I know that base64 increases the total ‘size’ of the specific image or text by 1/3, but what about AES_ENCRYPT?
I know that base64 increases the total ‘size’ of the specific image or text
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I know that base64 increases the total ‘size’ of the specific image or text by 1/3, but what about AES_ENCRYPT?
AES is a block cipher and thus processes data only in multiples of a specified block size. Its input (and as a result is output) is padded with enough bytes to round the size up towards a multiple of the block size. Since the manual says that an 128-bit key is used, we know the block size is 16 bytes.
The manual also gives a formula that describes this mathematically: