int main(int argc, char *argv[])
{
int i,err=0;
unsigned char **P,**R;
static unsigned char buf[1000];
char *p,*r;
EVP_MD_CTX c;
unsigned char md[SHA_DIGEST_LENGTH];
#ifdef CHARSET_EBCDIC
ebcdic2ascii(test[0], test[0], strlen(test[0]));
ebcdic2ascii(test[1], test[1], strlen(test[1]));
#endif
EVP_MD_CTX_init(&c);
P=(unsigned char **)test;
R=(unsigned char **)ret;
i=1;
while (*P != NULL)
{
EVP_Digest(*P,(unsigned long)strlen((char *)*P),md,NULL,EVP_sha(), NULL);
p=pt(md);
if (strcmp(p,(char *)*R) != 0)
{
printf("error calculating SHA on '%s'\n",*P);
printf("got %s instead of %s\n",p,*R);
err++;
}
else
printf("test %d ok\n",i);
i++;
R++;
P++;
}
memset(buf,'a',1000);
#ifdef CHARSET_EBCDIC
ebcdic2ascii(buf, buf, 1000);
#endif /*CHARSET_EBCDIC*/
EVP_DigestInit_ex(&c,EVP_sha(), NULL);
for (i=0; i<1000; i++)
EVP_DigestUpdate(&c,buf,1000);
EVP_DigestFinal_ex(&c,md,NULL);
p=pt(md);
r=bigret;
if (strcmp(p,r) != 0)
{
printf("error calculating SHA on '%s'\n",p);
printf("got %s instead of %s\n",p,r);
err++;
}
else
printf("test 3 ok\n");
EVP_MD_CTX_cleanup(&c);
EXIT(err);
return(0);
}
EXPORT_C int SSL_library_init(void)
{
//#ifdef EMULATOR
// InitSSLWsdVar();
//#endif
#ifndef OPENSSL_NO_DES
EVP_add_cipher(EVP_des_cbc());
EVP_add_cipher(EVP_des_ede3_cbc());
#endif
#ifndef OPENSSL_NO_IDEA
EVP_add_cipher(EVP_idea_cbc());
#endif
#ifndef OPENSSL_NO_RC4
EVP_add_cipher(EVP_rc4());
#endif
#ifndef OPENSSL_NO_RC2
EVP_add_cipher(EVP_rc2_cbc());
#endif
#ifndef OPENSSL_NO_AES
EVP_add_cipher(EVP_aes_128_cbc());
EVP_add_cipher(EVP_aes_192_cbc());
EVP_add_cipher(EVP_aes_256_cbc());
#endif
#ifndef OPENSSL_NO_MD2
EVP_add_digest(EVP_md2());
#endif
#ifndef OPENSSL_NO_MD5
EVP_add_digest(EVP_md5());
EVP_add_digest_alias(SN_md5,"ssl2-md5");
EVP_add_digest_alias(SN_md5,"ssl3-md5");
#endif
#ifndef OPENSSL_NO_SHA
EVP_add_digest(EVP_sha1()); /* RSA with sha1 */
EVP_add_digest_alias(SN_sha1,"ssl3-sha1");
EVP_add_digest_alias(SN_sha1WithRSAEncryption,SN_sha1WithRSA);
#endif
#if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_DSA)
EVP_add_digest(EVP_dss1()); /* DSA with sha1 */
EVP_add_digest_alias(SN_dsaWithSHA1,SN_dsaWithSHA1_2);
EVP_add_digest_alias(SN_dsaWithSHA1,"DSS1");
EVP_add_digest_alias(SN_dsaWithSHA1,"dss1");
#endif
#ifndef OPENSSL_NO_ECDSA
EVP_add_digest(EVP_ecdsa());
#endif
/* If you want support for phased out ciphers, add the following */
#if 0
EVP_add_digest(EVP_sha());
EVP_add_digest(EVP_dss());
#endif
#ifndef OPENSSL_NO_COMP
/* This will initialise the built-in compression algorithms.
