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-rw-r--r--libtransport/includes/hicn/transport/security/signer.h7
-rw-r--r--libtransport/includes/hicn/transport/security/verifier.h11
-rw-r--r--libtransport/src/security/signer.cc44
-rw-r--r--libtransport/src/security/verifier.cc121
-rw-r--r--telemetry/vpp-collectd/vpp/vpp.c4
5 files changed, 91 insertions, 96 deletions
diff --git a/libtransport/includes/hicn/transport/security/signer.h b/libtransport/includes/hicn/transport/security/signer.h
index 31b21462b..45bcdb516 100644
--- a/libtransport/includes/hicn/transport/security/signer.h
+++ b/libtransport/includes/hicn/transport/security/signer.h
@@ -76,15 +76,10 @@ class Signer {
PARCKeyStore *getKeyStore();
private:
- PARCBufferComposer *composer_ = nullptr;
- PARCBuffer *key_buffer_ = nullptr;
- PARCSymmetricKeyStore *symmetricKeyStore_ = nullptr;
+ CryptoSuite suite_;
PARCSigner *signer_ = nullptr;
- PARCSignature *signature_ = nullptr;
PARCKeyId *key_id_ = nullptr;
- CryptoSuite suite_;
size_t signature_length_;
- static uint8_t zeros[200];
};
} // namespace utils
diff --git a/libtransport/includes/hicn/transport/security/verifier.h b/libtransport/includes/hicn/transport/security/verifier.h
index 7ec6e7eda..838868427 100644
--- a/libtransport/includes/hicn/transport/security/verifier.h
+++ b/libtransport/includes/hicn/transport/security/verifier.h
@@ -84,20 +84,11 @@ class Verifier {
*/
int verify(const Packet &packet);
- CryptoHash getPacketHash(const Packet &packet,
- std::shared_ptr<CryptoHasher> hasher);
+ CryptoHash getPacketHash(const Packet &packet, CryptoHasher &hasher);
private:
PARCVerifier *verifier_ = nullptr;
- PARCCertificateFactory *factory_ = nullptr;
- PARCCertificate *certificate_ = nullptr;
- PARCKeyId *keyId_ = nullptr;
- PARCKey *key_ = nullptr;
- PARCBuffer *key_buffer_ = nullptr;
- PARCSymmetricKeyStore *symmetricKeyStore_ = nullptr;
PARCSigner *signer_ = nullptr;
- PARCBufferComposer *composer_ = nullptr;
- static uint8_t zeros[200];
};
} // namespace utils
diff --git a/libtransport/src/security/signer.cc b/libtransport/src/security/signer.cc
index 8a56cfa3d..aa2751611 100644
--- a/libtransport/src/security/signer.cc
+++ b/libtransport/src/security/signer.cc
@@ -36,9 +36,6 @@ TRANSPORT_CLANG_DISABLE_WARNING("-Wextern-c-compat")
namespace utils {
-uint8_t Signer::zeros[200] = {0};
-
-/*One signer_ per Private Key*/
Signer::Signer(PARCKeyStore *keyStore, CryptoSuite suite) {
parcSecurity_Init();
@@ -77,15 +74,20 @@ Signer::Signer(const std::string &passphrase, CryptoSuite suite) {
switch (suite) {
case CryptoSuite::HMAC_SHA256:
case CryptoSuite::HMAC_SHA512: {
- composer_ = parcBufferComposer_Create();
- parcBufferComposer_PutString(composer_, passphrase.c_str());
- key_buffer_ = parcBufferComposer_ProduceBuffer(composer_);
- symmetricKeyStore_ = parcSymmetricKeyStore_Create(key_buffer_);
+ PARCBufferComposer *composer = parcBufferComposer_Create();
+ parcBufferComposer_PutString(composer, passphrase.c_str());
+ PARCBuffer *key_buffer = parcBufferComposer_ProduceBuffer(composer);
