protected boolean isGenerateInitializationVectors(boolean streaming) {
        return isGenerateInitializationVectors();
    }
Sets the algorithm-specific initialization vector size in bits (not bytes!) to be used when generating
initialization vectors.  The  value must be a multiple of {@code 8} to ensure that the IV can be represented
as a byte array.

@param initializationVectorSize the size in bits (not bytes) of generated initialization vectors.
@throws IllegalArgumentException if the size is not a multiple of {@code 8}.
crypto/cipher/src/main/java/org/apache/shiro/crypto/cipher/JcaCipherService.java