test_hash.c

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/* ==================================================================== 
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 * Portions of this software are based upon software originally written at  
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 */ 

/*
 * test_hash.c - test MD5 and SHA1 routines.
 *
 * Stipe Tolj <stolj at kannel dot org>
 */

#include <string.h>
#include <unistd.h>
#include <signal.h>

#include "gwlib/gwlib.h"

#ifdef HAVE_LIBSSL
#if OPENSSL_VERSION_NUMBER < 0x10100000L
static Octstr *our_hash_func(Octstr *os)
{
    /* use openssl's SHA1 */
    EVP_MD_CTX mdctx;
    const EVP_MD *md;
    unsigned char md_value[EVP_MAX_MD_SIZE];
    unsigned int md_len;

    md = EVP_get_digestbyname("sha1");

    EVP_MD_CTX_init(&mdctx);
    EVP_DigestInit_ex(&mdctx, md, NULL);
    EVP_DigestUpdate(&mdctx, octstr_get_cstr(os), octstr_len(os));
    EVP_DigestFinal_ex(&mdctx, md_value, &md_len);
    EVP_MD_CTX_cleanup(&mdctx);

    return octstr_create_from_data((char*) md_value, md_len);
}
#else
static Octstr *our_hash_func(Octstr *os)
{
    unsigned char hash[20];
    
    memset(hash, 0, sizeof(hash));
    
    SHA1((const unsigned char *)octstr_get_cstr(os), octstr_len(os), hash);
    
    return octstr_create_from_data((const char*)hash, sizeof(hash));
}
#endif
#endif


int main(int argc, char **argv)
{
    Octstr *data, *enc;

    gwlib_init();

    get_and_set_debugs(argc, argv, NULL);

    if (argc < 2)
        panic(0, "Syntax: %s <txt>\n", argv[0]);

    data = octstr_create(argv[1]);
    enc = md5(data);

    debug("",0,"MD5:");
    octstr_dump(enc, 0);

    octstr_destroy(enc);
    enc = md5digest(data);

    debug("",0,"MD5 (digest):");
    octstr_dump(enc, 0);

#ifdef HAVE_LIBSSL
    OpenSSL_add_all_digests();
    
    octstr_destroy(enc);
    enc = our_hash_func(data);

    debug("",0,"SHA1:");
    octstr_dump(enc, 0);

    octstr_binary_to_hex(enc, 0);
    debug("",0,"SHA1 (digest):");
    octstr_dump(enc, 0);
#endif

    octstr_destroy(data);
    octstr_destroy(enc);
    gwlib_shutdown();
    return 0;
}