+ PARCSymmetricKeyStore *symmetricKeyStore =
+ parcSymmetricKeyStore_Create(key_buffer);
this->signer_ = parcSigner_Create(
parcSymmetricKeySigner_Create(
- symmetricKeyStore_, parcCryptoSuite_GetCryptoHash(
- static_cast<PARCCryptoSuite>(suite))),
+ symmetricKeyStore, parcCryptoSuite_GetCryptoHash(
+ static_cast<PARCCryptoSuite>(suite))),
PARCSymmetricKeySignerAsSigner);
+
+ parcBuffer_Release(&key_buffer);
+ parcSymmetricKeyStore_Release(&symmetricKeyStore);
+ parcBufferComposer_Release(&composer);
break;
}
default: { return; }
@@ -97,9 +99,9 @@ Signer::Signer(const std::string &passphrase, CryptoSuite suite) {
}
Signer::Signer(const PARCSigner *signer, CryptoSuite suite)
- : signer_(parcSigner_Acquire(signer)),
+ : suite_(suite),
+ signer_(parcSigner_Acquire(signer)),
key_id_(parcSigner_CreateKeyId(this->signer_)),
- suite_(suite),
signature_length_(parcSigner_GetSignatureSize(this->signer_)) {
parcSecurity_Init();
}
@@ -108,17 +110,13 @@ Signer::Signer(const PARCSigner *signer)
: Signer(signer, CryptoSuite::UNKNOWN) {}
Signer::~Signer() {
- if (signature_) parcSignature_Release(&signature_);
- if (symmetricKeyStore_) parcSymmetricKeyStore_Release(&symmetricKeyStore_);
- if (key_buffer_) parcBuffer_Release(&key_buffer_);
- if (composer_) parcBufferComposer_Release(&composer_);
if (signer_) parcSigner_Release(&signer_);
if (key_id_) parcKeyId_Release(&key_id_);
parcSecurity_Fini();
}
void Signer::sign(Packet &packet) {
- // header chain points to the IP + TCP hicn header + AH Header
+ /* header chain points to the IP + TCP hicn header + AH Header */
MemBuf *header_chain = packet.header_head_;
MemBuf *payload_chain = packet.payload_head_;
uint8_t *hicn_packet = (uint8_t *)header_chain->writableData();
@@ -130,7 +128,7 @@ void Signer::sign(Packet &packet) {
packet.setSignatureSize(signature_length_);
- // Copy IP+TCP/ICMP header before zeroing them
+ /* Copy IP+TCP/ICMP header before zeroing them */
hicn_header_t header_copy;
hicn_packet_copy_header(format, (const hicn_header_t *)packet.packet_start_,
&header_copy, false);
@@ -151,7 +149,7 @@ void Signer::sign(Packet &packet) {
(PARCBuffer *)parcKeyId_GetKeyId(this->key_id_), 0);
packet.setKeyId(key_id);
- // Calculate hash
+ /* Calculate hash */
CryptoHasher hasher(parcSigner_GetCryptoHasher(signer_));
hasher.init();
hasher.updateBytes(hicn_packet, header_len + signature_length_);
@@ -162,10 +160,10 @@ void Signer::sign(Packet &packet) {
}
CryptoHash hash = hasher.finalize();
- signature_ = parcSigner_SignDigestNoAlloc(this->signer_, hash.hash_,
- packet.getSignature(),
- (uint32_t)signature_length_);
- PARCBuffer *buffer = parcSignature_GetSignature(signature_);
+ PARCSignature *signature = parcSigner_SignDigestNoAlloc(
+ this->signer_, hash.hash_, packet.getSignature(),
+ (uint32_t)signature_length_);
+ PARCBuffer *buffer = parcSignature_GetSignature(signature);
size_t bytes_len = parcBuffer_Remaining(buffer);
if (bytes_len > signature_length_) {
@@ -175,7 +173,7 @@ void Signer::sign(Packet &packet) {
hicn_packet_copy_header(format, &header_copy,
