500 lines
20 KiB
C++
500 lines
20 KiB
C++
MODULE = CryptX PACKAGE = Crypt::PK::RSA
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PROTOTYPES: DISABLE
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Crypt::PK::RSA
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_new(Class)
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CODE:
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{
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int rv;
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Newz(0, RETVAL, 1, struct rsa_struct);
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if (!RETVAL) croak("FATAL: Newz failed");
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RETVAL->key.type = -1;
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RETVAL->pindex = find_prng("chacha20");
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if (RETVAL->pindex == -1) {
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Safefree(RETVAL);
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croak("FATAL: find_prng('chacha20') failed");
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}
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rv = rng_make_prng(320, RETVAL->pindex, &RETVAL->pstate, NULL); /* 320bits = 40bytes */
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if (rv != CRYPT_OK) {
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Safefree(RETVAL);
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croak("FATAL: rng_make_prng failed: %s", error_to_string(rv));
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}
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}
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OUTPUT:
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RETVAL
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void
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generate_key(Crypt::PK::RSA self, int key_size=256, long key_e=65537)
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PPCODE:
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{
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/* key_size is in octets */
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int rv;
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/* gen the key */
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rv = rsa_make_key(&self->pstate, self->pindex, key_size, key_e, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_make_key failed: %s", error_to_string(rv));
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XPUSHs(ST(0)); /* return self */
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}
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void
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_import(Crypt::PK::RSA self, SV * key_data)
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PPCODE:
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{
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int rv;
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unsigned char *data=NULL;
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STRLEN data_len=0;
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data = (unsigned char *)SvPVbyte(key_data, data_len);
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if (self->key.type != -1) { rsa_free(&self->key); self->key.type = -1; }
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rv = rsa_import(data, (unsigned long)data_len, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_import failed: %s", error_to_string(rv));
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XPUSHs(ST(0)); /* return self */
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}
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void
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_import_pkcs8(Crypt::PK::RSA self, SV * key_data, SV * passwd)
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PPCODE:
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{
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int rv;
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unsigned char *data=NULL, *pwd=NULL;
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STRLEN data_len=0, pwd_len=0;
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data = (unsigned char *)SvPVbyte(key_data, data_len);
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if (SvOK(passwd)) {
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pwd = (unsigned char *)SvPVbyte(passwd, pwd_len);
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}
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if (self->key.type != -1) { rsa_free(&self->key); self->key.type = -1; }
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rv = rsa_import_pkcs8(data, (unsigned long)data_len, pwd, (unsigned long)pwd_len, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_import_pkcs8 failed: %s", error_to_string(rv));
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XPUSHs(ST(0)); /* return self */
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}
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void
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_import_x509(Crypt::PK::RSA self, SV * key_data)
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PPCODE:
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{
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int rv;
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unsigned char *data=NULL;
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STRLEN data_len=0;
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data = (unsigned char *)SvPVbyte(key_data, data_len);
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if (self->key.type != -1) { rsa_free(&self->key); self->key.type = -1; }
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rv = rsa_import_x509(data, (unsigned long)data_len, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_import_x509 failed: %s", error_to_string(rv));
