static VALUE ossl_ec_key_to_string(VALUE self, int format)
{
EC_KEY *ec;
BIO *out;
int i = -1;
int private = 0;
#if 0 /* unused now */
EVP_CIPHER *cipher = NULL;
char *password = NULL;
#endif
VALUE str;
Require_EC_KEY(self, ec);
if (EC_KEY_get0_public_key(ec) == NULL)
rb_raise(eECError, "can't export - no public key set");
if (EC_KEY_check_key(ec) != 1)
ossl_raise(eECError, "can't export - EC_KEY_check_key failed");
if (EC_KEY_get0_private_key(ec))
private = 1;
if (!(out = BIO_new(BIO_s_mem())))
ossl_raise(eECError, "BIO_new(BIO_s_mem())");
switch(format) {
case EXPORT_PEM:
if (private) {
#if 0 /* unused now */
if (cipher || password)
/* BUG: finish cipher/password key export */
rb_notimplement();
i = PEM_write_bio_ECPrivateKey(out, ec, cipher, NULL, 0, NULL, password);
#endif
i = PEM_write_bio_ECPrivateKey(out, ec, NULL, NULL, 0, NULL, NULL);
} else {
#if 0 /* unused now */
if (cipher || password)
rb_raise(rb_eArgError, "encryption is not supported when exporting this key type");
#endif
i = PEM_write_bio_EC_PUBKEY(out, ec);
}
break;
case EXPORT_DER:
if (private) {
#if 0 /* unused now */
if (cipher || password)
rb_raise(rb_eArgError, "encryption is not supported when exporting this key type");
#endif
i = i2d_ECPrivateKey_bio(out, ec);
} else {
#if 0 /* unused now */
if (cipher || password)
static VALUE ossl_ec_key_to_string(VALUE self, VALUE ciph, VALUE pass, int format)
{
EC_KEY *ec;
BIO *out;
int i = -1;
int private = 0;
char *password = NULL;
VALUE str;
Require_EC_KEY(self, ec);
if (EC_KEY_get0_public_key(ec) == NULL)
ossl_raise(eECError, "can't export - no public key set");
if (EC_KEY_check_key(ec) != 1)
ossl_raise(eECError, "can't export - EC_KEY_check_key failed");
if (EC_KEY_get0_private_key(ec))
private = 1;
if (!(out = BIO_new(BIO_s_mem())))
ossl_raise(eECError, "BIO_new(BIO_s_mem())");
switch(format) {
case EXPORT_PEM:
if (private) {
const EVP_CIPHER *cipher;
if (!NIL_P(ciph)) {
cipher = GetCipherPtr(ciph);
if (!NIL_P(pass)) {
StringValue(pass);
if (RSTRING_LENINT(pass) < OSSL_MIN_PWD_LEN)
ossl_raise(eOSSLError, "OpenSSL requires passwords to be at least four characters long");
password = RSTRING_PTR(pass);
}
}
else {
cipher = NULL;
}
i = PEM_write_bio_ECPrivateKey(out, ec, cipher, NULL, 0, NULL, password);
} else {
i = PEM_write_bio_EC_PUBKEY(out, ec);
}
break;
case EXPORT_DER:
if (private) {
i = i2d_ECPrivateKey_bio(out, ec);
} else {
static VALUE ossl_ec_key_to_string(VALUE self, VALUE ciph, VALUE pass, int format)
{
EC_KEY *ec;
BIO *out;
int i = -1;
int private = 0;
VALUE str;
Require_EC_KEY(self, ec);
if (EC_KEY_get0_public_key(ec) == NULL)
ossl_raise(eECError, "can't export - no public key set");
if (EC_KEY_check_key(ec) != 1)
ossl_raise(eECError, "can't export - EC_KEY_check_key failed");
if (EC_KEY_get0_private_key(ec))
private = 1;
if (!(out = BIO_new(BIO_s_mem())))
ossl_raise(eECError, "BIO_new(BIO_s_mem())");
switch(format) {
case EXPORT_PEM:
if (private) {
const EVP_CIPHER *cipher = NULL;
