", "ZG8=" },
          { "go", "Z28=" },
          { "he", "aGU=" },
          { "hi", "aGk=" },
          { "if", "aWY=" },
          { "in", "aW4=" },
          { "is", "aXM=" },
          { "it", "aXQ=" },
          { "me", "bWU=" },
          { "my", "bXk=" },
          { "no", "bm8=" },
          { "of", "b2Y=" },
          { "on", "b24=" },
          { "or", "b3I=" },
          { "ox", "b3g=" },
          { "so", "c28=" },
          { "to", "dG8=" },
          { "up", "dXA=" },
          { "us", "dXM=" },
          { "we", "d2U=" },
          /* all three-letter entries in /usr/dict/words */
          { "1st", "MXN0" },
          { "2nd", "Mm5k" },
          { "3rd", "M3Jk" },
          { "4th", "NHRo" },
          { "5th", "NXRo" },
          { "6th", "NnRo" },
          { "7th", "N3Ro" },
          { "8th", "OHRo" },
          { "9th", "OXRo" },
          { "AAA", "QUFB" },
          { "AAU", "QUFV" },
          { "ABA", "QUJB" },
          { "abc", "YWJj" },
          { "Abe", "QWJl" },
          { "Abo", "QWJv" },
          { "ace", "YWNl" },
          { "ACM", "QUNN" },
          { "ACS", "QUNT" },
          { "act", "YWN0" },
          { "Ada", "QWRh" },
          { "add", "YWRk" },
          { "ado", "YWRv" },
          { "aft", "YWZ0" },
          { "age", "YWdl" },
          { "ago", "YWdv" },
          { "aid", "YWlk" },
          { "ail", "YWls" },
          { "aim", "YWlt" },
          { "air", "YWly" },
          { "ala", "YWxh" },
          { "alb", "YWxi" },
          { "ale", "YWxl" },
          { "Ali", "QWxp" },
          { "all", "YWxs" },
          { "alp", "YWxw" },
          { "A&M", "QSZN" },