Data Integrity Checksums

SOS supports data integrity verification using checksums. When uploading objects, you can specify a checksum algorithm and SOS will verify the data was transmitted correctly.

Supported Algorithms

• CRC32
• CRC32C
• CRC64NVME

Uploading with Checksum

aws --endpoint https://sos-ch-gva-2.exo.io/ s3api put-object \
  --bucket my-bucket \
  --key my-object.txt \
  --body my-file.txt \
  --checksum-algorithm CRC32

Retrieving Checksum

Use --checksum-mode ENABLED to retrieve an object’s checksum:

aws --endpoint https://sos-ch-gva-2.exo.io/ s3api head-object \
  --bucket my-bucket \
  --key my-object.txt \
  --checksum-mode ENABLED