Add sharing of groups between databases

* Add source folder keeshare for sharing with corresponding define WITH_XC_KEESHARE
* Move common crypto parts to src/crypto/ssh
* Extended OpenSSHKey
* Move filewatching to own file (currently in two related classes DelayedFileWatcher and BulkFileWatcher)
* Small improvements for style and code in several classes
* Sharing is secured using RSA-Keys which are generated on demand
* Publisher signs the container using their private key
* Client can verify the signed container and choose to decline an import,
import only once or trust the publisher and automatically import all
data of this source henceforth
* Integration of settings into Group-Settings, Database-Settings and Application-Settings
* Introduced dependency QuaZip as dependency to allow combined export of
key container and the (custom format) certificate
This commit is contained in:
Christian Kieschnick 2018-10-01 10:26:24 -04:00 committed by Jonathan White
parent c1e9f45df9
commit eca9c658f4
No known key found for this signature in database
GPG key ID: 440FC65F2E0C6E01
106 changed files with 5828 additions and 503 deletions

View file

@ -1,187 +0,0 @@
/*
* Copyright (C) 2018 Toni Spets <toni.spets@iki.fi>
* Copyright (C) 2018 KeePassXC Team <team@keepassxc.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 or (at your option)
* version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ASN1Key.h"
#include <gcrypt.h>
namespace
{
constexpr quint8 TAG_INT = 0x02;
constexpr quint8 TAG_SEQUENCE = 0x30;
constexpr quint8 KEY_ZERO = 0x0;
bool nextTag(BinaryStream& stream, quint8& tag, quint32& len)
{
stream.read(tag);
quint8 lenByte;
stream.read(lenByte);
if (lenByte & 0x80) {
quint32 bytes = lenByte & ~0x80;
if (bytes == 1) {
stream.read(lenByte);
len = lenByte;
} else if (bytes == 2) {
quint16 lenShort;
stream.read(lenShort);
len = lenShort;
} else if (bytes == 4) {
stream.read(len);
} else {
return false;
}
} else {
len = lenByte;
}
return true;
}
bool parseHeader(BinaryStream& stream, quint8 wantedType)
{
quint8 tag;
quint32 len;
nextTag(stream, tag, len);
if (tag != TAG_SEQUENCE) {
return false;
}
nextTag(stream, tag, len);
if (tag != TAG_INT || len != 1) {
return false;
}
quint8 keyType;
stream.read(keyType);
return (keyType == wantedType);
}
bool readInt(BinaryStream& stream, QByteArray& target)
{
quint8 tag;
quint32 len;
nextTag(stream, tag, len);
if (tag != TAG_INT) {
return false;
}
target.resize(len);
stream.read(target);
return true;
}
QByteArray calculateIqmp(QByteArray& bap, QByteArray& baq)
{
gcry_mpi_t u, p, q;
QByteArray iqmp_hex;
u = gcry_mpi_snew(bap.length() * 8);
gcry_mpi_scan(&p, GCRYMPI_FMT_HEX, bap.toHex().data(), 0, nullptr);
gcry_mpi_scan(&q, GCRYMPI_FMT_HEX, baq.toHex().data(), 0, nullptr);
mpi_invm(u, q, p);
iqmp_hex.resize(bap.length() * 2);
gcry_mpi_print(GCRYMPI_FMT_HEX, reinterpret_cast<unsigned char*>(iqmp_hex.data()), iqmp_hex.size(), nullptr, u);
gcry_mpi_release(u);
gcry_mpi_release(p);
gcry_mpi_release(q);
return QByteArray::fromHex(QString(iqmp_hex).toLatin1());
}
}
bool ASN1Key::parseDSA(QByteArray& ba, OpenSSHKey& key)
{
BinaryStream stream(&ba);
if (!parseHeader(stream, KEY_ZERO)) {
return false;
}
QByteArray p, q, g, y, x;
readInt(stream, p);
readInt(stream, q);
readInt(stream, g);
readInt(stream, y);
readInt(stream, x);
QList<QByteArray> publicData;
publicData.append(p);
publicData.append(q);
publicData.append(g);
publicData.append(y);
QList<QByteArray> privateData;
privateData.append(p);
privateData.append(q);
privateData.append(g);
privateData.append(y);
privateData.append(x);
key.setType("ssh-dss");
key.setPublicData(publicData);
key.setPrivateData(privateData);
key.setComment("");
return true;
}
bool ASN1Key::parseRSA(QByteArray& ba, OpenSSHKey& key)
{
BinaryStream stream(&ba);
if (!parseHeader(stream, KEY_ZERO)) {
return false;
}
QByteArray n, e, d, p, q, dp, dq, qinv;
readInt(stream, n);
readInt(stream, e);
readInt(stream, d);
readInt(stream, p);
readInt(stream, q);
readInt(stream, dp);
readInt(stream, dq);
readInt(stream, qinv);
QList<QByteArray> publicData;
publicData.append(e);
publicData.append(n);
QList<QByteArray> privateData;
privateData.append(n);
privateData.append(e);
privateData.append(d);
privateData.append(calculateIqmp(p, q));
privateData.append(p);
privateData.append(q);
key.setType("ssh-rsa");
key.setPublicData(publicData);
key.setPrivateData(privateData);
key.setComment("");
return true;
}

View file

@ -1,31 +0,0 @@
/*
* Copyright (C) 2018 Toni Spets <toni.spets@iki.fi>
* Copyright (C) 2018 KeePassXC Team <team@keepassxc.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 or (at your option)
* version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ASN1KEY_H
#define ASN1KEY_H
#include "OpenSSHKey.h"
#include <QtCore>
namespace ASN1Key
{
bool parseDSA(QByteArray& ba, OpenSSHKey& key);
bool parseRSA(QByteArray& ba, OpenSSHKey& key);
}
#endif // ASN1KEY_H

