Use fast data algorithms (2021)
AWS S3 right now supports CRC32, CRC32C, SHA-1, and SHA-256 (<a href="https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html" rel="nofollow">https://docs.aws.amazon.com/AmazonS3/latest/userguide/checki...</a>), which is interesting given the announcement to support the four wasn't long ago (<a href="https://aws.amazon.com/blogs/aws/new-additional-checksum-algorithms-for-amazon-s3/)—it" rel="nofollow">https://aws.amazon.com/blogs/aws/new-additional-checksum-alg...</a> seems like they went with what's more widely used than actually faster?