if (!NIL_P(ciph)) {
cipher = GetCipherPtr(ciph);
pass = ossl_pem_passwd_value(pass);
}
i = PEM_write_bio_ECPrivateKey(out, ec, cipher, NULL, 0, ossl_pem_passwd_cb, (void *)pass);
} else {
i = PEM_write_bio_EC_PUBKEY(out, ec);
}
break;
case EXPORT_DER:
if (private) {
i = i2d_ECPrivateKey_bio(out, ec);
} else {
int MAIN(int argc, char **argv)
{
int ret = 1;
EC_KEY *eckey = NULL;
const EC_GROUP *group;
int i, badops = 0;
const EVP_CIPHER *enc = NULL;
BIO *in = NULL, *out = NULL;
int informat, outformat, text = 0, noout = 0;
int pubin = 0, pubout = 0, param_out = 0;
char *infile, *outfile, *prog, *engine;
char *passargin = NULL, *passargout = NULL;
char *passin = NULL, *passout = NULL;
point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
int new_form = 0;
int asn1_flag = OPENSSL_EC_NAMED_CURVE;
int new_asn1_flag = 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;
engine = NULL;
infile = NULL;
outfile = NULL;
informat = FORMAT_PEM;
outformat = FORMAT_PEM;
prog = argv[0];
argc--;
argv++;
while (argc >= 1) {
if (strcmp(*argv, "-inform") == 0) {
if (--argc < 1)
goto bad;
informat = str2fmt(*(++argv));
} else if (strcmp(*argv, "-outform") == 0) {
if (--argc < 1)
goto bad;
outformat = str2fmt(*(++argv));
} else if (strcmp(*argv, "-in") == 0) {
if (--argc < 1)
goto bad;
infile = *(++argv);
} else if (strcmp(*argv, "-out") == 0) {
if (--argc < 1)
goto bad;
outfile = *(++argv);
} else if (strcmp(*argv, "-passin") == 0) {
if (--argc < 1)
goto bad;
passargin = *(++argv);
} else if (strcmp(*argv, "-passout") == 0) {
if (--argc < 1)
goto bad;
passargout = *(++argv);
} else if (strcmp(*argv, "-engine") == 0) {
if (--argc < 1)
goto bad;
engine = *(++argv);
} else if (strcmp(*argv, "-noout") == 0)
noout = 1;
else if (strcmp(*argv, "-text") == 0)
text = 1;
else if (strcmp(*argv, "-conv_form") == 0) {
if (--argc < 1)
goto bad;
++argv;
new_form = 1;
if (strcmp(*argv, "compressed") == 0)
form = POINT_CONVERSION_COMPRESSED;
else if (strcmp(*argv, "uncompressed") == 0)
form = POINT_CONVERSION_UNCOMPRESSED;
else if (strcmp(*argv, "hybrid") == 0)
form = POINT_CONVERSION_HYBRID;
else
goto bad;
} else if (strcmp(*argv, "-param_enc") == 0) {
if (--argc < 1)
goto bad;
++argv;
new_asn1_flag = 1;
if (strcmp(*argv, "named_curve") == 0)
asn1_flag = OPENSSL_EC_NAMED_CURVE;
else if (strcmp(*argv, "explicit") == 0)
asn1_flag = 0;
else
goto bad;
} else if (strcmp(*argv, "-param_out") == 0)
param_out = 1;
else if (strcmp(*argv, "-pubin") == 0)
pubin = 1;
else if (strcmp(*argv, "-pubout") == 0)
pubout = 1;
else if ((enc = EVP_get_cipherbyname(&(argv[0][1]))) == NULL) {
BIO_printf(bio_err, "unknown option %s\n", *argv);
badops = 1;
break;
}
argc--;
argv++;
}
if (badops) {
bad:
BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog);
BIO_printf(bio_err, "where options are\n");
BIO_printf(bio_err, " -inform arg input format - "
"DER or PEM\n");
BIO_printf(bio_err, " -outform arg output format - "
"DER or PEM\n");
