DSDPlus Unknown algo type 0A

[gary123]

I was sent this capture on a P25P2 system

026/04/27 16:31:39 Freq=867.925000 NAC=CD0 Group call; TG=2 [ALGID 0A KID 1000 Radio Testing] RID=3 Ch=866.4875 3s
2026/04/27 16:34:02 Freq=867.925000 NAC=CD0 Group call; TG=2 [ALGID 0A KID 1000 Radio Testing] RID=3 Ch=866.4875 5s
2026/04/27 16:34:09 Freq=867.925000 NAC=CD0 Group call; TG=2 [ALGID 0A KID 1000 Radio Testing] RID=3 Ch=866.1875 18s

Anyone know what Algo this is? The system is also using AES(ALGID 25).

The signal is super strong and this is not a false decode.

 

[N4KVL]

ADP

 

[ki4hyf]

It looks to me like an unencrypted group call with an alias of "[ALGID 0A KID 1000 Radio Testing]".

 

[gary123]

ADP

ki4hyf hit it on the head. Its not a capture of a ALGID or KID. It is user entered description information. When I requested the full set of DSD files. I saw this in the groups.

P25, BEE00.CD8, 2, 50, Normal, 28, 2026/02/11 16:38, "ALGID 0A KID 1000 Radio Testing"

I guess never believe everything you read. Thanks everyone for clearing up this mystery.

 

[wgbecks]

ADP

ADP is 0xAA [0xAA Motorola ADP (40 bit RC4)]

 

[gary123]

Anyone ever see a P25P2 DES transmission? it would be nice to nail down the algid for that. I have never seen DVI or GSM on the air.

 

[wgbecks]

Anyone ever see a P25P2 DES transmission? it would be nice to nail down the algid for that. I have never seen DVI or GSM on the air.

DMR ALGIDs
0x01 Anytone RC4
0x21 Motorola EP/RC4
0x22 DES
0x24 AES-128
0x25 AES-156

P25 ALGIDs
0x00 ACCORDION 1.3
0x01 BATON (Auto Even)
0x02 FIREFLY Type 1
0x03 MAYFLY Type 1
0x04 SAVILLE
0x05 Motorola Assigned - PADSTONE
0x41 BATON (Auto Odd)
0x80 Unencrypted
0x81 DES-OFB 56 bit key
0x83 3 key Triple DES 168 bit key
0x84 AES-256-OFB
0x85 AES-128-ECB
0x88 AES-CBC
0x89 AES-128-OFB
0x9F Motorola DES-XL 56-bit key
0xA0 Motorola DVI-XL
0xA1 Motorola DVP-XL
0xA2 Motorola DVI-SPFL
0xA2 Motorola DVI-XL-SPFL
0xA3 Motorola HAYSTACK
0xA4 Motorola Assigned - Unknown
0xA5 Motorola Assigned - Unknown
0xA6 Motorola Assigned - Unknown
0xA7 Motorola Assigned - Unknown
0xA8 Motorola Assigned - Unknown
0xA9 Motorola Assigned - Unknown
0xAA Motorola ADP (40 bit RC4)
0xAB Motorola CFX-256
0xAC Motorola GOST 28147-89 (RFC 5830)
0xAD Motorola Assigned - Unknown
0xAD Motorola Assigned - LOCALIZED
0xAE Motorola Assigned - Unknown
0xAF Motorola AES+
0xB0 Motorola DVP
0xD0 Motorola LOCAL_BR

 

[ki4hyf]

Anyone ever see a P25P2 DES transmission? it would be nice to nail down the algid for that. I have never seen DVI or GSM on the air.

Taken from a P25 P2 system. KID changed to protect the innocent (me). This was captured by FME. I don't think I have any DSD+ logs of DES56-OFB.
ALG_ID: 0x81(DES-OFB) KEY_ID: 0xABCD MI: FC6ABA83D0CD586F MPTT