3 ms·
It's also reversible: newid = AES-EncryptBlock(0||id) 0||id = AES-DecryptBlock(newid) Check for 8 zero bytes for authentication. Bonus: can use a constant in
by dchest 7y ago
It's also reversible:
newid = AES-EncryptBlock(0||id)
0||id = AES-DecryptBlock(newid)
Check for 8 zero bytes for authentication. Bonus: can use a constant instead of zeros for domain separation (eg different DB columns or tables).