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XPUSHs(ST(0)); /* return self */
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}
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void
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_import_hex(Crypt::PK::RSA self, char *N, char *e, char *d=NULL, char *p=NULL, char *q=NULL, char *dP=NULL, char *dQ=NULL, char *qP=NULL)
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PPCODE:
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{
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int rv;
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unsigned char Nbin[1024], ebin[128], dbin[1024], pbin[512], qbin[512], dPbin[512], dQbin[512], qPbin[512];
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unsigned long Nlen=sizeof(Nbin), elen=sizeof(ebin), dlen=sizeof(dbin), plen=sizeof(pbin),
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qlen=sizeof(qbin), dPlen=sizeof(dPbin), dQlen=sizeof(dQbin), qPlen=sizeof(qPbin);
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rv = radix_to_bin(N, 16, Nbin, &Nlen);
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if (rv != CRYPT_OK) croak("FATAL: radix_to_bin(N) failed: %s", error_to_string(rv));
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rv = radix_to_bin(e, 16, ebin, &elen);
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if (rv != CRYPT_OK) croak("FATAL: radix_to_bin(e) failed: %s", error_to_string(rv));
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if (d && strlen(d) > 0) {
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/* private */
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rv = radix_to_bin(d, 16, dbin, &dlen);
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if (rv != CRYPT_OK) croak("FATAL: radix_to_bin(d) failed: %s", error_to_string(rv));
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rv = rsa_set_key(Nbin, Nlen, ebin, elen, dbin, dlen, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_set_key failed: %s", error_to_string(rv));
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}
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else {
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/* public */
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rv = rsa_set_key(Nbin, Nlen, ebin, elen, NULL, 0, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_set_key failed: %s", error_to_string(rv));
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}
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if (p && strlen(p) > 0 && q && strlen(q) > 0) {
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/* private only */
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rv = radix_to_bin(p, 16, pbin, &plen);
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if (rv != CRYPT_OK) croak("FATAL: radix_to_bin(p) failed: %s", error_to_string(rv));
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rv = radix_to_bin(q, 16, qbin, &qlen);
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if (rv != CRYPT_OK) croak("FATAL: radix_to_bin(q) failed: %s", error_to_string(rv));
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rv = rsa_set_factors(pbin, plen, qbin, qlen, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_set_factors failed: %s", error_to_string(rv));
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}
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if (dP && strlen(dP) > 0 && dQ && strlen(dQ) > 0 && qP && strlen(qP) > 0) {
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/* private only */
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rv = radix_to_bin(dP, 16, dPbin, &dPlen);
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if (rv != CRYPT_OK) croak("FATAL: radix_to_bin(dP) failed: %s", error_to_string(rv));
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rv = radix_to_bin(dQ, 16, dQbin, &dQlen);
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if (rv != CRYPT_OK) croak("FATAL: radix_to_bin(dQ) failed: %s", error_to_string(rv));
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rv = radix_to_bin(qP, 16, qPbin, &qPlen);
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if (rv != CRYPT_OK) croak("FATAL: radix_to_bin(qP) failed: %s", error_to_string(rv));
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rv = rsa_set_crt_params(dPbin, dPlen, dQbin, dQlen, qPbin, qPlen, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_set_crt_params failed: %s", error_to_string(rv));
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}
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XPUSHs(ST(0)); /* return self */
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}
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int
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is_private(Crypt::PK::RSA self)
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CODE:
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if (self->key.type == -1 || self->key.N == NULL) XSRETURN_UNDEF;
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RETVAL = (self->key.type == PK_PRIVATE) ? 1 : 0;
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OUTPUT:
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RETVAL
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int
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size(Crypt::PK::RSA self)
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CODE:
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if (self->key.type == -1 || self->key.N == NULL) XSRETURN_UNDEF;
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RETVAL = mp_unsigned_bin_size(self->key.N);
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OUTPUT:
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RETVAL
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SV*
