mirror of
https://github.com/moparisthebest/Simba
synced 2024-11-11 11:55:02 -05:00
570 lines
18 KiB
ObjectPascal
570 lines
18 KiB
ObjectPascal
{==============================================================================|
|
|
| Project : Ararat Synapse | 001.001.000 |
|
|
|==============================================================================|
|
|
| Content: SSL/SSH support by Peter Gutmann's CryptLib |
|
|
|==============================================================================|
|
|
| Copyright (c)1999-2005, Lukas Gebauer |
|
|
| All rights reserved. |
|
|
| |
|
|
| Redistribution and use in source and binary forms, with or without |
|
|
| modification, are permitted provided that the following conditions are met: |
|
|
| |
|
|
| Redistributions of source code must retain the above copyright notice, this |
|
|
| list of conditions and the following disclaimer. |
|
|
| |
|
|
| 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. |
|
|
| |
|
|
| Neither the name of Lukas Gebauer nor the names of its contributors may |
|
|
| be used to endorse or promote products derived from this software without |
|
|
| specific prior written permission. |
|
|
| |
|
|
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 REGENTS OR CONTRIBUTORS 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. |
|
|
|==============================================================================|
|
|
| The Initial Developer of the Original Code is Lukas Gebauer (Czech Republic).|
|
|
| Portions created by Lukas Gebauer are Copyright (c)2005. |
|
|
| All Rights Reserved. |
|
|
|==============================================================================|
|
|
| Contributor(s): |
|
|
|==============================================================================|
|
|
| History: see HISTORY.HTM from distribution package |
|
|
| (Found at URL: http://www.ararat.cz/synapse/) |
|
|
|==============================================================================}
|
|
|
|
{:@abstract(SSL/SSH plugin for CryptLib)
|
|
|
|
This plugin requires cl32.dll at least version 3.2.0! It can be used on Win32
|
|
and Linux. This library is staticly linked - when you compile your application
|
|
with this plugin, you MUST distribute it with Cryptib library, otherwise you
|
|
cannot run your application!
|
|
|
|
It can work with keys and certificates stored as PKCS#15 only! It must be stored
|
|
as disk file only, you cannot load them from memory! Each file can hold multiple
|
|
keys and certificates. You must identify it by 'label' stored in
|
|
@link(TSSLCryptLib.PrivateKeyLabel).
|
|
|
|
If you need to use secure connection and authorize self by certificate
|
|
(each SSL/TLS server or client with client authorization), then use
|
|
@link(TCustomSSL.PrivateKeyFile), @link(TSSLCryptLib.PrivateKeyLabel) and
|
|
@link(TCustomSSL.KeyPassword) properties.
|
|
|
|
If you need to use server what verifying client certificates, then use
|
|
@link(TCustomSSL.CertCAFile) as PKCS#15 file with public keyas of allowed clients. Clients
|
|
with non-matching certificates will be rejected by cryptLib.
|
|
|
|
This plugin is capable to create Ad-Hoc certificates. When you start SSL/TLS
|
|
server without explicitly assigned key and certificate, then this plugin create
|
|
Ad-Hoc key and certificate for each incomming connection by self. It slowdown
|
|
accepting of new connections!
|
|
|
|
You can use this plugin for SSHv2 connections too! You must explicitly set
|
|
@link(TCustomSSL.SSLType) to value LT_SSHv2 and set @link(TCustomSSL.username)
|
|
and @link(TCustomSSL.password). You can use special SSH channels too, see
|
|
@link(TCustomSSL).
|
|
}
|
|
|
|
{$IFDEF FPC}
|
|
{$MODE DELPHI}
|
|
{$ENDIF}
|
|
{$H+}
|
|
|
|
unit ssl_cryptlib;
|
|
|
|
interface
|
|
|
|
uses
|
|
SysUtils,
|
|
blcksock, synsock, synautil, synacode,
|
|
cryptlib;
|
|
|
|
type
|
|
{:@abstract(class implementing CryptLib SSL/SSH plugin.)
|
|
Instance of this class will be created for each @link(TTCPBlockSocket).
|
|
You not need to create instance of this class, all is done by Synapse itself!}
|
|
TSSLCryptLib = class(TCustomSSL)
|
|
protected
|
|
FCryptSession: CRYPT_SESSION;
|
|
FPrivateKeyLabel: string;
|
|
FDelCert: Boolean;
|
|
FReadBuffer: string;
|
|
function SSLCheck(Value: integer): Boolean;
|
|
function Init(server:Boolean): Boolean;
|
|
function DeInit: Boolean;
|
|
function Prepare(server:Boolean): Boolean;
|
|
function GetString(const cryptHandle: CRYPT_HANDLE; const attributeType: CRYPT_ATTRIBUTE_TYPE): string;
|
|
function CreateSelfSignedCert(Host: string): Boolean; override;
|
|
function PopAll: string;
|
|
public
|
|
{:See @inherited}
|
|
constructor Create(const Value: TTCPBlockSocket); override;
|
|
destructor Destroy; override;
|
|
{:See @inherited}
|
|
function LibVersion: String; override;
|
|
{:See @inherited}
|
|
function LibName: String; override;
|
|
{:See @inherited}
|
|
procedure Assign(const Value: TCustomSSL); override;
|
|
{:See @inherited and @link(ssl_cryptlib) for more details.}
|
|
function Connect: boolean; override;
|
|
{:See @inherited and @link(ssl_cryptlib) for more details.}
|
|
function Accept: boolean; override;
|
|
{:See @inherited}
|
|
function Shutdown: boolean; override;
|
|
{:See @inherited}
|
|
function BiShutdown: boolean; override;
|
|
{:See @inherited}
|
|
function SendBuffer(Buffer: TMemory; Len: Integer): Integer; override;
|
|
{:See @inherited}
|
|
function RecvBuffer(Buffer: TMemory; Len: Integer): Integer; override;
|
|
{:See @inherited}
|
|
function WaitingData: Integer; override;
|
|
{:See @inherited}
|
|
function GetSSLVersion: string; override;
|
|
{:See @inherited}
|
|
function GetPeerSubject: string; override;
|
|
{:See @inherited}
|
|
function GetPeerIssuer: string; override;
|
|
{:See @inherited}
|
|
function GetPeerName: string; override;
|
|
{:See @inherited}
|
|
function GetPeerFingerprint: string; override;
|
|
published
|
|
{:name of certificate/key within PKCS#15 file. It can hold more then one
|
|
certificate/key and each certificate/key must have unique label within one file.}
|
|
property PrivateKeyLabel: string read FPrivateKeyLabel Write FPrivateKeyLabel;
|
|
end;
|
|
|
|
implementation
|
|
|
|
{==============================================================================}
|
|
|
|
constructor TSSLCryptLib.Create(const Value: TTCPBlockSocket);
|
|
begin
|
|
inherited Create(Value);
|
|
FcryptSession := CRYPT_SESSION(CRYPT_SESSION_NONE);
|
|
FPrivateKeyLabel := 'synapse';
|
|
FDelCert := false;
|
|
end;
|
|
|
|
destructor TSSLCryptLib.Destroy;
|
|
begin
|
|
DeInit;
|
|
inherited Destroy;
|
|
end;
|
|
|
|
procedure TSSLCryptLib.Assign(const Value: TCustomSSL);
|
|
begin
|
|
inherited Assign(Value);
|
|
if Value is TSSLCryptLib then
|
|
begin
|
|
FPrivateKeyLabel := TSSLCryptLib(Value).privatekeyLabel;
|
|
end;
|
|
end;
|
|
|
|
function TSSLCryptLib.GetString(const cryptHandle: CRYPT_HANDLE; const attributeType: CRYPT_ATTRIBUTE_TYPE): string;
|
|
var
|
|
l: integer;
|
|
begin
|
|
l := 0;
|
|
cryptGetAttributeString(cryptHandle, attributeType, nil, l);
|
|
setlength(Result, l);
|
|
cryptGetAttributeString(cryptHandle, attributeType, pointer(Result), l);
|
|
setlength(Result, l);
|
|
end;
|
|
|
|
function TSSLCryptLib.LibVersion: String;
|
|
var
|
|
x: integer;
|
|
begin
|
|
Result := GetString(CRYPT_UNUSED, CRYPT_OPTION_INFO_DESCRIPTION);
|
|
cryptGetAttribute(CRYPT_UNUSED, CRYPT_OPTION_INFO_MAJORVERSION, x);
|
|
Result := Result + ' v' + IntToStr(x);
|
|
cryptGetAttribute(CRYPT_UNUSED, CRYPT_OPTION_INFO_MINORVERSION, x);
|
|
Result := Result + '.' + IntToStr(x);
|
|
cryptGetAttribute(CRYPT_UNUSED, CRYPT_OPTION_INFO_STEPPING, x);
|
|
Result := Result + '.' + IntToStr(x);
|
|
end;
|
|
|
|
function TSSLCryptLib.LibName: String;
|
|
begin
|
|
Result := 'ssl_cryptlib';
|
|
end;
|
|
|
|
function TSSLCryptLib.SSLCheck(Value: integer): Boolean;
|
|
begin
|
|
Result := true;
|
|
FLastErrorDesc := '';
|
|
if Value = CRYPT_ERROR_COMPLETE then
|
|
Value := 0;
|
|
FLastError := Value;
|
|
if FLastError <> 0 then
|
|
begin
|
|
Result := False;
|
|
FLastErrorDesc := GetString(FCryptSession, CRYPT_ATTRIBUTE_INT_ERRORMESSAGE);
|
|
end;
|
|
end;
|
|
|
|
function TSSLCryptLib.CreateSelfSignedCert(Host: string): Boolean;
|
|
var
|
|
privateKey: CRYPT_CONTEXT;
|
|
keyset: CRYPT_KEYSET;
|
|
cert: CRYPT_CERTIFICATE;
|
|
publicKey: CRYPT_CONTEXT;
|
|
begin
|
|
Result := False;
|
|
if FPrivatekeyFile = '' then
|
|
FPrivatekeyFile := GetTempFile('', 'key');
|
|
cryptCreateContext(privateKey, CRYPT_UNUSED, CRYPT_ALGO_RSA);
|
|
cryptSetAttributeString(privateKey, CRYPT_CTXINFO_LABEL, Pointer(FPrivatekeyLabel),
|
|
Length(FPrivatekeyLabel));
|
|
cryptSetAttribute(privateKey, CRYPT_CTXINFO_KEYSIZE, 1024);
|
|
cryptGenerateKey(privateKey);
|
|
cryptKeysetOpen(keyset, CRYPT_UNUSED, CRYPT_KEYSET_FILE, PChar(FPrivatekeyFile), CRYPT_KEYOPT_CREATE);
|
|
FDelCert := True;
|
|
cryptAddPrivateKey(keyset, privateKey, PChar(FKeyPassword));
|
|
cryptCreateCert(cert, CRYPT_UNUSED, CRYPT_CERTTYPE_CERTIFICATE);
|
|
cryptSetAttribute(cert, CRYPT_CERTINFO_XYZZY, 1);
|
|
cryptGetPublicKey(keyset, publicKey, CRYPT_KEYID_NAME, PChar(FPrivatekeyLabel));
|
|
cryptSetAttribute(cert, CRYPT_CERTINFO_SUBJECTPUBLICKEYINFO, publicKey);
|
|
cryptSetAttributeString(cert, CRYPT_CERTINFO_COMMONNAME, Pointer(host), Length(host));
|
|
cryptSignCert(cert, privateKey);
|
|
cryptAddPublicKey(keyset, cert);
|
|
cryptKeysetClose(keyset);
|
|
cryptDestroyCert(cert);
|
|
cryptDestroyContext(privateKey);
|
|
cryptDestroyContext(publicKey);
|
|
Result := True;
|
|
end;
|
|
|
|
function TSSLCryptLib.PopAll: string;
|
|
const
|
|
BufferMaxSize = 32768;
|
|
var
|
|
Outbuffer: string;
|
|
WriteLen: integer;
|
|
begin
|
|
Result := '';