View file

@ -1,216 +0,0 @@
/*
* Copyright (C) 2017 Toni Spets <toni.spets@iki.fi>
* Copyright (C) 2017 KeePassXC Team <team@keepassxc.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 or (at your option)
* version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "BinaryStream.h"
#include <QtEndian>
BinaryStream::BinaryStream(QObject* parent)
: QObject(parent)
, m_timeout(-1)
{
}
BinaryStream::BinaryStream(QIODevice* device)
: QObject(device)
, m_timeout(-1)
, m_device(device)
{
}
BinaryStream::BinaryStream(QByteArray* ba, QObject* parent)
: QObject(parent)
, m_timeout(-1)
{
setData(ba);
}
BinaryStream::~BinaryStream()
{
}
const QString BinaryStream::errorString() const
{
return m_error;
}
QIODevice* BinaryStream::device() const
{
return m_device;
}
void BinaryStream::setDevice(QIODevice* device)
{
m_device = device;
}
void BinaryStream::setData(QByteArray* ba)
{
m_buffer.reset(new QBuffer(ba));
m_buffer->open(QIODevice::ReadWrite);
m_device = m_buffer.data();
}
void BinaryStream::setTimeout(int timeout)
{
m_timeout = timeout;
}
bool BinaryStream::read(char* ptr, qint64 size)
{
qint64 pos = 0;
while (pos < size) {
if (m_device->bytesAvailable() == 0) {
if (!m_device->waitForReadyRead(m_timeout)) {
m_error = m_device->errorString();
return false;
}
}
qint64 nread = m_device->read(ptr + pos, size - pos);
if (nread == -1) {
m_error = m_device->errorString();
return false;
}
pos += nread;
}
return true;
}
bool BinaryStream::read(QByteArray& ba)
{
return read(ba.data(), ba.length());
}
bool BinaryStream::read(quint32& i)
{
if (read(reinterpret_cast<char*>(&i), sizeof(i))) {
i = qFromBigEndian<quint32>(i);
return true;
}
return false;
}
bool BinaryStream::read(quint16& i)
{
if (read(reinterpret_cast<char*>(&i), sizeof(i))) {
i = qFromBigEndian<quint16>(i);
return true;
}
return false;
}
bool BinaryStream::read(quint8& i)
{
return read(reinterpret_cast<char*>(&i), sizeof(i));
}
bool BinaryStream::readString(QByteArray& ba)
{
quint32 length;
if (!read(length)) {
return false;
}
ba.resize(length);
if (!read(ba.data(), ba.length())) {
return false;
}
return true;
}
bool BinaryStream::readString(QString& str)
{
QByteArray ba;
if (!readString(ba)) {
return false;
}
str = str.fromLatin1(ba);
return true;
}
bool BinaryStream::write(const char* ptr, qint64 size)
{
if (m_device->write(ptr, size) < 0) {
m_error = m_device->errorString();
return false;
}
return true;
}
bool BinaryStream::flush()
{
if (!m_device->waitForBytesWritten(m_timeout)) {
m_error = m_device->errorString();
return false;
}
return true;
}
bool BinaryStream::write(const QByteArray& ba)
{
return write(ba.data(), ba.length());
}
bool BinaryStream::write(quint32 i)
{
i = qToBigEndian<quint32>(i);
return write(reinterpret_cast<char*>(&i), sizeof(i));
}
bool BinaryStream::write(quint16 i)
{
i = qToBigEndian<quint16>(i);
return write(reinterpret_cast<char*>(&i), sizeof(i));
}
bool BinaryStream::write(quint8 i)
{
return write(reinterpret_cast<char*>(&i), sizeof(i));
}
bool BinaryStream::writeString(const QByteArray& ba)
{
if (!write(static_cast<quint32>(ba.length()))) {
return false;
}
if (!write(ba)) {
return false;
}
return true;
}
bool BinaryStream::writeString(const QString& s)
{
return writeString(s.toLatin1());
}

View file

@ -1,68 +0,0 @@
/*
* Copyright (C) 2017 Toni Spets <toni.spets@iki.fi>
* Copyright (C) 2017 KeePassXC Team <team@keepassxc.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 or (at your option)
* version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef BINARYSTREAM_H
#define BINARYSTREAM_H
#include <QBuffer>
#include <QIODevice>
#include <QObject>
class BinaryStream : QObject
{
Q_OBJECT
public:
BinaryStream(QObject* parent = nullptr);
BinaryStream(QIODevice* device);
BinaryStream(QByteArray* ba, QObject* parent = nullptr);
~BinaryStream();
const QString errorString() const;
QIODevice* device() const;
void setDevice(QIODevice* device);
void setData(QByteArray* ba);
void setTimeout(int timeout);
bool read(QByteArray& ba);
bool read(quint32& i);
bool read(quint16& i);
bool read(quint8& i);
bool readString(QByteArray& ba);
bool readString(QString& s);
bool write(const QByteArray& ba);
bool write(quint32 i);
bool write(quint16 i);
bool write(quint8 i);
bool writeString(const QByteArray& ba);
bool writeString(const QString& s);
bool flush();
protected:
bool read(char* ptr, qint64 len);
bool write(const char* ptr, qint64 len);
private:
int m_timeout;
QString m_error;
QIODevice* m_device;
QScopedPointer<QBuffer> m_buffer;
};
#endif // BINARYSTREAM_H

View file

@ -2,17 +2,12 @@ if(WITH_XC_SSHAGENT)
include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
set(sshagent_SOURCES
bcrypt_pbkdf.cpp
blowfish.c
AgentSettingsPage.cpp
AgentSettingsWidget.cpp
BinaryStream.cpp
KeeAgentSettings.cpp
OpenSSHKey.cpp
ASN1Key.cpp
SSHAgent.cpp
)
add_library(sshagent STATIC ${sshagent_SOURCES})
target_link_libraries(sshagent Qt5::Core Qt5::Widgets Qt5::Network ${GCRYPT_LIBRARIES})
target_link_libraries(sshagent Qt5::Core Qt5::Widgets Qt5::Network ${GCRYPT_LIBRARIES} ${crypto_ssh_LIB})
endif()

