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--- tech:notes_truecrypt_veracrypt_tcplay [2025/03/24 15:06] – créée - modification externe 127.0.0.1
+++ tech:notes_truecrypt_veracrypt_tcplay [2026/01/13 11:43] (Version actuelle) – Jean-Baptiste
@@ Ligne 1: / Ligne 1: @@
+<!DOCTYPE markdown>
+{{tag>Brouillon Crypt}}
+# Notes TrueCrypt VeraCrypt tcplay
+Voir :
+* https://keyj.emphy.de/real-steganography-with-truecrypt/
+Voir aussi :
+* [[notes_gostcrypt|GostCrypt]]
+## tcplay
+**tcplay** est une implémentation libre de TrueCrypt inclus dans les dépôts Debian
+~~~
+Device     Boot Start      End  Sectors  Size Id Type
+/dev/sda1          32 30031871 30031840 14.3G  c W95 FAT32 (LBA)
+c W95 FAT32 (LBA)
+~~~
+~~~bash
+apt-get install fatresize
+dd if=/dev/urandom of=/dev/sda bs=4096 conv=notrunc status=progress
+dd if=/dev/zero of=/dev/sda bs=512 count=1 conv=notrunc
+parted --align optimal /dev/sda mklabel msdos mkpart p fat32 1MiB 100%
+parted -ms /dev/sda print
+~~~
+~~~
+usb-SanDisk_Ultra_USB_3.0
+/dev/sda1 on /media/jibe/6E6F-0B54 type vfat (rw,nosuid,nodev,relatime,uid=1000,gid=1000,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,showexec,utf8,flush,errors=remount-ro,uhelper=udisks2)
+/dev/sda1: UUID="6E6F-0B54" BLOCK_SIZE="512" TYPE="vfat"
+~~~
+~~~bash
+parted /dev/sda
+unit s
+resizepart 1 15015935s
+#mkpart primary ext4 15015936s 30031871s
+mkpart primary ext4 15015936s 100%
+~~~
+~~~bash
+mkfs.vfat -F 32 -n SANDISK /dev/sda1
+#tcplay -c -z -d /dev/sda2 -k key1
+tcplay -c -z -d /dev/sda2
+#tcplay -m enc_steg -d /dev/sda2 -k key1
+tcplay -m enc_steg -d /dev/sda2
+mkfs.ext4 /dev/mapper/enc_steg
+~~~
+~~~bash
+rm 2
+resizepart 1 100%
+fatresize -s max /dev/sda1
+~~~
+-------
+# Autres
+~~~
+$ /usr/sbin/tcplay --help
+...
+-a <pbkdf prf algorithm>, --pbkdf-prf=<pbkdf prf algorithm>
+         Specifies which hashing function to use for the PBKDF password
+         derivation when creating a new volume.
+         To see valid options, specify '-a help'.
+...
+~~~
+~~~
+$ /usr/sbin/tcplay -a help
+Valid PBKDF PRF algorithms are: RIPEMD160 RIPEMD160 SHA512 whirlpool
+~~~
+~~~bash
+tcplay --create --hidden --device=/dev/loop0 --cipher=AES-256-XTS,TWOFISH-256-XTS --pbkdf-prf=whirlpool --keyfile=one.key --cipher-hidden=AES-256-XTS --pbkdf-prf-hidden=whirlpool --keyfile-hidden=hidden.key
+# Creation
+tcplay --create --hidden --device=/dev/loop0 --cipher=TWOFISH-256-XTS --pbkdf-prf=whirlpool --keyfile=key1 --keyfile=key2 --cipher-hidden=AES-256-XTS --pbkdf-prf-hidden=whirlpool --keyfile-hidden=key3
+# Monter le volume
+tcplay -m crypt1 -d /dev/loop0 --keyfile=key1 --keyfile=key2
+# Monter le volume en protegeant le volume caché
+tcplay -m crypt1 -d /dev/loop0 --keyfile=key1 --keyfile=key2 --protect-hidden --keyfile-hidden=key3
+# Monter le volume caché
+tcplay -m hidden --device=/dev/loop0 --keyfile=key3
+mkfs.ntfs -f /dev/mapper/crypt1
+~~~
+Fin
+~~~bash
+umount /mnt/crypt1/
+dmsetup remove crypt1
+~~~
+## Autres
+Comment marquer la partition FAT en "dirty" ?