linux-master/crypto/cmac.c

26  * | consts (block size * 2)
31 	__be64 consts[];
55 	__be64 *consts = ctx->consts;
65 	memset(consts, 0, bs);
66 	crypto_cipher_encrypt_one(ctx->child, (u8 *)consts, (u8 *)consts);
71 		_const[0] = be64_to_cpu(consts[1]);
72 		_const[1] = be64_to_cpu(consts[0]);
80 			consts[i + 0] = cpu_to_be64(_const[1]);
81 			consts[i + 1] = cpu_to_be64(_const[0]);
87 		_const[0] = be64_to_cpu(consts[0]);
94 			consts[i] = cpu_to_be64(_const[0]);
187 	crypto_xor(prev, (const u8 *)tctx->consts + offset, bs);