The value returned is a STACK_OF(SSL_COMP), but that can
be discarded safely */
(void)SSL_COMP_get_compression_methods();
#endif
/* initialize cipher/digest methods table */
ssl_load_ciphers();
return(1);
}
void
OpenSSL_add_all_digests(void)
{
#ifndef OPENSSL_NO_MD4
EVP_add_digest(EVP_md4());
#endif
#ifndef OPENSSL_NO_MD5
EVP_add_digest(EVP_md5());
EVP_add_digest_alias(SN_md5, "ssl2-md5");
EVP_add_digest_alias(SN_md5, "ssl3-md5");
#endif
#if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA0)
EVP_add_digest(EVP_sha());
#ifndef OPENSSL_NO_DSA
EVP_add_digest(EVP_dss());
#endif
#endif
#if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA1)
EVP_add_digest(EVP_sha1());
EVP_add_digest_alias(SN_sha1, "ssl3-sha1");
EVP_add_digest_alias(SN_sha1WithRSAEncryption, SN_sha1WithRSA);
#ifndef OPENSSL_NO_DSA
EVP_add_digest(EVP_dss1());
EVP_add_digest_alias(SN_dsaWithSHA1, SN_dsaWithSHA1_2);
EVP_add_digest_alias(SN_dsaWithSHA1, "DSS1");
EVP_add_digest_alias(SN_dsaWithSHA1, "dss1");
#endif
#ifndef OPENSSL_NO_ECDSA
EVP_add_digest(EVP_ecdsa());
#endif
#endif
#ifndef OPENSSL_NO_GOST
EVP_add_digest(EVP_gostr341194());
EVP_add_digest(EVP_gost2814789imit());
EVP_add_digest(EVP_streebog256());
EVP_add_digest(EVP_streebog512());
#endif
#if !defined(OPENSSL_NO_MDC2) && !defined(OPENSSL_NO_DES)
EVP_add_digest(EVP_mdc2());
#endif
#ifndef OPENSSL_NO_RIPEMD
EVP_add_digest(EVP_ripemd160());
EVP_add_digest_alias(SN_ripemd160, "ripemd");
EVP_add_digest_alias(SN_ripemd160, "rmd160");
#endif
#ifndef OPENSSL_NO_SHA256
EVP_add_digest(EVP_sha224());
EVP_add_digest(EVP_sha256());
#endif
#ifndef OPENSSL_NO_SHA512
EVP_add_digest(EVP_sha384());
EVP_add_digest(EVP_sha512());
#endif
#ifndef OPENSSL_NO_WHIRLPOOL
EVP_add_digest(EVP_whirlpool());
#endif
}
bool OpensslManager::HMACString(Openssl_Hash algorithm, char *key, int key_len, unsigned char *input, int input_len, unsigned char *output, unsigned int *outlength)
{
switch(algorithm)
{
case Openssl_Hash_MD5:
HMAC(EVP_md5(), key, key_len, input, input_len, output, outlength);
return true;
case Openssl_Hash_MD4:
HMAC(EVP_md4(), key, key_len, input, input_len, output, outlength);
return true;
case Openssl_Hash_SHA:
HMAC(EVP_sha(), key, key_len, input, input_len, output, outlength);
return true;
case Openssl_Hash_SHA1:
HMAC(EVP_sha1(), key, key_len, input, input_len, output, outlength);
return true;
case Openssl_Hash_SHA224:
HMAC(EVP_sha224(), key, key_len, input, input_len, output, outlength);
return true;
case Openssl_Hash_SHA256:
HMAC(EVP_sha256(), key, key_len, input, input_len, output, outlength);
return true;
case Openssl_Hash_SHA384:
