int main(int argc, char **argv)
{
int i;
char *names[] = {
"sms4-ecb",
"sms4-cbc",
"sms4-cfb",
"sms4-ofb",
"sms4-ctr",
};
const EVP_CIPHER *cipher;
OpenSSL_add_all_ciphers();
printf("%s new ciphers:\n\n", OPENSSL_VERSION_TEXT);
for (i = 0; i < sizeof(names)/sizeof(names[i]); i++) {
if (!(cipher = EVP_get_cipherbyname(names[i]))) {
fprintf(stderr, "cipher \"%s\" is not supported\n", names[i]);
continue;
}
printf(" cipher nid : %d\n", EVP_CIPHER_nid(cipher));
printf(" cipher name : %s\n", EVP_CIPHER_name(cipher));
printf(" block size : %d\n", EVP_CIPHER_block_size(cipher));
printf(" key length : %d\n", EVP_CIPHER_key_length(cipher));
printf(" iv length : %d\n", EVP_CIPHER_iv_length(cipher));
printf(" flags : 0x%016lx\n", EVP_CIPHER_flags(cipher));
printf("\n");
}
return 0;
}
BUF_MEM *
compute_authentication_token(int protocol, const KA_CTX *ka_ctx, EVP_PKEY *opp_key,
BN_CTX *bn_ctx, enum eac_tr_version tr_version)
{
BUF_MEM *asn1 = NULL, *out = NULL, *pad =NULL;
check(ka_ctx, "Invalid arguments");
asn1 = asn1_pubkey(protocol, opp_key, bn_ctx, tr_version);
/* ISO 9797-1 algorithm 3 retail MAC now needs extra padding (padding method 2) */
if (EVP_CIPHER_nid(ka_ctx->cipher) == NID_des_ede_cbc) {
pad = add_iso_pad(asn1, EVP_CIPHER_block_size(ka_ctx->cipher));
if (!pad)
goto err;
out = authenticate(ka_ctx, pad);
} else {
out = authenticate(ka_ctx, asn1);
}
err:
if (asn1)
BUF_MEM_free(asn1);
if (pad)
BUF_MEM_free(pad);
return out;
}
/* Convert the various cipher NIDs and dummies to a proper OID NID */
int EVP_CIPHER_type(const EVP_CIPHER *ctx)
{
int nid;
ASN1_OBJECT *otmp;
nid = EVP_CIPHER_nid(ctx);
switch (nid) {
case NID_rc2_cbc:
case NID_rc2_64_cbc:
case NID_rc2_40_cbc:
return NID_rc2_cbc;
case NID_rc4:
case NID_rc4_40:
return NID_rc4;
case NID_aes_128_cfb128:
case NID_aes_128_cfb8:
case NID_aes_128_cfb1:
return NID_aes_128_cfb128;
case NID_aes_192_cfb128:
case NID_aes_192_cfb8:
case NID_aes_192_cfb1:
return NID_aes_192_cfb128;
case NID_aes_256_cfb128:
case NID_aes_256_cfb8:
case NID_aes_256_cfb1:
return NID_aes_256_cfb128;
case NID_des_cfb64:
case NID_des_cfb8:
case NID_des_cfb1:
return NID_des_cfb64;
case NID_des_ede3_cfb64:
case NID_des_ede3_cfb8:
case NID_des_ede3_cfb1:
return NID_des_cfb64;
default:
/* Check it has an OID and it is valid */
otmp = OBJ_nid2obj(nid);
if (OBJ_get0_data(otmp) == NULL)
nid = NID_undef;
ASN1_OBJECT_free(otmp);
return nid;
}
}
bool
cipher_kt_insecure(const EVP_CIPHER *cipher)
{
return !(cipher_kt_block_size(cipher) >= 128 / 8
#ifdef NID_chacha20_poly1305
|| EVP_CIPHER_nid(cipher) == NID_chacha20_poly1305
#endif
);
}
static int test_cipher_nids(const int **nids)
{
static int cipher_nids[4] = { 0, 0, 0, 0 };
static int pos = 0;
static int init = 0;
if (!init) {
const EVP_CIPHER *cipher;
if ((cipher = test_r4_cipher()) != NULL)
cipher_nids[pos++] = EVP_CIPHER_nid(cipher);
if ((cipher = test_r4_40_cipher()) != NULL)
cipher_nids[pos++] = EVP_CIPHER_nid(cipher);
cipher_nids[pos] = 0;
init = 1;
}
*nids = cipher_nids;
return pos;
}
static void
get_EVP_CIPHER_once_cb(void *d)
{
struct once_init_cipher_ctx *arg = d;
const EVP_CIPHER *ossl_evp;
hc_EVP_CIPHER *hc_evp;
hc_evp = arg->hc_memoize;
/*
* We lookup EVP_CIPHER *s by NID so that we don't fail to find a
* symbol such as EVP_aes...() when libcrypto changes after build
* time (e.g., updates, LD_LIBRARY_PATH/LD_PRELOAD).
*/
ossl_evp = EVP_get_cipherbynid(arg->nid);
if (ossl_evp == NULL) {
(void) memset(hc_evp, 0, sizeof(*hc_evp));
#if HCRYPTO_FALLBACK
*arg->hc_memoizep = arg->fallback;
#endif
return;
}
/* Build the hc_EVP_CIPHER */
hc_evp->nid = EVP_CIPHER_nid(ossl_evp); /* We would an hcrypto NIDs if we had them */
hc_evp->block_size = EVP_CIPHER_block_size(ossl_evp);
hc_evp->key_len = EVP_CIPHER_key_length(ossl_evp);
hc_evp->iv_len = EVP_CIPHER_iv_length(ossl_evp);
/*
* We force hc_EVP_CipherInit_ex to always call our init() function,
* otherwise we don't get a chance to call EVP_CipherInit_ex()
* correctly.
*/
hc_evp->flags = hc_EVP_CIPH_ALWAYS_CALL_INIT | arg->flags;
/* Our cipher context */
hc_evp->ctx_size = sizeof(struct ossl_cipher_ctx);
/* Our wrappers */
hc_evp->init = cipher_ctx_init;
hc_evp->do_cipher = cipher_do_cipher;
hc_evp->cleanup = cipher_cleanup;
hc_evp->set_asn1_parameters = NULL;
hc_evp->get_asn1_parameters = NULL;
hc_evp->ctrl = cipher_ctrl;
/* Our link to the OpenSSL EVP_CIPHER */
hc_evp->app_data = (void *)ossl_evp;
/* Finally, set the static hc_EVP_CIPHER * to the one we just built */
*arg->hc_memoizep = hc_evp;
}
int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md,
EVP_PBE_KEYGEN *keygen)
{
int cipher_nid, md_nid;
if (cipher)
cipher_nid = EVP_CIPHER_nid(cipher);
else
cipher_nid = -1;
if (md)
md_nid = EVP_MD_type(md);
else
md_nid = -1;
return EVP_PBE_alg_add_type(EVP_PBE_TYPE_OUTER, nid,
cipher_nid, md_nid, keygen);
}
BUF_MEM *
authenticate(const KA_CTX *ctx, const BUF_MEM *data)
{
switch (EVP_CIPHER_nid(ctx->cipher)) {
case NID_des_ede_cbc:
return retail_mac_des(ctx->k_mac, data);
case NID_aes_128_cbc:
case NID_aes_192_cbc:
case NID_aes_256_cbc:
return cmac(ctx->cmac_ctx, ctx->cipher, ctx->k_mac, data,
EAC_AES_MAC_LENGTH);
default:
log_err("Unknown cipher");
return NULL;
}
}
static VALUE
ossl_engine_get_cipher(VALUE self, VALUE name)
{
ENGINE *e;
const EVP_CIPHER *ciph, *tmp;
char *s;
int nid;
s = StringValuePtr(name);
tmp = EVP_get_cipherbyname(s);
if(!tmp) ossl_raise(eEngineError, "no such cipher `%s'", s);
nid = EVP_CIPHER_nid(tmp);
GetEngine(self, e);
ciph = ENGINE_get_cipher(e, nid);
if(!ciph) ossl_raise(eEngineError, NULL);
return ossl_cipher_new(ciph);
}
int
key_des_num_cblocks (const EVP_CIPHER *kt)
{
int ret = 0;
const char *name = OBJ_nid2sn (EVP_CIPHER_nid (kt));
if (name)
{
if (!strncmp (name, "DES-", 4))
{
ret = EVP_CIPHER_key_length (kt) / sizeof (DES_cblock);
}
else if (!strncmp (name, "DESX-", 5))
{
ret = 1;
}
}
dmsg (D_CRYPTO_DEBUG, "CRYPTO INFO: n_DES_cblocks=%d", ret);
return ret;
}
const EVP_CIPHER *
cipher_kt_get (const char *ciphername)
{
const EVP_CIPHER *cipher = NULL;
ASSERT (ciphername);
cipher = EVP_get_cipherbyname (ciphername);
if ((NULL == cipher) || !cipher_ok (OBJ_nid2sn (EVP_CIPHER_nid (cipher))))
msg (M_SSLERR, "Cipher algorithm '%s' not found", ciphername);
if (EVP_CIPHER_key_length (cipher) > MAX_CIPHER_KEY_LENGTH)
msg (M_FATAL, "Cipher algorithm '%s' uses a default key size (%d bytes) which is larger than " PACKAGE_NAME "'s current maximum key size (%d bytes)",
ciphername,
EVP_CIPHER_key_length (cipher),
MAX_CIPHER_KEY_LENGTH);
return cipher;
}
static int cryptodev_select_cipher_cb(const char *str, int len, void *usr)
{
int *cipher_list = (int *)usr;
char *name;
const EVP_CIPHER *EVP;
size_t i;
if (len == 0)
return 1;
if (usr == NULL || (name = OPENSSL_strndup(str, len)) == NULL)
return 0;
EVP = EVP_get_cipherbyname(name);
if (EVP == NULL)
fprintf(stderr, "devcrypto: unknown cipher %s\n", name);
else if ((i = find_cipher_data_index(EVP_CIPHER_nid(EVP))) != (size_t)-1)
cipher_list[i] = 1;
else
fprintf(stderr, "devcrypto: cipher %s not available\n", name);
OPENSSL_free(name);
return 1;
}
bool
cipher_kt_mode_aead(const cipher_kt_t *cipher)
{
#ifdef HAVE_AEAD_CIPHER_MODES
if (cipher)
{
switch (EVP_CIPHER_nid(cipher))
{
case NID_aes_128_gcm:
case NID_aes_192_gcm:
case NID_aes_256_gcm:
#ifdef NID_chacha20_poly1305
case NID_chacha20_poly1305:
#endif
return true;
}
}
#endif
return false;
}
void openssl_evp_keyiv()
{
int i;
const EVP_MD *md;
const EVP_CIPHER *type;
unsigned char salt[32], data[COMM_LEN], *key, *iv;
md = EVP_md5();
printf("\nEVP_Md info: type[%d], ", EVP_MD_type(md));
printf("nid[%d], ", EVP_MD_nid(md));
printf("name[%s], ", EVP_MD_name(md));
printf("pkey type[%d], ", EVP_MD_pkey_type(md));
printf("size[%d], ", EVP_MD_size(md));
printf("block size[%d], ", EVP_MD_block_size(md));
type = EVP_des_ecb();
printf("\nEVP_ECB info: encrypto nid[%d], ", EVP_CIPHER_nid(type));
printf("name[%s], ", EVP_CIPHER_name(type));
printf("bock size[%d]", EVP_CIPHER_block_size(type));
key = (unsigned char *)malloc(EVP_CIPHER_key_length(type));
iv = (unsigned char *)malloc(EVP_CIPHER_iv_length(type));
for (i = 0; i < COMM_LEN; i++)
memset(&data[i], i, 1);
for (i = 0; i < 32; i++)
memset(&salt[i], i, 1);
EVP_BytesToKey(type, md, salt, data, COMM_LEN, 2, key, iv);
printf("\nEVP_key value: ");
for (i = 0; i < EVP_CIPHER_key_length(type); i++)
printf("%x ", key[i]);
printf("\nEVP_iv value: ");
for (i = 0; i < EVP_CIPHER_iv_length(type); i++)
printf("%x ", iv[i]);
printf("\n");
}
X509_ALGOR *PKCS5_pbe2_set_iv(const EVP_CIPHER *cipher, int iter,
unsigned char *salt, int saltlen,
unsigned char *aiv, int prf_nid)
{
X509_ALGOR *scheme = NULL, *kalg = NULL, *ret = NULL;
int alg_nid, keylen;
EVP_CIPHER_CTX ctx;
unsigned char iv[EVP_MAX_IV_LENGTH];
PBE2PARAM *pbe2 = NULL;
const ASN1_OBJECT *obj;
alg_nid = EVP_CIPHER_nid(cipher);
if(alg_nid == NID_undef) {
OPENSSL_PUT_ERROR(PKCS8, PKCS8_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
goto err;
}
obj = OBJ_nid2obj(alg_nid);
if(!(pbe2 = PBE2PARAM_new())) goto merr;
/* Setup the AlgorithmIdentifier for the encryption scheme */
scheme = pbe2->encryption;
scheme->algorithm = (ASN1_OBJECT*) obj;
if(!(scheme->parameter = ASN1_TYPE_new())) goto merr;
/* Create random IV */
if (EVP_CIPHER_iv_length(cipher))
{
if (aiv)
memcpy(iv, aiv, EVP_CIPHER_iv_length(cipher));
else if (!RAND_bytes(iv, EVP_CIPHER_iv_length(cipher)))
goto err;
}
EVP_CIPHER_CTX_init(&ctx);
/* Dummy cipherinit to just setup the IV, and PRF */
if (!EVP_CipherInit_ex(&ctx, cipher, NULL, NULL, iv, 0))
goto err;
if(param_to_asn1(&ctx, scheme->parameter) < 0) {
OPENSSL_PUT_ERROR(PKCS8, PKCS8_R_ERROR_SETTING_CIPHER_PARAMS);
EVP_CIPHER_CTX_cleanup(&ctx);
goto err;
}
/* If prf NID unspecified see if cipher has a preference.
