From 55c1e2964da0a022393ebcc8a6498bf0b90c90a3 Mon Sep 17 00:00:00 2001
From: leslie <unknown>
Date: Wed, 20 Aug 2008 20:22:17 +0800
Subject: [PATCH] irdeto: support for I2 key formats
---
examples/SoftCam.Key | 16 ++++++-
systems/irdeto/irdeto.c | 100 ++++++++++++++++++++++++++++++++++++++-
systems/irdeto/irdeto.h | 10 ++++
systems/irdeto/irdeto1.c | 4 +-
4 files changed, 125 insertions(+), 5 deletions(-)
diff --git a/examples/SoftCam.Key b/examples/SoftCam.Key
index 7038809..84d208a 100644
--- a/examples/SoftCam.Key
+++ b/examples/SoftCam.Key
@@ -1,11 +1,23 @@
;
; Irdeto/Betacrypt
;
-; I XX YY <16 characters>
+; I XX ZZ <16 characters>
;
; XX - provider
-; YY - key number
+; ZZ - key number
+;
+; Irdeto 2
+;
+; I XXXX YY ZZ <32 characters> ; opkey
+; I XXXX YY IV <32 characters> ; IV (M2)
+; I XXXX YY ECM <32 characters> ; ECM seed (M1)
+; I XXXX YY EMM <32 characters> ; EMM seed (M0)
+; I XXXX YY MK0 <32 characters> ; first PMK (M3)
+; I XXXX YY MK1 <32 characters> ; second PMK (M4)
;
+; XXXX - caid
+; YY - provider
+; ZZ - opkey number
;
; Seca
diff --git a/systems/irdeto/irdeto.c b/systems/irdeto/irdeto.c
index 855b4cf..e72d501 100644
--- a/systems/irdeto/irdeto.c
+++ b/systems/irdeto/irdeto.c
@@ -19,6 +19,7 @@
#include <stdlib.h>
#include <string.h>
+#include <ctype.h>
#include "system-common.h"
@@ -33,4 +34,101 @@ static const struct LogModule lm_sys = {
};
ADD_MODULE(L_SYS,lm_sys)
-static cPlainKeyTypeReg<cPlainKeyStd,'I',false> KeyReg;
+// -- cPlainKeyIrd -------------------------------------------------------------
+
+#define I1_KEYLEN 8
+#define I2_KEYLEN 16
+
+class cPlainKeyIrd : public cHexKey {
+private:
+ bool IsI2Key(void);
+protected:
+ virtual int IdSize(void);
+ virtual cString PrintKeyNr(void);
+public:
+ cPlainKeyIrd(bool Super);
+ virtual bool Parse(const char *line);
+ virtual bool SetKey(void *Key, int Keylen);
+ virtual bool SetBinKey(unsigned char *Mem, int Keylen);
+ };
+
+static cPlainKeyTypeReg<cPlainKeyIrd,'I'> KeyReg;
+
+cPlainKeyIrd::cPlainKeyIrd(bool Super)
+:cHexKey(Super)
+{}
+
+bool cPlainKeyIrd::SetKey(void *Key, int Keylen)
+{
+ if(!IsI2Key()) SetSupersede(false);
+ return cHexKey::SetKey(Key,Keylen);
+}
+
+bool cPlainKeyIrd::SetBinKey(unsigned char *Mem, int Keylen)
+{
+ if(!IsI2Key()) SetSupersede(false);
+ return cHexKey::SetBinKey(Mem,Keylen);
+}
+
+int cPlainKeyIrd::IdSize(void)
+{
+ return IsI2Key() ? 4 : 2;
+}
+
+bool cPlainKeyIrd::IsI2Key(void)
+{
+ return TYPE(keynr)!=TYPE_I1;
+}
+
+bool cPlainKeyIrd::Parse(const char *line)
+{
+ unsigned char sid[2], skey[I2_KEYLEN];
+ int klen;