HMAC(EVP_sha384(), key, key_len, input, input_len, output, outlength);
return true;
case Openssl_Hash_SHA512:
HMAC(EVP_sha512(), key, key_len, input, input_len, output, outlength);
return true;
case Openssl_Hash_RIPEMD160:
HMAC(EVP_ripemd160(), key, key_len, input, input_len, output, outlength);
return true;
}
return false;
}
int main(void) {
// The Key to hash
char key[] = "A1B2C3B4C5";
// The string to hash
char data[] = "OpenSSL Hash function";
unsigned char *dgst = NULL;
char mdstr[LEN] = {0};
/* You may use many hash engines:
EVP_sha()
EVP_sha1()
EVP_sha224()
EVP_sha256()
EVP_sha384()
EVP_sha512()
In this case it is sha. */
dgst = HMAC(EVP_sha(), key, strlen(key), (unsigned char *)data, \
strlen(data), NULL, NULL);
for (int i=0; i<LEN; i++)
sprintf(&mdstr[i*2], "%02x", (unsigned int)dgst[i]);
printf("HMAC digest is: %s\n", mdstr);
return(EXIT_SUCCESS);
}
ikptr
ikrt_openssl_evp_sha (ikpcb * pcb)
{
#ifdef HAVE_EVP_SHA
const EVP_MD * rv;
rv = EVP_sha();
return ika_pointer_alloc(pcb, (long)rv);
#else
feature_failure(__func__);
#endif
}
void OpenSSL_add_all_digests(void)
{
#ifndef OPENSSL_NO_MD2
EVP_add_digest(EVP_md2());
#endif
#ifndef OPENSSL_NO_MD4
EVP_add_digest(EVP_md4());
#endif
#ifndef OPENSSL_NO_MD5
EVP_add_digest(EVP_md5());
EVP_add_digest_alias(SN_md5,"ssl2-md5");
EVP_add_digest_alias(SN_md5,"ssl3-md5");
#endif
#if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA0)
EVP_add_digest(EVP_sha());
#ifndef OPENSSL_NO_DSA
EVP_add_digest(EVP_dss());
#endif
#endif
#ifndef OPENSSL_NO_SHA
EVP_add_digest(EVP_sha1());
EVP_add_digest_alias(SN_sha1,"ssl3-sha1");
EVP_add_digest_alias(SN_sha1WithRSAEncryption,SN_sha1WithRSA);
#ifndef OPENSSL_NO_DSA
EVP_add_digest(EVP_dss1());
EVP_add_digest_alias(SN_dsaWithSHA1,SN_dsaWithSHA1_2);
EVP_add_digest_alias(SN_dsaWithSHA1,"DSS1");
EVP_add_digest_alias(SN_dsaWithSHA1,"dss1");
#endif
#ifndef OPENSSL_NO_ECDSA
EVP_add_digest(EVP_ecdsa());
#endif
#endif
#if !defined(OPENSSL_NO_MDC2) && !defined(OPENSSL_NO_DES)
EVP_add_digest(EVP_mdc2());
#endif
#ifndef OPENSSL_NO_RIPEMD
EVP_add_digest(EVP_ripemd160());
EVP_add_digest_alias(SN_ripemd160,"ripemd");
EVP_add_digest_alias(SN_ripemd160,"rmd160");
#endif
#ifndef OPENSSL_NO_SHA256
/* EVP_add_digest(EVP_sha224()); To be added later */
EVP_add_digest(EVP_sha256());
#endif
#ifndef OPENSSL_NO_SHA512
EVP_add_digest(EVP_sha384());
EVP_add_digest(EVP_sha512());
#endif
}
const EVP_MD * hb_EVP_MD_par( int iParam )
{
const EVP_MD * p;
if( HB_ISCHAR( iParam ) )
return EVP_get_digestbyname( hb_parc( iParam ) );
switch( hb_parni( iParam ) )
{
case HB_EVP_MD_MD_NULL: p = EVP_md_null(); break;