* An error is OK here: just means use default PRF.
*/
if ((prf_nid == -1) &&
EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_PBE_PRF_NID, 0, &prf_nid) <= 0)
{
ERR_clear_error();
prf_nid = NID_hmacWithSHA1;
}
EVP_CIPHER_CTX_cleanup(&ctx);
/* If its RC2 then we'd better setup the key length */
if(alg_nid == NID_rc2_cbc)
keylen = EVP_CIPHER_key_length(cipher);
else
keylen = -1;
/* Setup keyfunc */
X509_ALGOR_free(pbe2->keyfunc);
pbe2->keyfunc = PKCS5_pbkdf2_set(iter, salt, saltlen, prf_nid, keylen);
if (!pbe2->keyfunc)
goto merr;
/* Now set up top level AlgorithmIdentifier */
if(!(ret = X509_ALGOR_new())) goto merr;
if(!(ret->parameter = ASN1_TYPE_new())) goto merr;
ret->algorithm = (ASN1_OBJECT*) OBJ_nid2obj(NID_pbes2);
/* Encode PBE2PARAM into parameter */
if(!ASN1_item_pack(pbe2, ASN1_ITEM_rptr(PBE2PARAM),
&ret->parameter->value.sequence)) goto merr;
ret->parameter->type = V_ASN1_SEQUENCE;
PBE2PARAM_free(pbe2);
pbe2 = NULL;
return ret;
merr:
OPENSSL_PUT_ERROR(PKCS8, ERR_R_MALLOC_FAILURE);
err:
PBE2PARAM_free(pbe2);
/* Note 'scheme' is freed as part of pbe2 */
X509_ALGOR_free(kalg);
X509_ALGOR_free(ret);
return NULL;
}
int MAIN(int argc, char **argv)
{
static const char magic[]="Salted__";
char mbuf[sizeof magic-1];
char *strbuf=NULL;
unsigned char *buff=NULL,*bufsize=NULL;
int bsize=BSIZE,verbose=0;
int ret=1,inl;
int nopad = 0;
unsigned char key[EVP_MAX_KEY_LENGTH],iv[EVP_MAX_IV_LENGTH];
unsigned char salt[PKCS5_SALT_LEN];
char *str=NULL, *passarg = NULL, *pass = NULL;
char *hkey=NULL,*hiv=NULL,*hsalt = NULL;
char *md=NULL;
int enc=1,printkey=0,i,base64=0;
#ifdef ZLIB
int do_zlib=0;
BIO *bzl = NULL;
#endif
int debug=0,olb64=0,nosalt=0;
const EVP_CIPHER *cipher=NULL,*c;
EVP_CIPHER_CTX *ctx = NULL;
char *inf=NULL,*outf=NULL;
BIO *in=NULL,*out=NULL,*b64=NULL,*benc=NULL,*rbio=NULL,*wbio=NULL;
#define PROG_NAME_SIZE 39
char pname[PROG_NAME_SIZE+1];
#ifndef OPENSSL_NO_ENGINE
char *engine = NULL;
#endif
const EVP_MD *dgst=NULL;
int non_fips_allow = 0;
apps_startup();
if (bio_err == NULL)
if ((bio_err=BIO_new(BIO_s_file())) != NULL)
BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
if (!load_config(bio_err, NULL))
goto end;
/* first check the program name */
program_name(argv[0],pname,sizeof pname);
if (strcmp(pname,"base64") == 0)
base64=1;
#ifdef ZLIB
if (strcmp(pname,"zlib") == 0)
do_zlib=1;
#endif
cipher=EVP_get_cipherbyname(pname);
#ifdef ZLIB
if (!do_zlib && !base64 && (cipher == NULL)
&& (strcmp(pname,"enc") != 0))
#else
if (!base64 && (cipher == NULL) && (strcmp(pname,"enc") != 0))
#endif
{
BIO_printf(bio_err,"%s is an unknown cipher\n",pname);
goto bad;
}
argc--;
argv++;
while (argc >= 1)
{
if (strcmp(*argv,"-e") == 0)
enc=1;
else if (strcmp(*argv,"-in") == 0)
{
if (--argc < 1) goto bad;
inf= *(++argv);
}
else if (strcmp(*argv,"-out") == 0)
{
if (--argc < 1) goto bad;
outf= *(++argv);
}
else if (strcmp(*argv,"-pass") == 0)
{
if (--argc < 1) goto bad;
passarg= *(++argv);
}
#ifndef OPENSSL_NO_ENGINE
else if (strcmp(*argv,"-engine") == 0)
{
if (--argc < 1) goto bad;
engine= *(++argv);
}
#endif
else if (strcmp(*argv,"-d") == 0)
enc=0;
else if (strcmp(*argv,"-p") == 0)
printkey=1;
else if (strcmp(*argv,"-v") == 0)
verbose=1;
else if (strcmp(*argv,"-nopad") == 0)
nopad=1;
else if (strcmp(*argv,"-salt") == 0)
nosalt=0;
else if (strcmp(*argv,"-nosalt") == 0)
nosalt=1;
else if (strcmp(*argv,"-debug") == 0)
debug=1;
else if (strcmp(*argv,"-P") == 0)
printkey=2;
else if (strcmp(*argv,"-A") == 0)
olb64=1;
else if (strcmp(*argv,"-a") == 0)
base64=1;
else if (strcmp(*argv,"-base64") == 0)
base64=1;
#ifdef ZLIB
else if (strcmp(*argv,"-z") == 0)
do_zlib=1;
#endif
else if (strcmp(*argv,"-bufsize") == 0)
{
if (--argc < 1) goto bad;
bufsize=(unsigned char *)*(++argv);
}
else if (strcmp(*argv,"-k") == 0)
{
if (--argc < 1) goto bad;
str= *(++argv);
}
else if (strcmp(*argv,"-kfile") == 0)
{
static char buf[128];
FILE *infile;
char *file;
if (--argc < 1) goto bad;
file= *(++argv);
infile=fopen(file,"r");
if (infile == NULL)
{
BIO_printf(bio_err,"unable to read key from '%s'\n",
file);
goto bad;
}
buf[0]='\0';
if (!fgets(buf,sizeof buf,infile))
{
BIO_printf(bio_err,"unable to read key from '%s'\n",
file);
goto bad;
}
fclose(infile);
i=strlen(buf);
if ((i > 0) &&
((buf[i-1] == '\n') || (buf[i-1] == '\r')))
buf[--i]='\0';
if ((i > 0) &&
((buf[i-1] == '\n') || (buf[i-1] == '\r')))
buf[--i]='\0';
if (i < 1)
{
BIO_printf(bio_err,"zero length password\n");
goto bad;
}
str=buf;
}
else if (strcmp(*argv,"-K") == 0)
{
if (--argc < 1) goto bad;
hkey= *(++argv);
}
else if (strcmp(*argv,"-S") == 0)
{
if (--argc < 1) goto bad;
hsalt= *(++argv);
}
else if (strcmp(*argv,"-iv") == 0)
{
if (--argc < 1) goto bad;
hiv= *(++argv);
}
else if (strcmp(*argv,"-md") == 0)
{
if (--argc < 1) goto bad;
md= *(++argv);
}
else if (strcmp(*argv,"-non-fips-allow") == 0)
non_fips_allow = 1;
else if ((argv[0][0] == '-') &&
((c=EVP_get_cipherbyname(&(argv[0][1]))) != NULL))
{
cipher=c;
}
else if (strcmp(*argv,"-none") == 0)
cipher=NULL;
else
{
BIO_printf(bio_err,"unknown option '%s'\n",*argv);
bad:
BIO_printf(bio_err,"options are\n");
BIO_printf(bio_err,"%-14s input file\n","-in <file>");
BIO_printf(bio_err,"%-14s output file\n","-out <file>");
BIO_printf(bio_err,"%-14s pass phrase source\n","-pass <arg>");
BIO_printf(bio_err,"%-14s encrypt\n","-e");
BIO_printf(bio_err,"%-14s decrypt\n","-d");
BIO_printf(bio_err,"%-14s base64 encode/decode, depending on encryption flag\n","-a/-base64");
BIO_printf(bio_err,"%-14s passphrase is the next argument\n","-k");
BIO_printf(bio_err,"%-14s passphrase is the first line of the file argument\n","-kfile");