|
|
repeat
|
|
setlength(outbuffer, BufferMaxSize);
|
|
Writelen := 0;
|
|
SSLCheck(CryptPopData(FCryptSession, @OutBuffer[1], BufferMaxSize, Writelen));
|
|
if FLastError <> 0 then
|
|
Break;
|
|
if WriteLen > 0 then
|
|
begin
|
|
setlength(outbuffer, WriteLen);
|
|
Result := Result + outbuffer;
|
|
end;
|
|
until WriteLen = 0;
|
|
end;
|
|
|
|
function TSSLCryptLib.Init(server:Boolean): Boolean;
|
|
var
|
|
st: CRYPT_SESSION_TYPE;
|
|
keysetobj: CRYPT_KEYSET;
|
|
cryptContext: CRYPT_CONTEXT;
|
|
x: integer;
|
|
begin
|
|
Result := False;
|
|
FLastErrorDesc := '';
|
|
FLastError := 0;
|
|
FDelCert := false;
|
|
FcryptSession := CRYPT_SESSION(CRYPT_SESSION_NONE);
|
|
if server then
|
|
case FSSLType of
|
|
LT_all, LT_SSLv3, LT_TLSv1, LT_TLSv1_1:
|
|
st := CRYPT_SESSION_SSL_SERVER;
|
|
LT_SSHv2:
|
|
st := CRYPT_SESSION_SSH_SERVER;
|
|
else
|
|
Exit;
|
|
end
|
|
else
|
|
case FSSLType of
|
|
LT_all, LT_SSLv3, LT_TLSv1, LT_TLSv1_1:
|
|
st := CRYPT_SESSION_SSL;
|
|
LT_SSHv2:
|
|
st := CRYPT_SESSION_SSH;
|
|
else
|
|
Exit;
|
|
end;
|
|
if not SSLCheck(cryptCreateSession(FcryptSession, CRYPT_UNUSED, st)) then
|
|
Exit;
|
|
x := -1;
|
|
case FSSLType of
|
|
LT_SSLv3:
|
|
x := 0;
|
|
LT_TLSv1:
|
|
x := 1;
|
|
LT_TLSv1_1:
|
|
x := 2;
|
|
end;
|
|
if x >= 0 then
|
|
if not SSLCheck(cryptSetAttribute(FCryptSession, CRYPT_SESSINFO_VERSION, x)) then
|
|
Exit;
|
|
if FUsername <> '' then
|
|
begin
|
|
cryptSetAttributeString(FcryptSession, CRYPT_SESSINFO_USERNAME,
|
|
Pointer(FUsername), Length(FUsername));
|
|
cryptSetAttributeString(FcryptSession, CRYPT_SESSINFO_PASSWORD,
|
|
Pointer(FPassword), Length(FPassword));
|
|
end;
|
|
if FSSLType = LT_SSHv2 then
|
|
if FSSHChannelType <> '' then
|
|
begin
|
|
cryptSetAttribute(FCryptSession, CRYPT_SESSINFO_SSH_CHANNEL, CRYPT_UNUSED);
|
|
cryptSetAttributeString(FCryptSession, CRYPT_SESSINFO_SSH_CHANNEL_TYPE,
|
|
Pointer(FSSHChannelType), Length(FSSHChannelType));
|
|
if FSSHChannelArg1 <> '' then
|
|
cryptSetAttributeString(FCryptSession, CRYPT_SESSINFO_SSH_CHANNEL_ARG1,
|
|
Pointer(FSSHChannelArg1), Length(FSSHChannelArg1));
|
|
if FSSHChannelArg2 <> '' then
|
|
cryptSetAttributeString(FCryptSession, CRYPT_SESSINFO_SSH_CHANNEL_ARG2,
|
|
Pointer(FSSHChannelArg2), Length(FSSHChannelArg2));
|
|
end;
|
|
|
|
|
|
if server and (FPrivatekeyFile = '') then
|
|
begin
|
|
if FPrivatekeyLabel = '' then
|
|
FPrivatekeyLabel := 'synapse';
|
|
if FkeyPassword = '' then
|
|
FkeyPassword := 'synapse';
|
|
CreateSelfSignedcert(FSocket.ResolveIPToName(FSocket.GetRemoteSinIP));
|
|
end;
|
|
|
|
if (FPrivatekeyLabel <> '') and (FPrivatekeyFile <> '') then
|
|
begin
|
|
if not SSLCheck(cryptKeysetOpen(KeySetObj, CRYPT_UNUSED, CRYPT_KEYSET_FILE,
|
|
PChar(FPrivatekeyFile), CRYPT_KEYOPT_READONLY)) then
|
|
Exit;
|
|
try
|
|
if not SSLCheck(cryptGetPrivateKey(KeySetObj, cryptcontext, CRYPT_KEYID_NAME,
