Step-by-Step TOTP

K (Base32-decoded)

63 82 7e be 6e f0 60 e1 bf aa c3 53 80 9c 88 64 6a e2 c1 c2

C (converted to bytes)

00 00 00 00 03 76 de 3f

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

Details

key

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

63 82 7e be 6e f0 60 e1 bf aa c3 53 80 9c 88 64 6a e2 c1 c2

K XOR ipad

55 b4 48 88 58 c6 56 d7 89 9c f5 65 b6 aa be 52 5c d4 f7 f4 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

3f de 22 e2 32 ac 3c bd e3 f6 9f 0f dc c0 d4 38 36 be 9d 9e 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

55 b4 48 88 58 c6 56 d7 89 9c f5 65 b6 aa be 52 5c d4 f7 f4 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 76 de 3f

H(K XOR ipad, text)

SHA-1 Details

input + padding

55 b4 48 88 58 c6 56 d7 89 9c f5 65 b6 aa be 52 5c d4 f7 f4 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 76 de 3f 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	0x55b44888	0xf568e13b	0x67452301	0x7bf36ae2	0x98badcfe	0x10325476
1	0x58c656d7	0x6c934b62	0xf568e13b	0x59d148c0	0x7bf36ae2	0x98badcfe
2	0x899cf565	0x6b170309	0x6c934b62	0xfd5a384e	0x59d148c0	0x7bf36ae2
3	0xb6aabe52	0x6d530cbc	0x6b170309	0x9b24d2d8	0xfd5a384e	0x59d148c0
4	0x5cd4f7f4	0x5ad68c28	0x6d530cbc	0x5ac5c0c2	0x9b24d2d8	0xfd5a384e
5	0x36363636	0xc34a3fe8	0x5ad68c28	0x1b54c32f	0x5ac5c0c2	0x9b24d2d8
6	0x36363636	0xaf7b40a9	0xc34a3fe8	0x16b5a30a	0x1b54c32f	0x5ac5c0c2
7	0x36363636	0xf4fb68d5	0xaf7b40a9	0x30d28ffa	0x16b5a30a	0x1b54c32f
8	0x36363636	0x7c513166	0xf4fb68d5	0x6bded02a	0x30d28ffa	0x16b5a30a
9	0x36363636	0x926f46d2	0x7c513166	0x7d3eda35	0x6bded02a	0x30d28ffa
10	0x36363636	0x8f12ea47	0x926f46d2	0x9f144c59	0x7d3eda35	0x6bded02a
11	0x36363636	0xde09a55f	0x8f12ea47	0xa49bd1b4	0x9f144c59	0x7d3eda35
12	0x36363636	0x6342fa1b	0xde09a55f	0xe3c4ba91	0xa49bd1b4	0x9f144c59
13	0x36363636	0x7abf3045	0x6342fa1b	0xf7826957	0xe3c4ba91	0xa49bd1b4
14	0x36363636	0x70c0f2c5	0x7abf3045	0xd8d0be86	0xf7826957	0xe3c4ba91
15	0x36363636	0x6a2c3c24	0x70c0f2c5	0x5eafcc11	0xd8d0be86	0xf7826957
16	0xb8517bdb	0x286eaf5b	0x6a2c3c24	0x5c303cb1	0x5eafcc11	0xd8d0be86
17	0xdcd9d10b	0x7aa6f0c0	0x286eaf5b	0x1a8b0f09	0x5c303cb1	0x5eafcc11
18	0xaa900523	0x14ba8285	0x7aa6f0c0	0xca1babd6	0x1a8b0f09	0x5c303cb1
19	0x1df78b12	0xb60641c7	0x14ba8285	0x1ea9bc30	0xca1babd6	0x1a8b0f09
20	0x001a4dff	0x0a501702	0xb60641c7	0x452ea0a1	0x1ea9bc30	0xca1babd6
21	0x394c662b	0xa9c63b39	0x0a501702	0xed819071	0x452ea0a1	0x1ea9bc30
22	0x57837a48	0xc0cdb120	0xa9c63b39	0x829405c0	0xed819071	0x452ea0a1
