https://www.ffmpeg.org/doxygen/trunk/tests_2aes__ctr_8c_source.html
FFmpeg: libavutil/tests/aes_ctr.c Source File
aes ctrffmpeglibavutiltestssource
https://www.ibm.com/support/pages/apar/IV76659
IV76659: AES/CTR DOESN'T BEHAVE STREAM CIPHER LIKE
Error Message: When using AES/CTR, the length of output of Cipher.update() is not the same as the input data length.
aes ctrstream cipherbehavelike
https://lkml.org/lkml/2025/11/26/833
LKML: T Pratham: [PATCH v7 1/3] crypto: ti - Add support for AES-CTR in DTHEv2 driver