|
|
PChar(FPrivatekeyLabel), PChar(FKeyPassword))) then
|
|
Exit;
|
|
if not SSLCheck(cryptSetAttribute(FcryptSession, CRYPT_SESSINFO_PRIVATEKEY,
|
|
cryptcontext)) then
|
|
Exit;
|
|
finally
|
|
cryptKeysetClose(keySetObj);
|
|
cryptDestroyContext(cryptcontext);
|
|
end;
|
|
end;
|
|
if server and FVerifyCert then
|
|
begin
|
|
if not SSLCheck(cryptKeysetOpen(KeySetObj, CRYPT_UNUSED, CRYPT_KEYSET_FILE,
|
|
PChar(FCertCAFile), CRYPT_KEYOPT_READONLY)) then
|
|
Exit;
|
|
try
|
|
if not SSLCheck(cryptSetAttribute(FcryptSession, CRYPT_SESSINFO_KEYSET,
|
|
keySetObj)) then
|
|
Exit;
|
|
finally
|
|
cryptKeysetClose(keySetObj);
|
|
end;
|
|
end;
|
|
Result := true;
|
|
end;
|
|
|
|
function TSSLCryptLib.DeInit: Boolean;
|
|
begin
|
|
Result := True;
|
|
if FcryptSession <> CRYPT_SESSION(CRYPT_SESSION_NONE) then
|
|
CryptDestroySession(FcryptSession);
|
|
FcryptSession := CRYPT_SESSION(CRYPT_SESSION_NONE);
|
|
FSSLEnabled := False;
|
|
if FDelCert then
|
|
Deletefile(FPrivatekeyFile);
|
|
end;
|
|
|
|
function TSSLCryptLib.Prepare(server:Boolean): Boolean;
|
|
begin
|
|
Result := false;
|
|
DeInit;
|
|
if Init(server) then
|
|
Result := true
|
|
else
|
|
DeInit;
|
|
end;
|
|
|
|
function TSSLCryptLib.Connect: boolean;
|
|
begin
|
|
Result := False;
|
|
if FSocket.Socket = INVALID_SOCKET then
|
|
Exit;
|
|
if Prepare(false) then
|
|
begin
|
|
if not SSLCheck(cryptSetAttribute(FCryptSession, CRYPT_SESSINFO_NETWORKSOCKET, FSocket.Socket)) then
|
|
Exit;
|
|
if not SSLCheck(cryptSetAttribute(FCryptSession, CRYPT_SESSINFO_ACTIVE, 1)) then
|
|
Exit;
|
|
FSSLEnabled := True;
|
|
Result := True;
|
|
FReadBuffer := '';
|
|
end;
|
|
end;
|
|
|
|
function TSSLCryptLib.Accept: boolean;
|
|
begin
|
|
Result := False;
|
|
if FSocket.Socket = INVALID_SOCKET then
|
|
Exit;
|
|
if Prepare(true) then
|
|
begin
|
|
if not SSLCheck(cryptSetAttribute(FCryptSession, CRYPT_SESSINFO_NETWORKSOCKET, FSocket.Socket)) then
|
|
Exit;
|
|
if not SSLCheck(cryptSetAttribute(FCryptSession, CRYPT_SESSINFO_ACTIVE, 1)) then
|
|
Exit;
|
|
FSSLEnabled := True;
|
|
Result := True;
|
|
FReadBuffer := '';
|
|
end;
|
|
end;
|
|
|
|
function TSSLCryptLib.Shutdown: boolean;
|
|
begin
|
|
Result := BiShutdown;
|
|
end;
|
|
|
|
function TSSLCryptLib.BiShutdown: boolean;
|
|
begin
|
|
if FcryptSession <> CRYPT_SESSION(CRYPT_SESSION_NONE) then
|
|
cryptSetAttribute(FCryptSession, CRYPT_SESSINFO_ACTIVE, 0);
|
|
DeInit;
|
|
FReadBuffer := '';
|
|
Result := True;
|
|
end;
|
|
|
|
function TSSLCryptLib.SendBuffer(Buffer: TMemory; Len: Integer): Integer;
|
|
var
|
|
l: integer;
|
|
begin
|
|
FLastError := 0;
|
|
FLastErrorDesc := '';
|
|
SSLCheck(cryptPushData(FCryptSession, Buffer, Len, L));
|
|
cryptFlushData(FcryptSession);
|
|
Result := l;
|
|
end;
|
|
|
|
function TSSLCryptLib.RecvBuffer(Buffer: TMemory; Len: Integer): Integer;
|
|
var
|
|
l: integer;
|
|
begin
|
|