BIO_printf(bio_err,"%-14s the next argument is the md to use to create a key\n","-md");
BIO_printf(bio_err,"%-14s from a passphrase. One of md2, md5, sha or sha1\n","");
BIO_printf(bio_err,"%-14s salt in hex is the next argument\n","-S");
BIO_printf(bio_err,"%-14s key/iv in hex is the next argument\n","-K/-iv");
BIO_printf(bio_err,"%-14s print the iv/key (then exit if -P)\n","-[pP]");
BIO_printf(bio_err,"%-14s buffer size\n","-bufsize <n>");
BIO_printf(bio_err,"%-14s disable standard block padding\n","-nopad");
#ifndef OPENSSL_NO_ENGINE
BIO_printf(bio_err,"%-14s use engine e, possibly a hardware device.\n","-engine e");
#endif
BIO_printf(bio_err,"Cipher Types\n");
OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
show_ciphers,
bio_err);
BIO_printf(bio_err,"\n");
goto end;
}
argc--;
argv++;
}
#ifndef OPENSSL_NO_ENGINE
setup_engine(bio_err, engine, 0);
#endif
if (md && (dgst=EVP_get_digestbyname(md)) == NULL)
{
BIO_printf(bio_err,"%s is an unsupported message digest type\n",md);
goto end;
}
if (dgst == NULL)
{
dgst = EVP_md5();
}
if (bufsize != NULL)
{
unsigned long n;
for (n=0; *bufsize; bufsize++)
{
i= *bufsize;
if ((i <= '9') && (i >= '0'))
n=n*10+i-'0';
else if (i == 'k')
{
n*=1024;
bufsize++;
break;
}
}
if (*bufsize != '\0')
{
BIO_printf(bio_err,"invalid 'bufsize' specified.\n");
goto end;
}
/* It must be large enough for a base64 encoded line */
if (base64 && n < 80) n=80;
bsize=(int)n;
if (verbose) BIO_printf(bio_err,"bufsize=%d\n",bsize);
}
strbuf=OPENSSL_malloc(SIZE);
buff=(unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize));
if ((buff == NULL) || (strbuf == NULL))
{
BIO_printf(bio_err,"OPENSSL_malloc failure %ld\n",(long)EVP_ENCODE_LENGTH(bsize));
goto end;
}
in=BIO_new(BIO_s_file());
out=BIO_new(BIO_s_file());
if ((in == NULL) || (out == NULL))
{
ERR_print_errors(bio_err);
goto end;
}
if (debug)
{
BIO_set_callback(in,BIO_debug_callback);
BIO_set_callback(out,BIO_debug_callback);
BIO_set_callback_arg(in,(char *)bio_err);
BIO_set_callback_arg(out,(char *)bio_err);
}
if (inf == NULL)
{
#ifndef OPENSSL_NO_SETVBUF_IONBF
if (bufsize != NULL)
setvbuf(stdin, (char *)NULL, _IONBF, 0);
#endif /* ndef OPENSSL_NO_SETVBUF_IONBF */
BIO_set_fp(in,stdin,BIO_NOCLOSE);
}
else
{
if (BIO_read_filename(in,inf) <= 0)
{
perror(inf);
goto end;
}
}
if(!str && passarg) {
if(!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
str = pass;
}
if ((str == NULL) && (cipher != NULL) && (hkey == NULL))
{
for (;;)
{
char buf[200];
BIO_snprintf(buf,sizeof buf,"enter %s %s password:"******"encryption":"decryption");
strbuf[0]='\0';
i=EVP_read_pw_string((char *)strbuf,SIZE,buf,enc);
if (i == 0)
{
if (strbuf[0] == '\0')
{
ret=1;
goto end;
}
str=strbuf;
break;
}
if (i < 0)
{
BIO_printf(bio_err,"bad password read\n");
goto end;
}
}
}
if (outf == NULL)
{
BIO_set_fp(out,stdout,BIO_NOCLOSE);
#ifndef OPENSSL_NO_SETVBUF_IONBF
if (bufsize != NULL)
setvbuf(stdout, (char *)NULL, _IONBF, 0);
#endif /* ndef OPENSSL_NO_SETVBUF_IONBF */
#ifdef OPENSSL_SYS_VMS
{
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
out = BIO_push(tmpbio, out);
}
#endif
}
else
{
if (BIO_write_filename(out,outf) <= 0)
{
perror(outf);
goto end;
}
}
rbio=in;
wbio=out;
#ifdef ZLIB
if (do_zlib)
{
if ((bzl=BIO_new(BIO_f_zlib())) == NULL)
goto end;
if (enc)
wbio=BIO_push(bzl,wbio);
else
rbio=BIO_push(bzl,rbio);
}
#endif
if (base64)
{
if ((b64=BIO_new(BIO_f_base64())) == NULL)
goto end;
if (debug)
{
BIO_set_callback(b64,BIO_debug_callback);
BIO_set_callback_arg(b64,(char *)bio_err);
}
if (olb64)
BIO_set_flags(b64,BIO_FLAGS_BASE64_NO_NL);
if (enc)
wbio=BIO_push(b64,wbio);
else
rbio=BIO_push(b64,rbio);
}
if (cipher != NULL)
{
/* Note that str is NULL if a key was passed on the command
* line, so we get no salt in that case. Is this a bug?
*/
if (str != NULL)
{
/* Salt handling: if encrypting generate a salt and
* write to output BIO. If decrypting read salt from
* input BIO.
*/
unsigned char *sptr;
if(nosalt) sptr = NULL;
else {
if(enc) {
if(hsalt) {
if(!set_hex(hsalt,salt,sizeof salt)) {
BIO_printf(bio_err,
"invalid hex salt value\n");
goto end;
}
} else if (RAND_pseudo_bytes(salt, sizeof salt) < 0)
goto end;
/* If -P option then don't bother writing */
if((printkey != 2)
&& (BIO_write(wbio,magic,
sizeof magic-1) != sizeof magic-1
|| BIO_write(wbio,
(char *)salt,
sizeof salt) != sizeof salt)) {
BIO_printf(bio_err,"error writing output file\n");
goto end;
}
} else if(BIO_read(rbio,mbuf,sizeof mbuf) != sizeof mbuf
|| BIO_read(rbio,
(unsigned char *)salt,
sizeof salt) != sizeof salt) {
BIO_printf(bio_err,"error reading input file\n");
goto end;
} else if(memcmp(mbuf,magic,sizeof magic-1)) {
BIO_printf(bio_err,"bad magic number\n");
goto end;
}
sptr = salt;
}
EVP_BytesToKey(cipher,dgst,sptr,
(unsigned char *)str,
strlen(str),1,key,iv);
/* zero the complete buffer or the string
* passed from the command line
* bug picked up by
* Larry J. Hughes Jr. <*****@*****.**> */
if (str == strbuf)
OPENSSL_cleanse(str,SIZE);
else
OPENSSL_cleanse(str,strlen(str));
}
if ((hiv != NULL) && !set_hex(hiv,iv,sizeof iv))
{
BIO_printf(bio_err,"invalid hex iv value\n");
goto end;
}
if ((hiv == NULL) && (str == NULL)
&& EVP_CIPHER_iv_length(cipher) != 0)
{
/* No IV was explicitly set and no IV was generated
* during EVP_BytesToKey. Hence the IV is undefined,
* making correct decryption impossible. */
BIO_printf(bio_err, "iv undefined\n");
goto end;
}
if ((hkey != NULL) && !set_hex(hkey,key,sizeof key))
{
BIO_printf(bio_err,"invalid hex key value\n");
goto end;
}
if ((benc=BIO_new(BIO_f_cipher())) == NULL)
goto end;
/* Since we may be changing parameters work on the encryption
* context rather than calling BIO_set_cipher().
