Overview - 2024.1 English

Vitis Libraries

Release Date
2024.1 English

The Counter (CTR) mode is a typical block cipher mode of operation using block cipher algorithm. In this version, Advanced Encryption Standard (AES) processing ability is provided. The cipherkey length for AES should be 128/192/256 bits. Another limitation is that the working mode works on units of a fixed size (128 bits for 1 block), but text in the real world has a variety of lengths. So, the last block of the text provided to this primitive must be padded to 128 bits before encryption or decryption.