mirror of
https://github.com/RGBCube/serenity
synced 2025-05-31 10:48:11 +00:00
LibCrypto+LibTLS: Generalise the use of IV length
This is in preparation for the upcoming Galois/Counter mode, which conventionally has 12 bytes of IV as opposed to CBC's 16 bytes. ...Also fixes a lot of style issues, since the author finally found the project's clang config file in the repository root :^)
This commit is contained in:
parent
7384d58a0a
commit
a1e1570552
7 changed files with 3110 additions and 3060 deletions
|
@ -60,137 +60,121 @@ namespace TLS {
|
|||
// "for now" q&d implementation of ASN1
|
||||
namespace {
|
||||
|
||||
static bool _asn1_is_field_present(const u32* fields, const u32* prefix)
|
||||
{
|
||||
size_t i = 0;
|
||||
while (prefix[i]) {
|
||||
if (fields[i] != prefix[i])
|
||||
return false;
|
||||
++i;
|
||||
}
|
||||
return true;
|
||||
static bool _asn1_is_field_present(const u32* fields, const u32* prefix)
|
||||
{
|
||||
size_t i = 0;
|
||||
while (prefix[i]) {
|
||||
if (fields[i] != prefix[i])
|
||||
return false;
|
||||
++i;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool _asn1_is_oid(const u8* oid, const u8* compare, size_t length = 3)
|
||||
{
|
||||
size_t i = 0;
|
||||
while (oid[i] && i < length) {
|
||||
if (oid[i] != compare[i])
|
||||
return false;
|
||||
++i;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
static void _set_algorithm(u32&, const u8* value, size_t length)
|
||||
{
|
||||
if (length != 9) {
|
||||
dbg() << "unsupported algorithm " << value;
|
||||
}
|
||||
|
||||
static bool _asn1_is_oid(const u8* oid, const u8* compare, size_t length = 3)
|
||||
{
|
||||
size_t i = 0;
|
||||
while (oid[i] && i < length) {
|
||||
if (oid[i] != compare[i])
|
||||
return false;
|
||||
++i;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
dbg() << "FIXME: Set algorithm";
|
||||
}
|
||||
|
||||
static void _set_algorithm(u32&, const u8* value, size_t length)
|
||||
{
|
||||
if (length != 9) {
|
||||
dbg() << "unsupported algorithm " << value;
|
||||
}
|
||||
static size_t _get_asn1_length(const u8* buffer, size_t length, size_t& octets)
|
||||
{
|
||||
octets = 0;
|
||||
if (length < 1)
|
||||
return 0;
|
||||
|
||||
dbg() << "FIXME: Set algorithm";
|
||||
}
|
||||
|
||||
static size_t _get_asn1_length(const u8* buffer, size_t length, size_t& octets)
|
||||
{
|
||||
octets = 0;
|
||||
if (length < 1)
|
||||
u8 size = buffer[0];
|
||||
if (size & 0x80) {
|
||||
octets = size & 0x7f;
|
||||
if (octets > length - 1) {
|
||||
return 0;
|
||||
|
||||
u8 size = buffer[0];
|
||||
if (size & 0x80) {
|
||||
octets = size & 0x7f;
|
||||
if (octets > length - 1) {
|
||||
return 0;
|
||||
}
|
||||
auto reference_octets = octets;
|
||||
if (octets > 4)
|
||||
reference_octets = 4;
|
||||
size_t long_size = 0, coeff = 1;
|
||||
for (auto i = reference_octets; i > 0; --i) {
|
||||
long_size += buffer[i] * coeff;
|
||||
coeff *= 0x100;
|
||||
}
|
||||
++octets;
|
||||
return long_size;
|
||||
}
|
||||
auto reference_octets = octets;
|
||||
if (octets > 4)
|
||||
reference_octets = 4;
|
||||
size_t long_size = 0, coeff = 1;
|
||||
for (auto i = reference_octets; i > 0; --i) {
|
||||
