crypto/cipher: It should support another interface for CTR mode

Open binkoni opened this issue 7 years ago • 2 comments

What did you do?

I want to write code that can efficiently encrypt or decrypt a portion of large files using random access I/O. Theoretically in CTR mode it is possible to encrypt/decrypt arbitrary block independently. But with the lack of alternative interface to Stream interface, there is no way to take advantage of CTR mode.

What did you expect to see?

Another interface for CTR mode, or maybe custom counter support would be good too.

What did you see instead?

Only Stream interface exists.

Jul 29 '18 15:07 binkoni

CC @FiloSottile

Aug 03 '18 14:08 ianlancetaylor

Change https://go.dev/cl/621958 mentions this issue: crypto/aes: speedup CTR mode on AMD64 and ARM64

Oct 26 '24 22:10 gopherbot