(hicn_header_t *)packet.packet_start_, false);
- parcSignature_Release(&signature_);
+ parcSignature_Release(&signature);
}
size_t Signer::getSignatureLength() { return signature_length_; }
diff --git a/libtransport/src/security/verifier.cc b/libtransport/src/security/verifier.cc
index 0cfbdc6f9..39b815d40 100644
--- a/libtransport/src/security/verifier.cc
+++ b/libtransport/src/security/verifier.cc
@@ -36,8 +36,6 @@ TRANSPORT_ALWAYS_INLINE bool file_exists(const std::string &name) {
return (stat(name.c_str(), &buffer) == 0);
}
-uint8_t Verifier::zeros[200] = {0};
-
Verifier::Verifier() {
parcSecurity_Init();
PARCInMemoryVerifier *in_memory_verifier = parcInMemoryVerifier_Create();
@@ -46,14 +44,7 @@ Verifier::Verifier() {
}
Verifier::~Verifier() {
- if (key_) parcKey_Release(&key_);
- if (keyId_) parcKeyId_Release(&keyId_);
if (signer_) parcSigner_Release(&signer_);
- if (symmetricKeyStore_) parcSymmetricKeyStore_Release(&symmetricKeyStore_);
- if (key_buffer_) parcBuffer_Release(&key_buffer_);
- if (composer_) parcBufferComposer_Release(&composer_);
- if (certificate_) parcCertificate_Release(&certificate_);
- if (factory_) parcCertificateFactory_Release(&factory_);
if (verifier_) parcVerifier_Release(&verifier_);
parcSecurity_Fini();
}
@@ -61,10 +52,10 @@ Verifier::~Verifier() {
/*
* TODO: Unsupported in libparc
*/
-bool Verifier::hasKey(PARCKeyId *keyId) { return false; }
+bool Verifier::hasKey(PARCKeyId *key_id) { return false; }
/*
- * TODO: signal errors without trap.
+ * TODO: Signal errors without trap.
*/
bool Verifier::addKey(PARCKey *key) {
parcVerifier_AddKey(this->verifier_, key);
@@ -73,28 +64,36 @@ bool Verifier::addKey(PARCKey *key) {
PARCKeyId *Verifier::addKeyFromPassphrase(const std::string &passphrase,
CryptoSuite suite) {
- composer_ = parcBufferComposer_Create();
- parcBufferComposer_PutString(composer_, passphrase.c_str());
- key_buffer_ = parcBufferComposer_ProduceBuffer(composer_);
+ PARCBufferComposer *composer = parcBufferComposer_Create();
+ parcBufferComposer_PutString(composer, passphrase.c_str());
+ PARCBuffer *key_buffer = parcBufferComposer_ProduceBuffer(composer);
- symmetricKeyStore_ = parcSymmetricKeyStore_Create(key_buffer_);
+ PARCSymmetricKeyStore *symmetricKeyStore =
+ parcSymmetricKeyStore_Create(key_buffer);
signer_ = parcSigner_Create(
parcSymmetricKeySigner_Create(
- symmetricKeyStore_,
+ symmetricKeyStore,
parcCryptoSuite_GetCryptoHash(static_cast<PARCCryptoSuite>(suite))),
PARCSymmetricKeySignerAsSigner);
- keyId_ = parcSigner_CreateKeyId(signer_);
- key_ = parcKey_CreateFromSymmetricKey(
- keyId_, parcSigner_GetSigningAlgorithm(signer_), key_buffer_);
- addKey(key_);
- return keyId_;
+ PARCKeyId *key_id = parcSigner_CreateKeyId(signer_);
+ PARCKey *key = parcKey_CreateFromSymmetricKey(
+ key_id, parcSigner_GetSigningAlgorithm(signer_), key_buffer);
+
+ addKey(key);
+
+ parcKey_Release(&key);
+ parcSymmetricKeyStore_Release(&symmetricKeyStore);
+ parcBuffer_Release(&key_buffer);
+ parcBufferComposer_Release(&composer);
+
+ return key_id;
}