long_size += buffer[i] * coeff;
|
||||
coeff *= 0x100;
|
||||
}
|
||||
++octets;
|
||||
return size;
|
||||
return long_size;
|
||||
}
|
||||
++octets;
|
||||
return size;
|
||||
}
|
||||
|
||||
static ssize_t _parse_asn1(Context& context, Certificate& cert, const u8* buffer, size_t size, int level, u32* fields, u8* has_key, int client_cert, u8* root_oid, OIDChain* chain)
|
||||
{
|
||||
OIDChain local_chain;
|
||||
local_chain.root = chain;
|
||||
size_t position = 0;
|
||||
static ssize_t _parse_asn1(Context& context, Certificate& cert, const u8* buffer, size_t size, int level, u32* fields, u8* has_key, int client_cert, u8* root_oid, OIDChain* chain)
|
||||
{
|
||||
OIDChain local_chain;
|
||||
local_chain.root = chain;
|
||||
size_t position = 0;
|
||||
|
||||
// parse DER...again
|
||||
size_t index = 0;
|
||||
u8 oid[16] { 0 };
|
||||
// parse DER...again
|
||||
size_t index = 0;
|
||||
u8 oid[16] { 0 };
|
||||
|
||||
local_chain.oid = oid;
|
||||
if (has_key)
|
||||
*has_key = 0;
|
||||
local_chain.oid = oid;
|
||||
if (has_key)
|
||||
*has_key = 0;
|
||||
|
||||
u8 local_has_key = 0;
|
||||
const u8* cert_data = nullptr;
|
||||
size_t cert_length = 0;
|
||||
while (position < size) {
|
||||
size_t start_position = position;
|
||||
if (size - position < 2) {
|
||||
dbg() << "not enough data for certificate size";
|
||||
return (i8)Error::NeedMoreData;
|
||||
}
|
||||
u8 first = buffer[position++];
|
||||
u8 type = first & 0x1f;
|
||||
u8 constructed = first & 0x20;
|
||||
size_t octets = 0;
|
||||
u32 temp;
|
||||
index++;
|
||||
u8 local_has_key = 0;
|
||||
const u8* cert_data = nullptr;
|
||||
size_t cert_length = 0;
|
||||
while (position < size) {
|
||||
size_t start_position = position;
|
||||
if (size - position < 2) {
|
||||
dbg() << "not enough data for certificate size";
|
||||
return (i8)Error::NeedMoreData;
|
||||
}
|
||||
u8 first = buffer[position++];
|
||||
u8 type = first & 0x1f;
|
||||
u8 constructed = first & 0x20;
|
||||
size_t octets = 0;
|
||||
u32 temp;
|
||||
index++;
|
||||
|
||||
if (level <= 0xff)
|
||||
fields[level - 1] = index;
|
||||
if (level <= 0xff)
|
||||
fields[level - 1] = index;
|
||||
|
||||
size_t length = _get_asn1_length((const u8*)&buffer[position], size - position, octets);
|
||||
size_t length = _get_asn1_length((const u8*)&buffer[position], size - position, octets);
|
||||
|
||||
if (octets > 4 || octets > size - position) {
|
||||
dbg() << "could not read the certificate";
|
||||
return position;
|
||||
}
|
||||
if (octets > 4 || octets > size - position) {
|
||||
dbg() << "could not read the certificate";
|
||||
return position;
|
||||
}
|
||||
|
||||
position += octets;
|
||||
if (size - position < length) {
|
||||
dbg() << "not enough data for sequence";
|
||||
return (i8)Error::NeedMoreData;
|
||||
}
|
||||
position += octets;
|
||||
if (size - position < length) {
|
||||
dbg() << "not enough data for sequence";
|
||||
return (i8)Error::NeedMoreData;
|
||||
}
|
||||
|
||||
if (length && constructed) {
|
||||
switch (type) {
|
||||
case 0x03:
|
||||
break;
|
||||
case 0x10:
|
||||
if (level == 2 && index == 1) {
|
||||
cert_length = length + position - start_position;
|
||||