View file

@ -1,587 +0,0 @@
/*
* Copyright (C) 2017 Toni Spets <toni.spets@iki.fi>
* Copyright (C) 2017 KeePassXC Team <team@keepassxc.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 or (at your option)
* version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "OpenSSHKey.h"
#include "ASN1Key.h"
#include "crypto/SymmetricCipher.h"
#include <QCryptographicHash>
#include <QRegularExpression>
#include <QStringList>
const QString OpenSSHKey::TYPE_DSA = "DSA PRIVATE KEY";
const QString OpenSSHKey::TYPE_RSA = "RSA PRIVATE KEY";
const QString OpenSSHKey::TYPE_OPENSSH = "OPENSSH PRIVATE KEY";
// bcrypt_pbkdf.cpp
int bcrypt_pbkdf(const QByteArray& pass, const QByteArray& salt, QByteArray& key, quint32 rounds);
OpenSSHKey::OpenSSHKey(QObject* parent)
: QObject(parent)
, m_type(QString())
, m_cipherName(QString("none"))
, m_kdfName(QString("none"))
, m_kdfOptions(QByteArray())
, m_rawPrivateData(QByteArray())
, m_publicData(QList<QByteArray>())
, m_privateData(QList<QByteArray>())
, m_privateType(QString())
, m_comment(QString())
, m_error(QString())
{
}
OpenSSHKey::OpenSSHKey(const OpenSSHKey& other)
: QObject(nullptr)
, m_type(other.m_type)
, m_cipherName(other.m_cipherName)
, m_kdfName(other.m_kdfName)
, m_kdfOptions(other.m_kdfOptions)
, m_rawPrivateData(other.m_rawPrivateData)
, m_publicData(other.m_publicData)
, m_privateData(other.m_privateData)
, m_comment(other.m_comment)
, m_error(other.m_error)
{
}
bool OpenSSHKey::operator==(const OpenSSHKey& other) const
{
// close enough for now
return (fingerprint() == other.fingerprint());
}
const QString OpenSSHKey::cipherName() const
{
return m_cipherName;
}
const QString OpenSSHKey::type() const
{
return m_type;
}
int OpenSSHKey::keyLength() const
{
if (m_type == "ssh-dss" && m_publicData.length() == 4) {
return (m_publicData[0].length() - 1) * 8;
} else if (m_type == "ssh-rsa" && m_publicData.length() == 2) {
return (m_publicData[1].length() - 1) * 8;
} else if (m_type.startsWith("ecdsa-sha2-") && m_publicData.length() == 2) {
return (m_publicData[1].length() - 1) * 4;
} else if (m_type == "ssh-ed25519" && m_publicData.length() == 1) {
return m_publicData[0].length() * 8;
}
return 0;
}
const QString OpenSSHKey::fingerprint(QCryptographicHash::Algorithm algo) const
{
if (m_publicData.isEmpty()) {
return {};
}
QByteArray publicKey;
BinaryStream stream(&publicKey);
stream.writeString(m_type);
for (QByteArray ba : m_publicData) {
stream.writeString(ba);
}
QByteArray rawHash = QCryptographicHash::hash(publicKey, algo);
if (algo == QCryptographicHash::Md5) {
QString md5Hash = QString::fromLatin1(rawHash.toHex());
QStringList md5HashParts;
for (int i = 0; i < md5Hash.length(); i += 2) {
md5HashParts.append(md5Hash.mid(i, 2));
}
return "MD5:" + md5HashParts.join(':');
} else if (algo == QCryptographicHash::Sha256) {
return "SHA256:" + QString::fromLatin1(rawHash.toBase64(QByteArray::OmitTrailingEquals));
}
return "HASH:" + QString::fromLatin1(rawHash.toHex());
}
const QString OpenSSHKey::comment() const
{
return m_comment;
}
const QString OpenSSHKey::publicKey() const
{
if (m_publicData.isEmpty()) {
return {};
}
QByteArray publicKey;
BinaryStream stream(&publicKey);
stream.writeString(m_type);
for (QByteArray ba : m_publicData) {
stream.writeString(ba);
}
return m_type + " " + QString::fromLatin1(publicKey.toBase64()) + " " + m_comment;
}
const QString OpenSSHKey::errorString() const
{
return m_error;
}
void OpenSSHKey::setType(const QString& type)
{
m_type = type;
}
void OpenSSHKey::setPublicData(const QList<QByteArray>& data)
{
m_publicData = data;
}
void OpenSSHKey::setPrivateData(const QList<QByteArray>& data)
{
m_privateData = data;
}
void OpenSSHKey::setComment(const QString& comment)
{
m_comment = comment;
}
void OpenSSHKey::clearPrivate()
{
m_rawPrivateData.clear();
m_privateData.clear();
}
bool OpenSSHKey::parsePEM(const QByteArray& in, QByteArray& out)
{
QString pem = QString::fromLatin1(in);
QStringList rows = pem.split(QRegularExpression("(?:\r?\n|\r)"), QString::SkipEmptyParts);
if (rows.length() < 3) {
m_error = tr("Invalid key file, expecting an OpenSSH key");
return false;
}
QString begin = rows.first();
QString end = rows.last();
QRegularExpressionMatch beginMatch = QRegularExpression("^-----BEGIN ([^\\-]+)-----$").match(begin);
QRegularExpressionMatch endMatch = QRegularExpression("^-----END ([^\\-]+)-----$").match(end);
if (!beginMatch.hasMatch() || !endMatch.hasMatch()) {
m_error = tr("Invalid key file, expecting an OpenSSH key");
return false;
}
if (beginMatch.captured(1) != endMatch.captured(1)) {
m_error = tr("PEM boundary mismatch");
return false;
}
m_privateType = beginMatch.captured(1);
rows.removeFirst();
rows.removeLast();
QRegularExpression keyValueExpr = QRegularExpression("^([A-Za-z0-9-]+): (.+)$");
QMap<QString, QString> pemOptions;
do {
QRegularExpressionMatch keyValueMatch = keyValueExpr.match(rows.first());
if (!keyValueMatch.hasMatch()) {
break;
}
pemOptions.insert(keyValueMatch.captured(1), keyValueMatch.captured(2));
rows.removeFirst();
} while (!rows.isEmpty());
if (pemOptions.value("Proc-Type").compare("4,encrypted", Qt::CaseInsensitive) == 0) {
m_kdfName = "md5";
m_cipherName = pemOptions.value("DEK-Info").section(",", 0, 0);
m_cipherIV = QByteArray::fromHex(pemOptions.value("DEK-Info").section(",", 1, 1).toLatin1());
}
out = QByteArray::fromBase64(rows.join("").toLatin1());
if (out.isEmpty()) {
m_error = tr("Base64 decoding failed");
return false;
}
return true;
}
bool OpenSSHKey::parse(const QByteArray& in)
{
QByteArray data;
if (!parsePEM(in, data)) {
return false;
}
if (m_privateType == TYPE_DSA || m_privateType == TYPE_RSA) {
m_rawPrivateData = data;
} else if (m_privateType == TYPE_OPENSSH) {
BinaryStream stream(&data);
QByteArray magic;
magic.resize(15);
if (!stream.read(magic)) {
m_error = tr("Key file way too small.");
return false;
}
if (QString::fromLatin1(magic) != "openssh-key-v1") {
m_error = tr("Key file magic header id invalid");
return false;
}
stream.readString(m_cipherName);
stream.readString(m_kdfName);
stream.readString(m_kdfOptions);
quint32 numberOfKeys;
stream.read(numberOfKeys);
if (numberOfKeys == 0) {
m_error = tr("Found zero keys");
return false;
}
for (quint32 i = 0; i < numberOfKeys; ++i) {
QByteArray publicKey;
if (!stream.readString(publicKey)) {
m_error = tr("Failed to read public key.");
return false;
}
if (i == 0) {
BinaryStream publicStream(&publicKey);
if (!readPublic(publicStream)) {
return false;
}
}
}
// padded list of keys