*/
BIO_get_cipher_ctx(benc, &ctx);
if (non_fips_allow)
EVP_CIPHER_CTX_set_flags(ctx,
EVP_CIPH_FLAG_NON_FIPS_ALLOW);
if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc))
{
BIO_printf(bio_err, "Error setting cipher %s\n",
EVP_CIPHER_name(cipher));
ERR_print_errors(bio_err);
goto end;
}
if (nopad)
EVP_CIPHER_CTX_set_padding(ctx, 0);
if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc))
{
BIO_printf(bio_err, "Error setting cipher %s\n",
EVP_CIPHER_name(cipher));
ERR_print_errors(bio_err);
goto end;
}
if (debug)
{
BIO_set_callback(benc,BIO_debug_callback);
BIO_set_callback_arg(benc,(char *)bio_err);
}
if (printkey)
{
if (!nosalt)
{
printf("salt=");
for (i=0; i<(int)sizeof(salt); i++)
printf("%02X",salt[i]);
printf("\n");
}
if (cipher->key_len > 0)
{
printf("key=");
for (i=0; i<cipher->key_len; i++)
printf("%02X",key[i]);
printf("\n");
}
if (cipher->iv_len > 0)
{
printf("iv =");
for (i=0; i<cipher->iv_len; i++)
printf("%02X",iv[i]);
printf("\n");
}
if (printkey == 2)
{
ret=0;
goto end;
}
}
}
/* Only encrypt/decrypt as we write the file */
if (benc != NULL)
wbio=BIO_push(benc,wbio);
for (;;)
{
inl=BIO_read(rbio,(char *)buff,bsize);
if (inl <= 0) break;
if (BIO_write(wbio,(char *)buff,inl) != inl)
{
BIO_printf(bio_err,"error writing output file\n");
goto end;
}
}
if (!BIO_flush(wbio))
{
BIO_printf(bio_err,"bad decrypt\n");
goto end;
}
ret=0;
if (verbose)
{
BIO_printf(bio_err,"bytes read :%8ld\n",BIO_number_read(in));
BIO_printf(bio_err,"bytes written:%8ld\n",BIO_number_written(out));
}
end:
ERR_print_errors(bio_err);
if (strbuf != NULL) OPENSSL_free(strbuf);
if (buff != NULL) OPENSSL_free(buff);
if (in != NULL) BIO_free(in);
if (out != NULL) BIO_free_all(out);
if (benc != NULL) BIO_free(benc);
if (b64 != NULL) BIO_free(b64);
#ifdef ZLIB
if (bzl != NULL) BIO_free(bzl);
#endif
if(pass) OPENSSL_free(pass);
apps_shutdown();
OPENSSL_EXIT(ret);
}
int enc_main(int argc, char **argv)
{
static char buf[128];
static const char magic[] = "Salted__";
BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio =
NULL, *wbio = NULL;
EVP_CIPHER_CTX *ctx = NULL;
const EVP_CIPHER *cipher = NULL, *c;
const EVP_MD *dgst = NULL;
char *hkey = NULL, *hiv = NULL, *hsalt = NULL, *p;
char *infile = NULL, *outfile = NULL, *prog;
char *str = NULL, *passarg = NULL, *pass = NULL, *strbuf = NULL;
char mbuf[sizeof magic - 1];
OPTION_CHOICE o;
int bsize = BSIZE, verbose = 0, debug = 0, olb64 = 0, nosalt = 0;
int enc = 1, printkey = 0, i, k;
int base64 = 0, informat = FORMAT_BINARY, outformat = FORMAT_BINARY;
int ret = 1, inl, nopad = 0, non_fips_allow = 0;
unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
unsigned char *buff = NULL, salt[PKCS5_SALT_LEN];
unsigned long n;
#ifdef ZLIB
int do_zlib = 0;
BIO *bzl = NULL;
#endif
/* first check the program name */
prog = opt_progname(argv[0]);
if (strcmp(prog, "base64") == 0)
base64 = 1;
#ifdef ZLIB
else if (strcmp(prog, "zlib") == 0)
do_zlib = 1;
#endif
else {
cipher = EVP_get_cipherbyname(prog);
if (cipher == NULL && strcmp(prog, "enc") != 0) {
BIO_printf(bio_err, "%s is not a known cipher\n", prog);
goto end;
}
}
prog = opt_init(argc, argv, enc_options);
while ((o = opt_next()) != OPT_EOF) {
switch (o) {
case OPT_EOF:
case OPT_ERR:
opthelp:
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
goto end;
case OPT_HELP:
opt_help(enc_options);
ret = 0;
BIO_printf(bio_err, "Cipher Types\n");
OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
show_ciphers, bio_err);
BIO_printf(bio_err, "\n");
goto end;
case OPT_E:
enc = 1;
break;
case OPT_IN:
infile = opt_arg();
break;
case OPT_OUT:
outfile = opt_arg();
break;
case OPT_PASS:
passarg = opt_arg();
break;
case OPT_ENGINE:
(void)setup_engine(opt_arg(), 0);
break;
case OPT_D:
enc = 0;
break;
case OPT_P:
printkey = 1;
break;
case OPT_V:
verbose = 1;
break;
case OPT_NOPAD:
nopad = 1;
break;
case OPT_SALT:
nosalt = 0;
break;
case OPT_NOSALT:
nosalt = 1;
break;
case OPT_DEBUG:
debug = 1;
break;
case OPT_UPPER_P:
printkey = 2;
break;
case OPT_UPPER_A:
olb64 = 1;
break;
case OPT_A:
base64 = 1;
break;
case OPT_Z:
#ifdef ZLIB
do_zlib = 1;
#endif
break;
case OPT_BUFSIZE:
p = opt_arg();
i = (int)strlen(p) - 1;
k = i >= 1 && p[i] == 'k';
if (k)
p[i] = '\0';
if (!opt_ulong(opt_arg(), &n))
goto opthelp;
if (k)
n *= 1024;
bsize = (int)n;
break;
case OPT_K:
str = opt_arg();
break;
case OPT_KFILE:
in = bio_open_default(opt_arg(), 'r', FORMAT_TEXT);
if (in == NULL)
goto opthelp;
i = BIO_gets(in, buf, sizeof buf);
BIO_free(in);
in = NULL;
if (i <= 0) {
BIO_printf(bio_err,
"%s Can't read key from %s\n", prog, opt_arg());
goto opthelp;
}
while (--i > 0 && (buf[i] == '\r' || buf[i] == '\n'))
buf[i] = '\0';
if (i <= 0) {
BIO_printf(bio_err, "%s: zero length password\n", prog);
goto opthelp;
}
str = buf;
break;
case OPT_UPPER_K:
hkey = opt_arg();
break;
case OPT_UPPER_S:
hsalt = opt_arg();
break;
case OPT_IV:
hiv = opt_arg();
break;
case OPT_MD:
if (!opt_md(opt_arg(), &dgst))
goto opthelp;
break;
case OPT_NON_FIPS_ALLOW:
non_fips_allow = 1;
break;
case OPT_CIPHER:
if (!opt_cipher(opt_unknown(), &c))
goto opthelp;
cipher = c;
break;
case OPT_NONE:
cipher = NULL;
break;
}
}
argc = opt_num_rest();
argv = opt_rest();
if (cipher && EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) {
BIO_printf(bio_err, "%s: AEAD ciphers not supported\n", prog);
goto end;
}
if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE)) {
BIO_printf(bio_err, "%s XTS ciphers not supported\n", prog);
goto end;
}
if (dgst == NULL)
dgst = EVP_sha256();
/* It must be large enough for a base64 encoded line */
if (base64 && bsize < 80)
bsize = 80;
if (verbose)
BIO_printf(bio_err, "bufsize=%d\n", bsize);
if (base64) {
if (enc)
outformat = FORMAT_BASE64;
else
informat = FORMAT_BASE64;
}
strbuf = app_malloc(SIZE, "strbuf");
buff = app_malloc(EVP_ENCODE_LENGTH(bsize), "evp buffer");
if (debug) {
BIO_set_callback(in, BIO_debug_callback);
BIO_set_callback(out, BIO_debug_callback);
BIO_set_callback_arg(in, (char *)bio_err);
BIO_set_callback_arg(out, (char *)bio_err);
}
if (infile == NULL) {
unbuffer(stdin);
in = dup_bio_in(informat);
} else
in = bio_open_default(infile, 'r', informat);
if (in == NULL)
goto end;
if (!str && passarg) {
if (!app_passwd(passarg, NULL, &pass, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
str = pass;
}
if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) {
for (;;) {
char prompt[200];
BIO_snprintf(prompt, sizeof prompt, "enter %s %s password:"******"encryption" : "decryption");
strbuf[0] = '\0';
i = EVP_read_pw_string((char *)strbuf, SIZE, prompt, enc);
if (i == 0) {
if (strbuf[0] == '\0') {
ret = 1;
goto end;
}
str = strbuf;
break;
}
if (i < 0) {
BIO_printf(bio_err, "bad password read\n");
goto end;
}
}
}
out = bio_open_default(outfile, 'w', outformat);
if (out == NULL)
goto end;
rbio = in;
wbio = out;
#ifdef ZLIB
if (do_zlib) {
if ((bzl = BIO_new(BIO_f_zlib())) == NULL)
goto end;
if (enc)
wbio = BIO_push(bzl, wbio);
else
rbio = BIO_push(bzl, rbio);
}
#endif
if (base64) {
if ((b64 = BIO_new(BIO_f_base64())) == NULL)
goto end;
if (debug) {
BIO_set_callback(b64, BIO_debug_callback);
BIO_set_callback_arg(b64, (char *)bio_err);
}
if (olb64)
BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
if (enc)
wbio = BIO_push(b64, wbio);
else
rbio = BIO_push(b64, rbio);
}
if (cipher != NULL) {
/*
* Note that str is NULL if a key was passed on the command line, so
* we get no salt in that case. Is this a bug?
*/
if (str != NULL) {
/*
* Salt handling: if encrypting generate a salt and write to
* output BIO. If decrypting read salt from input BIO.
*/
unsigned char *sptr;
if (nosalt)
sptr = NULL;
else {
if (enc) {
if (hsalt) {
if (!set_hex(hsalt, salt, sizeof salt)) {
BIO_printf(bio_err, "invalid hex salt value\n");
goto end;
}
} else if (RAND_bytes(salt, sizeof salt) <= 0)
goto end;
/*
* If -P option then don't bother writing
*/
if ((printkey != 2)
&& (BIO_write(wbio, magic,
sizeof magic - 1) != sizeof magic - 1
|| BIO_write(wbio,
(char *)salt,
sizeof salt) != sizeof salt)) {
BIO_printf(bio_err, "error writing output file\n");
goto end;
}
} else if (BIO_read(rbio, mbuf, sizeof mbuf) != sizeof mbuf
|| BIO_read(rbio,
(unsigned char *)salt,
sizeof salt) != sizeof salt) {
BIO_printf(bio_err, "error reading input file\n");
goto end;
} else if (memcmp(mbuf, magic, sizeof magic - 1)) {
BIO_printf(bio_err, "bad magic number\n");
goto end;
}
sptr = salt;
}
if (!EVP_BytesToKey(cipher, dgst, sptr,
(unsigned char *)str,
strlen(str), 1, key, iv)) {
BIO_printf(bio_err, "EVP_BytesToKey failed\n");
goto end;
}
/*
* zero the complete buffer or the string passed from the command
* line bug picked up by Larry J. Hughes Jr. <*****@*****.**>
*/
if (str == strbuf)
OPENSSL_cleanse(str, SIZE);
else
OPENSSL_cleanse(str, strlen(str));
}
if (hiv != NULL) {
int siz = EVP_CIPHER_iv_length(cipher);
if (siz == 0) {
BIO_printf(bio_err, "warning: iv not use by this cipher\n");
} else if (!set_hex(hiv, iv, sizeof iv)) {
BIO_printf(bio_err, "invalid hex iv value\n");
goto end;
}
}
if ((hiv == NULL) && (str == NULL)
&& EVP_CIPHER_iv_length(cipher) != 0) {
/*
* No IV was explicitly set and no IV was generated during
* EVP_BytesToKey. Hence the IV is undefined, making correct
* decryption impossible.
*/
BIO_printf(bio_err, "iv undefined\n");
goto end;
}
if ((hkey != NULL) && !set_hex(hkey, key, EVP_CIPHER_key_length(cipher))) {
BIO_printf(bio_err, "invalid hex key value\n");
goto end;
}
if ((benc = BIO_new(BIO_f_cipher())) == NULL)
goto end;
/*
* Since we may be changing parameters work on the encryption context
* rather than calling BIO_set_cipher().