FLastError := 0;
|
|
FLastErrorDesc := '';
|
|
if Length(FReadBuffer) = 0 then
|
|
FReadBuffer := PopAll;
|
|
if Len > Length(FReadBuffer) then
|
|
Len := Length(FReadBuffer);
|
|
Move(Pointer(FReadBuffer)^, buffer^, Len);
|
|
Delete(FReadBuffer, 1, Len);
|
|
Result := Len;
|
|
end;
|
|
|
|
function TSSLCryptLib.WaitingData: Integer;
|
|
begin
|
|
Result := Length(FReadBuffer);
|
|
end;
|
|
|
|
function TSSLCryptLib.GetSSLVersion: string;
|
|
var
|
|
x: integer;
|
|
begin
|
|
Result := '';
|
|
if FcryptSession = CRYPT_SESSION(CRYPT_SESSION_NONE) then
|
|
Exit;
|
|
cryptGetAttribute(FCryptSession, CRYPT_SESSINFO_VERSION, x);
|
|
if FSSLType in [LT_SSLv3, LT_TLSv1, LT_TLSv1_1, LT_all] then
|
|
case x of
|
|
0:
|
|
Result := 'SSLv3';
|
|
1:
|
|
Result := 'TLSv1';
|
|
2:
|
|
Result := 'TLSv1.1';
|
|
end;
|
|
if FSSLType in [LT_SSHv2] then
|
|
case x of
|
|
0:
|
|
Result := 'SSHv1';
|
|
1:
|
|
Result := 'SSHv2';
|
|
end;
|
|
end;
|
|
|
|
function TSSLCryptLib.GetPeerSubject: string;
|
|
var
|
|
cert: CRYPT_CERTIFICATE;
|
|
begin
|
|
Result := '';
|
|
if FcryptSession = CRYPT_SESSION(CRYPT_SESSION_NONE) then
|
|
Exit;
|
|
cryptGetAttribute(FCryptSession, CRYPT_SESSINFO_RESPONSE, cert);
|
|
cryptSetAttribute(cert, CRYPT_CERTINFO_SUBJECTNAME, CRYPT_UNUSED);
|
|
Result := GetString(cert, CRYPT_CERTINFO_DN);
|
|
cryptDestroyCert(cert);
|
|
end;
|
|
|
|
function TSSLCryptLib.GetPeerName: string;
|
|
var
|
|
cert: CRYPT_CERTIFICATE;
|
|
begin
|
|
Result := '';
|
|
if FcryptSession = CRYPT_SESSION(CRYPT_SESSION_NONE) then
|
|
Exit;
|
|
cryptGetAttribute(FCryptSession, CRYPT_SESSINFO_RESPONSE, cert);
|
|
cryptSetAttribute(cert, CRYPT_CERTINFO_ISSUERNAME, CRYPT_UNUSED);
|
|
Result := GetString(cert, CRYPT_CERTINFO_COMMONNAME);
|
|
cryptDestroyCert(cert);
|
|
end;
|
|
|
|
function TSSLCryptLib.GetPeerIssuer: string;
|
|
var
|
|
cert: CRYPT_CERTIFICATE;
|
|
begin
|
|
Result := '';
|
|
if FcryptSession = CRYPT_SESSION(CRYPT_SESSION_NONE) then
|
|
Exit;
|
|
cryptGetAttribute(FCryptSession, CRYPT_SESSINFO_RESPONSE, cert);
|
|
cryptSetAttribute(cert, CRYPT_CERTINFO_ISSUERNAME, CRYPT_UNUSED);
|
|
Result := GetString(cert, CRYPT_CERTINFO_DN);
|
|
cryptDestroyCert(cert);
|
|
end;
|
|
|
|
function TSSLCryptLib.GetPeerFingerprint: string;
|
|
var
|
|
cert: CRYPT_CERTIFICATE;
|
|
begin
|
|
Result := '';
|
|
if FcryptSession = CRYPT_SESSION(CRYPT_SESSION_NONE) then
|
|
Exit;
|
|
cryptGetAttribute(FCryptSession, CRYPT_SESSINFO_RESPONSE, cert);
|
|
Result := GetString(cert, CRYPT_CERTINFO_FINGERPRINT);
|
|
Result := MD5(Result);
|
|
cryptDestroyCert(cert);
|
|
end;
|
|
|
|
{==============================================================================}
|
|
|
|
initialization
|
|
if cryptInit = CRYPT_OK then
|
|
SSLImplementation := TSSLCryptLib;
|
|
cryptAddRandom(nil, CRYPT_RANDOM_SLOWPOLL);
|
|
|
|
finalization
|
|
cryptEnd;
|
|
|
|
end.
|
|
|