cert_data = buffer + start_position;
|
||||
}
|
||||
// public key data
|
||||
if (!cert.version && _asn1_is_field_present(fields, Constants::priv_der_id)) {
|
||||
temp = length + position - start_position;
|
||||
if (cert.der.size() < temp) {
|
||||
cert.der.grow(temp);
|
||||
} else {
|
||||
cert.der.trim(temp);
|
||||
}
|
||||
cert.der.overwrite(0, buffer + start_position, temp);
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
if (length && constructed) {
|
||||
switch (type) {
|
||||
case 0x03:
|
||||
break;
|
||||
case 0x10:
|
||||
if (level == 2 && index == 1) {
|
||||
cert_length = length + position - start_position;
|
||||
cert_data = buffer + start_position;
|
||||
}
|
||||
local_has_key = false;
|
||||
_parse_asn1(context, cert, buffer + position, length, level + 1, fields, &local_has_key, client_cert, root_oid, &local_chain);
|
||||
if ((local_has_key && (!context.is_server || client_cert)) || (client_cert || _asn1_is_field_present(fields, Constants::pk_id))) {
|
||||
// public key data
|
||||
if (!cert.version && _asn1_is_field_present(fields, Constants::priv_der_id)) {
|
||||
temp = length + position - start_position;
|
||||
if (cert.der.size() < temp) {
|
||||
cert.der.grow(temp);
|
||||
|
@ -199,134 +183,150 @@ namespace {
|
|||
}
|
||||
cert.der.overwrite(0, buffer + start_position, temp);
|
||||
}
|
||||
} else {
|
||||
switch (type) {
|
||||
case 0x00:
|
||||
return position;
|
||||
break;
|
||||
case 0x01:
|
||||
temp = buffer[position];
|
||||
break;
|
||||
case 0x02:
|
||||
if (_asn1_is_field_present(fields, Constants::pk_id)) {
|
||||
if (has_key)
|
||||
*has_key = true;
|
||||
break;
|
||||
|
||||
if (index == 1)
|
||||
cert.public_key.set(
|
||||
Crypto::UnsignedBigInteger::import_data(buffer + position, length),
|
||||
cert.public_key.public_exponent());
|
||||
else if (index == 2)
|
||||
cert.public_key.set(
|
||||
cert.public_key.modulus(),
|
||||
Crypto::UnsignedBigInteger::import_data(buffer + position, length));
|
||||
} else if (_asn1_is_field_present(fields, Constants::serial_id)) {
|
||||
cert.serial_number = Crypto::UnsignedBigInteger::import_data(buffer + position, length);
|
||||
}
|
||||
if (_asn1_is_field_present(fields, Constants::version_id)) {
|
||||
if (length == 1)
|
||||
cert.version = buffer[position];
|
||||
}
|
||||
// print_buffer(ByteBuffer::wrap(buffer + position, length));
|
||||
break;
|
||||
case 0x03:
|
||||
if (_asn1_is_field_present(fields, Constants::pk_id)) {
|
||||
if (has_key)
|
||||
*has_key = true;
|
||||
}
|
||||
if (_asn1_is_field_present(fields, Constants::sign_id)) {
|
||||
auto* value = buffer + position;
|
||||
auto len = length;
|
||||
if (!value[0] && len % 2) {
|
||||
++value;
|
||||
--len;
|
||||
}
|
||||
cert.sign_key = ByteBuffer::copy(value, len);
|
||||
} else {
|
||||
if (buffer[position] == 0 && length > 256) {
|
||||
_parse_asn1(context, cert, buffer + position + 1, length - 1, level + 1, fields, &local_has_key, client_cert, root_oid, &local_chain);
|
||||
} else {
|
||||
_parse_asn1(context, cert, buffer + position, length, level + 1, fields, &local_has_key, client_cert, root_oid, &local_chain);
|
||||
}
|
||||
}
|
||||
break;
|
