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| author | gVisor bot <gvisor-bot@google.com> | 2020-08-31 12:50:31 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-08-31 12:52:21 -0700 |
| commit | 911cecaa34f15d9591fa060d943c35791adca855 (patch) | |
| tree | 76525e1d8f6a12f9890c0853e0308e2fb7823671 /pkg/merkletree | |
| parent | ba25485d96833b3852c2fbbca508414b3b96d430 (diff) | |
Implement walk in gvisor verity fs
Implement walk directories in gvisor verity file system. For each step,
the child dentry is verified against a verified parent root hash.
PiperOrigin-RevId: 329358747
Diffstat (limited to 'pkg/merkletree')
| -rw-r--r-- | pkg/merkletree/merkletree.go | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/pkg/merkletree/merkletree.go b/pkg/merkletree/merkletree.go index 1a0477c6a..36832ec86 100644 --- a/pkg/merkletree/merkletree.go +++ b/pkg/merkletree/merkletree.go @@ -29,6 +29,12 @@ const ( sha256DigestSize = 32 ) +// DigestSize returns the size (in bytes) of a digest. +// TODO(b/156980949): Allow config other hash methods (SHA384/SHA512). +func DigestSize() int { + return sha256DigestSize +} + // Layout defines the scale of a Merkle tree. type Layout struct { // blockSize is the size of a data block to be hashed. |