Lines Matching full:hash
21 This is the type of the on-disk hash format.
37 This is the device that supplies the hash tree data. It may be
44 Each block corresponds to one digest on the hash device.
47 The size of a hash block in bytes.
56 to the root block of the hash tree.
59 The cryptographic hash algorithm used for this device. This should
63 The hexadecimal encoding of the cryptographic hash of the root hash block
64 and the salt. This hash should be trusted as there is no other authenticity
96 Use forward error correction (FEC) to recover from corruption if hash
98 may be the same device where data and hash blocks reside, in which case
99 fec_start must be outside data and hash areas.
102 on the hash device after the hash blocks.
104 Note: block sizes for data and hash devices must match. Also, if the
127 Hash blocks are still verified each time they are read from the hash device,
128 since verification of hash blocks is less performance critical than data
129 blocks, and a hash block will not be verified any more after all the data
135 the root hash during the creation of the device mapper block device.
150 tree, the root hash, then the I/O will fail. This should detect
151 tampering with any data on the device and the hash data.
154 per-block basis. This allows for a lightweight hash computation on first read
159 corrupted data will be verified using the cryptographic hash of the
163 Hash Tree
166 Each node in the tree is a cryptographic hash. If it is a leaf node, the hash
168 the hash of a number of child nodes is calculated.
195 It only reads the hash blocks which directly follow the header.
203 Directly following the header (and with sector number padded to the next hash
204 block boundary) are the hash blocks which are stored a depth at a time
227 the hash tree or activate the kernel device. This is available from
231 Create hash on the device::
235 Root hash: 4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076