||||
case 0x04:
|
||||
_parse_asn1(context, cert, buffer + position, length, level + 1, fields, &local_has_key, client_cert, root_oid, &local_chain);
|
||||
break;
|
||||
case 0x05:
|
||||
break;
|
||||
case 0x06:
|
||||
if (_asn1_is_field_present(fields, Constants::pk_id)) {
|
||||
_set_algorithm(cert.key_algorithm, buffer + position, length);
|
||||
}
|
||||
if (_asn1_is_field_present(fields, Constants::algorithm_id)) {
|
||||
_set_algorithm(cert.algorithm, buffer + position, length);
|
||||
}
|
||||
|
||||
if (length < 16)
|
||||
memcpy(oid, buffer + position, length);
|
||||
else
|
||||
memcpy(oid, buffer + position, 16);
|
||||
if (root_oid)
|
||||
memcpy(root_oid, oid, 16);
|
||||
break;
|
||||
case 0x09:
|
||||
break;
|
||||
case 0x17:
|
||||
case 0x018:
|
||||
// time
|
||||
// ignore
|
||||
break;
|
||||
case 0x013:
|
||||
case 0x0c:
|
||||
case 0x14:
|
||||
case 0x15:
|
||||
case 0x16:
|
||||
case 0x19:
|
||||
case 0x1a:
|
||||
case 0x1b:
|
||||
case 0x1c:
|
||||
case 0x1d:
|
||||
case 0x1e:
|
||||
// printable string and such
|
||||
if (_asn1_is_field_present(fields, Constants::issurer_id)) {
|
||||
if (_asn1_is_oid(oid, Constants::country_oid)) {
|
||||
cert.issuer_country = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::state_oid)) {
|
||||
cert.issuer_state = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::location_oid)) {
|
||||
cert.issuer_location = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::entity_oid)) {
|
||||
cert.issuer_entity = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::subject_oid)) {
|
||||
cert.issuer_subject = String { (const char*)buffer + position, length };
|
||||
}
|
||||
} else if (_asn1_is_field_present(fields, Constants::owner_id)) {
|
||||
if (_asn1_is_oid(oid, Constants::country_oid)) {
|
||||
cert.country = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::state_oid)) {
|
||||
cert.state = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::location_oid)) {
|
||||
cert.location = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::entity_oid)) {
|
||||
cert.entity = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::subject_oid)) {
|
||||
cert.subject = String { (const char*)buffer + position, length };
|
||||
}
|
||||
}
|
||||
break;
|
||||
default:
|
||||
// dbg() << "unused field " << type;
|
||||
break;
|
||||
}
|
||||
default:
|
||||
break;
|
||||
}
|
||||
local_has_key = false;
|
||||
_parse_asn1(context, cert, buffer + position, length, level + 1, fields, &local_has_key, client_cert, root_oid, &local_chain);
|
||||
if ((local_has_key && (!context.is_server || client_cert)) || (client_cert || _asn1_is_field_present(fields, Constants::pk_id))) {
|
||||
temp = length + position - start_position;
|
||||
if (cert.der.size() < temp) {
|
||||
cert.der.grow(temp);
|
||||
} else {
|
||||
cert.der.trim(temp);
|
||||
}
|
||||
cert.der.overwrite(0, buffer + start_position, temp);
|
||||
}
|
||||
} else {
|
||||
switch (type) {
|
||||
case 0x00:
|
||||
return position;
|
||||
break;
|
||||
case 0x01:
|
||||
temp = buffer[position];
|
||||
break;
|
||||
case 0x02:
|
||||
if (_asn1_is_field_present(fields, Constants::pk_id)) {
|
||||
if (has_key)
