crypto_lskcipher_blocksize
unsigned int bsize = crypto_lskcipher_blocksize(tfm);
unsigned int bsize = crypto_lskcipher_blocksize(tfm);
unsigned int bsize = crypto_lskcipher_blocksize(tfm);
unsigned int bsize = crypto_lskcipher_blocksize(tfm);
unsigned bs = crypto_lskcipher_blocksize(tfm);