*/
BIO_get_cipher_ctx(benc, &ctx);
if (non_fips_allow)
EVP_CIPHER_CTX_set_flags(ctx, EVP_CIPH_FLAG_NON_FIPS_ALLOW);
if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc)) {
BIO_printf(bio_err, "Error setting cipher %s\n",
EVP_CIPHER_name(cipher));
ERR_print_errors(bio_err);
goto end;
}
if (nopad)
EVP_CIPHER_CTX_set_padding(ctx, 0);
if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc)) {
BIO_printf(bio_err, "Error setting cipher %s\n",
EVP_CIPHER_name(cipher));
ERR_print_errors(bio_err);
goto end;
}
if (debug) {
BIO_set_callback(benc, BIO_debug_callback);
BIO_set_callback_arg(benc, (char *)bio_err);
}
if (printkey) {
if (!nosalt) {
printf("salt=");
for (i = 0; i < (int)sizeof(salt); i++)
printf("%02X", salt[i]);
printf("\n");
}
if (cipher->key_len > 0) {
printf("key=");
for (i = 0; i < cipher->key_len; i++)
printf("%02X", key[i]);
printf("\n");
}
if (cipher->iv_len > 0) {
printf("iv =");
for (i = 0; i < cipher->iv_len; i++)
printf("%02X", iv[i]);
printf("\n");
}
if (printkey == 2) {
ret = 0;
goto end;
}
}
}
/* Only encrypt/decrypt as we write the file */
if (benc != NULL)
wbio = BIO_push(benc, wbio);
for (;;) {
inl = BIO_read(rbio, (char *)buff, bsize);
if (inl <= 0)
break;
if (BIO_write(wbio, (char *)buff, inl) != inl) {
BIO_printf(bio_err, "error writing output file\n");
goto end;
}
}
if (!BIO_flush(wbio)) {
BIO_printf(bio_err, "bad decrypt\n");
goto end;
}
ret = 0;
if (verbose) {
BIO_printf(bio_err, "bytes read :%8"PRIu64"\n", BIO_number_read(in));
BIO_printf(bio_err, "bytes written:%8"PRIu64"\n", BIO_number_written(out));
}
end:
ERR_print_errors(bio_err);
OPENSSL_free(strbuf);
OPENSSL_free(buff);
BIO_free(in);
BIO_free_all(out);
BIO_free(benc);
BIO_free(b64);
#ifdef ZLIB
BIO_free(bzl);
#endif
OPENSSL_free(pass);
return (ret);
}
int
enc_main(int argc, char **argv)
{
static const char magic[] = "Salted__";
char mbuf[sizeof magic - 1];
char *strbuf = NULL, *pass = NULL;
unsigned char *buff = NULL;
int bsize = BSIZE;
int ret = 1, inl;
unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
unsigned char salt[PKCS5_SALT_LEN];
#ifdef ZLIB
BIO *bzl = NULL;
#endif
EVP_CIPHER_CTX *ctx = NULL;
const EVP_MD *dgst = NULL;
BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL;
BIO *rbio = NULL, *wbio = NULL;
#define PROG_NAME_SIZE 39
char pname[PROG_NAME_SIZE + 1];
int i;
if (single_execution) {
if (pledge("stdio rpath wpath cpath tty", NULL) == -1) {
perror("pledge");
exit(1);
}
}
memset(&enc_config, 0, sizeof(enc_config));
enc_config.enc = 1;
/* first check the program name */
program_name(argv[0], pname, sizeof(pname));
if (strcmp(pname, "base64") == 0)
enc_config.base64 = 1;
#ifdef ZLIB
if (strcmp(pname, "zlib") == 0)
enc_config.do_zlib = 1;
#endif
enc_config.cipher = EVP_get_cipherbyname(pname);
#ifdef ZLIB
if (!enc_config.do_zlib && !enc_config.base64 &&
enc_config.cipher == NULL && strcmp(pname, "enc") != 0)
#else
if (!enc_config.base64 && enc_config.cipher == NULL &&
strcmp(pname, "enc") != 0)
#endif
{
BIO_printf(bio_err, "%s is an unknown cipher\n", pname);
goto end;
}
if (options_parse(argc, argv, enc_options, NULL, NULL) != 0) {
enc_usage();
goto end;
}
if (enc_config.keyfile != NULL) {
static char buf[128];
FILE *infile;
infile = fopen(enc_config.keyfile, "r");
if (infile == NULL) {
BIO_printf(bio_err, "unable to read key from '%s'\n",
enc_config.keyfile);
goto end;
}
buf[0] = '\0';
if (!fgets(buf, sizeof buf, infile)) {
BIO_printf(bio_err, "unable to read key from '%s'\n",
enc_config.keyfile);
fclose(infile);
goto end;
}
fclose(infile);
i = strlen(buf);
if ((i > 0) && ((buf[i - 1] == '\n') || (buf[i - 1] == '\r')))
buf[--i] = '\0';
if ((i > 0) && ((buf[i - 1] == '\n') || (buf[i - 1] == '\r')))
buf[--i] = '\0';
if (i < 1) {
BIO_printf(bio_err, "zero length password\n");
goto end;
}
enc_config.keystr = buf;
}
if (enc_config.md != NULL &&
(dgst = EVP_get_digestbyname(enc_config.md)) == NULL) {
BIO_printf(bio_err,
"%s is an unsupported message digest type\n",
enc_config.md);
goto end;
}
if (dgst == NULL) {
dgst = EVP_md5(); /* XXX */
}
if (enc_config.bufsize != NULL) {
char *p = enc_config.bufsize;
unsigned long n;
/* XXX - provide an OPTION_ARG_DISKUNIT. */
for (n = 0; *p != '\0'; p++) {
i = *p;
if ((i <= '9') && (i >= '0'))
n = n * 10 + i - '0';
else if (i == 'k') {
n *= 1024;
p++;
break;
}
}
if (*p != '\0') {
BIO_printf(bio_err, "invalid 'bufsize' specified.\n");
goto end;
}
/* It must be large enough for a base64 encoded line. */
if (enc_config.base64 && n < 80)
n = 80;
bsize = (int)n;
if (enc_config.verbose)
BIO_printf(bio_err, "bufsize=%d\n", bsize);
}
strbuf = malloc(SIZE);
buff = malloc(EVP_ENCODE_LENGTH(bsize));
if ((buff == NULL) || (strbuf == NULL)) {
BIO_printf(bio_err, "malloc failure %ld\n", (long) EVP_ENCODE_LENGTH(bsize));
goto end;
}
in = BIO_new(BIO_s_file());
out = BIO_new(BIO_s_file());
if ((in == NULL) || (out == NULL)) {
ERR_print_errors(bio_err);
goto end;
}
if (enc_config.debug) {
BIO_set_callback(in, BIO_debug_callback);
BIO_set_callback(out, BIO_debug_callback);
BIO_set_callback_arg(in, (char *) bio_err);
BIO_set_callback_arg(out, (char *) bio_err);
}
if (enc_config.inf == NULL) {
if (enc_config.bufsize != NULL)
setvbuf(stdin, (char *) NULL, _IONBF, 0);
BIO_set_fp(in, stdin, BIO_NOCLOSE);
} else {
if (BIO_read_filename(in, enc_config.inf) <= 0) {
perror(enc_config.inf);
goto end;
}
}
if (!enc_config.keystr && enc_config.passarg) {
if (!app_passwd(bio_err, enc_config.passarg, NULL,
&pass, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
enc_config.keystr = pass;
}
if (enc_config.keystr == NULL && enc_config.cipher != NULL &&
enc_config.hkey == NULL) {
for (;;) {
char buf[200];
int retval;
retval = snprintf(buf, sizeof buf,
"enter %s %s password:"******"encryption" : "decryption");
if ((size_t)retval >= sizeof buf) {
BIO_printf(bio_err,
"Password prompt too long\n");
goto end;
}
strbuf[0] = '\0';
i = EVP_read_pw_string((char *)strbuf, SIZE, buf,
enc_config.enc);
if (i == 0) {
if (strbuf[0] == '\0') {
ret = 1;
goto end;
}
enc_config.keystr = strbuf;
break;
}
if (i < 0) {
BIO_printf(bio_err, "bad password read\n");
goto end;
}
}
}
if (enc_config.outf == NULL) {
BIO_set_fp(out, stdout, BIO_NOCLOSE);
if (enc_config.bufsize != NULL)
setvbuf(stdout, (char *)NULL, _IONBF, 0);
} else {
if (BIO_write_filename(out, enc_config.outf) <= 0) {
perror(enc_config.outf);
goto end;
}
}
rbio = in;
wbio = out;
#ifdef ZLIB
if (do_zlib) {
if ((bzl = BIO_new(BIO_f_zlib())) == NULL)
goto end;
if (enc)
wbio = BIO_push(bzl, wbio);
else
rbio = BIO_push(bzl, rbio);
}
#endif
if (enc_config.base64) {
if ((b64 = BIO_new(BIO_f_base64())) == NULL)
goto end;
if (enc_config.debug) {
BIO_set_callback(b64, BIO_debug_callback);
BIO_set_callback_arg(b64, (char *) bio_err);
}
if (enc_config.olb64)
BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
if (enc_config.enc)
wbio = BIO_push(b64, wbio);
else
rbio = BIO_push(b64, rbio);
}
if (enc_config.cipher != NULL) {
/*
* Note that keystr is NULL if a key was passed on the command
* line, so we get no salt in that case. Is this a bug?
*/
if (enc_config.keystr != NULL) {
/*
* Salt handling: if encrypting generate a salt and
* write to output BIO. If decrypting read salt from
* input BIO.
*/
unsigned char *sptr;
if (enc_config.nosalt)
sptr = NULL;
else {
if (enc_config.enc) {
if (enc_config.hsalt) {
if (!set_hex(enc_config.hsalt, salt, sizeof salt)) {
BIO_printf(bio_err,
"invalid hex salt value\n");
goto end;
}
} else
arc4random_buf(salt,
sizeof(salt));
/*
* If -P option then don't bother
* writing
*/
if ((enc_config.printkey != 2)
&& (BIO_write(wbio, magic,
sizeof magic - 1) != sizeof magic - 1
|| BIO_write(wbio,
(char *) salt,
sizeof salt) != sizeof salt)) {
BIO_printf(bio_err, "error writing output file\n");
goto end;
}
} else if (BIO_read(rbio, mbuf, sizeof mbuf) != sizeof mbuf
|| BIO_read(rbio,
(unsigned char *) salt,
sizeof salt) != sizeof salt) {
BIO_printf(bio_err, "error reading input file\n");
goto end;
} else if (memcmp(mbuf, magic, sizeof magic - 1)) {
BIO_printf(bio_err, "bad magic number\n");
goto end;
}
sptr = salt;
}
EVP_BytesToKey(enc_config.cipher, dgst, sptr,
(unsigned char *)enc_config.keystr,
strlen(enc_config.keystr), 1, key, iv);
/*
* zero the complete buffer or the string passed from
* the command line bug picked up by Larry J. Hughes
* Jr. <*****@*****.**>
*/
if (enc_config.keystr == strbuf)
explicit_bzero(enc_config.keystr, SIZE);
else
explicit_bzero(enc_config.keystr,
strlen(enc_config.keystr));
}
if (enc_config.hiv != NULL &&
!set_hex(enc_config.hiv, iv, sizeof iv)) {
BIO_printf(bio_err, "invalid hex iv value\n");
goto end;
}
if (enc_config.hiv == NULL && enc_config.keystr == NULL &&
EVP_CIPHER_iv_length(enc_config.cipher) != 0) {
/*
* No IV was explicitly set and no IV was generated
* during EVP_BytesToKey. Hence the IV is undefined,
* making correct decryption impossible.
*/
BIO_printf(bio_err, "iv undefined\n");
goto end;
}
if (enc_config.hkey != NULL &&
!set_hex(enc_config.hkey, key, sizeof key)) {
BIO_printf(bio_err, "invalid hex key value\n");
goto end;
}
if ((benc = BIO_new(BIO_f_cipher())) == NULL)
goto end;
/*
* Since we may be changing parameters work on the encryption
* context rather than calling BIO_set_cipher().