PARCKeyId *Verifier::addKeyFromCertificate(const std::string &file_name) {
- factory_ = parcCertificateFactory_Create(PARCCertificateType_X509,
- PARCContainerEncoding_PEM);
- parcAssertNotNull(factory_, "Expected non-NULL factory");
+ PARCCertificateFactory *factory = parcCertificateFactory_Create(
+ PARCCertificateType_X509, PARCContainerEncoding_PEM);
+ parcAssertNotNull(factory, "Expected non-NULL factory");
if (!file_exists(file_name)) {
TRANSPORT_LOGW("Warning! The certificate %s file does not exist",
@@ -102,72 +101,86 @@ PARCKeyId *Verifier::addKeyFromCertificate(const std::string &file_name) {
return nullptr;
}
- certificate_ = parcCertificateFactory_CreateCertificateFromFile(
- factory_, (char *)file_name.c_str(), NULL);
+ PARCCertificate *certificate =
+ parcCertificateFactory_CreateCertificateFromFile(
+ factory, (char *)file_name.c_str(), NULL);
PARCBuffer *derEncodedVersion =
- parcCertificate_GetDEREncodedPublicKey(certificate_);
- PARCCryptoHash *keyDigest = parcCertificate_GetPublicKeyDigest(certificate_);
- keyId_ = parcKeyId_Create(parcCryptoHash_GetDigest(keyDigest));
- key_ = parcKey_CreateFromDerEncodedPublicKey(keyId_, PARCSigningAlgorithm_RSA,
- derEncodedVersion);
-
- addKey(key_);
- return keyId_;
+ parcCertificate_GetDEREncodedPublicKey(certificate);
+ PARCCryptoHash *keyDigest = parcCertificate_GetPublicKeyDigest(certificate);
+
+ PARCKeyId *key_id = parcKeyId_Create(parcCryptoHash_GetDigest(keyDigest));
+ PARCKey *key = parcKey_CreateFromDerEncodedPublicKey(
+ key_id, PARCSigningAlgorithm_RSA, derEncodedVersion);
+
+ addKey(key);
+
+ parcKey_Release(&key);
+ parcCertificate_Release(&certificate);
+ parcCertificateFactory_Release(&factory);
+
+ return key_id;
}
int Verifier::verify(const Packet &packet) {
- // Initialize packet.payload_head_
+ /* Initialize packet.payload_head_ */
const_cast<Packet *>(&packet)->separateHeaderPayload();
- Packet::Format format = packet.getFormat();
+
bool valid = false;
+ Packet::Format format = packet.getFormat();
- if (!(packet.format_ & HFO_AH)) {
+ if (!(format & HFO_AH)) {
throw errors::MalformedAHPacketException();
}
- // Copy IP+TCP/ICMP header before zeroing them
+ /* Copy IP+TCP/ICMP header before zeroing them */
hicn_header_t header_copy;
hicn_packet_copy_header(format, (const hicn_header_t *)packet.packet_start_,
&header_copy, false);
+ /* Get crypto suite */
PARCCryptoSuite suite =
static_cast<PARCCryptoSuite>(packet.getValidationAlgorithm());
PARCCryptoHashType hashtype = parcCryptoSuite_GetCryptoHash(suite);
+
+ /* Fetch the key that we will use to verify the signature */
KeyId _key_id = packet.getKeyId();
PARCBuffer *buffer =
parcBuffer_Wrap(_key_id.first, _key_id.second, 0, _key_id.second);
PARCKeyId *key_id = parcKeyId_Create(buffer);
parcBuffer_Release(&buffer);
+ /* Fetch signature */
int ah_payload_len = (int)packet.getSignatureSize();
uint8_t *_signature = packet.getSignature();
uint8_t *signature = new uint8_t[ah_payload_len];
- std::shared_ptr<CryptoHasher> hasher;
-
- // TODO Remove signature copy at this point, by not setting to zero
- // the validation payload.