+ if(GetChar(line,&type,1) && (klen=GetHex(line,sid,2,false))) {
+ type=toupper(type); id=Bin2Int(sid,klen);
+ line=skipspace(line);
+ bool ok=false;
+ if(klen==2) {
+ klen=I2_KEYLEN;
+ unsigned char prov;
+ if(GetHex(line,&prov,1)) {
+ line=skipspace(line);
+ int typ, id;
+ if(!strncasecmp(line,"IV",2)) { typ=TYPE_IV; id=0; line+=2; ok=true; }
+ else if(!strncasecmp(line,"ECM",3)) { typ=TYPE_SEED; id=0; line+=3; ok=true; }
+ else if(!strncasecmp(line,"EMM",3)) { typ=TYPE_SEED; id=1; line+=3; ok=true; }
+ else if(!strncasecmp(line,"MK",2)) { typ=TYPE_PMK; id=line[2]-'0'; line+=3; ok=true; }
+ else { typ=TYPE_OP; ok=GetHex(line,sid,1); id=sid[0]; }
+ keynr=KEYSET(prov,typ,id);
+ }
+ }
+ else {
+ klen=I1_KEYLEN;
+ ok=GetHex(line,sid,1);
+ keynr=KEYSET(0,TYPE_I1,sid[0]);
+ }
+ line=skipspace(line);
+ if(ok && GetHex(line,skey,klen)) {
+ SetBinKey(skey,klen);
+ return true;
+ }
+ }
+ return false;
+}
+
+cString cPlainKeyIrd::PrintKeyNr(void)
+{
+ char tmp[16];
+ if(IsI2Key()) {
+ snprintf(tmp,sizeof(tmp),"%02X ",PROV(keynr));
+ switch(TYPE(keynr)) {
+ case TYPE_OP: snprintf(tmp+3,sizeof(tmp)-3,"%02X",ID(keynr)); break;
+ case TYPE_IV: snprintf(tmp+3,sizeof(tmp)-3,"IV"); break;
+ case TYPE_SEED: snprintf(tmp+3,sizeof(tmp)-3,"%s",ID(keynr)?"EMM":"ECM"); break;
+ case TYPE_PMK: snprintf(tmp+3,sizeof(tmp)-3,"MK%d",ID(keynr)); break;
+ }
+ }
+ else
+ snprintf(tmp,sizeof(tmp),"%02X",ID(keynr));
+ return tmp;
+}
diff --git a/systems/irdeto/irdeto.h b/systems/irdeto/irdeto.h
index af46efa..6c5709e 100644
--- a/systems/irdeto/irdeto.h
+++ b/systems/irdeto/irdeto.h
@@ -26,5 +26,15 @@
#define SYSTEM_NAME "Irdeto"
#define SYSTEM_PRI -10
+#define TYPE_I1 0
+#define TYPE_OP 1
+#define TYPE_IV 2
+#define TYPE_SEED 3
+#define TYPE_PMK 4
+
+#define PROV(keynr) (((keynr)>>16)&0xFF)
+#define TYPE(keynr) (((keynr)>> 8)&0xFF)
+#define ID(keynr) (((keynr) )&0xFF)
+#define KEYSET(prov,typ,id) ((((prov)&0xFF)<<16)|(((typ)&0xFF)<<8)|((id)&0xFF))
#endif
diff --git a/systems/irdeto/irdeto1.c b/systems/irdeto/irdeto1.c
index 5e5d97b..c829316 100644
--- a/systems/irdeto/irdeto1.c
+++ b/systems/irdeto/irdeto1.c
@@ -260,10 +260,10 @@ bool cSystemIrd::ProcessECM(const cEcmInfo *ecm, unsigned char *source)
return false;
}
- cKeySnoop ks(this,'I',source[2],keynr);
+ cKeySnoop ks(this,'I',source[2],KEYSET(0,TYPE_I1,keynr));
cPlainKey *pk=0;
unsigned char key[8];
- while((pk=keys.FindKey('I',source[2],keynr,sizeof(key),pk))) {
+ while((pk=keys.FindKey('I',source[2],KEYSET(0,TYPE_I1,keynr),sizeof(key),pk))) {
unsigned char save[16];
memcpy(save,data,16); // save the encrypted data
pk->Get(key);
--
2.39.5