#ifndef OPENSSL_NO_MD4
case HB_EVP_MD_MD4: p = EVP_md4(); break;
#endif
#ifndef OPENSSL_NO_MD5
case HB_EVP_MD_MD5: p = EVP_md5(); break;
#endif
#ifndef OPENSSL_NO_SHA
#if OPENSSL_VERSION_NUMBER < 0x10100000L && \
! defined( LIBRESSL_VERSION_NUMBER )
case HB_EVP_MD_SHA: p = EVP_sha(); break;
#endif
case HB_EVP_MD_SHA1: p = EVP_sha1(); break;
#if OPENSSL_VERSION_NUMBER < 0x10100000L
case HB_EVP_MD_DSS: p = EVP_dss(); break;
case HB_EVP_MD_DSS1: p = EVP_dss1(); break;
#endif
#if OPENSSL_VERSION_NUMBER >= 0x00908000L && \
OPENSSL_VERSION_NUMBER < 0x10100000L
case HB_EVP_MD_ECDSA: p = EVP_ecdsa(); break;
#endif
#endif
#ifndef OPENSSL_NO_SHA256
case HB_EVP_MD_SHA224: p = EVP_sha224(); break;
case HB_EVP_MD_SHA256: p = EVP_sha256(); break;
#endif
#ifndef OPENSSL_NO_SHA512
case HB_EVP_MD_SHA384: p = EVP_sha384(); break;
case HB_EVP_MD_SHA512: p = EVP_sha512(); break;
#endif
#ifndef OPENSSL_NO_RIPEMD
case HB_EVP_MD_RIPEMD160: p = EVP_ripemd160(); break;
#endif
default: p = NULL;
}
return p;
}
int SSL_library_init(void)
{
#ifndef NO_DES
EVP_add_cipher(EVP_des_cbc());
EVP_add_cipher(EVP_des_ede3_cbc());
#endif
#ifndef NO_IDEA
EVP_add_cipher(EVP_idea_cbc());
#endif
#ifndef NO_RC4
EVP_add_cipher(EVP_rc4());
#endif
#ifndef NO_RC2
EVP_add_cipher(EVP_rc2_cbc());
#endif
#ifndef NO_MD2
EVP_add_digest(EVP_md2());
#endif
#ifndef NO_MD5
EVP_add_digest(EVP_md5());
EVP_add_digest_alias(SN_md5,"ssl2-md5");
EVP_add_digest_alias(SN_md5,"ssl3-md5");
#endif
#ifndef NO_SHA
EVP_add_digest(EVP_sha1()); /* RSA with sha1 */
EVP_add_digest_alias(SN_sha1,"ssl3-sha1");
EVP_add_digest_alias(SN_sha1WithRSAEncryption,SN_sha1WithRSA);
#endif
#if !defined(NO_SHA) && !defined(NO_DSA)
EVP_add_digest(EVP_dss1()); /* DSA with sha1 */
EVP_add_digest_alias(SN_dsaWithSHA1,SN_dsaWithSHA1_2);
EVP_add_digest_alias(SN_dsaWithSHA1,"DSS1");
EVP_add_digest_alias(SN_dsaWithSHA1,"dss1");
#endif
/* If you want support for phased out ciphers, add the following */
#if 0
EVP_add_digest(EVP_sha());
EVP_add_digest(EVP_dss());
#endif
return(1);
}
static int hb_EVP_MD_ptr_to_id( const EVP_MD * p )
{
int n;
if( p == EVP_md_null() ) n = HB_EVP_MD_MD_NULL;
#ifndef OPENSSL_NO_MD4
else if( p == EVP_md4() ) n = HB_EVP_MD_MD4;
#endif
#ifndef OPENSSL_NO_MD5
else if( p == EVP_md5() ) n = HB_EVP_MD_MD5;
#endif
#ifndef OPENSSL_NO_SHA
#if OPENSSL_VERSION_NUMBER < 0x10100000L && \
! defined( LIBRESSL_VERSION_NUMBER )
else if( p == EVP_sha() ) n = HB_EVP_MD_SHA;
#endif
else if( p == EVP_sha1() ) n = HB_EVP_MD_SHA1;
#if OPENSSL_VERSION_NUMBER < 0x10100000L
else if( p == EVP_dss() ) n = HB_EVP_MD_DSS;
else if( p == EVP_dss1() ) n = HB_EVP_MD_DSS1;