+ /* TODO Remove signature copy at this point, by not setting to zero */
+ /* the validation payload. */
std::memcpy(signature, _signature, ah_payload_len);
+ /* Prepare local computation of the signature based on the crypto suite */
+ PARCCryptoHasher *hasher_ptr = nullptr;
switch (CryptoSuite(suite)) {
case CryptoSuite::DSA_SHA256:
case CryptoSuite::RSA_SHA256:
case CryptoSuite::RSA_SHA512:
case CryptoSuite::ECDSA_256K1: {
- hasher = std::make_shared<CryptoHasher>(
- parcVerifier_GetCryptoHasher(verifier_, key_id, hashtype));
+ hasher_ptr = parcVerifier_GetCryptoHasher(verifier_, key_id, hashtype);
break;
}
case CryptoSuite::HMAC_SHA256:
case CryptoSuite::HMAC_SHA512: {
if (!signer_) return false;
- hasher =
- std::make_shared<CryptoHasher>(parcSigner_GetCryptoHasher(signer_));
+ hasher_ptr = parcSigner_GetCryptoHasher(signer_);
break;
}
default: { return false; }
}
- CryptoHash hash_computed_locally = getPacketHash(packet, hasher);
+ /* Compute the packet signature locally */
+ CryptoHasher crypto_hasher(hasher_ptr);
+ CryptoHash hash_computed_locally = getPacketHash(packet, crypto_hasher);
+
+ /* Create a signature object from the raw packet signature */
PARCBuffer *bits =
parcBuffer_Wrap(signature, ah_payload_len, 0, ah_payload_len);
parcBuffer_Rewind(bits);
@@ -184,6 +197,7 @@ int Verifier::verify(const Packet &packet) {
}
if (!parcBuffer_HasRemaining(bits)) {
+ delete[] signature;
parcKeyId_Release(&key_id);
parcBuffer_Release(&bits);
return valid;
@@ -196,10 +210,11 @@ int Verifier::verify(const Packet &packet) {
parcBuffer_SetPosition(bits, 0);
}
+ /* Compare the packet signature to the locally computed one */
valid = parcVerifier_VerifyDigestSignature(
verifier_, key_id, hash_computed_locally.hash_, suite, signatureToVerify);
- /* Restore the resetted fields */
+ /* Restore the fields that were reset */
hicn_packet_copy_header(format, &header_copy,
(hicn_header_t *)packet.packet_start_, false);
@@ -212,7 +227,7 @@ int Verifier::verify(const Packet &packet) {
}
CryptoHash Verifier::getPacketHash(const Packet &packet,
- std::shared_ptr<CryptoHasher> hasher) {
+ CryptoHasher &crypto_hasher) {
MemBuf *header_chain = packet.header_head_;
MemBuf *payload_chain = packet.payload_head_;
Packet::Format format = packet.getFormat();
@@ -220,16 +235,16 @@ CryptoHash Verifier::getPacketHash(const Packet &packet,
uint8_t *hicn_packet = header_chain->writableData();
std::size_t header_len = Packet::getHeaderSizeFromFormat(format);
- // Reset fields that should not appear in the signature
+ /* Reset fields that should not appear in the signature */
const_cast<Packet &>(packet).resetForHash();
- hasher->init().updateBytes(hicn_packet, header_len + ah_payload_len);
+ crypto_hasher.init().updateBytes(hicn_packet, header_len + ah_payload_len);
for (MemBuf *current = payload_chain; current != header_chain;
current = current->next()) {
- hasher->updateBytes(current->data(), current->length());
+ crypto_hasher.updateBytes(current->data(), current->length());
}
- return hasher->finalize();
+ return crypto_hasher.finalize();
}
} // namespace utils
diff --git a/telemetry/vpp-collectd/vpp/vpp.c b/telemetry/vpp-collectd/vpp/vpp.c
index 0fec85dc8..679f8feb4 100644
--- a/telemetry/vpp-collectd/vpp/vpp.c
+++ b/telemetry/vpp-collectd/vpp/vpp.c
@@ -322,8 +322,6 @@ static int vpp_read(void) {
(value_t){.derive = res[i].simple_counter_vec[k][j]}};
if (get_data_set(res[i].name, &data_set)) {
- plugin_log(LOG_INFO, "vpp plugin: ignored stat name %s",
- res[i].name);
continue;
}
@@ -344,8 +342,6 @@ static int vpp_read(void) {
};
if (get_data_set(res[i].name, &data_set)) {
- plugin_log(LOG_INFO, "vpp plugin: ignored stat name %s",
- res[i].name);
continue;
}