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key2hash(Crypt::PK::RSA self)
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PREINIT:
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HV *rv_hash;
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long siz, nsize;
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char buf[20001];
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SV **not_used;
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CODE:
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if (self->key.type == -1 || self->key.N == NULL) XSRETURN_UNDEF;
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nsize = mp_unsigned_bin_size(self->key.N);
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rv_hash = newHV();
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/* e */
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siz = (self->key.e) ? mp_unsigned_bin_size(self->key.e) : 0;
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if (siz>10000) {
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croak("FATAL: key2hash failed - 'e' too big number");
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}
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if (siz>0) {
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mp_tohex_with_leading_zero(self->key.e, buf, 20000, 0);
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not_used = hv_store(rv_hash, "e", 1, newSVpv(buf, strlen(buf)), 0);
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}
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else{
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not_used = hv_store(rv_hash, "e", 1, newSVpv("", 0), 0);
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}
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/* d */
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siz = (self->key.d) ? mp_unsigned_bin_size(self->key.d) : 0;
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if (siz>10000) {
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croak("FATAL: key2hash failed - 'd' too big number");
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}
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if (siz>0) {
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mp_tohex_with_leading_zero(self->key.d, buf, 20000, 0);
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not_used = hv_store(rv_hash, "d", 1, newSVpv(buf, strlen(buf)), 0);
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}
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else{
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not_used = hv_store(rv_hash, "d", 1, newSVpv("", 0), 0);
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}
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/* N */
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siz = (self->key.N) ? nsize : 0;
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if (siz>10000) {
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croak("FATAL: key2hash failed - 'N' too big number");
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}
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if (siz>0) {
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mp_tohex_with_leading_zero(self->key.N, buf, 20000, 0);
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not_used = hv_store(rv_hash, "N", 1, newSVpv(buf, strlen(buf)), 0);
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}
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else{
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not_used = hv_store(rv_hash, "N", 1, newSVpv("", 0), 0);
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}
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/* q */
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siz = (self->key.q) ? mp_unsigned_bin_size(self->key.q) : 0;
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if (siz>10000) {
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croak("FATAL: key2hash failed - 'q' too big number");
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}
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if (siz>0) {
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mp_tohex_with_leading_zero(self->key.q, buf, 20000, 0);
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not_used = hv_store(rv_hash, "q", 1, newSVpv(buf, strlen(buf)), 0);
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}
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else{
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not_used = hv_store(rv_hash, "q", 1, newSVpv("", 0), 0);
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}
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/* p */
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siz = (self->key.p) ? mp_unsigned_bin_size(self->key.p) : 0;
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if (siz>10000) {
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croak("FATAL: key2hash failed - 'p' too big number");
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}
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if (siz>0) {
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mp_tohex_with_leading_zero(self->key.p, buf, 20000, 0);
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not_used = hv_store(rv_hash, "p", 1, newSVpv(buf, strlen(buf)), 0);
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}
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else{
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not_used = hv_store(rv_hash, "p", 1, newSVpv("", 0), 0);
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}
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/* qP */
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siz = (self->key.qP) ? mp_unsigned_bin_size(self->key.qP) : 0;