*/
BIO_get_cipher_ctx(benc, &ctx);
if (!EVP_CipherInit_ex(ctx, enc_config.cipher, NULL, NULL,
NULL, enc_config.enc)) {
BIO_printf(bio_err, "Error setting cipher %s\n",
EVP_CIPHER_name(enc_config.cipher));
ERR_print_errors(bio_err);
goto end;
}
if (enc_config.nopad)
EVP_CIPHER_CTX_set_padding(ctx, 0);
if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv,
enc_config.enc)) {
BIO_printf(bio_err, "Error setting cipher %s\n",
EVP_CIPHER_name(enc_config.cipher));
ERR_print_errors(bio_err);
goto end;
}
if (enc_config.debug) {
BIO_set_callback(benc, BIO_debug_callback);
BIO_set_callback_arg(benc, (char *) bio_err);
}
if (enc_config.printkey) {
if (!enc_config.nosalt) {
printf("salt=");
for (i = 0; i < (int) sizeof(salt); i++)
printf("%02X", salt[i]);
printf("\n");
}
if (enc_config.cipher->key_len > 0) {
printf("key=");
for (i = 0; i < enc_config.cipher->key_len; i++)
printf("%02X", key[i]);
printf("\n");
}
if (enc_config.cipher->iv_len > 0) {
printf("iv =");
for (i = 0; i < enc_config.cipher->iv_len; i++)
printf("%02X", iv[i]);
printf("\n");
}
if (enc_config.printkey == 2) {
ret = 0;
goto end;
}
}
}
/* Only encrypt/decrypt as we write the file */
if (benc != NULL)
wbio = BIO_push(benc, wbio);
for (;;) {
inl = BIO_read(rbio, (char *) buff, bsize);
if (inl <= 0)
break;
if (BIO_write(wbio, (char *) buff, inl) != inl) {
BIO_printf(bio_err, "error writing output file\n");
goto end;
}
}
if (!BIO_flush(wbio)) {
BIO_printf(bio_err, "bad decrypt\n");
goto end;
}
ret = 0;
if (enc_config.verbose) {
BIO_printf(bio_err, "bytes read :%8ld\n", BIO_number_read(in));
BIO_printf(bio_err, "bytes written:%8ld\n", BIO_number_written(out));
}
end:
ERR_print_errors(bio_err);
free(strbuf);
free(buff);
BIO_free(in);
if (out != NULL)
BIO_free_all(out);
BIO_free(benc);
BIO_free(b64);
#ifdef ZLIB
BIO_free(bzl);
#endif
free(pass);
return (ret);
}
bool send_metakey(connection_t *c) {
bool x;
int len = RSA_size(c->rsa_key);
/* Allocate buffers for the meta key */
char buffer[2 * len + 1];
c->outkey = xrealloc(c->outkey, len);
if(!c->outctx) {
c->outctx = EVP_CIPHER_CTX_new();
if(!c->outctx) {
abort();
}
}
/* Copy random data to the buffer */
if(1 != RAND_bytes((unsigned char *)c->outkey, len)) {
int err = ERR_get_error();
logger(LOG_ERR, "Failed to generate meta key (%s)", ERR_error_string(err, NULL));
return false;
}
/* The message we send must be smaller than the modulus of the RSA key.
By definition, for a key of k bits, the following formula holds:
2^(k-1) <= modulus < 2^(k)
Where ^ means "to the power of", not "xor".
This means that to be sure, we must choose our message < 2^(k-1).
This can be done by setting the most significant bit to zero.
*/
c->outkey[0] &= 0x7F;
ifdebug(SCARY_THINGS) {
bin2hex(c->outkey, buffer, len);
buffer[len * 2] = '\0';
logger(LOG_DEBUG, "Generated random meta key (unencrypted): %s",
buffer);
}
/* Encrypt the random data
We do not use one of the PKCS padding schemes here.
This is allowed, because we encrypt a totally random string
with a length equal to that of the modulus of the RSA key.
*/
if(RSA_public_encrypt(len, (unsigned char *)c->outkey, (unsigned char *)buffer, c->rsa_key, RSA_NO_PADDING) != len) {
logger(LOG_ERR, "Error during encryption of meta key for %s (%s): %s",
c->name, c->hostname, ERR_error_string(ERR_get_error(), NULL));
return false;
}
/* Convert the encrypted random data to a hexadecimal formatted string */
bin2hex(buffer, buffer, len);
buffer[len * 2] = '\0';
/* Send the meta key */
x = send_request(c, "%d %d %d %d %d %s", METAKEY,
c->outcipher ? EVP_CIPHER_nid(c->outcipher) : 0,
c->outdigest ? EVP_MD_type(c->outdigest) : 0, c->outmaclength,
c->outcompression, buffer);
/* Further outgoing requests are encrypted with the key we just generated */
if(c->outcipher) {
if(!EVP_EncryptInit(c->outctx, c->outcipher,
(unsigned char *)c->outkey + len - EVP_CIPHER_key_length(c->outcipher),
(unsigned char *)c->outkey + len - EVP_CIPHER_key_length(c->outcipher) -
EVP_CIPHER_iv_length(c->outcipher))) {
logger(LOG_ERR, "Error during initialisation of cipher for %s (%s): %s",
c->name, c->hostname, ERR_error_string(ERR_get_error(), NULL));
return false;
}
c->outbudget = byte_budget(c->outcipher);
c->status.encryptout = true;
}
return x;
}
int PEM_ASN1_write_bio(i2d_of_void *i2d, const char *name, BIO *bp,
void *x, const EVP_CIPHER *enc, unsigned char *kstr,
int klen, pem_password_cb *callback, void *u)
{
EVP_CIPHER_CTX *ctx = NULL;
int dsize = 0, i = 0, j = 0, ret = 0;
unsigned char *p, *data = NULL;
const char *objstr = NULL;
char buf[PEM_BUFSIZE];
unsigned char key[EVP_MAX_KEY_LENGTH];
unsigned char iv[EVP_MAX_IV_LENGTH];
if (enc != NULL) {
objstr = OBJ_nid2sn(EVP_CIPHER_nid(enc));
if (objstr == NULL || EVP_CIPHER_iv_length(enc) == 0
|| EVP_CIPHER_iv_length(enc) > (int)sizeof(iv)
/*
* Check "Proc-Type: 4,Encrypted\nDEK-Info: objstr,hex-iv\n"
* fits into buf
*/
|| (strlen(objstr) + 23 + 2 * EVP_CIPHER_iv_length(enc) + 13)
> sizeof(buf)) {
PEMerr(PEM_F_PEM_ASN1_WRITE_BIO, PEM_R_UNSUPPORTED_CIPHER);
goto err;
}
}
if ((dsize = i2d(x, NULL)) < 0) {
PEMerr(PEM_F_PEM_ASN1_WRITE_BIO, ERR_R_ASN1_LIB);
dsize = 0;
goto err;
}
/* dsize + 8 bytes are needed */
/* actually it needs the cipher block size extra... */
data = OPENSSL_malloc((unsigned int)dsize + 20);
if (data == NULL) {
PEMerr(PEM_F_PEM_ASN1_WRITE_BIO, ERR_R_MALLOC_FAILURE);
goto err;
}
p = data;
i = i2d(x, &p);
if (enc != NULL) {
if (kstr == NULL) {
if (callback == NULL)
klen = PEM_def_callback(buf, PEM_BUFSIZE, 1, u);
else
klen = (*callback) (buf, PEM_BUFSIZE, 1, u);
if (klen <= 0) {
PEMerr(PEM_F_PEM_ASN1_WRITE_BIO, PEM_R_READ_KEY);
goto err;
}
#ifdef CHARSET_EBCDIC
/* Convert the pass phrase from EBCDIC */
ebcdic2ascii(buf, buf, klen);
#endif
kstr = (unsigned char *)buf;
}
if (RAND_bytes(iv, EVP_CIPHER_iv_length(enc)) <= 0) /* Generate a salt */
goto err;
/*
* The 'iv' is used as the iv and as a salt. It is NOT taken from
* the BytesToKey function
*/
if (!EVP_BytesToKey(enc, EVP_md5(), iv, kstr, klen, 1, key, NULL))
goto err;
if (kstr == (unsigned char *)buf)
OPENSSL_cleanse(buf, PEM_BUFSIZE);
buf[0] = '\0';
PEM_proc_type(buf, PEM_TYPE_ENCRYPTED);
PEM_dek_info(buf, objstr, EVP_CIPHER_iv_length(enc), (char *)iv);
/* k=strlen(buf); */
ret = 1;
if ((ctx = EVP_CIPHER_CTX_new()) == NULL
|| !EVP_EncryptInit_ex(ctx, enc, NULL, key, iv)
|| !EVP_EncryptUpdate(ctx, data, &j, data, i)
|| !EVP_EncryptFinal_ex(ctx, &(data[j]), &i))
ret = 0;
if (ret == 0)
goto err;
i += j;
} else {
ret = 1;
buf[0] = '\0';
}
i = PEM_write_bio(bp, name, buf, data, i);
if (i <= 0)
ret = 0;
err:
OPENSSL_cleanse(key, sizeof(key));
OPENSSL_cleanse(iv, sizeof(iv));
EVP_CIPHER_CTX_free(ctx);
OPENSSL_cleanse(buf, PEM_BUFSIZE);
OPENSSL_clear_free(data, (unsigned int)dsize);
return ret;
}
int update_iv(KA_CTX *ctx, EVP_CIPHER_CTX *cipher_ctx, const BIGNUM *ssc)
{
BUF_MEM *sscbuf = NULL, *ivbuf = NULL;
const EVP_CIPHER *ivcipher = NULL, *oldcipher;
unsigned char *ssc_buf = NULL;
unsigned char *p;
int r = 0;
check(ctx, "Invalid arguments");
switch (EVP_CIPHER_nid(ctx->cipher)) {
case NID_aes_128_cbc:
if (!ivcipher)
ivcipher = EVP_aes_128_ecb();
/* fall through */
case NID_aes_192_cbc:
if (!ivcipher)
ivcipher = EVP_aes_192_ecb();
/* fall through */
case NID_aes_256_cbc:
if (!ivcipher)
ivcipher = EVP_aes_256_ecb();
/* For AES decryption the IV is not needed,
* so we always set it to the encryption IV=E(K_Enc, SSC) */
r = encode_ssc(ssc, ctx, &ssc_buf);
if (r < 0)
goto err;
sscbuf = BUF_MEM_create_init(ssc_buf, r);
if (!sscbuf)
goto err;
oldcipher = ctx->cipher;
ctx->cipher = ivcipher;
ivbuf = cipher_no_pad(ctx, cipher_ctx, ctx->k_enc, sscbuf, 1);
ctx->cipher = oldcipher;
if (!ivbuf)
goto err;
p = OPENSSL_realloc(ctx->iv, ivbuf->length);
if (!p)
goto err;
ctx->iv = p;
/* Flawfinder: ignore */
memcpy(ctx->iv, ivbuf->data, ivbuf->length);
break;
case NID_des_ede_cbc:
/* For 3DES encryption or decryption the IV is always NULL */
if (ctx->iv)
OPENSSL_free(ctx->iv);
ctx->iv = NULL;
break;
default:
log_err("Unknown cipher");
goto err;
}
r = 1;
err:
if (ssc_buf)
OPENSSL_free(ssc_buf);
if (sscbuf)
BUF_MEM_free(sscbuf);
if (ivbuf)
BUF_MEM_free(ivbuf);
return r;
}
jdoubleArray Java_de_blinkt_openvpn_core_NativeUtils_getOpenSSLSpeed(JNIEnv* env, jclass thiz, jstring algorithm, jint testnumber)
{
static const unsigned char key16[16] = {
0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0,
0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0, 0x12
};
const EVP_CIPHER *evp_cipher = NULL;
const char* alg = (*env)->GetStringUTFChars( env, algorithm , NULL ) ;
evp_cipher = EVP_get_cipherbyname(alg);
if (evp_cipher == NULL)
evp_md = EVP_get_digestbyname(alg);
if (evp_cipher == NULL && evp_md == NULL) {
// BIO_printf(bio_err, "%s: %s is an unknown cipher or digest\n", prog, opt_arg());
//jniThrowException(env, "java/security/NoSuchAlgorithmException", "Algorithm not found");
return NULL;
}
const char* name;
loopargs_t *loopargs = NULL;
int loopargs_len = 1;
int async_jobs=0;
loopargs = malloc(loopargs_len * sizeof(loopargs_t));
memset(loopargs, 0, loopargs_len * sizeof(loopargs_t));
jdoubleArray ret = (*env)->NewDoubleArray(env, 3);
if (testnum < 0 || testnum >= SIZE_NUM)
return NULL;
testnum = testnumber;
for (int i = 0; i < loopargs_len; i++) {
int misalign=0;
loopargs[i].buf_malloc = malloc((int)BUFSIZE + MAX_MISALIGNMENT + 1);
loopargs[i].buf2_malloc = malloc((int)BUFSIZE + MAX_MISALIGNMENT + 1);
/* Align the start of buffers on a 64 byte boundary */
loopargs[i].buf = loopargs[i].buf_malloc + misalign;
loopargs[i].buf2 = loopargs[i].buf2_malloc + misalign;
}
int count;
float d;
if (evp_cipher) {
name = OBJ_nid2ln(EVP_CIPHER_nid(evp_cipher));
/*
* -O3 -fschedule-insns messes up an optimization here!
