i can't decrypt DRM with correct keys but working in player

5th Jul 2022 10:36 #1

Member

Hi, i can't decrypt this segment using mp4decrypt v 1.4

init

Code:

https://www.mediafire.com/file/41nm3xqujg23ory/0_1_3519_init.mp4/file

segment

Code:

https://www.mediafire.com/file/fx3898fehpd7cn1/0_1_3519_149131310175180.mp4/file

pssh

Code:

AAAAiHBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAGgIARIQWA0ccDTY6BgjdP53xHdJoBIQH7rsOV0BM3TmyyBxB90bChIQx49W2DcwfMI0bsq178WDyBIQTPw+QqeiYd3hKULfDtNe5BIQEqP6hNUWi6TrJMz14RSXARoAKgAyADgASABQAA==

default_KID

Code:

1fbaec39-5d01-3374-e6cb-207107dd1b0a

keys :

Code:

c78f56d837307cc2346ecab5efc583c8:3dfb1b1034144807b6b775a622d29b76
1fbaec395d013374e6cb207107dd1b0a:61c1807549aff34b6801be80b9e4a8e7
4cfc3e42a7a261dde12942df0ed35ee4:b89bdcca39a692caa428bc6b61064be0
12a3fa84d5168ba4eb24ccf5e1149701:a3bfe99d044aeee5f530283d7b3445f8
580d1c7034d8e8182374fe77c47749a0:9112a58d7937fd336285c91135604f27

concat init + segment using bash:

Code:

cat 0_1_3519_init.mp4 0_1_3519_149131310175180.mp4 > segment.mp4

decrypt it :

Code:

 ./mp4decrypt --key 1fbaec395d013374e6cb207107dd1b0a:61c1807549aff34b6801be80b9e4a8e7 --show-progress segment  output.mp4

the stream still scrambled

but when i use player ex: https://bitmovin.com/demos/stream-test , the stram work !!!

mp4dump init :

Code:

[ftyp] size=8+32
  major_brand = mp41
  minor_version = 0
  compatible_brand = iso8
  compatible_brand = isom
  compatible_brand = mp41
  compatible_brand = dash
  compatible_brand = hvc1
  compatible_brand = cmfc
[moov] size=8+829
  [mvhd] size=12+96
    timescale = 90000
    duration = 0
    duration(ms) = 0
  [trak] size=8+673
    [tkhd] size=12+80, flags=7
      enabled = 1
      id = 1
      duration = 0
      width = 1920.000000
      height = 1080.000000
    [mdia] size=8+537
      [mdhd] size=12+20
        timescale = 90000
        duration = 0
        duration(ms) = 0
        language = und
      [hdlr] size=12+33
        handler_type = vide
        handler_name = VideoHandler
      [minf] size=8+452
        [dinf] size=8+28
          [dref] size=12+16
            [url ] size=12+0, flags=1
              location = [local to file]
        [stbl] size=8+388
          [stsd] size=12+308
            entry_count = 1
            [encv] size=8+296
              data_reference_index = 1
              width = 1920
              height = 1080
              compressor = HEVC Coding
              [hvcC] size=8+130
                Configuration Version = 1
                Profile Space = 0
                Profile = Main
                Tier = 0
                Profile Compatibility = 40000000
                Constraint = 0
                Level = 123
                Min Spatial Segmentation = 0
                Parallelism Type = 0
                Chroma Format = 1
                Chroma Depth = 8
                Luma Depth = 8
                Average Frame Rate = 0
                Constant Frame Rate = 0
                Number Of Temporal Layers = 0
                Temporal Id Nested = 0
                NALU Length Size = 4
              [sinf] size=8+72
                [frma] size=8+4
                  original_format = hvc1
                [schm] size=12+8
                  scheme_type = cenc
                  scheme_version = 65536
                [schi] size=8+32
                  [tenc] size=12+20
                    default_isProtected = 1
                    default_Per_Sample_IV_Size = 8
                    default_KID = [00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00]
          [stts] size=12+4
            entry_count = 0
          [stsc] size=12+4
            entry_count = 0
          [stsz] size=12+8
            sample_size = 0
            sample_count = 0
          [stco] size=12+4
            entry_count = 0
        [vmhd] size=12+8, flags=1
          graphics_mode = 0
          op_color = 0000,0000,0000
    [edts] size=8+28
      [elst] size=12+16
        entry_count = 1
        entry/segment duration = 0
        entry/media time = 3600
        entry/media rate = 1
  [mvex] size=8+32
    [trex] size=12+20
      track id = 1
      default sample description index = 1
      default sample duration = 0
      default sample size = 0
      default sample flags = 0

mp4dump show kid 0000000000000

any ideas !!!!

thanks

Quote

5th Jul 2022 11:26 #2

LZAA

Member

Url?

