81 	uint8_t digest[20];
161  * @brief read a bunch of data from MMC into memory.
225  * @brief returns a location where the 2nd stage bootloader can be(/ is) placed.
243  * @brief returns a location where the image can be(/ is) placed.
257  * @brief get the size of a given (TPM) NV area
281 	ptr += 2 + v16 + 1 + 20;  in get_tpm_nv_size()
283 	ptr += 2 + v16 + 1 + 20;  in get_tpm_nv_size()
292  * @brief search for a key by usage auth and pub key hash.
298 static int find_key(struct udevice *tpm, const uint8_t auth[20],  in find_key()  argument
299 		    const uint8_t pubkey_digest[20], uint32_t *handle)  in find_key()  argument
306 	uint8_t digest[20];  in find_key()
330 		if (!memcmp(digest, pubkey_digest, 20)) {  in find_key()
339  * @brief read CCDM common data from TPM NV
374  * @brief compute hash of bootloader itself.
397  * @brief compute the hash of the 2nd stage boot loader (on SD card)
449  * @brief get pointer to  hash register by specification
476  * @brief get pointer of a hash register by specification and usage.
505 					result->digest, 20);  in access_hreg()
519 					memcpy(result->digest, vendor, 20);  in access_hreg()
574 	uint8_t digest[20];  in compute_extend()
609  * @brief executes the next opcode on the hash register engine.
624 	uint8_t buf[20];  in hre_execute_op()
659 			for (i = 0; i < 20; ++i) {  in hre_execute_op()
686 				memset(buf, 0, 20);  in hre_execute_op()
689 				memset(buf, *data, 20);  in hre_execute_op()
691 			} else if (data_size >= 20) {  in hre_execute_op()
695 				for (ptr = (uint8_t *)src_buf, i = 20; i > 0;  in hre_execute_op()
701 		bin_func(dst_reg->digest, src_buf, 20);  in hre_execute_op()
733  * @brief runs a program on the hash register engine.
757 	uint8_t key[20], computed_hmac[20];  in check_hmac()
764 	compute_extend(key, pcr_hregs[1].digest, 20);  in check_hmac()
765 	compute_extend(key, pcr_hregs[2].digest, 20);  in check_hmac()
766 	compute_extend(key, pcr_hregs[3].digest, 20);  in check_hmac()
767 	compute_extend(key, pcr_hregs[4].digest, 20);  in check_hmac()
771 	return memcmp(computed_hmac, hmac->code + 4, 20);  in check_hmac()
879  * @brief load a key program from file system.
1023 	0x81, 0x02, 0x40, 0x14, /* opcode: LOAD PCR4, #<20B data> */
1030 	0x81, 0x01, 0x00, 0x14, /* opcode: LOAD v0, #<20B data> */
1145 		print_buffer(0, hash_ptr->digest, 1, 20, 20);  in show_self_hash()
1153  * @brief let the system hang.