Problem Summary
I downloaded the ATLAS R2.0 dataset (OpenSSL-encrypted version) from the official S3 bucket. The file size matches the expected size (~14.4 GB), but decryption fails consistently with a "bad magic number" error.
Steps Taken
Downloaded file via Cyberduck from:
fcp-indi/data/Projects/INDI/ATLAS/R2.0
Verified file size:
ATLAS_R2.0_encrypted.tar.gz → 14,393,499,795 bytes
Used OpenSSL command:
openssl aes-256-cbc -md md5 -d
-in ATLAS_R2.0_encrypted.tar.gz
-out ATLAS_R2.0.tar.gz
Entered encryption key obtained from Google Form submission.
Error
bad magic number
What I Have Verified
File size is correct (matches expected OpenSSL dataset size)
Download completed without interruption
Command syntax is correct
Tried both copy-paste and manual entry of key
Key contains no leading/trailing spaces (verified in notebook)
Additional Context
I did not receive a confirmation email with the key; I am currently using the key shown after Google Form submission.
Previously attempted ccrypt version (10.6 GB), but that download was incomplete (~9.89 GB), so I switched to OpenSSL version.
Request
Could you please:
Confirm whether the key shown after form submission is valid for OpenSSL decryption
Resend or verify the correct encryption key for this dataset
Confirm if there are separate keys for ccrypt vs OpenSSL versions
Thank you.
Problem Summary
I downloaded the ATLAS R2.0 dataset (OpenSSL-encrypted version) from the official S3 bucket. The file size matches the expected size (~14.4 GB), but decryption fails consistently with a "bad magic number" error.
Steps Taken
Downloaded file via Cyberduck from:
fcp-indi/data/Projects/INDI/ATLAS/R2.0
Verified file size:
ATLAS_R2.0_encrypted.tar.gz → 14,393,499,795 bytes
Used OpenSSL command:
openssl aes-256-cbc -md md5 -d
-in ATLAS_R2.0_encrypted.tar.gz
-out ATLAS_R2.0.tar.gz
Entered encryption key obtained from Google Form submission.
Error
bad magic number
What I Have Verified
File size is correct (matches expected OpenSSL dataset size)
Download completed without interruption
Command syntax is correct
Tried both copy-paste and manual entry of key
Key contains no leading/trailing spaces (verified in notebook)
Additional Context
I did not receive a confirmation email with the key; I am currently using the key shown after Google Form submission.
Previously attempted ccrypt version (10.6 GB), but that download was incomplete (~9.89 GB), so I switched to OpenSSL version.
Request
Could you please:
Confirm whether the key shown after form submission is valid for OpenSSL decryption
Resend or verify the correct encryption key for this dataset
Confirm if there are separate keys for ccrypt vs OpenSSL versions
Thank you.