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if (siz>10000) {
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croak("FATAL: key2hash failed - 'qP' too big number");
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}
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if (siz>0) {
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mp_tohex_with_leading_zero(self->key.qP, buf, 20000, 0);
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not_used = hv_store(rv_hash, "qP", 2, newSVpv(buf, strlen(buf)), 0);
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}
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else{
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not_used = hv_store(rv_hash, "qP", 2, newSVpv("", 0), 0);
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}
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/* dP */
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siz = (self->key.dP) ? mp_unsigned_bin_size(self->key.dP) : 0;
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if (siz>10000) {
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croak("FATAL: key2hash failed - 'dP' too big number");
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}
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if (siz>0) {
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mp_tohex_with_leading_zero(self->key.dP, buf, 20000, 0);
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not_used = hv_store(rv_hash, "dP", 2, newSVpv(buf, strlen(buf)), 0);
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}
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else{
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not_used = hv_store(rv_hash, "dP", 2, newSVpv("", 0), 0);
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}
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/* dQ */
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siz = (self->key.dQ) ? mp_unsigned_bin_size(self->key.dQ) : 0;
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if (siz>10000) {
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croak("FATAL: key2hash failed - 'dQ' too big number");
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}
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if (siz>0) {
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mp_tohex_with_leading_zero(self->key.dQ, buf, 20000, 0);
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not_used = hv_store(rv_hash, "dQ", 2, newSVpv(buf, strlen(buf)), 0);
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}
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else{
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not_used = hv_store(rv_hash, "dQ", 2, newSVpv("", 0), 0);
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}
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/* size */
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not_used = hv_store(rv_hash, "size", 4, newSViv(nsize), 0);
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/* type */
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not_used = hv_store(rv_hash, "type", 4, newSViv(self->key.type), 0);
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LTC_UNUSED_PARAM(not_used);
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RETVAL = newRV_noinc((SV*)rv_hash);
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OUTPUT:
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RETVAL
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SV*
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export_key_der(Crypt::PK::RSA self, char * type)
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CODE:
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{
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int rv;
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unsigned char out[4096];
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unsigned long out_len = 4096;
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RETVAL = newSVpvn(NULL, 0); /* undef */
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if (strnEQ(type, "private", 7)) {
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rv = rsa_export(out, &out_len, PK_PRIVATE, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_export(PK_PRIVATE) failed: %s", error_to_string(rv));
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RETVAL = newSVpvn((char*)out, out_len);
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}
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else if (strnEQ(type, "public", 6)) {
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rv = rsa_export(out, &out_len, PK_PUBLIC|PK_STD, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_export(PK_PUBLIC|PK_STD) failed: %s", error_to_string(rv));
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RETVAL = newSVpvn((char*)out, out_len);
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}
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else {
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croak("FATAL: export_key_der invalid type '%s'", type);
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}
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}
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OUTPUT:
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RETVAL
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SV *
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encrypt(Crypt::PK::RSA self, SV * data, const char * padding = "oaep", const char * oaep_hash = "SHA1", SV * oaep_lparam = NULL)
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CODE:
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{
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int rv, hash_id;
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unsigned char *lparam_ptr=NULL;
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STRLEN lparam_len=0;