Quote

5th Jul 2022 11:51 #3

dr.mohamed

Member

Originally Posted by LZAA

Url?

i uploaded the init and 1 segment
the mpd url is not public

Code:

<?xml version="1.0" encoding="UTF-8"?>
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="dynamic" publishTime="2022-07-05T13:49:27Z" availabilityStartTime="1970-01-01T00:00:00Z" minimumUpdatePeriod="PT2S" minBufferTime="PT6.4S" timeShiftBufferDepth="PT14400S" suggestedPresentationDelay="PT9.6S">
	<UTCTiming schemeIdUri="urn:mpeg:dash:utc:http-iso:2014" value="https://time.akamai.com/?iso" />
	<Period id="0" start="PT0S">
		<AdaptationSet id="0" group="1" segmentAlignment="true" startWithSAP="1" contentType="video">
			<ContentProtection schemeIdUri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"><cenc:pssh>AAAAiHBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAGgIARIQH7rsOV0BM3TmyyBxB90bChIQx49W2DcwfMI0bsq178WDyBIQTPw+QqeiYd3hKULfDtNe5BIQEqP6hNUWi6TrJMz14RSXARIQWA0ccDTY6BgjdP53xHdJoBoAKgAyADgASABQAA==</cenc:pssh></ContentProtection>
			<ContentProtection schemeIdUri="urn:mpeg:dash:mp4protection:2011" value="cenc" cenc:default_KID="4cfc3e42-a7a2-61dd-e129-42df0ed35ee4"/>
			<SupplementalProperty schemeIdUri="urn:mpeg:dash:adaptation-set-switching:2016" value="1,2,3"/>
			
			<Representation id="379" bandwidth="400000" codecs="avc1.64000d" mimeType="video/mp4" width="384" height="216" frameRate="25">
				<SegmentTemplate timescale="90000" initialization="0_1_379_init" media="0_1_379_$Time$">
					<SegmentTimeline>
						<S t="149131309959180" d="288000" r="4503"/>
					</SegmentTimeline>
				</SegmentTemplate>
			</Representation><Representation id="380" bandwidth="800000" codecs="avc1.64001e" mimeType="video/mp4" width="640" height="360" frameRate="25">
				<SegmentTemplate timescale="90000" initialization="0_1_380_init" media="0_1_380_$Time$">
					<SegmentTimeline>
						<S t="149131309959180" d="288000" r="4503"/>
					</SegmentTimeline>
				</SegmentTemplate>
			</Representation><Representation id="381" bandwidth="1600000" codecs="avc1.64001f" mimeType="video/mp4" width="896" height="504" frameRate="25">
				<SegmentTemplate timescale="90000" initialization="0_1_381_init" media="0_1_381_$Time$">
					<SegmentTimeline>
						<S t="149131309959180" d="288000" r="4503"/>
					</SegmentTimeline>
				</SegmentTemplate>
			</Representation><Representation id="3517" bandwidth="1600000" codecs="hvc1.1.2.L93" mimeType="video/mp4" width="896" height="504" frameRate="50">
				<SegmentTemplate timescale="90000" initialization="0_1_3517_init" media="0_1_3517_$Time$">
					<SegmentTimeline>
						<S t="149131310175180" d="288000" r="4502"/>
					</SegmentTimeline>
				</SegmentTemplate>
			</Representation>
		</AdaptationSet>
		<AdaptationSet id="1" group="1" segmentAlignment="true" startWithSAP="1" contentType="video">
			<ContentProtection schemeIdUri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"><cenc:pssh>AAAAiHBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAGgIARIQH7rsOV0BM3TmyyBxB90bChIQx49W2DcwfMI0bsq178WDyBIQTPw+QqeiYd3hKULfDtNe5BIQEqP6hNUWi6TrJMz14RSXARIQWA0ccDTY6BgjdP53xHdJoBoAKgAyADgASABQAA==</cenc:pssh></ContentProtection>
			<ContentProtection schemeIdUri="urn:mpeg:dash:mp4protection:2011" value="cenc" cenc:default_KID="12a3fa84-d516-8ba4-eb24-ccf5e1149701"/>
			<SupplementalProperty schemeIdUri="urn:mpeg:dash:adaptation-set-switching:2016" value="0,2,3"/>
			