#endif
#if OPENSSL_VERSION_NUMBER >= 0x00908000L && \
OPENSSL_VERSION_NUMBER < 0x10100000L
else if( p == EVP_ecdsa() ) n = HB_EVP_MD_ECDSA;
#endif
#endif
#ifndef OPENSSL_NO_SHA256
else if( p == EVP_sha224() ) n = HB_EVP_MD_SHA224;
else if( p == EVP_sha256() ) n = HB_EVP_MD_SHA256;
#endif
#ifndef OPENSSL_NO_SHA512
else if( p == EVP_sha384() ) n = HB_EVP_MD_SHA384;
else if( p == EVP_sha512() ) n = HB_EVP_MD_SHA512;
#endif
#ifndef OPENSSL_NO_RIPEMD
else if( p == EVP_ripemd160() ) n = HB_EVP_MD_RIPEMD160;
#endif
else n = HB_EVP_MD_UNSUPPORTED;
return n;
}
static int hb_EVP_MD_ptr_to_id( const EVP_MD * p )
{
int n;
if( p == EVP_md_null() ) n = HB_EVP_MD_MD_NULL;
#ifndef OPENSSL_NO_MD2
else if( p == EVP_md2() ) n = HB_EVP_MD_MD2;
#endif
#ifndef OPENSSL_NO_MD4
else if( p == EVP_md4() ) n = HB_EVP_MD_MD4;
#endif
#ifndef OPENSSL_NO_MD5
else if( p == EVP_md5() ) n = HB_EVP_MD_MD5;
#endif
#ifndef OPENSSL_NO_SHA
else if( p == EVP_sha() ) n = HB_EVP_MD_SHA;
else if( p == EVP_sha1() ) n = HB_EVP_MD_SHA1;
else if( p == EVP_dss() ) n = HB_EVP_MD_DSS;
else if( p == EVP_dss1() ) n = HB_EVP_MD_DSS1;
#if ! defined( HB_OPENSSL_OLD_OSX_ )
else if( p == EVP_ecdsa() ) n = HB_EVP_MD_ECDSA;
#endif
#endif
#ifndef OPENSSL_NO_SHA256
else if( p == EVP_sha224() ) n = HB_EVP_MD_SHA224;
else if( p == EVP_sha256() ) n = HB_EVP_MD_SHA256;
#endif
#ifndef OPENSSL_NO_SHA512
else if( p == EVP_sha384() ) n = HB_EVP_MD_SHA384;
else if( p == EVP_sha512() ) n = HB_EVP_MD_SHA512;
#endif
#ifndef OPENSSL_NO_MDC2
else if( p == EVP_mdc2() ) n = HB_EVP_MD_MDC2;
#endif
#ifndef OPENSSL_NO_RIPEMD
else if( p == EVP_ripemd160() ) n = HB_EVP_MD_RIPEMD160;
#endif
else n = HB_EVP_MD_UNSUPPORTED;
return n;
}
static const EVP_MD *gtkhash_hash_lib_crypto_get_md(const enum hash_func_e id)
{
switch (id) {
case HASH_FUNC_MD4:
return EVP_md4();
case HASH_FUNC_MD5:
return EVP_md5();
case HASH_FUNC_SHA0:
return EVP_sha();
case HASH_FUNC_SHA1:
return EVP_sha1();
case HASH_FUNC_RIPEMD160:
return EVP_ripemd160();
case HASH_FUNC_MDC2:
return EVP_mdc2();
default:
return NULL;
}
g_assert_not_reached();
}
int SSL_library_init(void)
{
#ifndef OPENSSL_NO_DES
EVP_add_cipher(EVP_des_cbc());
EVP_add_cipher(EVP_des_ede3_cbc());
#endif
#ifndef OPENSSL_NO_IDEA
EVP_add_cipher(EVP_idea_cbc());
#endif
#ifndef OPENSSL_NO_RC4
EVP_add_cipher(EVP_rc4());
# if !defined(OPENSSL_NO_MD5) && (defined(__x86_64) || defined(__x86_64__))
EVP_add_cipher(EVP_rc4_hmac_md5());
# endif
#endif
#ifndef OPENSSL_NO_RC2
EVP_add_cipher(EVP_rc2_cbc());
/*
* Not actually used for SSL/TLS but this makes PKCS#12 work if an
* application only calls SSL_library_init().
