I was wondering if there was a way to recompile ogg123 so that it didnt look for "Ogg" at the start of each file. Ie change it so it looked for "Dog" or something. Why you ask? because in theory Im not ment to have any music files on my work computer NFI why but just cant. If I could mask an ogg file to look like another file then I could beat the system. Assuming that they even know what Ogg Vorbis is. the bits in the header I would like to change are Ogg vorbis Xiphophorus libVorbis cheers the captain _________________________________________________________________ The new MSN 8: smart spam protection and 2 months FREE* http://join.msn.com/?page=features/junkmail --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
captain birdseye <captainbrowneye@hotmail.com> said:> > > I was wondering if there was a way to recompile ogg123 so that it didnt look > for "Ogg" at the start of each file. Ie change it so it looked for "Dog" or > something. Why you ask? because in theory Im not ment to have any music > files on my work computer NFI why but just cant. If I could mask an ogg file > to look like another file then I could beat the system. Assuming that they > even know what Ogg Vorbis is. >The Ogg specification requires the "OggS" at the start of every page (generally, roughly ever 4 kB throughout the file). Whilst it would be possible to change this (and the other things you're looking for), we're not going to help you do it - if you want to do stuff that you're not allowed to do, you can go to the effort of figuring it all out yourself. It's easy enough (various places in libvorbis and libogg). <p>Mike --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
On Sun, 2003-03-02 at 22:39, captain birdseye wrote:> I was wondering if there was a way to recompile ogg123 so that it didnt look > for "Ogg" at the start of each file. Ie change it so it looked for "Dog" or > something. Why you ask? because in theory Im not ment to have any music > files on my work computer NFI why but just cant. If I could mask an ogg file > to look like another file then I could beat the system. Assuming that they > even know what Ogg Vorbis is.I think purchasing a portable USB hard drive would be easier. :) --- Stan Seibert <p><p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
If you change the file extension of all your ogg files, and associate the new extension with ogg123, I suspect your files won't be detected.> -----Original Message----- > From: Stan Seibert [mailto:volsung@mailsnare.net] > Sent: Sunday, March 02, 2003 11:59 PM > To: vorbis-dev@xiph.org > Subject: Re: [vorbis-dev] file header > > > On Sun, 2003-03-02 at 22:39, captain birdseye wrote: > > I was wondering if there was a way to recompile ogg123 so > that it didnt look > > for "Ogg" at the start of each file. Ie change it so it > looked for "Dog" or > > something. Why you ask? because in theory Im not ment to > have any music > > files on my work computer NFI why but just cant. If I could > mask an ogg file > > to look like another file then I could beat the system. > Assuming that they > > even know what Ogg Vorbis is. > > I think purchasing a portable USB hard drive would be easier. :) > > --- > Stan Seibert > > > > --- >8 ---- > List archives: http://www.xiph.org/archives/ > Ogg project homepage: http://www.xiph.org/ogg/ > To unsubscribe from this list, send a message to > 'vorbis-dev-request@xiph.org' > containing only the word 'unsubscribe' in the body. No > subject is needed. > Unsubscribe messages sent to the list will be ignored/filtered. >--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
> -----Original Message----- > From: captain birdseye [mailto:captainbrowneye@hotmail.com] > Sent: 03 March 2003 04:40 > To: vorbis-dev@xiph.org > Subject: [vorbis-dev] file header > > I was wondering if there was a way to recompile ogg123 so > that it didnt look > for "Ogg" at the start of each file. Ie change it so it > looked for "Dog" or > something. Why you ask? because in theory Im not ment to have > any music > files on my work computer NFI why but just cant. If I could > mask an ogg file > to look like another file then I could beat the system. > Assuming that they > even know what Ogg Vorbis is. > > the bits in the header I would like to change are > > Ogg vorbis Xiphophorus libVorbisEasy to do without modifying libvorbis/ogg at all... eor.cpp: #include <stdio.h> int main() { int c; while((c = fgetc(stdin)) != EOF) putchar(c ^ 0xff); } Compile with: g++ -O -Wall -o eor eor.cpp "Encrypt" with: "./eor <ogg_file.ogg >ogg_file.encrypt" Play back with: "./eor <ogg_file.encrypt | oggdec -" Of course it doesn't take much to "crack" that encryption :) - John Ripley. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Why not use gpg to encrypt and decrypt? You could do the following: gpg -c music.ogg -o music.gpg then you can listen to your music with: gpg -d music.gpg | ogg123 - In this mode, gpg uses symmetric key crypto, so just give it any simple passphrase (since you don't really care about keeping it ultra secret). You could automate this process with a script easily, and you can have gpg read the passphrase from a file descriptor. (see option --passphrase-fd n ) I think this is a better solution that hacking up your ogg files and ogg123. Best, Oscar. On Mon, Mar 03, 2003 at 04:39:39AM +0000, captain birdseye wrote:> > > I was wondering if there was a way to recompile ogg123 so that it didnt > look for "Ogg" at the start of each file. Ie change it so it looked for > "Dog" or something. Why you ask? because in theory Im not ment to have any > music files on my work computer NFI why but just cant. If I could mask an > ogg file to look like another file then I could beat the system. Assuming > that they even know what Ogg Vorbis is. > > the bits in the header I would like to change are > > Ogg vorbis Xiphophorus libVorbis > > cheers > the captain > > _________________________________________________________________ > The new MSN 8: smart spam protection and 2 months FREE* > http://join.msn.com/?page=features/junkmail > > --- >8 ---- > List archives: http://www.xiph.org/archives/ > Ogg project homepage: http://www.xiph.org/ogg/ > To unsubscribe from this list, send a message to > 'vorbis-dev-request@xiph.org' > containing only the word 'unsubscribe' in the body. No subject is needed. > Unsubscribe messages sent to the list will be ignored/filtered.-- boykin@pobox.com http://pobox.com/~boykin jabber: johnynek@jabber.org fingerprint=159A FA02 DF12 E72F B68F 5B2D C368 3BCA 36D7 CF28 Ogg Vorbis is better than MP3: http://www.vorbis.com/faq.psp#artist -------------- next part -------------- A non-text attachment was scrubbed... Name: part Type: application/pgp-signature Size: 233 bytes Desc: not available Url : http://lists.xiph.org/pipermail/vorbis-dev/attachments/20030311/870b8adf/part-0001.pgp