S3 Checksum Verification

This repo provides a simple mechanism to validate local file integrity against the checksums generated and stored by S3 with the object.

1. Clone the code from Github and enter the repo:

git clone https://github.com/aws-samples/s3-checksum-verification
cd s3-checksum-verification

2. Install the python packages the script needs:

pip install requirements.txt

3. Configure AWS cli credentials following this guide.
4. Run the following command to check file integrity

./integrity-check.py  --bucketName <your bucketname> --objectName <folder/objectname-in-s3> --localFileName <local file name>

5. You should see a confirmation confirming the data matches e.g.

PASS: Checksum match! - s3Checksum: GgECtUetQSLtGNuZ+FEqrbkJ3712Afvx63E2pzpMKnk= | localChecksum: GgECtUetQSLtGNuZ+FEqrbkJ3712Afvx63E2pzpMKnk=

Security

See CONTRIBUTING for more information.

License

This library is licensed under the MIT-0 License. See the LICENSE file.