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When used in conjunction with a compatible Trusted Platform Module (TPM), BitLocker can validate the integrity of boot and system files before decrypting a protected volume; an unsuccessful validation will prohibit access to a protected system. [6] [7] BitLocker was briefly called Secure Startup before Windows Vista's release to manufacturing. [6]
Without cryptographic protection of a hardware (TPM) supported secure boot environment, PBA is easily defeated with Evil Maid style of attacks. However, with modern hardware (including TPM or cryptographic multi-factor authentication) most FDE solutions are able to ensure that removal of hardware for brute-force attacks is no longer possible.
PCR values are available both locally and remotely. Furthermore, the TPM has the capability to digitally sign the PCR values (i.e., a PCR Quote) so that any entity can verify that the measurements come from, and are protected by, a TPM, thus enabling Remote Attestation to detect tampering, corruption, and malicious software.
The TPM can impose a limit on decryption attempts per unit time, making brute-forcing harder. The TPM itself is intended to be impossible to duplicate, so that the brute-force limit is not trivially bypassed. [5] Although this has the advantage that the disk cannot be removed from the device, it might create a single point of failure in the ...
CryptoPro Secure Disk for BitLocker cpsd it-services GmbH 2012 Proprietary: Yes CryptSync Stefan Küng 2012 GPL v2: Yes Discryptor Cosect Ltd. 2008 Proprietary: No DiskCryptor: ntldr, David Xanatos 2007 GPL: No [12] DISK Protect Becrypt Ltd 2001 Proprietary: Yes Cryptsetup / Dmsetup: Christophe Saout 2004-03-11 [13] GPL: Yes Dm-crypt / LUKS ...
Components of a Trusted Platform Module complying with the TPM version 1.2 standard. Trusted Platform Module (TPM) is an international standard for a secure cryptoprocessor, a dedicated microcontroller designed to secure hardware through integrated cryptographic keys.
Although the TPM can only store a single cryptographic key securely, secure storage of arbitrary data is by extension possible by encrypting the data such that it may only be decrypted using the securely stored key. The TPM is also able to produce a cryptographic signature based on its hidden key. This signature may be verified by the user or ...
[3] [4] The presence of this header is a major difference between LUKS and dm-crypt, since the header allows multiple different passphrases to be used, with the ability to change and remove them. If the header is lost or corrupted, the device will no longer be decryptable. [5] Encryption is done with a multi-layer approach.