if (!stream.readString(m_rawPrivateData)) {
m_error = tr("Corrupted key file, reading private key failed");
return false;
}
} else {
m_error = tr("Unsupported key type: %1").arg(m_privateType);
return false;
}
// load private if no encryption
if (!encrypted()) {
return openPrivateKey();
}
return true;
}
bool OpenSSHKey::encrypted() const
{
return (m_cipherName != "none");
}
bool OpenSSHKey::openPrivateKey(const QString& passphrase)
{
QScopedPointer<SymmetricCipher> cipher;
if (!m_privateData.isEmpty()) {
return true;
}
if (m_rawPrivateData.isEmpty()) {
m_error = tr("No private key payload to decrypt");
return false;
}
if (m_cipherName.compare("aes-128-cbc", Qt::CaseInsensitive) == 0) {
cipher.reset(new SymmetricCipher(SymmetricCipher::Aes128, SymmetricCipher::Cbc, SymmetricCipher::Decrypt));
} else if (m_cipherName == "aes256-cbc" || m_cipherName.compare("aes-256-cbc", Qt::CaseInsensitive) == 0) {
cipher.reset(new SymmetricCipher(SymmetricCipher::Aes256, SymmetricCipher::Cbc, SymmetricCipher::Decrypt));
} else if (m_cipherName == "aes256-ctr" || m_cipherName.compare("aes-256-ctr", Qt::CaseInsensitive) == 0) {
cipher.reset(new SymmetricCipher(SymmetricCipher::Aes256, SymmetricCipher::Ctr, SymmetricCipher::Decrypt));
} else if (m_cipherName != "none") {
m_error = tr("Unknown cipher: %1").arg(m_cipherName);
return false;
}
if (m_kdfName == "bcrypt") {
if (!cipher) {
m_error = tr("Trying to run KDF without cipher");
return false;
}
if (passphrase.isEmpty()) {
m_error = tr("Passphrase is required to decrypt this key");
return false;
}
BinaryStream optionStream(&m_kdfOptions);
QByteArray salt;
quint32 rounds;
optionStream.readString(salt);
optionStream.read(rounds);
QByteArray decryptKey;
decryptKey.fill(0, cipher->keySize() + cipher->blockSize());
QByteArray phraseData = passphrase.toUtf8();
if (bcrypt_pbkdf(phraseData, salt, decryptKey, rounds) < 0) {
m_error = tr("Key derivation failed, key file corrupted?");
return false;
}
QByteArray keyData, ivData;
keyData.setRawData(decryptKey.data(), cipher->keySize());
ivData.setRawData(decryptKey.data() + cipher->keySize(), cipher->blockSize());
cipher->init(keyData, ivData);
if (!cipher->init(keyData, ivData)) {
m_error = cipher->errorString();
return false;
}
} else if (m_kdfName == "md5") {
if (m_cipherIV.length() < 8) {
m_error = tr("Cipher IV is too short for MD5 kdf");
return false;
}
QByteArray keyData;
QByteArray mdBuf;
do {
QCryptographicHash hash(QCryptographicHash::Md5);
hash.addData(mdBuf);
hash.addData(passphrase.toUtf8());
hash.addData(m_cipherIV.data(), 8);
mdBuf = hash.result();
keyData.append(mdBuf);
} while(keyData.size() < cipher->keySize());
if (keyData.size() > cipher->keySize()) {
// If our key size isn't a multiple of 16 (e.g. AES-192 or something),
// then we will need to truncate it.
keyData.resize(cipher->keySize());
}
if (!cipher->init(keyData, m_cipherIV)) {
m_error = cipher->errorString();
return false;
}
} else if (m_kdfName != "none") {
m_error = tr("Unknown KDF: %1").arg(m_kdfName);
return false;
}
QByteArray rawPrivateData = m_rawPrivateData;
if (cipher && cipher->isInitalized()) {
bool ok = false;
rawPrivateData = cipher->process(rawPrivateData, &ok);
if (!ok) {
m_error = tr("Decryption failed, wrong passphrase?");
return false;
}
}
if (m_privateType == TYPE_DSA) {
if (!ASN1Key::parseDSA(rawPrivateData, *this)) {
m_error = tr("Decryption failed, wrong passphrase?");
return false;
}
return true;
} else if (m_privateType == TYPE_RSA) {
if (!ASN1Key::parseRSA(rawPrivateData, *this)) {
m_error = tr("Decryption failed, wrong passphrase?");
return false;
}
return true;
} else if (m_privateType == TYPE_OPENSSH) {
BinaryStream keyStream(&rawPrivateData);
quint32 checkInt1;
quint32 checkInt2;
keyStream.read(checkInt1);
keyStream.read(checkInt2);
if (checkInt1 != checkInt2) {
m_error = tr("Decryption failed, wrong passphrase?");
return false;
}
return readPrivate(keyStream);
}
m_error = tr("Unsupported key type: %1").arg(m_privateType);
return false;
}
bool OpenSSHKey::readPublic(BinaryStream& stream)
{
m_publicData.clear();
if (!stream.readString(m_type)) {
m_error = tr("Unexpected EOF while reading public key");
return false;
}
int keyParts;
if (m_type == "ssh-dss") {
keyParts = 4;
} else if (m_type == "ssh-rsa") {
keyParts = 2;
} else if (m_type.startsWith("ecdsa-sha2-")) {
keyParts = 2;
} else if (m_type == "ssh-ed25519") {
keyParts = 1;
} else {
m_error = tr("Unknown key type: %1").arg(m_type);
return false;
}
for (int i = 0; i < keyParts; ++i) {
QByteArray t;
if (!stream.readString(t)) {
m_error = tr("Unexpected EOF while reading public key");
return false;
}
m_publicData.append(t);
}
return true;
}
bool OpenSSHKey::readPrivate(BinaryStream& stream)
{
m_privateData.clear();
if (!stream.readString(m_type)) {
m_error = tr("Unexpected EOF while reading private key");
return false;
}
int keyParts;
if (m_type == "ssh-dss") {
keyParts = 5;
} else if (m_type == "ssh-rsa") {
keyParts = 6;
} else if (m_type.startsWith("ecdsa-sha2-")) {
keyParts = 3;
} else if (m_type == "ssh-ed25519") {
keyParts = 2;
} else {
m_error = tr("Unknown key type: %1").arg(m_type);
return false;
}
for (int i = 0; i < keyParts; ++i) {
QByteArray t;
if (!stream.readString(t)) {
m_error = tr("Unexpected EOF while reading private key");
return false;
}
m_privateData.append(t);
}
if (!stream.readString(m_comment)) {
m_error = tr("Unexpected EOF while reading private key");
return false;
}
return true;
}
bool OpenSSHKey::writePublic(BinaryStream& stream)
{
if (m_publicData.isEmpty()) {
m_error = tr("Can't write public key as it is empty");
return false;
}
if (!stream.writeString(m_type)) {
m_error = tr("Unexpected EOF when writing public key");
return false;
}
for (QByteArray t : m_publicData) {
if (!stream.writeString(t)) {
m_error = tr("Unexpected EOF when writing public key");
return false;
}
}
return true;
}
bool OpenSSHKey::writePrivate(BinaryStream& stream)
{
if (m_privateData.isEmpty()) {
m_error = tr("Can't write private key as it is empty");
return false;
}
if (!stream.writeString(m_type)) {
m_error = tr("Unexpected EOF when writing private key");
return false;
}
for (QByteArray t : m_privateData) {
if (!stream.writeString(t)) {
m_error = tr("Unexpected EOF when writing private key");
return false;
}
}
if (!stream.writeString(m_comment)) {
m_error = tr("Unexpected EOF when writing private key");
return false;
}
return true;
}
uint qHash(const OpenSSHKey& key)
{
return qHash(key.fingerprint());
}