|
||||
*has_key = true;
|
||||
|
||||
if (index == 1)
|
||||
cert.public_key.set(
|
||||
Crypto::UnsignedBigInteger::import_data(buffer + position, length),
|
||||
cert.public_key.public_exponent());
|
||||
else if (index == 2)
|
||||
cert.public_key.set(
|
||||
cert.public_key.modulus(),
|
||||
Crypto::UnsignedBigInteger::import_data(buffer + position, length));
|
||||
} else if (_asn1_is_field_present(fields, Constants::serial_id)) {
|
||||
cert.serial_number = Crypto::UnsignedBigInteger::import_data(buffer + position, length);
|
||||
}
|
||||
if (_asn1_is_field_present(fields, Constants::version_id)) {
|
||||
if (length == 1)
|
||||
cert.version = buffer[position];
|
||||
}
|
||||
// print_buffer(ByteBuffer::wrap(buffer + position, length));
|
||||
break;
|
||||
case 0x03:
|
||||
if (_asn1_is_field_present(fields, Constants::pk_id)) {
|
||||
if (has_key)
|
||||
*has_key = true;
|
||||
}
|
||||
if (_asn1_is_field_present(fields, Constants::sign_id)) {
|
||||
auto* value = buffer + position;
|
||||
auto len = length;
|
||||
if (!value[0] && len % 2) {
|
||||
++value;
|
||||
--len;
|
||||
}
|
||||
cert.sign_key = ByteBuffer::copy(value, len);
|
||||
} else {
|
||||
if (buffer[position] == 0 && length > 256) {
|
||||
_parse_asn1(context, cert, buffer + position + 1, length - 1, level + 1, fields, &local_has_key, client_cert, root_oid, &local_chain);
|
||||
} else {
|
||||
_parse_asn1(context, cert, buffer + position, length, level + 1, fields, &local_has_key, client_cert, root_oid, &local_chain);
|
||||
}
|
||||
}
|
||||
break;
|
||||
case 0x04:
|
||||
_parse_asn1(context, cert, buffer + position, length, level + 1, fields, &local_has_key, client_cert, root_oid, &local_chain);
|
||||
break;
|
||||
case 0x05:
|
||||
break;
|
||||
case 0x06:
|
||||
if (_asn1_is_field_present(fields, Constants::pk_id)) {
|
||||
_set_algorithm(cert.key_algorithm, buffer + position, length);
|
||||
}
|
||||
if (_asn1_is_field_present(fields, Constants::algorithm_id)) {
|
||||
_set_algorithm(cert.algorithm, buffer + position, length);
|
||||
}
|
||||
|
||||
if (length < 16)
|
||||
memcpy(oid, buffer + position, length);
|
||||
else
|
||||
memcpy(oid, buffer + position, 16);
|
||||
if (root_oid)
|
||||
memcpy(root_oid, oid, 16);
|
||||
break;
|
||||
case 0x09:
|
||||
break;
|
||||
case 0x17:
|
||||
case 0x018:
|
||||
// time
|
||||
// ignore
|
||||
break;
|
||||
case 0x013:
|
||||
case 0x0c:
|
||||
case 0x14:
|
||||
case 0x15:
|
||||
case 0x16:
|
||||
case 0x19:
|
||||
case 0x1a:
|
||||
case 0x1b:
|
||||
case 0x1c:
|
||||
case 0x1d:
|
||||
case 0x1e:
|
||||
// printable string and such
|
||||
if (_asn1_is_field_present(fields, Constants::issurer_id)) {
|
||||
if (_asn1_is_oid(oid, Constants::country_oid)) {
|
||||
cert.issuer_country = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::state_oid)) {
|
||||
cert.issuer_state = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::location_oid)) {
|
||||
cert.issuer_location = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::entity_oid)) {
|
||||
cert.issuer_entity = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::subject_oid)) {
|
||||
