3 ms·
An s3 bucket will give you back an ETAG header for each file it holds, which is more or less the MD5 of a set of chunks that make up the file. You can use that
by stuaxo 5y ago
An s3 bucket will give you back an ETAG header for each file it holds, which is more or less the MD5 of a set of chunks that make up the file.
You can use that to identify files.
- orf 5y agoOnly if the file is not uploaded via a multipart upload, which all SDKs do for any files larger than a megabyte. If the object is encrypted with KMS, which almost everything is, then the hash is the encrypted contents and not the original contents.