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unsigned char *data_ptr=NULL;
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STRLEN data_len=0;
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unsigned char buffer[1024];
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unsigned long buffer_len = 1024;
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data_ptr = (unsigned char *)SvPVbyte(data, data_len);
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RETVAL = newSVpvn(NULL, 0); /* undef */
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if (strnEQ(padding, "oaep", 4)) {
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hash_id = _find_hash(oaep_hash);
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if (hash_id == -1) croak("FATAL: find_hash failed for '%s'", oaep_hash);
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if (oaep_lparam) lparam_ptr = (unsigned char *)SvPVbyte(oaep_lparam, lparam_len);
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rv = rsa_encrypt_key_ex(data_ptr, (unsigned long)data_len, buffer, &buffer_len, lparam_ptr, (unsigned long)lparam_len,
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&self->pstate, self->pindex,
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hash_id, LTC_PKCS_1_OAEP, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_encrypt_key_ex failed: %s", error_to_string(rv));
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RETVAL = newSVpvn((char*)buffer, buffer_len);
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}
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else if (strnEQ(padding, "v1.5", 4)) {
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rv = rsa_encrypt_key_ex(data_ptr, (unsigned long)data_len, buffer, &buffer_len, NULL, 0,
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&self->pstate, self->pindex,
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0, LTC_PKCS_1_V1_5, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_encrypt_key_ex failed: %s", error_to_string(rv));
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RETVAL = newSVpvn((char*)buffer, buffer_len);
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}
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else if (strnEQ(padding, "none", 4)) {
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/* raw RSA */
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rv = ltc_mp.rsa_me(data_ptr, (unsigned long)data_len, buffer, &buffer_len, PK_PUBLIC, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_me failed: %s", error_to_string(rv));
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RETVAL = newSVpvn((char*)buffer, buffer_len);
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}
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else {
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croak("FATAL: rsa_encrypt invalid padding '%s'", padding);
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}
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}
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OUTPUT:
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RETVAL
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SV *
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decrypt(Crypt::PK::RSA self, SV * data, const char * padding = "oaep", const char * oaep_hash = "SHA1", SV * oaep_lparam = NULL)
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CODE:
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{
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int rv, hash_id, stat;
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unsigned char *lparam_ptr=NULL;
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STRLEN lparam_len=0;
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unsigned char *data_ptr=NULL;
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STRLEN data_len=0;
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unsigned char buffer[1024];
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unsigned long buffer_len = 1024;
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data_ptr = (unsigned char *)SvPVbyte(data, data_len);
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RETVAL = newSVpvn(NULL, 0); /* undef */
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if (strnEQ(padding, "oaep", 4)) {
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hash_id = _find_hash(oaep_hash);
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if (hash_id == -1) croak("FATAL: find_hash failed for '%s'", oaep_hash);
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if (oaep_lparam) lparam_ptr = (unsigned char *)SvPVbyte(oaep_lparam, lparam_len);
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rv = rsa_decrypt_key_ex(data_ptr, (unsigned long)data_len, buffer, &buffer_len, lparam_ptr, (unsigned long)lparam_len,
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hash_id, LTC_PKCS_1_OAEP, &stat, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_decrypt_key_ex failed: %s", error_to_string(rv));
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if (stat != 1) croak("FATAL: rsa_decrypt - not valid OAEP packet");
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RETVAL = newSVpvn((char*)buffer, buffer_len);
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}
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else if (strnEQ(padding, "v1.5", 4)) {
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rv = rsa_decrypt_key_ex(data_ptr, (unsigned long)data_len, buffer, &buffer_len, NULL, 0,
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0, LTC_PKCS_1_V1_5, &stat, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_decrypt_key_ex failed: %s", error_to_string(rv));
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if (stat != 1) croak("FATAL: rsa_decrypt - invalid");