			<Representation id="382" bandwidth="3000000" codecs="avc1.64001f" mimeType="video/mp4" width="1280" height="720" frameRate="25">
				<SegmentTemplate timescale="90000" initialization="0_1_382_init" media="0_1_382_$Time$">
					<SegmentTimeline>
						<S t="149131309959180" d="288000" r="4503"/>
					</SegmentTimeline>
				</SegmentTemplate>
			</Representation>
		</AdaptationSet>
		<AdaptationSet id="2" group="1" segmentAlignment="true" startWithSAP="1" contentType="video">
			<ContentProtection schemeIdUri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"><cenc:pssh>AAAAiHBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAGgIARIQH7rsOV0BM3TmyyBxB90bChIQx49W2DcwfMI0bsq178WDyBIQTPw+QqeiYd3hKULfDtNe5BIQEqP6hNUWi6TrJMz14RSXARIQWA0ccDTY6BgjdP53xHdJoBoAKgAyADgASABQAA==</cenc:pssh></ContentProtection>
			<ContentProtection schemeIdUri="urn:mpeg:dash:mp4protection:2011" value="cenc" cenc:default_KID="c78f56d8-3730-7cc2-346e-cab5efc583c8"/>
			<SupplementalProperty schemeIdUri="urn:mpeg:dash:adaptation-set-switching:2016" value="0,1,3"/>
			
			<Representation id="3518" bandwidth="4800000" codecs="hvc1.1.2.L123" mimeType="video/mp4" width="1920" height="1080" frameRate="50">
				<SegmentTemplate timescale="90000" initialization="0_1_3518_init" media="0_1_3518_$Time$">
					<SegmentTimeline>
						<S t="149131310175180" d="288000" r="4502"/>
					</SegmentTimeline>
				</SegmentTemplate>
			</Representation>
		</AdaptationSet>
		<AdaptationSet id="3" group="1" segmentAlignment="true" startWithSAP="1" contentType="video">
			<ContentProtection schemeIdUri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"><cenc:pssh>AAAAiHBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAGgIARIQH7rsOV0BM3TmyyBxB90bChIQx49W2DcwfMI0bsq178WDyBIQTPw+QqeiYd3hKULfDtNe5BIQEqP6hNUWi6TrJMz14RSXARIQWA0ccDTY6BgjdP53xHdJoBoAKgAyADgASABQAA==</cenc:pssh></ContentProtection>
			<ContentProtection schemeIdUri="urn:mpeg:dash:mp4protection:2011" value="cenc" cenc:default_KID="1fbaec39-5d01-3374-e6cb-207107dd1b0a"/>
			<SupplementalProperty schemeIdUri="urn:mpeg:dash:adaptation-set-switching:2016" value="0,1,2"/>
			
			<Representation id="3519" bandwidth="14800000" codecs="hvc1.1.2.L123" mimeType="video/mp4" width="1920" height="1080" frameRate="50">
				<SegmentTemplate timescale="90000" initialization="0_1_3519_init" media="0_1_3519_$Time$">
					<SegmentTimeline>
						<S t="149131310175180" d="288000" r="4502"/>
					</SegmentTimeline>
				</SegmentTemplate>
			</Representation>
		</AdaptationSet>
		<AdaptationSet id="376" group="2" segmentAlignment="true" startWithSAP="1" contentType="audio" lang="fra">
			<ContentProtection schemeIdUri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"><cenc:pssh>AAAAiHBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAGgIARIQH7rsOV0BM3TmyyBxB90bChIQx49W2DcwfMI0bsq178WDyBIQTPw+QqeiYd3hKULfDtNe5BIQEqP6hNUWi6TrJMz14RSXARIQWA0ccDTY6BgjdP53xHdJoBoAKgAyADgASABQAA==</cenc:pssh></ContentProtection>
			<ContentProtection schemeIdUri="urn:mpeg:dash:mp4protection:2011" value="cenc" cenc:default_KID="580d1c70-34d8-e818-2374-fe77c47749a0"/>
			
			<Role schemeIdUri="urn:mpeg:dash:role:2011" value="main"/>
			<Representation id="376" bandwidth="64000" codecs="mp4a.40.2" mimeType="audio/mp4">
				<SegmentTemplate timescale="90000" initialization="0_1_376_init" media="0_1_376_$Time$">
					<SegmentTimeline>
						<S t="149131310114096" d="288000" r="4502"/>
					</SegmentTimeline>
				</SegmentTemplate>
			</Representation>
		</AdaptationSet>
		<AdaptationSet id="377" group="2" segmentAlignment="true" startWithSAP="1" contentType="audio" lang="und">
			<ContentProtection schemeIdUri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"><cenc:pssh>AAAAiHBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAGgIARIQH7rsOV0BM3TmyyBxB90bChIQx49W2DcwfMI0bsq178WDyBIQTPw+QqeiYd3hKULfDtNe5BIQEqP6hNUWi6TrJMz14RSXARIQWA0ccDTY6BgjdP53xHdJoBoAKgAyADgASABQAA==</cenc:pssh></ContentProtection>
			<ContentProtection schemeIdUri="urn:mpeg:dash:mp4protection:2011" value="cenc" cenc:default_KID="580d1c70-34d8-e818-2374-fe77c47749a0"/>
			