View file

@ -1,79 +0,0 @@
/*
* Copyright (C) 2017 Toni Spets <toni.spets@iki.fi>
* Copyright (C) 2017 KeePassXC Team <team@keepassxc.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 or (at your option)
* version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef OPENSSHKEY_H
#define OPENSSHKEY_H
#include "BinaryStream.h"
#include <QtCore>
class OpenSSHKey : QObject
{
Q_OBJECT
public:
explicit OpenSSHKey(QObject* parent = nullptr);
OpenSSHKey(const OpenSSHKey& other);
bool operator==(const OpenSSHKey& other) const;
bool parse(const QByteArray& in);
bool encrypted() const;
bool openPrivateKey(const QString& passphrase = QString());
const QString cipherName() const;
const QString type() const;
int keyLength() const;
const QString fingerprint(QCryptographicHash::Algorithm algo = QCryptographicHash::Sha256) const;
const QString comment() const;
const QString publicKey() const;
const QString errorString() const;
void setType(const QString& type);
void setPublicData(const QList<QByteArray>& data);
void setPrivateData(const QList<QByteArray>& data);
void setComment(const QString& comment);
void clearPrivate();
bool readPublic(BinaryStream& stream);
bool readPrivate(BinaryStream& stream);
bool writePublic(BinaryStream& stream);
bool writePrivate(BinaryStream& stream);
private:
static const QString TYPE_DSA;
static const QString TYPE_RSA;
static const QString TYPE_OPENSSH;
bool parsePEM(const QByteArray& in, QByteArray& out);
QString m_type;
QString m_cipherName;
QByteArray m_cipherIV;
QString m_kdfName;
QByteArray m_kdfOptions;
QByteArray m_rawPrivateData;
QList<QByteArray> m_publicData;
QList<QByteArray> m_privateData;
QString m_privateType;
QString m_comment;
QString m_error;
};
uint qHash(const OpenSSHKey& key);
#endif // OPENSSHKEY_H

View file

@ -17,8 +17,10 @@
*/
#include "SSHAgent.h"
#include "BinaryStream.h"
#include "KeeAgentSettings.h"
#include "crypto/ssh/OpenSSHKey.h"
#include "crypto/ssh/BinaryStream.h"
#include "sshagent/KeeAgentSettings.h"
#ifndef Q_OS_WIN
#include <QtNetwork>
@ -306,11 +308,11 @@ void SSHAgent::databaseModeChanged(DatabaseWidget::Mode mode)
OpenSSHKey key;
if (!key.parse(keyData)) {
if (!key.parsePKCS1PEM(keyData)) {
continue;
}
if (!key.openPrivateKey(e->password())) {
if (!key.openKey(e->password())) {
continue;
}

View file

@ -16,14 +16,14 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef AGENTCLIENT_H
#define AGENTCLIENT_H
#ifndef KEEPASSXC_SSHAGENT_H
#define KEEPASSXC_SSHAGENT_H
#include "OpenSSHKey.h"
#include <QList>
#include <QtCore>
#include "gui/DatabaseWidget.h"
#include "crypto/ssh/OpenSSHKey.h"
class SSHAgent : public QObject
{
@ -75,4 +75,4 @@ private:
QString m_error;
};
#endif // AGENTCLIENT_H
#endif // KEEPASSXC_SSHAGENT_H

View file

@ -1,172 +0,0 @@
/* $OpenBSD: bcrypt_pbkdf.c,v 1.13 2015/01/12 03:20:04 tedu Exp $ */
/*
* Copyright (c) 2013 Ted Unangst <tedu@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <QtCore>
extern "C" {
#include "blf.h"
}
#define MINIMUM(a,b) (((a) < (b)) ? (a) : (b))
/*
* pkcs #5 pbkdf2 implementation using the "bcrypt" hash
*
* The bcrypt hash function is derived from the bcrypt password hashing
* function with the following modifications:
* 1. The input password and salt are preprocessed with SHA512.
* 2. The output length is expanded to 256 bits.
* 3. Subsequently the magic string to be encrypted is lengthened and modifed
* to "OxychromaticBlowfishSwatDynamite"
* 4. The hash function is defined to perform 64 rounds of initial state
* expansion. (More rounds are performed by iterating the hash.)
*
* Note that this implementation pulls the SHA512 operations into the caller
* as a performance optimization.
*
* One modification from official pbkdf2. Instead of outputting key material
* linearly, we mix it. pbkdf2 has a known weakness where if one uses it to
* generate (e.g.) 512 bits of key material for use as two 256 bit keys, an
* attacker can merely run once through the outer loop, but the user
* always runs it twice. Shuffling output bytes requires computing the
* entirety of the key material to assemble any subkey. This is something a
* wise caller could do; we just do it for you.
*/
#define BCRYPT_WORDS 8
#define BCRYPT_HASHSIZE (BCRYPT_WORDS * 4)
#define SHA512_DIGEST_LENGTH 64
// FIXME: explicit_bzero exists to ensure bzero is not optimized out
#define explicit_bzero bzero
static void
bcrypt_hash(const quint8* sha2pass, const quint8* sha2salt, quint8* out)
{
blf_ctx state;
quint8 ciphertext[BCRYPT_HASHSIZE] = // "OxychromaticBlowfishSwatDynamite"
{ 0x4f, 0x78, 0x79, 0x63, 0x68, 0x72, 0x6f, 0x6d,
0x61, 0x74, 0x69, 0x63, 0x42, 0x6c, 0x6f, 0x77,
0x66, 0x69, 0x73, 0x68, 0x53, 0x77, 0x61, 0x74,
0x44, 0x79, 0x6e, 0x61, 0x6d, 0x69, 0x74, 0x65 };
quint32 cdata[BCRYPT_WORDS];
int i;
quint16 j;
size_t shalen = SHA512_DIGEST_LENGTH;
/* key expansion */
Blowfish_initstate(&state);
Blowfish_expandstate(&state, sha2salt, shalen, sha2pass, shalen);
for (i = 0; i < 64; i++) {
Blowfish_expand0state(&state, sha2salt, shalen);
Blowfish_expand0state(&state, sha2pass, shalen);
}
/* encryption */
j = 0;
for (i = 0; i < BCRYPT_WORDS; i++)
cdata[i] = Blowfish_stream2word(ciphertext, sizeof(ciphertext),
&j);
for (i = 0; i < 64; i++)
blf_enc(&state, cdata, sizeof(cdata) / sizeof(uint64_t));
/* copy out */
for (i = 0; i < BCRYPT_WORDS; i++) {
out[4 * i + 3] = (cdata[i] >> 24) & 0xff;
out[4 * i + 2] = (cdata[i] >> 16) & 0xff;
out[4 * i + 1] = (cdata[i] >> 8) & 0xff;
out[4 * i + 0] = cdata[i] & 0xff;
}
/* zap */
explicit_bzero(ciphertext, sizeof(ciphertext));
explicit_bzero(cdata, sizeof(cdata));
explicit_bzero(&state, sizeof(state));
}
int bcrypt_pbkdf(const QByteArray& pass, const QByteArray& salt, QByteArray& key, quint32 rounds)
{
QCryptographicHash ctx(QCryptographicHash::Sha512);
QByteArray sha2pass;
QByteArray sha2salt;
quint8 out[BCRYPT_HASHSIZE];
quint8 tmpout[BCRYPT_HASHSIZE];
quint8 countsalt[4];
/* nothing crazy */
if (rounds < 1) {
return -1;
}
if (pass.isEmpty() || salt.isEmpty() || key.isEmpty() ||
static_cast<quint32>(key.length()) > sizeof(out) * sizeof(out)) {
return -1;
}
quint32 stride = (key.length() + sizeof(out) - 1) / sizeof(out);
quint32 amt = (key.length() + stride - 1) / stride;
/* collapse password */
ctx.reset();
ctx.addData(pass);
sha2pass = ctx.result();
/* generate key, sizeof(out) at a time */
for (quint32 count = 1, keylen = key.length(); keylen > 0; count++) {
countsalt[0] = (count >> 24) & 0xff;
countsalt[1] = (count >> 16) & 0xff;
countsalt[2] = (count >> 8) & 0xff;
countsalt[3] = count & 0xff;
/* first round, salt is salt */
ctx.reset();
ctx.addData(salt);
ctx.addData(reinterpret_cast<char *>(countsalt), sizeof(countsalt));
sha2salt = ctx.result();
bcrypt_hash(reinterpret_cast<quint8 *>(sha2pass.data()), reinterpret_cast<quint8 *>(sha2salt.data()), tmpout);
memcpy(out, tmpout, sizeof(out));
for (quint32 i = 1; i < rounds; i++) {
/* subsequent rounds, salt is previous output */
ctx.reset();
ctx.addData(reinterpret_cast<char *>(tmpout), sizeof(tmpout));
sha2salt = ctx.result();
bcrypt_hash(reinterpret_cast<quint8 *>(sha2pass.data()), reinterpret_cast<quint8 *>(sha2salt.data()), tmpout);
for (quint32 j = 0; j < sizeof(out); j++)
out[j] ^= tmpout[j];
}
/*
* pbkdf2 deviation: output the key material non-linearly.
*/
amt = MINIMUM(amt, keylen);
quint32 i;
for (i = 0; i < amt; i++) {
int dest = i * stride + (count - 1);
if (dest >= key.length())
break;
key.data()[dest] = out[i];
}
keylen -= i;
}
/* zap */
explicit_bzero(out, sizeof(out));
return 0;
}