*/
EVP_add_cipher(EVP_rc2_40_cbc());
#endif
#ifndef OPENSSL_NO_AES
EVP_add_cipher(EVP_aes_128_cbc());
EVP_add_cipher(EVP_aes_192_cbc());
EVP_add_cipher(EVP_aes_256_cbc());
EVP_add_cipher(EVP_aes_128_gcm());
EVP_add_cipher(EVP_aes_256_gcm());
# if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA1)
EVP_add_cipher(EVP_aes_128_cbc_hmac_sha1());
EVP_add_cipher(EVP_aes_256_cbc_hmac_sha1());
# endif
# if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_SHA256)
EVP_add_cipher(EVP_aes_128_cbc_hmac_sha256());
EVP_add_cipher(EVP_aes_256_cbc_hmac_sha256());
# endif
#endif
#ifndef OPENSSL_NO_CAMELLIA
EVP_add_cipher(EVP_camellia_128_cbc());
EVP_add_cipher(EVP_camellia_256_cbc());
#endif
#ifndef OPENSSL_NO_SEED
EVP_add_cipher(EVP_seed_cbc());
#endif
#ifndef OPENSSL_NO_MD5
EVP_add_digest(EVP_md5());
EVP_add_digest_alias(SN_md5, "ssl2-md5");
EVP_add_digest_alias(SN_md5, "ssl3-md5");
#endif
#ifndef OPENSSL_NO_SHA
EVP_add_digest(EVP_sha1()); /* RSA with sha1 */
EVP_add_digest_alias(SN_sha1, "ssl3-sha1");
EVP_add_digest_alias(SN_sha1WithRSAEncryption, SN_sha1WithRSA);
#endif
#ifndef OPENSSL_NO_SHA256
EVP_add_digest(EVP_sha224());
EVP_add_digest(EVP_sha256());
#endif
#ifndef OPENSSL_NO_SHA512
EVP_add_digest(EVP_sha384());
EVP_add_digest(EVP_sha512());
#endif
#if !defined(OPENSSL_NO_SHA) && !defined(OPENSSL_NO_DSA)
EVP_add_digest(EVP_dss1()); /* DSA with sha1 */
EVP_add_digest_alias(SN_dsaWithSHA1, SN_dsaWithSHA1_2);
EVP_add_digest_alias(SN_dsaWithSHA1, "DSS1");
EVP_add_digest_alias(SN_dsaWithSHA1, "dss1");
#endif
#ifndef OPENSSL_NO_ECDSA
EVP_add_digest(EVP_ecdsa());
#endif
#ifndef NO_GMSSL
EVP_add_cipher(EVP_sms4_cbc());
EVP_add_digest(EVP_sm3());
#endif
/* If you want support for phased out ciphers, add the following */
#if 0
EVP_add_digest(EVP_sha());
EVP_add_digest(EVP_dss());
#endif
#ifndef OPENSSL_NO_COMP
/*
* This will initialise the built-in compression algorithms. The value
* returned is a STACK_OF(SSL_COMP), but that can be discarded safely
*/
(void)SSL_COMP_get_compression_methods();
#endif
/* initialize cipher/digest methods table */
ssl_load_ciphers();
return (1);
}
int main(int argc, char *argv[])
{
FILE *rsapub_key_fp;
unsigned char *cam128_key, *cam128_iv;
unsigned char *cipher_of_secret_text, *cipher_of_signed_key, *signed_key, *secret_text, *clobbered_key;
EVP_PKEY *rsapub_key;
unsigned char *rc4_40_key;
const EVP_CIPHER *cam128_cfb8, *rc4_40;
const EVP_MD *sha;
EVP_MD_CTX sha_ctx;
int cam128_cfb8_keylen, cam128_cfb8_ivlen, rc4_40_keylen, signed_key_size;
int ret, count;
long cipher_of_signed_key_size, clobbered_key_size, cipher_of_secret_text_size, secret_text_size;
// get the parameters for CAMELLIA128_cfb8
cam128_cfb8 = EVP_camellia_128_cfb8();
cam128_cfb8_keylen = EVP_CIPHER_key_length(cam128_cfb8);