			<Role schemeIdUri="urn:mpeg:dash:role:2011" value="main"/>
			<Representation id="377" bandwidth="64000" codecs="mp4a.40.2" mimeType="audio/mp4">
				<SegmentTemplate timescale="90000" initialization="0_1_377_init" media="0_1_377_$Time$">
					<SegmentTimeline>
						<S t="149131310114096" d="288000" r="4502"/>
					</SegmentTimeline>
				</SegmentTemplate>
			</Representation>
		</AdaptationSet>
		<AdaptationSet id="455" group="3" segmentAlignment="true" startWithSAP="1" contentType="text" lang="fra">
			
			
			<Role schemeIdUri="urn:mpeg:dash:role:2011" value="caption"/>
			<Representation id="455" bandwidth="64000" codecs="stpp" mimeType="application/mp4">
				<SegmentTemplate timescale="90000" initialization="0_1_455_init" media="0_1_455_$Time$">
					<SegmentTimeline>
						<S t="149131310112000" d="288000" r="4502"/>
					</SegmentTimeline>
				</SegmentTemplate>
			</Representation>
		</AdaptationSet>
		<AdaptationSet id="461" group="3" segmentAlignment="true" startWithSAP="1" contentType="text" lang="fra">
			
			
			<Role schemeIdUri="urn:mpeg:dash:role:2011" value="subtitle"/>
			<Representation id="461" bandwidth="64000" codecs="stpp" mimeType="application/mp4">
				<SegmentTemplate timescale="90000" initialization="0_1_461_init" media="0_1_461_$Time$">
					<SegmentTimeline>
						<S t="149131310112000" d="288000" r="4502"/>
					</SegmentTimeline>
				</SegmentTemplate>
			</Representation>
		</AdaptationSet>
		<AdaptationSet id="463" group="2" segmentAlignment="true" startWithSAP="1" contentType="audio" lang="fra">
			<ContentProtection schemeIdUri="urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"><cenc:pssh>AAAAiHBzc2gAAAAA7e+LqXnWSs6jyCfc1R0h7QAAAGgIARIQH7rsOV0BM3TmyyBxB90bChIQx49W2DcwfMI0bsq178WDyBIQTPw+QqeiYd3hKULfDtNe5BIQEqP6hNUWi6TrJMz14RSXARIQWA0ccDTY6BgjdP53xHdJoBoAKgAyADgASABQAA==</cenc:pssh></ContentProtection>
			<ContentProtection schemeIdUri="urn:mpeg:dash:mp4protection:2011" value="cenc" cenc:default_KID="580d1c70-34d8-e818-2374-fe77c47749a0"/>
			
			<Role schemeIdUri="urn:mpeg:dash:role:2011" value="description"/>
			<Representation id="463" bandwidth="64000" codecs="mp4a.40.2" mimeType="audio/mp4">
				<SegmentTemplate timescale="90000" initialization="0_1_463_init" media="0_1_463_$Time$">
					<SegmentTimeline>
						<S t="149131310114096" d="288000" r="4502"/>
					</SegmentTimeline>
				</SegmentTemplate>
			</Representation>
		</AdaptationSet>
		
	</Period>
</MPD>

Quote

5th Jul 2022 15:53 #4

[ss]vegeta

Member

Do the keys work for decrypting the other lower resolutions and avc codec?

click click2
If I/my posts ever helped you, and you want to give back, send me a private message!

Quote

6th Jul 2022 19:51 #5

dr.mohamed

Member

Originally Posted by [ss]vegeta

Do the keys work for decrypting the other lower resolutions and avc codec?

no i can't decrypt any resolution !!!!

from google they sad you need to add trex and tkhd manually

Quote

6th Jul 2022 20:06 #6

perwann

Member

try decrypt it like 00000000:key

Quote

8th Jul 2022 07:35 #7

dr.mohamed

Member

Originally Posted by perwann

try decrypt it like 00000000:key

tested before
1:key
00000000:key

lol not working

Quote

17th Aug 2022 20:21 #8

dr.mohamed

Member

mediainfo:

General
Complete name : 0_1_3519_init.mp4
Format : MPEG-4
Format profile : Base Media / Version 1
Codec ID : mp41 (iso8/isom/mp41/dash/hvc1/cmfc)
File size : 877 Bytes
Encoded date : UTC 2022-07-05 02:01:10
Tagged date : UTC 2022-07-05 02:01:10

Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main@L4.1@Main
Codec ID : encv / hvc1
Codec ID/Info : High Efficiency Video Coding
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 50.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Encoded date : UTC 2022-07-05 02:01:10
Tagged date : UTC 2022-07-05 02:01:10
Encryption : Encrypted
Codec configuration box : hvcC