View file

@ -1,88 +0,0 @@
/* $OpenBSD: blf.h,v 1.7 2007/03/14 17:59:41 grunk Exp $ */
/*
* Blowfish - a fast block cipher designed by Bruce Schneier
*
* Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Niels Provos.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _BLF_H_
#define _BLF_H_
#include "includes.h"
#if !defined(HAVE_BCRYPT_PBKDF) && !defined(HAVE_BLH_H)
/* Schneier specifies a maximum key length of 56 bytes.
* This ensures that every key bit affects every cipher
* bit. However, the subkeys can hold up to 72 bytes.
* Warning: For normal blowfish encryption only 56 bytes
* of the key affect all cipherbits.
*/
#define BLF_N 16 /* Number of Subkeys */
#define BLF_MAXKEYLEN ((BLF_N-2)*4) /* 448 bits */
#define BLF_MAXUTILIZED ((BLF_N+2)*4) /* 576 bits */
/* Blowfish context */
typedef struct BlowfishContext {
u_int32_t S[4][256]; /* S-Boxes */
u_int32_t P[BLF_N + 2]; /* Subkeys */
} blf_ctx;
/* Raw access to customized Blowfish
* blf_key is just:
* Blowfish_initstate( state )
* Blowfish_expand0state( state, key, keylen )
*/
void Blowfish_encipher(blf_ctx *, u_int32_t *, u_int32_t *);
void Blowfish_decipher(blf_ctx *, u_int32_t *, u_int32_t *);
void Blowfish_initstate(blf_ctx *);
void Blowfish_expand0state(blf_ctx *, const u_int8_t *, u_int16_t);
void Blowfish_expandstate
(blf_ctx *, const u_int8_t *, u_int16_t, const u_int8_t *, u_int16_t);
/* Standard Blowfish */
void blf_key(blf_ctx *, const u_int8_t *, u_int16_t);
void blf_enc(blf_ctx *, u_int32_t *, u_int16_t);
void blf_dec(blf_ctx *, u_int32_t *, u_int16_t);
void blf_ecb_encrypt(blf_ctx *, u_int8_t *, u_int32_t);
void blf_ecb_decrypt(blf_ctx *, u_int8_t *, u_int32_t);
void blf_cbc_encrypt(blf_ctx *, u_int8_t *, u_int8_t *, u_int32_t);
void blf_cbc_decrypt(blf_ctx *, u_int8_t *, u_int8_t *, u_int32_t);
/* Converts u_int8_t to u_int32_t */
u_int32_t Blowfish_stream2word(const u_int8_t *, u_int16_t , u_int16_t *);
#endif /* !defined(HAVE_BCRYPT_PBKDF) && !defined(HAVE_BLH_H) */
#endif /* _BLF_H */