cam128_cfb8_ivlen = EVP_CIPHER_iv_length(cam128_cfb8);
// get the parameters for RC4_40
rc4_40 = EVP_rc4_40();
rc4_40_keylen = EVP_CIPHER_key_length(rc4_40);
// get the parameters for sha
sha = EVP_sha();
// read the s67766-clobbered-key.bin and store the key and iv for CAMELLIA128-cfb8
cam128_key = malloc(cam128_cfb8_keylen);
cam128_iv = malloc(cam128_cfb8_ivlen);
clobbered_key_size = read_file(clobbered_key_file, &clobbered_key);
if(clobbered_key_size != cam128_cfb8_keylen+cam128_cfb8_ivlen)
{
printf("reading file %s returned not enough Bytes: %ld, instead of: %d\n", clobbered_key_file, clobbered_key_size, cam128_cfb8_keylen+cam128_cfb8_ivlen);
perror("");
}
memcpy(cam128_key, clobbered_key, cam128_cfb8_keylen);
memcpy(cam128_iv, clobbered_key+cam128_cfb8_keylen, cam128_cfb8_ivlen);
// read the s67766-cipher-of-signed-key.bin
cipher_of_signed_key_size = read_file(cipher_of_signed_key_file, &cipher_of_signed_key);
// read the public key from rsapub.pem
rsapub_key_fp = fopen(rsapub_key_file, "r");
if (!rsapub_key_fp)
{
printf("opening file %s returned error\n", rsapub_key_file);
perror("");
}
rsapub_key = PEM_read_PUBKEY(rsapub_key_fp, NULL, NULL, NULL);
if (!rsapub_key)
{
printf("PEM_read_PUBKEY returned error for RSA\n");
}
if(fclose(rsapub_key_fp) != 0)
{
printf("closing file %s returned error\n", rsapub_key_file);
perror("");
}
// restore the clobbered key with bruteforce
signed_key = malloc(cipher_of_signed_key_size);
for(count = 0; count<=255; count++)
{
memset(cam128_key, count, 1);
//decrypt the cipher with guessed key
signed_key_size = decrypt(cam128_cfb8, &signed_key, cipher_of_signed_key, cipher_of_signed_key_size, cam128_key, cam128_iv);
if(signed_key_size==-1)
{
return -1;
}
if(EVP_VerifyInit(&sha_ctx, sha) == 0)
{
printf("EVP_VerifyInit returned error for SHA\n");
}
if(EVP_VerifyUpdate(&sha_ctx, signed_key, rc4_40_keylen) == 0)
{
printf("EVP_VerifyUpdate returned error for SHA\n");
}
ret = EVP_VerifyFinal(&sha_ctx, signed_key+rc4_40_keylen, signed_key_size-rc4_40_keylen, rsapub_key);
switch(ret)
{
case -1:
printf("EVP_VerifyFinal returned error for SHA\n");
break;
case 0:
break;
case 1:
count = 255;
break;
}
}
// extract the key for RC-4 40
rc4_40_key = malloc(rc4_40_keylen);
memcpy(rc4_40_key, signed_key, rc4_40_keylen);
// read the s67766-cipher-of-secret-text.bin
cipher_of_secret_text_size = read_file(cipher_of_secret_text_file, &cipher_of_secret_text);
// decrypt s67766-cipher-of-secret-text.bin
secret_text = malloc(cipher_of_secret_text_size);
secret_text_size = 0;
secret_text_size = decrypt(rc4_40, &secret_text, cipher_of_secret_text, cipher_of_secret_text_size, rc4_40_key, NULL);
// write the s67766-plain.bin
if(write_file(plain_file, secret_text, secret_text_size)==-1)
{
return -1;
}
return 0;
}