cert.issuer_subject = String { (const char*)buffer + position, length };
|
||||
}
|
||||
} else if (_asn1_is_field_present(fields, Constants::owner_id)) {
|
||||
if (_asn1_is_oid(oid, Constants::country_oid)) {
|
||||
cert.country = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::state_oid)) {
|
||||
cert.state = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::location_oid)) {
|
||||
cert.location = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::entity_oid)) {
|
||||
cert.entity = String { (const char*)buffer + position, length };
|
||||
} else if (_asn1_is_oid(oid, Constants::subject_oid)) {
|
||||
cert.subject = String { (const char*)buffer + position, length };
|
||||
}
|
||||
}
|
||||
break;
|
||||
default:
|
||||
// dbg() << "unused field " << type;
|
||||
break;
|
||||
}
|
||||
position += length;
|
||||
}
|
||||
if (level == 2 && cert.sign_key.size() && cert_length && cert_data) {
|
||||
dbg() << "FIXME: Cert.fingerprint";
|
||||
}
|
||||
return position;
|
||||
position += length;
|
||||
}
|
||||
if (level == 2 && cert.sign_key.size() && cert_length && cert_data) {
|
||||
dbg() << "FIXME: Cert.fingerprint";
|
||||
}
|
||||
return position;
|
||||
}
|
||||
}
|
||||
|
||||
Optional<Certificate> TLSv12::parse_asn1(const ByteBuffer& buffer, bool)
|
||||
|
@ -520,7 +520,7 @@ bool TLSv12::expand_key()
|
|||
|
||||
auto key_size = key_length();
|
||||
auto mac_size = mac_length();
|
||||
auto iv_size = 16;
|
||||
auto iv_size = iv_length();
|
||||
|
||||
pseudorandom_function(
|
||||
key_buffer,
|
||||
|
@ -769,9 +769,10 @@ void TLSv12::update_packet(ByteBuffer& packet)
|
|||
auto buffer = ByteBuffer::create_zeroed(length);
|
||||
size_t buffer_position = 0;
|
||||
u16 aligned_length = length + block_size - length % block_size;
|
||||
auto iv_size = iv_length();
|
||||
|
||||
// we need enough space for a header, 16 bytes of IV and whatever the packet contains
|
||||
auto ct = ByteBuffer::create_zeroed(aligned_length + header_size + 16);
|
||||
// we need enough space for a header, iv_length bytes of IV and whatever the packet contains
|
||||
auto ct = ByteBuffer::create_zeroed(aligned_length + header_size + iv_size);
|
||||
|
||||
// copy the header over
|
||||
ct.overwrite(0, packet.data(), header_size - 2);
|
||||
|
@ -798,18 +799,15 @@ void TLSv12::update_packet(ByteBuffer& packet)
|
|||
// throws a wrench into our plans
|
||||
buffer.trim(buffer_position);
|
||||
|
||||
// make a random seed IV for this message
|
||||
u8 record_iv[16] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
|
||||
// arc4random_buf(record_iv, 16);
|
||||
|
||||
auto iv = ByteBuffer::wrap(record_iv, 16);
|
||||
// FIXME: REALLY Should be filled with random bytes
|
||||
auto iv = ByteBuffer::create_zeroed(iv_size);
|
||||
|
||||
// write it into the ciphertext portion of the message
|
||||
ct.overwrite(header_size, record_iv, 16);
|
||||
ct.overwrite(header_size, iv.data(), iv.size());
|
||||
ct.trim(length + block_size - length % block_size + header_size + block_size - padding);
|
||||
|
||||
// get a block to encrypt into
|
||||
auto view = ct.slice_view(header_size + 16, length + block_size - length % block_size + block_size - padding - 16);
|