View file

@ -1,696 +0,0 @@
/* $OpenBSD: blowfish.c,v 1.18 2004/11/02 17:23:26 hshoexer Exp $ */
/*
* Blowfish block cipher for OpenBSD
* Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
* All rights reserved.
*
* Implementation advice by David Mazieres <dm@lcs.mit.edu>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Niels Provos.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* This code is derived from section 14.3 and the given source
* in section V of Applied Cryptography, second edition.
* Blowfish is an unpatented fast block cipher designed by
* Bruce Schneier.
*/
#include "includes.h"
#if !defined(HAVE_BCRYPT_PBKDF) && (!defined(HAVE_BLOWFISH_INITSTATE) || \
!defined(HAVE_BLOWFISH_EXPAND0STATE) || !defined(HAVE_BLF_ENC))
#if 0
#include <stdio.h> /* used for debugging */
#include <string.h>
#endif
#include <sys/types.h>
#ifdef HAVE_BLF_H
#include <blf.h>
#endif
#undef inline
#ifdef __GNUC__
#define inline __inline
#else /* !__GNUC__ */
#define inline
#endif /* !__GNUC__ */
/* Function for Feistel Networks */
#define F(s, x) ((((s)[ (((x)>>24)&0xFF)] \
+ (s)[0x100 + (((x)>>16)&0xFF)]) \
^ (s)[0x200 + (((x)>> 8)&0xFF)]) \
+ (s)[0x300 + ( (x) &0xFF)])
#define BLFRND(s,p,i,j,n) (i ^= F(s,j) ^ (p)[n])
void
Blowfish_encipher(blf_ctx *c, u_int32_t *xl, u_int32_t *xr)
{
u_int32_t Xl;
u_int32_t Xr;
u_int32_t *s = c->S[0];
u_int32_t *p = c->P;
Xl = *xl;
Xr = *xr;
Xl ^= p[0];
BLFRND(s, p, Xr, Xl, 1); BLFRND(s, p, Xl, Xr, 2);
BLFRND(s, p, Xr, Xl, 3); BLFRND(s, p, Xl, Xr, 4);
BLFRND(s, p, Xr, Xl, 5); BLFRND(s, p, Xl, Xr, 6);
BLFRND(s, p, Xr, Xl, 7); BLFRND(s, p, Xl, Xr, 8);
BLFRND(s, p, Xr, Xl, 9); BLFRND(s, p, Xl, Xr, 10);
BLFRND(s, p, Xr, Xl, 11); BLFRND(s, p, Xl, Xr, 12);
BLFRND(s, p, Xr, Xl, 13); BLFRND(s, p, Xl, Xr, 14);
BLFRND(s, p, Xr, Xl, 15); BLFRND(s, p, Xl, Xr, 16);
*xl = Xr ^ p[17];
*xr = Xl;
}
void
Blowfish_decipher(blf_ctx *c, u_int32_t *xl, u_int32_t *xr)
{
u_int32_t Xl;
u_int32_t Xr;
u_int32_t *s = c->S[0];
u_int32_t *p = c->P;
Xl = *xl;
Xr = *xr;
Xl ^= p[17];
BLFRND(s, p, Xr, Xl, 16); BLFRND(s, p, Xl, Xr, 15);
BLFRND(s, p, Xr, Xl, 14); BLFRND(s, p, Xl, Xr, 13);
BLFRND(s, p, Xr, Xl, 12); BLFRND(s, p, Xl, Xr, 11);
BLFRND(s, p, Xr, Xl, 10); BLFRND(s, p, Xl, Xr, 9);
BLFRND(s, p, Xr, Xl, 8); BLFRND(s, p, Xl, Xr, 7);
BLFRND(s, p, Xr, Xl, 6); BLFRND(s, p, Xl, Xr, 5);
BLFRND(s, p, Xr, Xl, 4); BLFRND(s, p, Xl, Xr, 3);
BLFRND(s, p, Xr, Xl, 2); BLFRND(s, p, Xl, Xr, 1);
*xl = Xr ^ p[0];
*xr = Xl;
}
void
Blowfish_initstate(blf_ctx *c)
{
/* P-box and S-box tables initialized with digits of Pi */
static const blf_ctx initstate =
{ {
{
0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7,
0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99,
0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e,
0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee,
0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef,
0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e,
0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440,
0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce,
0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e,
0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677,
0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032,
0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88,
0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e,
0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0,
0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98,
0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88,
0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6,
0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d,
0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7,
0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba,
0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f,
0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09,
0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb,
0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279,
0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab,
0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82,
0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573,
0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0,
0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790,
0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8,
0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0,
0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7,
0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad,
0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1,
0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9,
0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477,
0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49,
0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af,
0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5,
0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41,
0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400,
0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915,
0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a},
{
0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623,
0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266,
0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e,
0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6,
0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e,
0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1,
0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8,
0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff,
0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701,
0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7,
0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331,
0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf,
0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e,
0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87,
0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2,
0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16,
0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b,
0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509,
0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3,
0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f,
0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4,
0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960,
0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28,
0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802,
0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510,
0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf,
0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e,
0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50,
0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8,
0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281,
0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696,
0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128,
0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0,
0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0,
0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250,
0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3,
0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00,
0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061,
0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e,
0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735,
0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9,
0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340,
0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7},
{
0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934,
0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068,
0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840,
0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45,
0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a,
0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb,
0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6,
0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42,
0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2,
0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb,
0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b,
0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33,
0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3,
0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc,
0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564,
0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b,
0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922,
0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728,
0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e,
0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37,
0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804,
0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b,
0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb,
0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d,
0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350,
0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9,
0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe,
0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d,
0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f,
0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61,