BIO_printf(bio_err, " -in arg input file\n");
BIO_printf(bio_err, " -passin arg input file pass "
"phrase source\n");
BIO_printf(bio_err, " -out arg output file\n");
BIO_printf(bio_err, " -passout arg output file pass "
"phrase source\n");
BIO_printf(bio_err, " -engine e use engine e, "
"possibly a hardware device.\n");
BIO_printf(bio_err, " -des encrypt PEM output, "
"instead of 'des' every other \n"
" cipher "
"supported by OpenSSL can be used\n");
BIO_printf(bio_err, " -text print the key\n");
BIO_printf(bio_err, " -noout don't print key out\n");
BIO_printf(bio_err, " -param_out print the elliptic "
"curve parameters\n");
BIO_printf(bio_err, " -conv_form arg specifies the "
"point conversion form \n");
BIO_printf(bio_err, " possible values:"
" compressed\n");
BIO_printf(bio_err, " "
" uncompressed (default)\n");
BIO_printf(bio_err, " " " hybrid\n");
BIO_printf(bio_err, " -param_enc arg specifies the way"
" the ec parameters are encoded\n");
BIO_printf(bio_err, " in the asn1 der " "encoding\n");
BIO_printf(bio_err, " possible values:"
" named_curve (default)\n");
BIO_printf(bio_err, " "
"explicit\n");
goto end;
}
ERR_load_crypto_strings();
# ifndef OPENSSL_NO_ENGINE
setup_engine(bio_err, engine, 0);
# endif
if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
BIO_printf(bio_err, "Error getting passwords\n");
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 (infile == NULL)
BIO_set_fp(in, stdin, BIO_NOCLOSE);
else {
if (BIO_read_filename(in, infile) <= 0) {
perror(infile);
goto end;
}
}
BIO_printf(bio_err, "read EC key\n");
if (informat == FORMAT_ASN1) {
if (pubin)
eckey = d2i_EC_PUBKEY_bio(in, NULL);
else
eckey = d2i_ECPrivateKey_bio(in, NULL);
} else if (informat == FORMAT_PEM) {
if (pubin)
eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, NULL);
else
eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, passin);
} else {
BIO_printf(bio_err, "bad input format specified for key\n");
goto end;
}
if (eckey == NULL) {
BIO_printf(bio_err, "unable to load Key\n");
ERR_print_errors(bio_err);
goto end;
}
if (outfile == NULL) {
BIO_set_fp(out, stdout, BIO_NOCLOSE);
# ifdef OPENSSL_SYS_VMS
{
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
out = BIO_push(tmpbio, out);
}
# endif
} else {
if (BIO_write_filename(out, outfile) <= 0) {
perror(outfile);
goto end;
}
}
group = EC_KEY_get0_group(eckey);
if (new_form)
EC_KEY_set_conv_form(eckey, form);
if (new_asn1_flag)
EC_KEY_set_asn1_flag(eckey, asn1_flag);
if (text)
if (!EC_KEY_print(out, eckey, 0)) {
perror(outfile);
ERR_print_errors(bio_err);
goto end;
}
if (noout) {
ret = 0;
goto end;
}
BIO_printf(bio_err, "writing EC key\n");
if (outformat == FORMAT_ASN1) {
if (param_out)
i = i2d_ECPKParameters_bio(out, group);
else if (pubin || pubout)
i = i2d_EC_PUBKEY_bio(out, eckey);
else
i = i2d_ECPrivateKey_bio(out, eckey);
} else if (outformat == FORMAT_PEM) {
if (param_out)
i = PEM_write_bio_ECPKParameters(out, group);
else if (pubin || pubout)