||||
auto view = ct.slice_view(header_size + iv_size, length + block_size - length % block_size + block_size - padding - iv_size);
|
||||
|
||||
// encrypt the message
|
||||
m_aes_local->encrypt(buffer, view, iv);
|
||||
|
@ -1346,11 +1344,12 @@ ssize_t TLSv12::handle_message(const ByteBuffer& buffer)
|
|||
#endif
|
||||
|
||||
ASSERT(m_aes_remote);
|
||||
auto iv_size = iv_length();
|
||||
|
||||
auto decrypted = m_aes_remote->create_aligned_buffer(length - 16);
|
||||
auto iv = buffer.slice_view(header_size, 16);
|
||||
auto decrypted = m_aes_remote->create_aligned_buffer(length - iv_size);
|
||||
auto iv = buffer.slice_view(header_size, iv_size);
|
||||
|
||||
m_aes_remote->decrypt(buffer.slice_view(header_size + 16, length - 16), decrypted, iv);
|
||||
m_aes_remote->decrypt(buffer.slice_view(header_size + iv_size, length - iv_size), decrypted, iv);
|
||||
|
||||
length = decrypted.size();
|
||||
|
||||
|
|
|
@ -92,8 +92,11 @@ enum class CipherSuite {
|
|||
|
||||
RSA_WITH_AES_128_CBC_SHA = 0x002F,
|
||||
RSA_WITH_AES_256_CBC_SHA = 0x0035,
|
||||
RSA_WITH_AES_128_CBC_SHA256 = 0x003C, // we support this
|
||||
RSA_WITH_AES_256_CBC_SHA256 = 0x003D, //<- this is our guy
|
||||
|
||||
// We support these
|
||||
RSA_WITH_AES_128_CBC_SHA256 = 0x003C,
|
||||
RSA_WITH_AES_256_CBC_SHA256 = 0x003D,
|
||||
// TODO
|
||||
RSA_WITH_AES_128_GCM_SHA256 = 0x009C,
|
||||
RSA_WITH_AES_256_GCM_SHA384 = 0x009D,
|
||||
};
|
||||
|
@ -360,8 +363,48 @@ private:
|
|||
|
||||
void pseudorandom_function(ByteBuffer& output, const ByteBuffer& secret, const u8* label, size_t label_length, const ByteBuffer& seed, const ByteBuffer& seed_b);
|
||||
|
||||
size_t key_length() const { return m_aes_local ? m_aes_local->cipher().key().length() : 16; } // FIXME: generalize
|
||||
size_t mac_length() const { return Crypto::Authentication::HMAC<Crypto::Hash::SHA256>::DigestSize; } // FIXME: generalize
|
||||
size_t key_length() const
|
||||
{
|
||||
switch (m_context.cipher) {
|
||||
case CipherSuite::AES_128_CCM_8_SHA256:
|
||||
case CipherSuite::AES_128_CCM_SHA256:
|
||||
case CipherSuite::AES_128_GCM_SHA256:
|
||||
case CipherSuite::Invalid:
|
||||
case CipherSuite::RSA_WITH_AES_128_CBC_SHA256:
|
||||
case CipherSuite::RSA_WITH_AES_128_CBC_SHA:
|
||||
case CipherSuite::RSA_WITH_AES_128_GCM_SHA256:
|
||||
default:
|
||||
return 128 / 8;
|
||||
case CipherSuite::AES_256_GCM_SHA384:
|
||||
case CipherSuite::RSA_WITH_AES_256_CBC_SHA:
|
||||
case CipherSuite::RSA_WITH_AES_256_CBC_SHA256:
|
||||
case CipherSuite::RSA_WITH_AES_256_GCM_SHA384:
|
||||
return 256 / 8;
|
||||
}
|
||||
}
|
||||
size_t mac_length() const
|
||||
{
|
||||
return Crypto::Authentication::HMAC<Crypto::Hash::SHA256>::DigestSize;
|
||||
} // FIXME: generalize
|
||||
size_t iv_length() const
|
||||
{
|
||||
switch (m_context.cipher) {
|
||||
case CipherSuite::AES_128_CCM_8_SHA256:
|
||||
case CipherSuite::AES_128_CCM_SHA256:
|
||||
case CipherSuite::Invalid:
|
||||
case CipherSuite::RSA_WITH_AES_128_CBC_SHA256:
|
||||
case CipherSuite::RSA_WITH_AES_128_CBC_SHA:
|
||||
case CipherSuite::RSA_WITH_AES_256_CBC_SHA256:
|
||||
case CipherSuite::RSA_WITH_AES_256_CBC_SHA:
|
||||
default:
|
||||