0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9,
0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2,
0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e,
0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633,
0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169,
0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52,
0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5,
0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62,
0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76,
0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24,
0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4,
0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c,
0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0},
{
0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b,
0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe,
0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4,
0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8,
0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304,
0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22,
0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6,
0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9,
0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593,
0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51,
0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c,
0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b,
0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c,
0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd,
0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319,
0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb,
0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991,
0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32,
0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166,
0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae,
0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5,
0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47,
0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d,
0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84,
0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8,
0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd,
0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7,
0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38,
0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c,
0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525,
0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442,
0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964,
0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8,
0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d,
0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299,
0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02,
0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614,
0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a,
0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b,
0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0,
0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e,
0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9,
0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6}
},
{
0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,
0x9216d5d9, 0x8979fb1b
} };
*c = initstate;
}
u_int32_t
Blowfish_stream2word(const u_int8_t *data, u_int16_t databytes,
u_int16_t *current)
{
u_int8_t i;
u_int16_t j;
u_int32_t temp;
temp = 0x00000000;
j = *current;
for (i = 0; i < 4; i++, j++) {
if (j >= databytes)
j = 0;
temp = (temp << 8) | data[j];
}
*current = j;
return temp;
}
void
Blowfish_expand0state(blf_ctx *c, const u_int8_t *key, u_int16_t keybytes)
{
u_int16_t i;
u_int16_t j;
u_int16_t k;
u_int32_t temp;
u_int32_t datal;
u_int32_t datar;
j = 0;
for (i = 0; i < BLF_N + 2; i++) {
/* Extract 4 int8 to 1 int32 from keystream */
temp = Blowfish_stream2word(key, keybytes, &j);
c->P[i] = c->P[i] ^ temp;
}
j = 0;
datal = 0x00000000;
datar = 0x00000000;
for (i = 0; i < BLF_N + 2; i += 2) {
Blowfish_encipher(c, &datal, &datar);
c->P[i] = datal;
c->P[i + 1] = datar;
}
for (i = 0; i < 4; i++) {
for (k = 0; k < 256; k += 2) {
Blowfish_encipher(c, &datal, &datar);
c->S[i][k] = datal;
c->S[i][k + 1] = datar;
}
}
}
void
Blowfish_expandstate(blf_ctx *c, const u_int8_t *data, u_int16_t databytes,
const u_int8_t *key, u_int16_t keybytes)
{
u_int16_t i;
u_int16_t j;
u_int16_t k;
u_int32_t temp;
u_int32_t datal;
u_int32_t datar;
j = 0;
for (i = 0; i < BLF_N + 2; i++) {
/* Extract 4 int8 to 1 int32 from keystream */
temp = Blowfish_stream2word(key, keybytes, &j);
c->P[i] = c->P[i] ^ temp;
}
j = 0;
datal = 0x00000000;
datar = 0x00000000;
for (i = 0; i < BLF_N + 2; i += 2) {
datal ^= Blowfish_stream2word(data, databytes, &j);
datar ^= Blowfish_stream2word(data, databytes, &j);
Blowfish_encipher(c, &datal, &datar);
c->P[i] = datal;
c->P[i + 1] = datar;
}
for (i = 0; i < 4; i++) {
for (k = 0; k < 256; k += 2) {
datal ^= Blowfish_stream2word(data, databytes, &j);
datar ^= Blowfish_stream2word(data, databytes, &j);
Blowfish_encipher(c, &datal, &datar);
c->S[i][k] = datal;
c->S[i][k + 1] = datar;
}
}
}
void
blf_key(blf_ctx *c, const u_int8_t *k, u_int16_t len)
{
/* Initialize S-boxes and subkeys with Pi */
Blowfish_initstate(c);
/* Transform S-boxes and subkeys with key */
Blowfish_expand0state(c, k, len);
}
void
blf_enc(blf_ctx *c, u_int32_t *data, u_int16_t blocks)
{
u_int32_t *d;
u_int16_t i;
d = data;
for (i = 0; i < blocks; i++) {
Blowfish_encipher(c, d, d + 1);
d += 2;
}
}
void
blf_dec(blf_ctx *c, u_int32_t *data, u_int16_t blocks)
{
u_int32_t *d;
u_int16_t i;
d = data;
for (i = 0; i < blocks; i++) {
Blowfish_decipher(c, d, d + 1);
d += 2;
}
}
void
blf_ecb_encrypt(blf_ctx *c, u_int8_t *data, u_int32_t len)
{
u_int32_t l, r;
u_int32_t i;
for (i = 0; i < len; i += 8) {
l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
Blowfish_encipher(c, &l, &r);
data[0] = l >> 24 & 0xff;
data[1] = l >> 16 & 0xff;
data[2] = l >> 8 & 0xff;
data[3] = l & 0xff;
data[4] = r >> 24 & 0xff;
data[5] = r >> 16 & 0xff;
data[6] = r >> 8 & 0xff;
data[7] = r & 0xff;
data += 8;
}
}
void
blf_ecb_decrypt(blf_ctx *c, u_int8_t *data, u_int32_t len)
{
u_int32_t l, r;
u_int32_t i;
for (i = 0; i < len; i += 8) {
l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
Blowfish_decipher(c, &l, &r);
data[0] = l >> 24 & 0xff;
data[1] = l >> 16 & 0xff;
data[2] = l >> 8 & 0xff;
data[3] = l & 0xff;
data[4] = r >> 24 & 0xff;
data[5] = r >> 16 & 0xff;
data[6] = r >> 8 & 0xff;
data[7] = r & 0xff;
data += 8;
}
}
void
blf_cbc_encrypt(blf_ctx *c, u_int8_t *iv, u_int8_t *data, u_int32_t len)
{
u_int32_t l, r;
u_int32_t i, j;
for (i = 0; i < len; i += 8) {
for (j = 0; j < 8; j++)
data[j] ^= iv[j];
l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
Blowfish_encipher(c, &l, &r);
data[0] = l >> 24 & 0xff;
data[1] = l >> 16 & 0xff;
data[2] = l >> 8 & 0xff;
data[3] = l & 0xff;
data[4] = r >> 24 & 0xff;
data[5] = r >> 16 & 0xff;
data[6] = r >> 8 & 0xff;
data[7] = r & 0xff;
iv = data;
data += 8;
}
}
void
blf_cbc_decrypt(blf_ctx *c, u_int8_t *iva, u_int8_t *data, u_int32_t len)
{
u_int32_t l, r;
u_int8_t *iv;
u_int32_t i, j;
iv = data + len - 16;
data = data + len - 8;
for (i = len - 8; i >= 8; i -= 8) {
l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
Blowfish_decipher(c, &l, &r);
data[0] = l >> 24 & 0xff;
data[1] = l >> 16 & 0xff;
data[2] = l >> 8 & 0xff;
data[3] = l & 0xff;
data[4] = r >> 24 & 0xff;
data[5] = r >> 16 & 0xff;
data[6] = r >> 8 & 0xff;
data[7] = r & 0xff;
for (j = 0; j < 8; j++)
data[j] ^= iv[j];
iv -= 8;
data -= 8;
}
l = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3];
r = data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7];
Blowfish_decipher(c, &l, &r);
data[0] = l >> 24 & 0xff;
data[1] = l >> 16 & 0xff;
data[2] = l >> 8 & 0xff;
data[3] = l & 0xff;
data[4] = r >> 24 & 0xff;
data[5] = r >> 16 & 0xff;
data[6] = r >> 8 & 0xff;
data[7] = r & 0xff;
for (j = 0; j < 8; j++)
data[j] ^= iva[j];
}
#if 0
void
report(u_int32_t data[], u_int16_t len)
{
u_int16_t i;
for (i = 0; i < len; i += 2)
printf("Block %0hd: %08lx %08lx.\n",
i / 2, data[i], data[i + 1]);
}
void
main(void)
{
blf_ctx c;
char key[] = "AAAAA";
char key2[] = "abcdefghijklmnopqrstuvwxyz";
u_int32_t data[10];
u_int32_t data2[] =
{0x424c4f57l, 0x46495348l};
u_int16_t i;
/* First test */
for (i = 0; i < 10; i++)
data[i] = i;
blf_key(&c, (u_int8_t *) key, 5);
blf_enc(&c, data, 5);
blf_dec(&c, data, 1);
blf_dec(&c, data + 2, 4);
printf("Should read as 0 - 9.\n");
report(data, 10);
/* Second test */
blf_key(&c, (u_int8_t *) key2, strlen(key2));
blf_enc(&c, data2, 1);
printf("\nShould read as: 0x324ed0fe 0xf413a203.\n");
report(data2, 2);
blf_dec(&c, data2, 1);
report(data2, 2);
}
#endif
#endif /* !defined(HAVE_BCRYPT_PBKDF) && (!defined(HAVE_BLOWFISH_INITSTATE) || \
!defined(HAVE_BLOWFISH_EXPAND0STATE) || !defined(HAVE_BLF_ENC)) */

View file

@ -1,19 +0,0 @@
// mimic openSSH-portable's includes.h file to be able to use
// its unmodified blowfish code
#define HAVE_BLF_H
#ifndef _GNU_SOURCE
#define _GNU_SOURCE /* activate extra prototypes for glibc */
#endif
#include <sys/types.h>
#ifdef _WIN32
#include <stdint.h>
typedef uint32_t u_int32_t;
typedef uint16_t u_int16_t;
typedef uint8_t u_int8_t;
#define bzero(p, s) memset(p, 0, s)
#endif