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RETVAL = newSVpvn((char*)buffer, buffer_len);
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}
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else if (strnEQ(padding, "none", 4)) {
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/* raw RSA */
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rv = ltc_mp.rsa_me(data_ptr, (unsigned long)data_len, buffer, &buffer_len, PK_PRIVATE, &self->key);
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if (rv != CRYPT_OK) croak("FATAL: rsa_me failed: %s", error_to_string(rv));
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RETVAL = newSVpvn((char*)buffer, buffer_len);
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}
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else {
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croak("FATAL: rsa_encrypt invalid padding '%s'", padding);
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}
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}
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OUTPUT:
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RETVAL
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SV *
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sign_hash(Crypt::PK::RSA self, SV * data, const char * hash_name = "SHA1", const char * padding = "pss", unsigned long saltlen=12)
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ALIAS:
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sign_message = 1
|
|
CODE:
|
|
{
|
|
int rv, hash_id;
|
|
unsigned char buffer[1024], tmp[MAXBLOCKSIZE], *data_ptr = NULL;
|
|
unsigned long tmp_len = MAXBLOCKSIZE, buffer_len = 1024;
|
|
STRLEN data_len = 0;
|
|
|
|
data_ptr = (unsigned char *)SvPVbyte(data, data_len);
|
|
if (ix == 1) {
|
|
hash_id = _find_hash(hash_name);
|
|
if (hash_id == -1) croak("FATAL: find_hash failed for '%s'", hash_name);
|
|
rv = hash_memory(hash_id, data_ptr, (unsigned long)data_len, tmp, &tmp_len);
|
|
if (rv != CRYPT_OK) croak("FATAL: hash_memory failed: %s", error_to_string(rv));
|
|
data_ptr = tmp;
|
|
data_len = tmp_len;
|
|
}
|
|
if (strnEQ(padding, "pss", 3)) {
|
|
hash_id = _find_hash(hash_name);
|
|
if (hash_id == -1) croak("FATAL: find_hash failed for '%s'", hash_name);
|
|
rv = rsa_sign_hash_ex(data_ptr, (unsigned long)data_len, buffer, &buffer_len, LTC_PKCS_1_PSS,
|
|
&self->pstate, self->pindex,
|
|
hash_id, saltlen, &self->key);
|
|
if (rv != CRYPT_OK) croak("FATAL: rsa_sign_hash_ex failed: %s", error_to_string(rv));
|
|
RETVAL = newSVpvn((char*)buffer, buffer_len);
|
|
}
|
|
else if (strnEQ(padding, "v1.5", 4)) {
|
|
hash_id = _find_hash(hash_name);
|
|
if (hash_id == -1) croak("FATAL: find_hash failed for '%s'", hash_name);
|
|
rv = rsa_sign_hash_ex(data_ptr, (unsigned long)data_len, buffer, &buffer_len, LTC_PKCS_1_V1_5,
|
|
&self->pstate, self->pindex,
|
|
hash_id, 0, &self->key);
|
|
if (rv != CRYPT_OK) croak("FATAL: rsa_sign_hash_ex failed: %s", error_to_string(rv));
|
|
RETVAL = newSVpvn((char*)buffer, buffer_len);
|
|
}
|
|
else if (strnEQ(padding, "none", 4)) {
|
|
/* raw RSA */
|
|
rv = ltc_mp.rsa_me(data_ptr, (unsigned long)data_len, buffer, &buffer_len, PK_PRIVATE, &self->key);
|
|
if (rv != CRYPT_OK) croak("FATAL: rsa_me failed: %s", error_to_string(rv));
|
|
RETVAL = newSVpvn((char*)buffer, buffer_len);
|
|
}
|
|
else {
|
|
croak("FATAL: rsa_sign invalid padding '%s'", padding);
|
|
}
|
|
}
|
|
OUTPUT:
|
|
RETVAL
|
|
|
|
int
|
|
verify_hash(Crypt::PK::RSA self, SV * sig, SV * data, const char * hash_name = "SHA1", const char * padding = "pss", unsigned long saltlen = 12)
|
|
ALIAS:
|
|
verify_message = 1
|
|
CODE:
|
|
{
|
|
int rv, hash_id, stat;
|
|
unsigned char tmp[MAXBLOCKSIZE], buffer[1024], *data_ptr = NULL, *sig_ptr = NULL;
|
|
unsigned long i, tmp_len = MAXBLOCKSIZE, buffer_len = 1024;
|
|
STRLEN data_len = 0, sig_len = 0;
|
|
|
|
data_ptr = (unsigned char *)SvPVbyte(data, data_len);
|
|
sig_ptr = (unsigned char *)SvPVbyte(sig, sig_len);
|
|
if (ix == 1) {
|
|
hash_id = _find_hash(hash_name);
|
|
if (hash_id == -1) croak("FATAL: find_hash failed for '%s'", hash_name);
|
|
rv = hash_memory(hash_id, data_ptr, (unsigned long)data_len, tmp, &tmp_len);
|
|
if (rv != CRYPT_OK) croak("FATAL: hash_memory failed: %s", error_to_string(rv));
|
|
data_ptr = tmp;
|
|
data_len = tmp_len;
|
|
}
|
|
RETVAL = 1;
|
|
stat = 0;
|
|
if (strnEQ(padding, "pss", 3)) {
|
|
hash_id = _find_hash(hash_name);
|
|
if (hash_id == -1) croak("FATAL: find_hash failed for '%s'", hash_name);
|
|
rv = rsa_verify_hash_ex(sig_ptr, (unsigned long)sig_len, data_ptr, (unsigned long)data_len, LTC_PKCS_1_PSS,
|
|
hash_id, saltlen, &stat, &self->key);
|
|
if (rv != CRYPT_OK || stat != 1) RETVAL = 0;
|
|
}
|
|
else if (strnEQ(padding, "v1.5", 4)) {
|
|
hash_id = _find_hash(hash_name);
|
|
if (hash_id == -1) croak("FATAL: find_hash failed for '%s'", hash_name);
|
|
rv = rsa_verify_hash_ex(sig_ptr, (unsigned long)sig_len, data_ptr, (unsigned long)data_len, LTC_PKCS_1_V1_5,
|
|
hash_id, 0, &stat, &self->key);
|
|
if (rv != CRYPT_OK || stat != 1) RETVAL = 0;
|
|
}
|
|
else if (strnEQ(padding, "none", 4)) {
|
|
/* raw RSA */
|
|
Zero(buffer, buffer_len, unsigned char);
|
|
rv = ltc_mp.rsa_me(sig_ptr, (unsigned long)sig_len, buffer, &buffer_len, PK_PUBLIC, &self->key);
|
|
if (rv != CRYPT_OK) croak("FATAL: rsa_me failed: %s", error_to_string(rv));
|
|
if (data_len <= buffer_len && buffer_len > 0 && data_len > 0) {
|
|
for (i = 0; i < buffer_len - data_len; i++) if (buffer[i] != 0) RETVAL = 0;
|
|
if (memNE(data_ptr, buffer + buffer_len - data_len, data_len)) RETVAL = 0;
|
|
}
|
|
else {
|
|
RETVAL = 0;
|
|
}
|
|
}
|
|
else {
|
|
croak("FATAL: rsa_verify invalid padding '%s'", padding);
|
|
}
|
|
}
|
|
OUTPUT:
|
|
RETVAL
|
|
|
|
void
|
|
DESTROY(Crypt::PK::RSA self)
|
|
CODE:
|
|
if (self->key.type != -1) { rsa_free(&self->key); self->key.type = -1; }
|
|
Safefree(self);
|