return 16;
|
||||
case CipherSuite::AES_128_GCM_SHA256:
|
||||
case CipherSuite::AES_256_GCM_SHA384:
|
||||
case CipherSuite::RSA_WITH_AES_128_GCM_SHA256:
|
||||
case CipherSuite::RSA_WITH_AES_256_GCM_SHA384:
|
||||
return 12;
|
||||
}
|
||||
}
|
||||
|
||||
bool expand_key();
|
||||
|
||||
|
@ -375,27 +418,27 @@ private:
|
|||
};
|
||||
|
||||
namespace Constants {
|
||||
constexpr static const u32 version_id[] { 1, 1, 1, 0 };
|
||||
constexpr static const u32 pk_id[] { 1, 1, 7, 0 };
|
||||
constexpr static const u32 serial_id[] { 1, 1, 2, 1, 0 };
|
||||
constexpr static const u32 issurer_id[] { 1, 1, 4, 0 };
|
||||
constexpr static const u32 owner_id[] { 1, 1, 6, 0 };
|
||||
constexpr static const u32 validity_id[] { 1, 1, 5, 0 };
|
||||
constexpr static const u32 algorithm_id[] { 1, 1, 3, 0 };
|
||||
constexpr static const u32 sign_id[] { 1, 3, 2, 1, 0 };
|
||||
constexpr static const u32 priv_id[] { 1, 4, 0 };
|
||||
constexpr static const u32 priv_der_id[] { 1, 3, 1, 0 };
|
||||
constexpr static const u32 ecc_priv_id[] { 1, 2, 0 };
|
||||
constexpr static const u32 version_id[] { 1, 1, 1, 0 };
|
||||
constexpr static const u32 pk_id[] { 1, 1, 7, 0 };
|
||||
constexpr static const u32 serial_id[] { 1, 1, 2, 1, 0 };
|
||||
constexpr static const u32 issurer_id[] { 1, 1, 4, 0 };
|
||||
constexpr static const u32 owner_id[] { 1, 1, 6, 0 };
|
||||
constexpr static const u32 validity_id[] { 1, 1, 5, 0 };
|
||||
constexpr static const u32 algorithm_id[] { 1, 1, 3, 0 };
|
||||
constexpr static const u32 sign_id[] { 1, 3, 2, 1, 0 };
|
||||
constexpr static const u32 priv_id[] { 1, 4, 0 };
|
||||
constexpr static const u32 priv_der_id[] { 1, 3, 1, 0 };
|
||||
constexpr static const u32 ecc_priv_id[] { 1, 2, 0 };
|
||||
|
||||
constexpr static const u8 country_oid[] { 0x55, 0x04, 0x06, 0x00 };
|
||||
constexpr static const u8 state_oid[] { 0x55, 0x04, 0x08, 0x00 };
|
||||
constexpr static const u8 location_oid[] { 0x55, 0x04, 0x07, 0x00 };
|
||||
constexpr static const u8 entity_oid[] { 0x55, 0x04, 0x0A, 0x00 };
|
||||
constexpr static const u8 subject_oid[] { 0x55, 0x04, 0x03, 0x00 };
|
||||
constexpr static const u8 san_oid[] { 0x55, 0x1D, 0x11, 0x00 };
|
||||
constexpr static const u8 ocsp_oid[] { 0x2B, 0x06, 0x01, 0x05, 0x05, 0x07, 0x30, 0x01, 0x00 };
|
||||
constexpr static const u8 country_oid[] { 0x55, 0x04, 0x06, 0x00 };
|
||||
constexpr static const u8 state_oid[] { 0x55, 0x04, 0x08, 0x00 };
|
||||
constexpr static const u8 location_oid[] { 0x55, 0x04, 0x07, 0x00 };
|
||||
constexpr static const u8 entity_oid[] { 0x55, 0x04, 0x0A, 0x00 };
|
||||
constexpr static const u8 subject_oid[] { 0x55, 0x04, 0x03, 0x00 };
|
||||
constexpr static const u8 san_oid[] { 0x55, 0x1D, 0x11, 0x00 };
|
||||
constexpr static const u8 ocsp_oid[] { 0x2B, 0x06, 0x01, 0x05, 0x05, 0x07, 0x30, 0x01, 0x00 };
|
||||
|
||||
constexpr static const u8 TLS_RSA_SIGN_SHA256_OID[] { 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b, 0x00 };
|
||||
constexpr static const u8 TLS_RSA_SIGN_SHA256_OID[] { 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b, 0x00 };
|
||||
|
||||
}
|
||||
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue