Step-by-Step TOTP

K (Base32-decoded)

2c 1c 09 61 6a 71 18 21 5d 50 23 e4 b0 e0 47 74 71 2e 89 f6

C (converted to bytes)

00 00 00 00 03 78 ac 17

HS = HMAC-SHA-1(K,C)

Details

key

(use H(K) because the input K is longer than 64 bytes)

2c 1c 09 61 6a 71 18 21 5d 50 23 e4 b0 e0 47 74 71 2e 89 f6

K XOR ipad

1a 2a 3f 57 5c 47 2e 17 6b 66 15 d2 86 d6 71 42 47 18 bf c0 36 36 36 36 36 36 36 36 36 36 36 36
36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36

K XOR opad

70 40 55 3d 36 2d 44 7d 01 0c 7f b8 ec bc 1b 28 2d 72 d5 aa 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c
5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c

K XOR ipad, text

1a 2a 3f 57 5c 47 2e 17 6b 66 15 d2 86 d6 71 42 47 18 bf c0 36 36 36 36 36 36 36 36 36 36 36 36
36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36
00 00 00 00 03 78 ac 17

H(K XOR ipad, text)

SHA-1 Details

input + padding

1a 2a 3f 57 5c 47 2e 17 6b 66 15 d2 86 d6 71 42 47 18 bf c0 36 36 36 36 36 36 36 36 36 36 36 36
36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36
00 00 00 00 03 78 ac 17 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02 40

process M(1)

Details

t	W(t)	A	B	C	D	E
-	-	0x67452301	0xefcdab89	0x98badcfe	0x10325476	0xc3d2e1f0
0	0x1a2a3f57	0xb9ded80a	0x67452301	0x7bf36ae2	0x98badcfe	0x10325476
1	0x5c472e17	0xfed2fc7b	0xb9ded80a	0x59d148c0	0x7bf36ae2	0x98badcfe
2	0x6b6615d2	0x94f466c8	0xfed2fc7b	0xae77b602	0x59d148c0	0x7bf36ae2
3	0x86d67142	0xab2ce351	0x94f466c8	0xffb4bf1e	0xae77b602	0x59d148c0
4	0x4718bfc0	0x1fc0a258	0xab2ce351	0x253d19b2	0xffb4bf1e	0xae77b602
5	0x36363636	0xad00cdf2	0x1fc0a258	0x6acb38d4	0x253d19b2	0xffb4bf1e
6	0x36363636	0x5b846734	0xad00cdf2	0x07f02896	0x6acb38d4	0x253d19b2
7	0x36363636	0x6e4de8a2	0x5b846734	0xab40337c	0x07f02896	0x6acb38d4
8	0x36363636	0xd4b128a6	0x6e4de8a2	0x16e119cd	0xab40337c	0x07f02896
9	0x36363636	0xb60f091b	0xd4b128a6	0x9b937a28	0x16e119cd	0xab40337c
10	0x36363636	0x90ab402a	0xb60f091b	0xb52c4a29	0x9b937a28	0x16e119cd
11	0x36363636	0x7a9e4917	0x90ab402a	0xed83c246	0xb52c4a29	0x9b937a28
12	0x36363636	0x259c96e9	0x7a9e4917	0xa42ad00a	0xed83c246	0xb52c4a29
13	0x36363636	0x9e83995e	0x259c96e9	0xdea79245	0xa42ad00a	0xed83c246
14	0x36363636	0xd356702b	0x9e83995e	0x496725ba	0xdea79245	0xa42ad00a
15	0x36363636	0xe7d8886e	0xd356702b	0xa7a0e657	0x496725ba	0xdea79245
16	0xe298550a	0xa1f4d457	0xe7d8886e	0xf4d59c0a	0xa7a0e657	0x496725ba
17	0xb522beab	0x7c97d70d	0xa1f4d457	0xb9f6221b	0xf4d59c0a	0xa7a0e657
18	0x58fd5424	0xe4109dde	0x7c97d70d	0xe87d3515	0xb9f6221b	0xf4d59c0a
19	0xc89c4890	0x837d4f26	0xe4109dde	0x5f25f5c3	0xe87d3515	0xb9f6221b
20	0xe47402d7	0xd036526b	0x837d4f26	0xb9042777	0x5f25f5c3	0xe87d3515
21	0xdd96c424	0xa114cfe6	0xd036526b	0xa0df53c9	0xb9042777	0x5f25f5c3
22	0xfd54fd4d	0xb7dc025a	0xa114cfe6	0xf40d949a	0xa0df53c9	0xb9042777
23	0xa48469c3	0xbda8d0e6	0xb7dc025a	0xa84533f9	0xf40d949a	0xa0df53c9
24	0x7e1d225c	0x2e8523d6	0xbda8d0e6	0xadf70096	0xa84533f9	0xf40d949a
25	0x90ec87cc	0x7c936655	0x2e8523d6	0xaf6a3439	0xadf70096	0xa84533f9
26	0xf8f27bcf	0xce967d91	0x7c936655	0x8ba148f5	0xaf6a3439	0xadf70096
27	0x6d02d599	0xb4fb8ea2	0xce967d91	0x5f24d995	0x8ba148f5	0xaf6a3439
28	0xe9310a36	0xc0faeb57	0xb4fb8ea2	0x73a59f64	0x5f24d995	0x8ba148f5
29	0x4ac97fd6	0xfd1ce7b7	0xc0faeb57	0xad3ee3a8	0x73a59f64	0x5f24d995
30	0x89f097d0	0x19edeba0	0xfd1ce7b7	0xf03ebad5	0xad3ee3a8	0x73a59f64
31	0x9d43d6d1	0x5d9d94a3	0x19edeba0	0xff4739ed	0xf03ebad5	0xad3ee3a8
32	0x1d62b949	0x03c28595	0x5d9d94a3	0x067b7ae8	0xff4739ed	0xf03ebad5
33	0xc945cc4e	0x4550fd0a	0x03c28595	0xd7676528	0x067b7ae8	0xff4739ed
34	0xb271f7db	0x9d915906	0x4550fd0a	0x40f0a165	0xd7676528	0x067b7ae8
35	0xcad5c0c8	0xc51d816b	0x9d915906	0x91543f42	0x40f0a165	0xd7676528
36	0x72a873c4	0xa8cfb926	0xc51d816b	0xa7645641	0x91543f42	0x40f0a165
37	0x03544bd5	0xc043e618	0xa8cfb926	0xf147605a	0xa7645641	0x91543f42
38	0x80d91013	0x88708d4b	0xc043e618	0xaa33ee49	0xf147605a	0xa7645641
39	0xb7069635	0x768de993	0x88708d4b	0x3010f986	0xaa33ee49	0xf147605a
40	0x31b3561f	0x2c04930e	0x768de993	0xe21c2352	0x3010f986	0xaa33ee49
41	0x68e51c11	0x94e4128d	0x2c04930e	0xdda37a64	0xe21c2352	0x3010f986
42	0x2968202e	0x711b5b88	0x94e4128d	0x8b0124c3	0xdda37a64	0xe21c2352
43	0xb95a7931	0xeb9efd32	0x711b5b88	0x653904a3	0x8b0124c3	0xdda37a64
44	0xf519e466	0x36d1c686	0xeb9efd32	0x1c46d6e2	0x653904a3	0x8b0124c3
45	0xfb6d85f9	0x5ce20d00	0x36d1c686	0xbae7bf4c	0x1c46d6e2	0x653904a3
46	0x5a228f77	0x2980c7c7	0x5ce20d00	0x8db471a1	0xbae7bf4c	0x1c46d6e2
47	0x2c32d198	0xa4949b3b	0x2980c7c7	0x17388340	0x8db471a1	0xbae7bf4c
48	0xcb9b3ae8	0xb5e2e245	0xa4949b3b	0xca6031f1	0x17388340	0x8db471a1
49	0x62af3fc0	0xc20c4a64	0xb5e2e245	0xe92526ce	0xca6031f1	0x17388340
50	0x8b06eb53	0x5c449acc	0xc20c4a64	0x6d78b891	0xe92526ce	0xca6031f1
51	0x76819189	0x41bd04a5	0x5c449acc	0x30831299	0x6d78b891	0xe92526ce
52	0xcb8f70e2	0xf7b183cd	0x41bd04a5	0x171126b3	0x30831299	0x6d78b891
53	0x88736695	0x8cc95c71	0xf7b183cd	0x506f4129	0x171126b3	0x30831299
54	0x3b92b1e5	0xeb8e1334	0x8cc95c71	0x7dec60f3	0x506f4129	0x171126b3
55	0x70bc56bc	0xe598e159	0xeb8e1334	0x6332571c	0x7dec60f3	0x506f4129
56	0xb6665498	0xb4bbd10d	0xe598e159	0x3ae384cd	0x6332571c	0x7dec60f3
57	0x1105d60b	0x193adaed	0xb4bbd10d	0x79663856	0x3ae384cd	0x6332571c
58	0x4f96f34e	0xa223f536	0x193adaed	0x6d2ef443	0x79663856	0x3ae384cd
59	0x05a073b3	0x8d4d5477	0xa223f536	0x464eb6bb	0x6d2ef443	0x79663856
60	0xeb639bf0	0x621adcdb	0x8d4d5477	0xa888fd4d	0x464eb6bb	0x6d2ef443
61	0x21758374	0xffedf47a	0x621adcdb	0xe353551d	0xa888fd4d	0x464eb6bb
62	0x5f16ef93	0x97486c0e	0xffedf47a	0xd886b736	0xe353551d	0xa888fd4d
63	0xaa844629	0xcab59d6f	0x97486c0e	0xbffb7d1e	0xd886b736	0xe353551d
64	0xaf1c0caf	0xa3bb77c1	0xcab59d6f	0xa5d21b03	0xbffb7d1e	0xd886b736
65	0xb47b2fa2	0x9f709c54	0xa3bb77c1	0xf2ad675b	0xa5d21b03	0xbffb7d1e
66	0x4b365dad	0xb86c32cd	0x9f709c54	0x68eeddf0	0xf2ad675b	0xa5d21b03
67	0xa89d1000	0x2b8b6d8f	0xb86c32cd	0x27dc2715	0x68eeddf0	0xf2ad675b
68	0x5e0aeaab	0x83e78de9	0x2b8b6d8f	0x6e1b0cb3	0x27dc2715	0x68eeddf0
69	0x2519dde1	0x37a98100	0x83e78de9	0xcae2db63	0x6e1b0cb3	0x27dc2715
70	0xf4fe35dc	0x038b9906	0x37a98100	0x60f9e37a	0xcae2db63	0x6e1b0cb3
71	0x2a6e586b	0x721200cd	0x038b9906	0x0dea6040	0x60f9e37a	0xcae2db63
72	0xe7eaed30	0x2e08be53	0x721200cd	0x80e2e641	0x0dea6040	0x60f9e37a
73	0xa8417f8c	0x93d0760d	0x2e08be53	0x5c848033	0x80e2e641	0x0dea6040
74	0x8b5adaf1	0xd02596da	0x93d0760d	0xcb822f94	0x5c848033	0x80e2e641
75	0xd7441bee	0x2c137909	0xd02596da	0x64f41d83	0xcb822f94	0x5c848033
76	0x847dc288	0xad27ca83	0x2c137909	0xb40965b6	0x64f41d83	0xcb822f94
77	0x4b65849a	0x8331c7b5	0xad27ca83	0x4b04de42	0xb40965b6	0x64f41d83
78	0xa7619a1d	0x8f1be19d	0x8331c7b5	0xeb49f2a0	0x4b04de42	0xb40965b6
79	0x61d9e6d1	0xe73f2d65	0x8f1be19d	0x60cc71ed	0xeb49f2a0	0x4b04de42

H0	H1	H2	H3	H4
0x4e845066	0x7ee98d26	0xf9874eeb	0xfb7c4716	0x0ed7c032

process M(2)

Details

t	W(t)	A	B	C	D	E
-	-	0x4e845066	0x7ee98d26	0xf9874eeb	0xfb7c4716	0x0ed7c032
0	0x00000000	0x337994c6	0x4e845066	0x9fba6349	0xf9874eeb	0xfb7c4716
1	0x0378ac17	0x882d5455	0x337994c6	0x93a11419	0x9fba6349	0xf9874eeb
2	0x80000000	0x7957ca3e	0x882d5455	0x8cde6531	0x93a11419	0x9fba6349
3	0x00000000	0xc0c268ca	0x7957ca3e	0x620b5515	0x8cde6531	0x93a11419
4	0x00000000	0xeafc0c1f	0xc0c268ca	0x9e55f28f	0x620b5515	0x8cde6531
5	0x00000000	0xe92bd866	0xeafc0c1f	0xb0309a32	0x9e55f28f	0x620b5515
6	0x00000000	0x963ad61d	0xe92bd866	0xfabf0307	0xb0309a32	0x9e55f28f
7	0x00000000	0xb86e31f0	0x963ad61d	0xba4af619	0xfabf0307	0xb0309a32
8	0x00000000	0x130928fd	0xb86e31f0	0x658eb587	0xba4af619	0xfabf0307
9	0x00000000	0xd87593cb	0x130928fd	0x2e1b8c7c	0x658eb587	0xba4af619
10	0x00000000	0x8a0f86ab	0xd87593cb	0x44c24a3f	0x2e1b8c7c	0x658eb587
11	0x00000000	0x684c12d0	0x8a0f86ab	0xf61d64f2	0x44c24a3f	0x2e1b8c7c
12	0x00000000	0x58edacd8	0x684c12d0	0xe283e1aa	0xf61d64f2	0x44c24a3f
13	0x00000000	0xb30bc385	0x58edacd8	0x1a1304b4	0xe283e1aa	0xf61d64f2
14	0x00000000	0x6c1b94f3	0xb30bc385	0x163b6b36	0x1a1304b4	0xe283e1aa
15	0x00000240	0xda944324	0x6c1b94f3	0x6cc2f0e1	0x163b6b36	0x1a1304b4
16	0x00000001	0x4540dece	0xda944324	0xdb06e53c	0x6cc2f0e1	0x163b6b36
17	0x06f1582e	0x1e1208aa	0x4540dece	0x36a510c9	0xdb06e53c	0x6cc2f0e1
18	0x00000481	0x278cb636	0x1e1208aa	0x915037b3	0x36a510c9	0xdb06e53c
19	0x00000002	0x57d5367e	0x278cb636	0x8784822a	0x915037b3	0x36a510c9
20	0x0de2b05c	0xdf60803f	0x57d5367e	0x89e32d8d	0x8784822a	0x915037b3
21	0x00000902	0x45ecce2a	0xdf60803f	0x95f54d9f	0x89e32d8d	0x8784822a
22	0x00000004	0x776f1344	0x45ecce2a	0xf7d8200f	0x95f54d9f	0x89e32d8d
23	0x1bc56438	0x2a2689ae	0x776f1344	0x917b338a	0xf7d8200f	0x95f54d9f
24	0x00001206	0x5b6c81cc	0x2a2689ae	0x1ddbc4d1	0x917b338a	0xf7d8200f
25	0x0de2b054	0x88ab7484	0x5b6c81cc	0x8a89a26b	0x1ddbc4d1	0x917b338a
26	0x378ac172	0x198d58a4	0x88ab7484	0x16db2073	0x8a89a26b	0x1ddbc4d1
27	0x00002408	0xd35adf99	0x198d58a4	0x222add21	0x16db2073	0x8a89a26b
28	0x00000010	0x923c274c	0xd35adf99	0x06635629	0x222add21	0x16db2073
29	0x6f159460	0x3362de97	0x923c274c	0x74d6b7e6	0x06635629	0x222add21
30	0x0000481a	0xddeaaa45	0x3362de97	0x248f09d3	0x74d6b7e6	0x06635629
31	0x3a687c8c	0xd03667b3	0xddeaaa45	0xccd8b7a5	0x248f09d3	0x74d6b7e6
32	0xde2b05cc	0xfe65b400	0xd03667b3	0x777aaa91	0xccd8b7a5	0x248f09d3
33	0x162740c4	0xe1db30de	0xfe65b400	0xf40d99ec	0x777aaa91	0xccd8b7a5
34	0x00001246	0xf42b58e5	0xe1db30de	0x3f996d00	0xf40d99ec	0x777aaa91
35	0xbc565189	0x5265c8ab	0xf42b58e5	0xb876cc37	0x3f996d00	0xf40d99ec
36	0x378be118	0x5af175e1	0x5265c8ab	0x7d0ad639	0xb876cc37	0x3f996d00
37	0xe9a1d638	0x8d5dbda9	0x5af175e1	0xd499722a	0x7d0ad639	0xb876cc37
38	0x78ac1723	0x3f17561e	0x8d5dbda9	0x56bc5d78	0xd499722a	0x7d0ad639
39	0x378893f0	0x15d0ac8c	0x3f17561e	0x63576f6a	0x56bc5d78	0xd499722a
40	0x00000100	0x94e22102	0x15d0ac8c	0x8fc5d587	0x63576f6a	0x56bc5d78
41	0xc6d38776	0x50c5afaa	0x94e22102	0x05742b23	0x8fc5d587	0x63576f6a
42	0x000481a8	0x9111c43b	0x50c5afaa	0xa5388840	0x05742b23	0x8fc5d587
43	0xa687c1c3	0xed1686ba	0x9111c43b	0x94316bea	0xa5388840	0x05742b23
44	0xe2b05cc9	0xaf42e48f	0xed1686ba	0xe444710e	0x94316bea	0xa5388840
45	0x79b17ef9	0x7a76b9b4	0xaf42e48f	0xbb45a1ae	0xe444710e	0x94316bea
46	0x0001366c	0x216a774f	0x7a76b9b4	0xebd0b923	0xbb45a1ae	0xe444710e
47	0xf2efe6e3	0x8ef3b857	0x216a774f	0x1e9dae6d	0xebd0b923	0xbb45a1ae
48	0x4f34d0e7	0xa3e5f9d1	0x8ef3b857	0xc85a9dd3	0x1e9dae6d	0xebd0b923
49	0xd94740ae	0x5fcead38	0xa3e5f9d1	0xe3bcee15	0xc85a9dd3	0x1e9dae6d
50	0x8ac1282b	0x164d3850	0x5fcead38	0x68f97e74	0xe3bcee15	0xc85a9dd3
51	0x78892d2b	0x05a38010	0x164d3850	0x17f3ab4e	0x68f97e74	0xe3bcee15
52	0xe9a1d4b8	0x27e3bbfd	0x05a38010	0x05934e14	0x17f3ab4e	0x68f97e74
53	0x5ab22634	0x54f26b3c	0x27e3bbfd	0x0168e004	0x05934e14	0x17f3ab4e
54	0x00481ac8	0x4b88d490	0x54f26b3c	0x49f8eeff	0x0168e004	0x05934e14
55	0xd42a4dbb	0x1becd4f0	0x4b88d490	0x153c9acf	0x49f8eeff	0x0168e004
56	0x2b04ecf6	0x82dd06b8	0x1becd4f0	0x12e23524	0x153c9acf	0x49f8eeff
57	0x72b639a7	0xbb585176	0x82dd06b8	0x06fb353c	0x12e23524	0x153c9acf
58	0x78bf71e3	0x8b1d2da1	0xbb585176	0x20b741ae	0x06fb353c	0x12e23524
59	0x1976fdcf	0x4215f53e	0x8b1d2da1	0xaed6145d	0x20b741ae	0x06fb353c
60	0xf34d0f74	0x0ce626a0	0x4215f53e	0x62c74b68	0xaed6145d	0x20b741ae
61	0x52a79f9b	0x688b212b	0x0ce626a0	0x90857d4f	0x62c74b68	0xaed6145d
62	0xac160318	0x35570f3f	0x688b212b	0x033989a8	0x90857d4f	0x62c74b68
63	0x199fc904	0xece393f4	0x35570f3f	0xda22c84a	0x033989a8	0x90857d4f
64	0x78ad1743	0x5c5423e2	0xece393f4	0xcd55c3cf	0xda22c84a	0x033989a8
65	0xfedcae74	0x52920eae	0x5c5423e2	0x3b38e4fd	0xcd55c3cf	0xda22c84a
66	0x048088e8	0xa580eda2	0x52920eae	0x971508f8	0x3b38e4fd	0xcd55c3cf
67	0x87c1c326	0xce57dfca	0xa580eda2	0x94a483ab	0x971508f8	0x3b38e4fd
68	0xc8f0dee1	0x3fb9e5fe	0xce57dfca	0xa9603b68	0x94a483ab	0x971508f8
69	0xb17ef9f9	0xfdc6eb97	0x3fb9e5fe	0xb395f7f2	0xa9603b68	0x94a483ab
70	0x01366c00	0x3e674de4	0xfdc6eb97	0x8fee797f	0xb395f7f2	0xa9603b68
71	0xefe6c7f2	0xf250e6d1	0x3e674de4	0xff71bae5	0x8fee797f	0xb395f7f2
72	0x34d0e75f	0x4bdf09e3	0xf250e6d1	0x0f99d379	0xff71bae5	0x8fee797f
73	0x28540c39	0x013f1344	0x4bdf09e3	0x7c9439b4	0x0f99d379	0xff71bae5
74	0xc128631a	0xebb22b83	0x013f1344	0xd2f7c278	0x7c9439b4	0x0f99d379
75	0xf1808c5b	0xf11f7aaf	0xebb22b83	0x004fc4d1	0xd2f7c278	0x7c9439b4
76	0x7fffbd69	0x23f03c1b	0xf11f7aaf	0xfaec8ae0	0x004fc4d1	0xd2f7c278
77	0x76dd98f8	0x9dfbd548	0x23f03c1b	0xfc47deab	0xfaec8ae0	0x004fc4d1
78	0x481be800	0xf7a4800a	0x9dfbd548	0xc8fc0f06	0xfc47deab	0xfaec8ae0
79	0xeeb43bd6	0x51d38ecf	0xf7a4800a	0x277ef552	0xc8fc0f06	0xfc47deab

H0	H1	H2	H3	H4
0xa057df35	0x768e0d30	0x2106443d	0xc478561c	0x0b1f9edd

a0 57 df 35 76 8e 0d 30 21 06 44 3d c4 78 56 1c 0b 1f 9e dd

K XOR opad, H(K XOR ipad, text)

H(K XOR opad, H(K XOR ipad, text))

SHA-1 Details

input + padding

70 40 55 3d 36 2d 44 7d 01 0c 7f b8 ec bc 1b 28 2d 72 d5 aa 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c
5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c 5c
a0 57 df 35 76 8e 0d 30 21 06 44 3d c4 78 56 1c 0b 1f 9e dd 80 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02 a0

process M(1)

Details

t	W(t)	A	B	C	D	E
-	-	0x67452301	0xefcdab89	0x98badcfe	0x10325476	0xc3d2e1f0
0	0x7040553d	0x0ff4edf0	0x67452301	0x7bf36ae2	0x98badcfe	0x10325476
1	0x362d447d	0x9b7bcf8b	0x0ff4edf0	0x59d148c0	0x7bf36ae2	0x98badcfe
2	0x010c7fb8	0xdd971284	0x9b7bcf8b	0x03fd3b7c	0x59d148c0	0x7bf36ae2
3	0xecbc1b28	0xba0d5b86	0xdd971284	0xe6def3e2	0x03fd3b7c	0x59d148c0
4	0x2d72d5aa	0xea7044d2	0xba0d5b86	0x3765c4a1	0xe6def3e2	0x03fd3b7c
5	0x5c5c5c5c	0x7fbc8cae	0xea7044d2	0xae8356e1	0x3765c4a1	0xe6def3e2
6	0x5c5c5c5c	0x54552487	0x7fbc8cae	0xba9c1134	0xae8356e1	0x3765c4a1
7	0x5c5c5c5c	0x33887de5	0x54552487	0x9fef232b	0xba9c1134	0xae8356e1
8	0x5c5c5c5c	0x953f1aaf	0x33887de5	0xd5154921	0x9fef232b	0xba9c1134
9	0x5c5c5c5c	0xb6c58846	0x953f1aaf	0x4ce21f79	0xd5154921	0x9fef232b
10	0x5c5c5c5c	0x73a15d1f	0xb6c58846	0xe54fc6ab	0x4ce21f79	0xd5154921
11	0x5c5c5c5c	0xec875a3f	0x73a15d1f	0xadb16211	0xe54fc6ab	0x4ce21f79
12	0x5c5c5c5c	0x3a9c001c	0xec875a3f	0xdce85747	0xadb16211	0xe54fc6ab
13	0x5c5c5c5c	0xbd5f122e	0x3a9c001c	0xfb21d68f	0xdce85747	0xadb16211
14	0x5c5c5c5c	0x0ed2d52c	0xbd5f122e	0x0ea70007	0xfb21d68f	0xdce85747
15	0x5c5c5c5c	0xbc499744	0x0ed2d52c	0xaf57c48b	0x0ea70007	0xfb21d68f
16	0xe298550a	0xcfe751d4	0xbc499744	0x03b4b54b	0xaf57c48b	0x0ea70007
17	0xb522beab	0x1e4d48af	0xcfe751d4	0x2f1265d1	0x03b4b54b	0xaf57c48b
18	0x58fd5424	0x3b938e06	0x1e4d48af	0x33f9d475	0x2f1265d1	0x03b4b54b
19	0x1c489c44	0x204cf164	0x3b938e06	0xc793522b	0x33f9d475	0x2f1265d1
20	0x30a0d603	0xa8245c51	0x204cf164	0x8ee4e381	0xc793522b	0x33f9d475
21	0x094210f0	0x19dc9c09	0xa8245c51	0x08133c59	0x8ee4e381	0xc793522b
22	0x80298030	0x20fdc2a8	0x19dc9c09	0x6a091714	0x08133c59	0x8ee4e381
23	0xd9f914be	0x7336f028	0x20fdc2a8	0x46772702	0x6a091714	0x08133c59
24	0xd7b48bf5	0xc203abbb	0x7336f028	0x083f70aa	0x46772702	0x6a091714
25	0x6a167d36	0xc0ed9ee3	0xc203abbb	0x1ccdbc0a	0x083f70aa	0x46772702
26	0x02088135	0xabfed76b	0xc0ed9ee3	0xf080eaee	0x1ccdbc0a	0x083f70aa
27	0x97f82f63	0xbb8d412a	0xabfed76b	0xf03b67b8	0xf080eaee	0x1ccdbc0a
28	0xb56d566a	0x5e027da9	0xbb8d412a	0xeaffb5da	0xf03b67b8	0xf080eaee
29	0x1695238a	0xd789428c	0x5e027da9	0xaee3504a	0xeaffb5da	0xf03b67b8
30	0x522b4c0b	0xbc878937	0xd789428c	0x57809f6a	0xaee3504a	0xeaffb5da
31	0x0bd54047	0x258a9665	0xbc878937	0x35e250a3	0x57809f6a	0xaee3504a
32	0xf68952a2	0xa47ea22f	0x258a9665	0xef21e24d	0x35e250a3	0x57809f6a
33	0x22ae27a5	0x78261d2f	0xa47ea22f	0x4962a599	0xef21e24d	0x35e250a3
34	0xc30086aa	0x6ebe4ed8	0x78261d2f	0xe91fa88b	0x4962a599	0xef21e24d
35	0xe8f7e2ea	0xf7189c22	0x6ebe4ed8	0xde09874b	0xe91fa88b	0x4962a599
36	0x4e944ff8	0x438cc6a8	0xf7189c22	0x1baf93b6	0xde09874b	0xe91fa88b
37	0x0a5d42dc	0x06ae34ef	0x438cc6a8	0xbdc62708	0x1baf93b6	0xde09874b
38	0xda834a49	0xe312cd2b	0x06ae34ef	0x10e331aa	0xbdc62708	0x1baf93b6
39	0xed5ccc6f	0x85cb138f	0xe312cd2b	0xc1ab8d3b	0x10e331aa	0xbdc62708
40	0x52d0357c	0x1ab8187b	0x85cb138f	0xf8c4b34a	0xc1ab8d3b	0x10e331aa
41	0x0b867f72	0xc4541066	0x1ab8187b	0xe172c4e3	0xf8c4b34a	0xc1ab8d3b
42	0x32733b35	0x06ad228f	0xc4541066	0xc6ae061e	0xe172c4e3	0xf8c4b34a
43	0x7695b6fe	0x98907d6a	0x06ad228f	0xb1150419	0xc6ae061e	0xe172c4e3
44	0x44a855d7	0x4df38b08	0x98907d6a	0xc1ab48a3	0xb1150419	0xc6ae061e
45	0x4adc3448	0xf0a8a476	0x4df38b08	0xa6241f5a	0xc1ab48a3	0xb1150419
46	0x1169c43c	0x2c521f19	0xf0a8a476	0x137ce2c2	0xa6241f5a	0xc1ab48a3
47	0x011ffcb5	0x8e578bab	0x2c521f19	0xbc2a291d	0x137ce2c2	0xa6241f5a
48	0x5b0baa78	0x97b72738	0x8e578bab	0x4b1487c6	0xbc2a291d	0x137ce2c2
49	0xa16cfc03	0xc9010e42	0x97b72738	0xe395e2ea	0x4b1487c6	0xbc2a291d
50	0x7df01da5	0xaced73e1	0xc9010e42	0x25edc9ce	0xe395e2ea	0x4b1487c6
51	0x9e697961	0xf7ce0502	0xaced73e1	0xb2404390	0x25edc9ce	0xe395e2ea
52	0xe3a758ca	0xf506dcae	0xf7ce0502	0x6b3b5cf8	0xb2404390	0x25edc9ce
53	0xa05b4ebd	0xe98ab0d5	0xf506dcae	0xbdf38140	0x6b3b5cf8	0xb2404390
54	0x0ea784d0	0x7e8d7ce1	0xe98ab0d5	0xbd41b72b	0xbdf38140	0x6b3b5cf8
55	0x08c42ec4	0x928e9608	0x7e8d7ce1	0x7a62ac35	0xbd41b72b	0xbdf38140
56	0x37e7d519	0x550b9068	0x928e9608	0x5fa35f38	0x7a62ac35	0xbd41b72b
57	0xa5b162bf	0xee238208	0x550b9068	0x24a3a582	0x5fa35f38	0x7a62ac35
58	0x07debb06	0x2b70fa5c	0xee238208	0x1542e41a	0x24a3a582	0x5fa35f38
59	0x2b8e5d9d	0xac906940	0x2b70fa5c	0x3b88e082	0x1542e41a	0x24a3a582
60	0x27af573c	0xae7de56d	0xac906940	0x0adc3e97	0x3b88e082	0x1542e41a
61	0xd88c7a8d	0x25b38587	0xae7de56d	0x2b241a50	0x0adc3e97	0x3b88e082
62	0xde976e12	0x2a7982f8	0x25b38587	0x6b9f795b	0x2b241a50	0x0adc3e97
63	0x1e30f29d	0xa7a9389b	0x2a7982f8	0xc96ce161	0x6b9f795b	0x2b241a50
64	0x93203093	0x06583aef	0xa7a9389b	0x0a9e60be	0xc96ce161	0x6b9f795b
65	0x8847139e	0xedac65f3	0x06583aef	0xe9ea4e26	0x0a9e60be	0xc96ce161
66	0x0f7219e9	0x3dfa9014	0xedac65f3	0xc1960ebb	0xe9ea4e26	0x0a9e60be
67	0x0d38b5a5	0x675c002e	0x3dfa9014	0xfb6b197c	0xc1960ebb	0xe9ea4e26
68	0x85d13170	0x2ca5cf0b	0x675c002e	0x0f7ea405	0xfb6b197c	0xc1960ebb
69	0xfec2063a	0xb2be7587	0x2ca5cf0b	0x99d7000b	0x0f7ea405	0xfb6b197c
70	0xd5df14fd	0xad880c4a	0xb2be7587	0xcb2973c2	0x99d7000b	0x0f7ea405
71	0x6d291f2c	0xd84c14aa	0xad880c4a	0xecaf9d61	0xcb2973c2	0x99d7000b
72	0xbbb6b16c	0xb381eb91	0xd84c14aa	0xab620312	0xecaf9d61	0xcb2973c2
73	0xa74e7083	0x4c99a32a	0xb381eb91	0xb613052a	0xab620312	0xecaf9d61
74	0x8455d5fe	0x7d8d8827	0x4c99a32a	0x6ce07ae4	0xb613052a	0xab620312
75	0x8b1847b2	0x48f8ee6d	0x7d8d8827	0x932668ca	0x6ce07ae4	0xb613052a
76	0xb74ef1bb	0xd92e206d	0x48f8ee6d	0xdf636209	0x932668ca	0x6ce07ae4
77	0x7856b7a9	0xda1be6cc	0xd92e206d	0x523e3b9b	0xdf636209	0x932668ca
78	0x26e01b9c	0x1c5999d6	0xda1be6cc	0x764b881b	0x523e3b9b	0xdf636209
79	0x98201f28	0xcb87d316	0x1c5999d6	0x3686f9b3	0x764b881b	0x523e3b9b

H0	H1	H2	H3	H4
0x32ccf617	0x0c27455f	0xcf41d6b1	0x867ddc91	0x16111d8b

process M(2)

Details

t	W(t)	A	B	C	D	E
-	-	0x32ccf617	0x0c27455f	0xcf41d6b1	0x867ddc91	0x16111d8b
0	0xa057df35	0xf8e415d0	0x32ccf617	0xc309d157	0xcf41d6b1	0x867ddc91
1	0x768e0d30	0x431aee30	0xf8e415d0	0xccb33d85	0xc309d157	0xcf41d6b1
2	0x2106443d	0x79d23016	0x431aee30	0x3e390574	0xccb33d85	0xc309d157
3	0xc478561c	0xab03b990	0x79d23016	0x10c6bb8c	0x3e390574	0xccb33d85
4	0x0b1f9edd	0xa9b7bd74	0xab03b990	0x9e748c05	0x10c6bb8c	0x3e390574
5	0x80000000	0xea77b7ae	0xa9b7bd74	0x2ac0ee64	0x9e748c05	0x10c6bb8c
6	0x00000000	0xf900d767	0xea77b7ae	0x2a6def5d	0x2ac0ee64	0x9e748c05
7	0x00000000	0x43f7e1e9	0xf900d767	0xba9dedeb	0x2a6def5d	0x2ac0ee64
8	0x00000000	0xbead92a0	0x43f7e1e9	0xfe4035d9	0xba9dedeb	0x2a6def5d
9	0x00000000	0x54eaead8	0xbead92a0	0x50fdf87a	0xfe4035d9	0xba9dedeb
10	0x00000000	0x036b7807	0x54eaead8	0x2fab64a8	0x50fdf87a	0xfe4035d9
11	0x00000000	0xcaf120fc	0x036b7807	0x153abab6	0x2fab64a8	0x50fdf87a
12	0x00000000	0x374ece5a	0xcaf120fc	0xc0dade01	0x153abab6	0x2fab64a8
13	0x00000000	0x49e24389	0x374ece5a	0x32bc483f	0xc0dade01	0x153abab6
14	0x00000000	0x9ea1fd93	0x49e24389	0x8dd3b396	0x32bc483f	0xc0dade01
15	0x000002a0	0x2b7b1863	0x9ea1fd93	0x527890e2	0x8dd3b396	0x32bc483f
16	0x02a33611	0x12b796d4	0x2b7b1863	0xe7a87f64	0x527890e2	0x8dd3b396
17	0x65ecb659	0x185e56ea	0x12b796d4	0xcadec618	0xe7a87f64	0x527890e2
18	0x5433b080	0xf498876e	0x185e56ea	0x04ade5b5	0xcadec618	0xe7a87f64
19	0x8db6c01a	0x257f6ba5	0xf498876e	0x861795ba	0x04ade5b5	0xcadec618
20	0xdde65108	0x3daf6ec6	0x257f6ba5	0xbd2621db	0x861795ba	0x04ade5b5
21	0xa8676101	0xf02beae2	0x3daf6ec6	0x495fdae9	0xbd2621db	0x861795ba
22	0x1b6d8035	0xdfb2f3e2	0xf02beae2	0x8f6bdbb1	0x495fdae9	0xbd2621db
23	0xbbcca751	0x144b1ce2	0xdfb2f3e2	0xbc0afab8	0x8f6bdbb1	0x495fdae9
24	0x5588ae21	0x83f9e3d8	0x144b1ce2	0xb7ecbcf8	0xbc0afab8	0x8f6bdbb1
25	0xfd026cd8	0x9a3209dc	0x83f9e3d8	0x8512c738	0xb7ecbcf8	0xbc0afab8
26	0xdffe2fa3	0x022be9a7	0x9a3209dc	0x20fe78f6	0x8512c738	0xb7ecbcf8
27	0xb07cdc77	0x5c9f7002	0x022be9a7	0x268c8277	0x20fe78f6	0x8512c738
28	0x41c87ba0	0xcdfc41ea	0x5c9f7002	0xc08afa69	0x268c8277	0x20fe78f6
29	0xef329804	0xf92c4210	0xcdfc41ea	0x9727dc00	0xc08afa69	0x268c8277
30	0x5364d4a7	0xa8a4ec61	0xf92c4210	0xb37f107a	0x9727dc00	0xc08afa69
31	0x3fd0d011	0x6147d0ba	0xa8a4ec61	0x3e4b1084	0xb37f107a	0x9727dc00
32	0xd8556169	0x2ce22cf5	0x6147d0ba	0x6a293b18	0x3e4b1084	0xb37f107a
33	0x8c799c78	0x803e325e	0x2ce22cf5	0x9851f42e	0x6a293b18	0x3e4b1084
34	0xd3f63c74	0x677c682c	0x803e325e	0x4b388b3d	0x9851f42e	0x6a293b18
35	0x9bf0380a	0xb7d7b19c	0x677c682c	0xa00f8c97	0x4b388b3d	0x9851f42e
36	0x16746dca	0xa4e1f0b5	0xb7d7b19c	0x19df1a0b	0xa00f8c97	0x4b388b3d
37	0x5edec440	0xc33678d2	0xa4e1f0b5	0x2df5ec67	0x19df1a0b	0xa00f8c97
38	0x0ce38573	0x13671edc	0xc33678d2	0x69387c2d	0x2df5ec67	0x19df1a0b
39	0xded4eca4	0x5c6db66a	0x13671edc	0xb0cd9e34	0x69387c2d	0x2df5ec67
40	0x19fa4956	0x962fde20	0x5c6db66a	0x04d9c7b7	0xb0cd9e34	0x69387c2d
41	0x9bc95349	0x6ee6e69a	0x962fde20	0x971b6d9a	0x04d9c7b7	0xb0cd9e34
42	0x262909a7	0xd90b07b6	0x6ee6e69a	0x258bf788	0x971b6d9a	0x04d9c7b7
43	0xba886a5f	0x976acd67	0xd90b07b6	0x9bb9b9a6	0x258bf788	0x971b6d9a
44	0x3e232309	0xeb3fb217	0x976acd67	0xb642c1ed	0x9bb9b9a6	0x258bf788
45	0x502b0be5	0x0433cd2d	0xeb3fb217	0xe5dab359	0xb642c1ed	0x9bb9b9a6
46	0x7ab4b5c4	0x135e8543	0x0433cd2d	0xfacfec85	0xe5dab359	0xb642c1ed
47	0xa6bd0788	0x3cc81bc0	0x135e8543	0x410cf34b	0xfacfec85	0xe5dab359
48	0x84e43f5c	0xe62d0cdb	0x3cc81bc0	0xc4d7a150	0x410cf34b	0xfacfec85
49	0xede885ff	0x82427e1c	0xe62d0cdb	0x0f3206f0	0xc4d7a150	0x410cf34b
50	0x8a2cbf22	0x68dc37a9	0x82427e1c	0xf98b4336	0x0f3206f0	0xc4d7a150
51	0xf6855293	0xf101ec20	0x68dc37a9	0x20909f87	0xf98b4336	0x0f3206f0
52	0x92b89c9f	0xb9dbfc30	0xf101ec20	0x5a370dea	0x20909f87	0xf98b4336
53	0xb41b3846	0xe8534c11	0xb9dbfc30	0x3c407b08	0x5a370dea	0x20909f87
54	0x325056e5	0x24b9b2ad	0xe8534c11	0x2e76ff0c	0x3c407b08	0x5a370dea
55	0xe23049f4	0x8f0be966	0x24b9b2ad	0x7a14d304	0x2e76ff0c	0x3c407b08
56	0x1e588fd6	0xf966e797	0x8f0be966	0x492e6cab	0x7a14d304	0x2e76ff0c
57	0xfdf3d419	0x33726c26	0xf966e797	0xa3c2fa59	0x492e6cab	0x7a14d304
58	0xe02db8f0	0x4112bc31	0x33726c26	0xfe59b9e5	0xa3c2fa59	0x492e6cab
59	0x04fd79fe	0xb2f22212	0x4112bc31	0x8cdc9b09	0xfe59b9e5	0xa3c2fa59
60	0x57b9bc96	0x57bb59f8	0xb2f22212	0x5044af0c	0x8cdc9b09	0xfe59b9e5
61	0x454119b7	0x73d2ea93	0x57bb59f8	0xacbc8884	0x5044af0c	0x8cdc9b09
62	0x91fb4b07	0x0edb78c4	0x73d2ea93	0x15eed67e	0xacbc8884	0x5044af0c
63	0xfdb8ee2b	0xbe502bf7	0x0edb78c4	0xdcf4baa4	0x15eed67e	0xacbc8884
64	0xaba22c3e	0xb48809ad	0xbe502bf7	0x03b6de31	0xdcf4baa4	0x15eed67e
65	0xeeca90e4	0xc12fae50	0xb48809ad	0xef940afd	0x03b6de31	0xdcf4baa4
66	0x0a02eacc	0x2ffb0ebf	0xc12fae50	0x6d22026b	0xef940afd	0x03b6de31
67	0xdb827e2b	0xec979cdd	0x2ffb0ebf	0x304beb94	0x6d22026b	0xef940afd
68	0x3337cc10	0xf2b51be0	0xec979cdd	0xcbfec3af	0x304beb94	0x6d22026b
69	0x32d10592	0xd81bfad7	0xf2b51be0	0x7b25e737	0xcbfec3af	0x304beb94
70	0xcce3d83e	0x0d80201b	0xd81bfad7	0x3cad46f8	0x7b25e737	0xcbfec3af
71	0xa2997fad	0x889263ab	0x0d80201b	0xf606feb5	0x3cad46f8	0x7b25e737
72	0xce0c3d14	0xed0cf3e8	0x889263ab	0xc3600806	0xf606feb5	0x3cad46f8
73	0xb64fca7b	0x1cf2e57e	0xed0cf3e8	0xe22498ea	0xc3600806	0xf606feb5
74	0x3e1f220e	0x692df560	0x1cf2e57e	0x3b433cfa	0xe22498ea	0xc3600806
75	0xa86446ec	0x217afe43	0x692df560	0x873cb95f	0x3b433cfa	0xe22498ea
76	0x8675e3f4	0x37af77dd	0x217afe43	0x1a4b7d58	0x873cb95f	0x3b433cfa
77	0x686fa001	0x2011d4bb	0x37af77dd	0xc85ebf90	0x1a4b7d58	0x873cb95f
78	0xbdbdf3d6	0xf752bb84	0x2011d4bb	0x4debddf7	0xc85ebf90	0x1a4b7d58
79	0x6f3dc52c	0xe3e82bd4	0xf752bb84	0xc804752e	0x4debddf7	0xc85ebf90

H0	H1	H2	H3	H4
0x16b521eb	0x037a00e3	0x97464bdf	0xd469ba88	0xde6fdd1b

16 b5 21 eb 03 7a 00 e3 97 46 4b df d4 69 ba 88 de 6f dd 1b

Sbits = DT(HS)

Details

OffsetBits = low-order 4 bits of HS[19]	b
Offset = StToNum(OffsetBits)	11
P = HS[OffSet]...HS[OffSet+3]	df d4 69 ba
Last 31 bits of P	5f d4 69 ba

5f d4 69 ba

Snum = StToNum(Sbits)

1607756218

D = Snum mod 10^Digit

756218

Step-by-Step TOTP

Inputs

TOTP Code

Intermediate values

References