* names[D_EVP] somehow becomes NULL
*/
for (int k = 0; k < loopargs_len; k++) {
loopargs[k].ctx = EVP_CIPHER_CTX_new();
if (decrypt)
EVP_DecryptInit_ex(loopargs[k].ctx, evp_cipher, NULL, key16, iv);
else
EVP_EncryptInit_ex(loopargs[k].ctx, evp_cipher, NULL, key16, iv);
EVP_CIPHER_CTX_set_padding(loopargs[k].ctx, 0);
}
Time_F(START);
pthread_t timer_thread;
if (pthread_create(&timer_thread, NULL, stop_run, NULL))
return NULL;
count = run_benchmark(async_jobs, EVP_Update_loop, loopargs);
d = Time_F(STOP);
for (int k = 0; k < loopargs_len; k++) {
EVP_CIPHER_CTX_free(loopargs[k].ctx);
}
}
if (evp_md) {
name = OBJ_nid2ln(EVP_MD_type(evp_md));
// print_message(names[D_EVP], save_count, lengths[testnum]);
pthread_t timer_thread;
if (pthread_create(&timer_thread, NULL, stop_run, NULL))
return NULL;
Time_F(START);
count = run_benchmark(async_jobs, EVP_Digest_loop, loopargs);
d = Time_F(STOP);
}
// Save results in hacky way
double results[] = {(double) lengths[testnum], (double) count, d};
(*env)->SetDoubleArrayRegion(env, ret, 0, 3, results);
// print_result(D_EVP, testnum, count, d);
return ret;
}
int PEM_ASN1_write_bio(i2d_of_void *i2d, const char *name, BIO *bp,
char *x, const EVP_CIPHER *enc, unsigned char *kstr,
int klen, pem_password_cb *callback, void *u)
{
EVP_CIPHER_CTX ctx;
int dsize=0,i,j,ret=0;
unsigned char *p,*data=NULL;
const char *objstr=NULL;
char buf[PEM_BUFSIZE];
unsigned char key[EVP_MAX_KEY_LENGTH];
unsigned char iv[EVP_MAX_IV_LENGTH];
if (enc != NULL)
{
objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
if (objstr == NULL)
{
PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
goto err;
}
}
if ((dsize=i2d(x,NULL)) < 0)
{
PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_ASN1_LIB);
dsize=0;
goto err;
}
/* dzise + 8 bytes are needed */
/* actually it needs the cipher block size extra... */
data=(unsigned char *)OPENSSL_malloc((unsigned int)dsize+20);
if (data == NULL)
{
PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE);
goto err;
}
p=data;
i=i2d(x,&p);
if (enc != NULL)
{
if (kstr == NULL)
{
if (callback == NULL)
klen=PEM_def_callback(buf,PEM_BUFSIZE,1,u);
else
klen=(*callback)(buf,PEM_BUFSIZE,1,u);
if (klen <= 0)
{
PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_READ_KEY);
goto err;
}
#ifdef CHARSET_EBCDIC
/* Convert the pass phrase from EBCDIC */
ebcdic2ascii(buf, buf, klen);
#endif
kstr=(unsigned char *)buf;
}
RAND_add(data,i,0);/* put in the RSA key. */
OPENSSL_assert(enc->iv_len <= (int)sizeof(iv));
if (RAND_pseudo_bytes(iv,enc->iv_len) < 0) /* Generate a salt */
goto err;
/* The 'iv' is used as the iv and as a salt. It is
* NOT taken from the BytesToKey function */
EVP_BytesToKey(enc,EVP_md5(),iv,kstr,klen,1,key,NULL);
if (kstr == (unsigned char *)buf) OPENSSL_cleanse(buf,PEM_BUFSIZE);
OPENSSL_assert(strlen(objstr)+23+2*enc->iv_len+13 <= sizeof buf);
buf[0]='\0';
PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv);
/* k=strlen(buf); */
EVP_CIPHER_CTX_init(&ctx);
EVP_EncryptInit_ex(&ctx,enc,NULL,key,iv);
EVP_EncryptUpdate(&ctx,data,&j,data,i);
EVP_EncryptFinal_ex(&ctx,&(data[j]),&i);
EVP_CIPHER_CTX_cleanup(&ctx);
i+=j;
ret=1;
}
else
{
ret=1;
buf[0]='\0';
}
i=PEM_write_bio(bp,name,buf,data,i);
if (i <= 0) ret=0;
err:
OPENSSL_cleanse(key,sizeof(key));
OPENSSL_cleanse(iv,sizeof(iv));
OPENSSL_cleanse((char *)&ctx,sizeof(ctx));
OPENSSL_cleanse(buf,PEM_BUFSIZE);
if (data != NULL)
{
OPENSSL_cleanse(data,(unsigned int)dsize);
OPENSSL_free(data);
}
return(ret);
}
int MAIN(int argc, char **argv)
{
static const char magic[]="Salted__";
char mbuf[8]; /* should be 1 smaller than magic */
char *strbuf=NULL;
unsigned char *buff=NULL,*bufsize=NULL;
int bsize=BSIZE,verbose=0;
int ret=1,inl;
unsigned char key[24],iv[MD5_DIGEST_LENGTH];
unsigned char salt[PKCS5_SALT_LEN];
char *str=NULL, *passarg = NULL, *pass = NULL;
char *hkey=NULL,*hiv=NULL,*hsalt = NULL;
int enc=1,printkey=0,i,base64=0;
int debug=0,olb64=0,nosalt=0;
const EVP_CIPHER *cipher=NULL,*c;
char *inf=NULL,*outf=NULL;
BIO *in=NULL,*out=NULL,*b64=NULL,*benc=NULL,*rbio=NULL,*wbio=NULL;
#define PROG_NAME_SIZE 39
char pname[PROG_NAME_SIZE+1];
apps_startup();
if (bio_err == NULL)
if ((bio_err=BIO_new(BIO_s_file())) != NULL)
BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
/* first check the program name */
program_name(argv[0],pname,PROG_NAME_SIZE);
if (strcmp(pname,"base64") == 0)
base64=1;
cipher=EVP_get_cipherbyname(pname);
if (!base64 && (cipher == NULL) && (strcmp(pname,"enc") != 0))
{
BIO_printf(bio_err,"%s is an unknown cipher\n",pname);
goto bad;
}
argc--;
argv++;
while (argc >= 1)
{
if (strcmp(*argv,"-e") == 0)
enc=1;
else if (strcmp(*argv,"-in") == 0)
{
if (--argc < 1) goto bad;
inf= *(++argv);
}
else if (strcmp(*argv,"-out") == 0)
{
if (--argc < 1) goto bad;
outf= *(++argv);
}
else if (strcmp(*argv,"-pass") == 0)
{
if (--argc < 1) goto bad;
passarg= *(++argv);
}
else if (strcmp(*argv,"-d") == 0)
enc=0;
else if (strcmp(*argv,"-p") == 0)
printkey=1;
else if (strcmp(*argv,"-v") == 0)
verbose=1;
else if (strcmp(*argv,"-salt") == 0)
nosalt=0;
else if (strcmp(*argv,"-nosalt") == 0)
nosalt=1;
else if (strcmp(*argv,"-debug") == 0)
debug=1;
else if (strcmp(*argv,"-P") == 0)
printkey=2;
else if (strcmp(*argv,"-A") == 0)
olb64=1;
else if (strcmp(*argv,"-a") == 0)
base64=1;
else if (strcmp(*argv,"-base64") == 0)
base64=1;
else if (strcmp(*argv,"-bufsize") == 0)
{
if (--argc < 1) goto bad;
bufsize=(unsigned char *)*(++argv);
}
else if (strcmp(*argv,"-k") == 0)
{
if (--argc < 1) goto bad;
str= *(++argv);
}
else if (strcmp(*argv,"-kfile") == 0)
{
static char buf[128];
FILE *infile;
char *file;
if (--argc < 1) goto bad;
file= *(++argv);
infile=fopen(file,"r");
if (infile == NULL)
{
BIO_printf(bio_err,"unable to read key from '%s'\n",
file);
goto bad;
}
buf[0]='\0';
fgets(buf,128,infile);
fclose(infile);
i=strlen(buf);
if ((i > 0) &&
((buf[i-1] == '\n') || (buf[i-1] == '\r')))
buf[--i]='\0';
if ((i > 0) &&
((buf[i-1] == '\n') || (buf[i-1] == '\r')))
buf[--i]='\0';
if (i < 1)
{
BIO_printf(bio_err,"zero length password\n");
goto bad;
}
str=buf;
}
else if (strcmp(*argv,"-K") == 0)
{
if (--argc < 1) goto bad;
hkey= *(++argv);
}
else if (strcmp(*argv,"-S") == 0)
{
if (--argc < 1) goto bad;
hsalt= *(++argv);
}
else if (strcmp(*argv,"-iv") == 0)
{
if (--argc < 1) goto bad;
hiv= *(++argv);
}
else if ((argv[0][0] == '-') &&
((c=EVP_get_cipherbyname(&(argv[0][1]))) != NULL))
{
cipher=c;
}
else if (strcmp(*argv,"-none") == 0)
cipher=NULL;
else
{
BIO_printf(bio_err,"unknown option '%s'\n",*argv);
bad:
BIO_printf(bio_err,"options are\n");
BIO_printf(bio_err,"%-14s input file\n","-in <file>");
BIO_printf(bio_err,"%-14s output file\n","-out <file>");
BIO_printf(bio_err,"%-14s pass phrase source\n","-pass <arg>");
BIO_printf(bio_err,"%-14s encrypt\n","-e");
BIO_printf(bio_err,"%-14s decrypt\n","-d");
BIO_printf(bio_err,"%-14s base64 encode/decode, depending on encryption flag\n","-a/-base64");
BIO_printf(bio_err,"%-14s key is the next argument\n","-k");
BIO_printf(bio_err,"%-14s key is the first line of the file argument\n","-kfile");
BIO_printf(bio_err,"%-14s key/iv in hex is the next argument\n","-K/-iv");
BIO_printf(bio_err,"%-14s print the iv/key (then exit if -P)\n","-[pP]");
BIO_printf(bio_err,"%-14s buffer size\n","-bufsize <n>");