i = PEM_write_bio_EC_PUBKEY(out, eckey);
else
i = PEM_write_bio_ECPrivateKey(out, eckey, enc,
NULL, 0, NULL, passout);
} else {
BIO_printf(bio_err, "bad output format specified for " "outfile\n");
goto end;
}
if (!i) {
BIO_printf(bio_err, "unable to write private key\n");
ERR_print_errors(bio_err);
} else
ret = 0;
end:
if (in)
BIO_free(in);
if (out)
BIO_free_all(out);
if (eckey)
EC_KEY_free(eckey);
if (passin)
OPENSSL_free(passin);
if (passout)
OPENSSL_free(passout);
apps_shutdown();
OPENSSL_EXIT(ret);
}
static LUA_FUNCTION(openssl_pkey_export)
{
EVP_PKEY * key;
int ispriv = 0;
int exraw = 0;
int expem = 1;
size_t passphrase_len = 0;
BIO * bio_out = NULL;
int ret = 0;
const EVP_CIPHER * cipher;
const char * passphrase = NULL;
key = CHECK_OBJECT(1, EVP_PKEY, "openssl.evp_pkey");
ispriv = openssl_pkey_is_private(key);
if (!lua_isnoneornil(L, 2))
expem = lua_toboolean(L, 2);
if (expem)
{
if (!lua_isnoneornil(L, 3))
exraw = lua_toboolean(L, 3);
passphrase = luaL_optlstring(L, 4, NULL, &passphrase_len);
} else
{
passphrase = luaL_optlstring(L, 3, NULL, &passphrase_len);
}
if (passphrase)
{
cipher = (EVP_CIPHER *) EVP_des_ede3_cbc();
}
else
{
cipher = NULL;
}
bio_out = BIO_new(BIO_s_mem());
if (expem)
{
if (exraw==0)
{
ret = ispriv ?
PEM_write_bio_PrivateKey(bio_out, key, cipher, (unsigned char *)passphrase, passphrase_len, NULL, NULL) :
PEM_write_bio_PUBKEY(bio_out, key);
}
else
{
/* export raw key format */
switch (EVP_PKEY_type(key->type))
{
case EVP_PKEY_RSA:
case EVP_PKEY_RSA2:
ret = ispriv ? PEM_write_bio_RSAPrivateKey(bio_out, key->pkey.rsa, cipher, (unsigned char *)passphrase, passphrase_len, NULL, NULL)
: PEM_write_bio_RSAPublicKey(bio_out, key->pkey.rsa);
break;
case EVP_PKEY_DSA:
case EVP_PKEY_DSA2:
case EVP_PKEY_DSA3:
case EVP_PKEY_DSA4:
{
ret = ispriv ? PEM_write_bio_DSAPrivateKey(bio_out, key->pkey.dsa, cipher, (unsigned char *)passphrase, passphrase_len, NULL, NULL)
: PEM_write_bio_DSA_PUBKEY(bio_out, key->pkey.dsa);
}
break;
case EVP_PKEY_DH:
ret = PEM_write_bio_DHparams(bio_out, key->pkey.dh);
break;
#ifndef OPENSSL_NO_EC
case EVP_PKEY_EC:
ret = ispriv ? PEM_write_bio_ECPrivateKey(bio_out, key->pkey.ec, cipher, (unsigned char *)passphrase, passphrase_len, NULL, NULL)
: PEM_write_bio_EC_PUBKEY(bio_out, key->pkey.ec);
break;
#endif
default:
ret = 0;
break;
}
}
}
else
{
if (ispriv)
{
if (passphrase == NULL)
{
ret = i2d_PrivateKey_bio(bio_out, key);
} else
{
ret = i2d_PKCS8PrivateKey_bio(bio_out, key, cipher, (char *)passphrase, passphrase_len, NULL, NULL);
}
} else
{
int l;
l = i2d_PublicKey(key, NULL);
if (l > 0)
{
unsigned char* p = malloc(l);
unsigned char* pp = p;
l = i2d_PublicKey(key, &pp);
if (l > 0)
{
BIO_write(bio_out, p, l);
ret = 1;
} else
ret = 0;
free(p);
} else
ret = 0;
}
}
if (ret)
{
char * bio_mem_ptr;
long bio_mem_len;
bio_mem_len = BIO_get_mem_data(bio_out, &bio_mem_ptr);
lua_pushlstring(L, bio_mem_ptr, bio_mem_len);
ret = 1;
}
if (bio_out)
{
BIO_free(bio_out);
}
return ret;
}
