About Checksums
- CRC32: Fast 8-character checksum, good for quick integrity checks
- FNV: Fast non-cryptographic hash, 32-character output
- SHA-1: 40-character cryptographic hash, widely used
- SHA-256: 64-character hash, most secure, recommended for important files
- Use case: Verify file downloads haven't been corrupted or tampered with
Common Uses
- Verify software downloads match official checksums
- Confirm backup files are identical to originals
- Detect file corruption during transfer
- Ensure file integrity for archival purposes