BIO_printf(bio_err,"Cipher Types\n");
BIO_printf(bio_err,"des : 56 bit key DES encryption\n");
BIO_printf(bio_err,"des_ede :112 bit key ede DES encryption\n");
BIO_printf(bio_err,"des_ede3:168 bit key ede DES encryption\n");
#ifndef NO_IDEA
BIO_printf(bio_err,"idea :128 bit key IDEA encryption\n");
#endif
#ifndef NO_RC4
BIO_printf(bio_err,"rc2 :128 bit key RC2 encryption\n");
#endif
#ifndef NO_BF
BIO_printf(bio_err,"bf :128 bit key Blowfish encryption\n");
#endif
#ifndef NO_RC4
BIO_printf(bio_err," -%-5s :128 bit key RC4 encryption\n",
LN_rc4);
#endif
BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s",
LN_des_ecb,LN_des_cbc,
LN_des_cfb64,LN_des_ofb64);
BIO_printf(bio_err," -%-4s (%s)\n",
"des", LN_des_cbc);
BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s",
LN_des_ede,LN_des_ede_cbc,
LN_des_ede_cfb64,LN_des_ede_ofb64);
BIO_printf(bio_err," -desx -none\n");
BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s",
LN_des_ede3,LN_des_ede3_cbc,
LN_des_ede3_cfb64,LN_des_ede3_ofb64);
BIO_printf(bio_err," -%-4s (%s)\n",
"des3", LN_des_ede3_cbc);
#ifndef NO_IDEA
BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s",
LN_idea_ecb, LN_idea_cbc,
LN_idea_cfb64, LN_idea_ofb64);
BIO_printf(bio_err," -%-4s (%s)\n","idea",LN_idea_cbc);
#endif
#ifndef NO_RC2
BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s",
LN_rc2_ecb, LN_rc2_cbc,
LN_rc2_cfb64, LN_rc2_ofb64);
BIO_printf(bio_err," -%-4s (%s)\n","rc2", LN_rc2_cbc);
#endif
#ifndef NO_BF
BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s",
LN_bf_ecb, LN_bf_cbc,
LN_bf_cfb64, LN_bf_ofb64);
BIO_printf(bio_err," -%-4s (%s)\n","bf", LN_bf_cbc);
#endif
#ifndef NO_CAST
BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s",
LN_cast5_ecb, LN_cast5_cbc,
LN_cast5_cfb64, LN_cast5_ofb64);
BIO_printf(bio_err," -%-4s (%s)\n","cast", LN_cast5_cbc);
#endif
#ifndef NO_RC5
BIO_printf(bio_err," -%-12s -%-12s -%-12s -%-12s",
LN_rc5_ecb, LN_rc5_cbc,
LN_rc5_cfb64, LN_rc5_ofb64);
BIO_printf(bio_err," -%-4s (%s)\n","rc5", LN_rc5_cbc);
#endif
goto end;
}
argc--;
argv++;
}
if (bufsize != NULL)
{
unsigned long n;
for (n=0; *bufsize; bufsize++)
{
i= *bufsize;
if ((i <= '9') && (i >= '0'))
n=n*10+i-'0';
else if (i == 'k')
{
n*=1024;
bufsize++;
break;
}
}
if (*bufsize != '\0')
{
BIO_printf(bio_err,"invalid 'bufsize' specified.\n");
goto end;
}
/* It must be large enough for a base64 encoded line */
if (n < 80) n=80;
bsize=(int)n;
if (verbose) BIO_printf(bio_err,"bufsize=%d\n",bsize);
}
strbuf=OPENSSL_malloc(SIZE);
buff=(unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize));
if ((buff == NULL) || (strbuf == NULL))
{
BIO_printf(bio_err,"OPENSSL_malloc failure %ld\n",(long)EVP_ENCODE_LENGTH(bsize));
goto end;
}
in=BIO_new(BIO_s_file());
out=BIO_new(BIO_s_file());
if ((in == NULL) || (out == NULL))
{
ERR_print_errors(bio_err);
goto end;
}
if (debug)
{
BIO_set_callback(in,BIO_debug_callback);
BIO_set_callback(out,BIO_debug_callback);
BIO_set_callback_arg(in,bio_err);
BIO_set_callback_arg(out,bio_err);
}
if (inf == NULL)
BIO_set_fp(in,stdin,BIO_NOCLOSE);
else
{
if (BIO_read_filename(in,inf) <= 0)
{
perror(inf);
goto end;
}
}
if(!str && passarg) {
if(!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
str = pass;
}
if ((str == NULL) && (cipher != NULL) && (hkey == NULL))
{
for (;;)
{
char buf[200];
sprintf(buf,"enter %s %s password:"******"encryption":"decryption");
strbuf[0]='\0';
i=EVP_read_pw_string((char *)strbuf,SIZE,buf,enc);
if (i == 0)
{
if (strbuf[0] == '\0')
{
ret=1;
goto end;
}
str=strbuf;
break;
}
if (i < 0)
{
BIO_printf(bio_err,"bad password read\n");
goto end;
}
}
}
if (outf == NULL)
{
BIO_set_fp(out,stdout,BIO_NOCLOSE);
#ifdef VMS
{
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
out = BIO_push(tmpbio, out);
}
#endif
}
else
{
if (BIO_write_filename(out,outf) <= 0)
{
perror(outf);
goto end;
}
}
rbio=in;
wbio=out;
if (base64)
{
if ((b64=BIO_new(BIO_f_base64())) == NULL)
goto end;
if (debug)
{
BIO_set_callback(b64,BIO_debug_callback);
BIO_set_callback_arg(b64,bio_err);
}
if (olb64)
BIO_set_flags(b64,BIO_FLAGS_BASE64_NO_NL);
if (enc)
wbio=BIO_push(b64,wbio);
else
rbio=BIO_push(b64,rbio);
}
if (cipher != NULL)
{
if (str != NULL)
{
/* Salt handling: if encrypting generate a salt and
* write to output BIO. If decrypting read salt from
* input BIO.
*/
unsigned char *sptr;
if(nosalt) sptr = NULL;
else {
if(enc) {
if(hsalt) {
if(!set_hex(hsalt,salt,PKCS5_SALT_LEN)) {
BIO_printf(bio_err,
"invalid hex salt value\n");
goto end;
}
} else if (RAND_pseudo_bytes(salt, PKCS5_SALT_LEN) < 0)
goto end;
/* If -P option then don't bother writing */
if((printkey != 2)
&& (BIO_write(wbio,magic,
sizeof magic-1) != sizeof magic-1
|| BIO_write(wbio,
(char *)salt,
PKCS5_SALT_LEN) != PKCS5_SALT_LEN)) {
BIO_printf(bio_err,"error writing output file\n");
goto end;
}
} else if(BIO_read(rbio,mbuf,sizeof mbuf) != sizeof mbuf
|| BIO_read(rbio,
(unsigned char *)salt,
PKCS5_SALT_LEN) != PKCS5_SALT_LEN) {
BIO_printf(bio_err,"error reading input file\n");
goto end;
} else if(memcmp(mbuf,magic,sizeof magic-1)) {
BIO_printf(bio_err,"bad magic number\n");
goto end;
}
sptr = salt;
}
EVP_BytesToKey(cipher,EVP_md5(),sptr,
(unsigned char *)str,
strlen(str),1,key,iv);
/* zero the complete buffer or the string
* passed from the command line
* bug picked up by
* Larry J. Hughes Jr. <*****@*****.**> */
if (str == strbuf)
OPENSSL_cleanse(str,SIZE);
else
OPENSSL_cleanse(str,strlen(str));
}
if ((hiv != NULL) && !set_hex(hiv,iv,8))
{
BIO_printf(bio_err,"invalid hex iv value\n");
goto end;
}
if ((hiv == NULL) && (str == NULL))
{
/* No IV was explicitly set and no IV was generated
* during EVP_BytesToKey. Hence the IV is undefined,
* making correct decryption impossible. */
BIO_printf(bio_err, "iv undefined\n");
goto end;
}
if ((hkey != NULL) && !set_hex(hkey,key,24))
{
BIO_printf(bio_err,"invalid hex key value\n");
goto end;
}
if ((benc=BIO_new(BIO_f_cipher())) == NULL)
goto end;
BIO_set_cipher(benc,cipher,key,iv,enc);
if (debug)
{
BIO_set_callback(benc,BIO_debug_callback);
BIO_set_callback_arg(benc,bio_err);
}
if (printkey)
{
if (!nosalt)
{
printf("salt=");
for (i=0; i<PKCS5_SALT_LEN; i++)
printf("%02X",salt[i]);
printf("\n");
}
if (cipher->key_len > 0)
{
printf("key=");
for (i=0; i<cipher->key_len; i++)
printf("%02X",key[i]);
printf("\n");
}
if (cipher->iv_len > 0)
{
printf("iv =");
for (i=0; i<cipher->iv_len; i++)
printf("%02X",iv[i]);
printf("\n");
}
if (printkey == 2)
{
ret=0;
goto end;
}
}
}
/* Only encrypt/decrypt as we write the file */
if (benc != NULL)
wbio=BIO_push(benc,wbio);
for (;;)
{
inl=BIO_read(rbio,(char *)buff,bsize);
if (inl <= 0) break;
if (BIO_write(wbio,(char *)buff,inl) != inl)
{
BIO_printf(bio_err,"error writing output file\n");
goto end;
}
}
if (!BIO_flush(wbio))
{
BIO_printf(bio_err,"bad decrypt\n");
goto end;
}
ret=0;
if (verbose)
{
BIO_printf(bio_err,"bytes read :%8ld\n",BIO_number_read(in));
BIO_printf(bio_err,"bytes written:%8ld\n",BIO_number_written(out));
}
end:
ERR_print_errors(bio_err);
if (strbuf != NULL) OPENSSL_free(strbuf);
if (buff != NULL) OPENSSL_free(buff);
if (in != NULL) BIO_free(in);
if (out != NULL) BIO_free_all(out);
if (benc != NULL) BIO_free(benc);
if (b64 != NULL) BIO_free(b64);
if(pass) OPENSSL_free(pass);
OPENSSL_EXIT(ret);
}