23	0x6c58f792	0x00eb5674	0xc0cdb120	0x6a718ece	0x829405c0	0xed819071
24	0x023a3be1	0xa428c0a1	0x00eb5674	0x30336c48	0x6a718ece	0x829405c0
25	0x16b55687	0xe7e5110e	0xa428c0a1	0x003ad59d	0x30336c48	0x6a718ece
26	0x8d91e563	0xf7a0fb22	0xe7e5110e	0x690a3028	0x003ad59d	0x30336c48
27	0x3f9b61e6	0x619e12e8	0xf7a0fb22	0xb9f94443	0x690a3028	0x003ad59d
28	0x2d5e36f0	0xf788e483	0x619e12e8	0xbde83ec8	0xb9f94443	0x690a3028
29	0x69bb0691	0x984b1b3b	0xf788e483	0x186784ba	0xbde83ec8	0xb9f94443
30	0xccfeac87	0x513ca2cf	0x984b1b3b	0xfde23920	0x186784ba	0xbde83ec8
31	0x57d24cbf	0x29f777b3	0x513ca2cf	0xe612c6ce	0xfde23920	0x186784ba
32	0xf2808710	0x037d4af1	0x29f777b3	0xd44f28b3	0xe612c6ce	0xfde23920
33	0x36cb4032	0x2edb5ce1	0x037d4af1	0xca7dddec	0xd44f28b3	0xe612c6ce
34	0xe193c200	0x2f3bd042	0x2edb5ce1	0x40df52bc	0xca7dddec	0xd44f28b3
35	0xd340179f	0xa25d07e9	0x2f3bd042	0x4bb6d738	0x40df52bc	0xca7dddec
36	0x981882ea	0x41639f71	0xa25d07e9	0x8bcef410	0x4bb6d738	0x40df52bc
37	0xba78aa51	0xf8cafb97	0x41639f71	0x689741fa	0x8bcef410	0x4bb6d738
38	0x940ff562	0x0a3a55d5	0xf8cafb97	0x5058e7dc	0x689741fa	0x8bcef410
39	0x6a4ede81	0x6c47d684	0x0a3a55d5	0xfe32bee5	0x5058e7dc	0x689741fa
40	0x8ea7e787	0x6990aebf	0x6c47d684	0x428e9575	0xfe32bee5	0x5058e7dc
41	0x17d50463	0x976617ed	0x6990aebf	0x1b11f5a1	0x428e9575	0xfe32bee5
42	0x56259e24	0x1bc7cd4c	0x976617ed	0xda642baf	0x1b11f5a1	0x428e9575
43	0x178f2ede	0xfd97625f	0x1bc7cd4c	0x65d985fb	0xda642baf	0x1b11f5a1
44	0xdcda39fc	0x95b9c667	0xfd97625f	0x06f1f353	0x65d985fb	0xda642baf
45	0xa468fcb7	0x2af3958f	0x95b9c667	0xff65d897	0x06f1f353	0x65d985fb
46	0x7bfde057	0x6757a76a	0x2af3958f	0xe56e7199	0xff65d897	0x06f1f353
47	0xaf1bd7e1	0x1f8646fb	0x6757a76a	0xcabce563	0xe56e7199	0xff65d897
48	0x73b8bc40	0xda821681	0x1f8646fb	0x99d5e9da	0xcabce563	0xe56e7199
49	0x13476733	0x73a94bde	0xda821681	0xc7e191be	0x99d5e9da	0xcabce563
50	0x016a125f	0xac2dc206	0x73a94bde	0x76a085a0	0xc7e191be	0x99d5e9da
51	0x1a1e5ea0	0x4069c7e9	0xac2dc206	0x9cea52f7	0x76a085a0	0xc7e191be
52	0x8714528f	0xa7f360f7	0x4069c7e9	0xab0b7081	0x9cea52f7	0x76a085a0
53	0xea693470	0x76fce8c1	0xa7f360f7	0x501a71fa	0xab0b7081	0x9cea52f7
54	0xf6975824	0xa555f118	0x76fce8c1	0xe9fcd83d	0x501a71fa	0xab0b7081
55	0xab28bf18	0x010b0882	0xa555f118	0x5dbf3a30	0xe9fcd83d	0x501a71fa
56	0x82a7e326	0x713d1a74	0x010b0882	0x29557c46	0x5dbf3a30	0xe9fcd83d
57	0xcb142b55	0x74ef46fe	0x713d1a74	0x8042c220	0x29557c46	0x5dbf3a30
58	0x417a153e	0xed93467c	0x74ef46fe	0x1c4f469d	0x8042c220	0x29557c46
59	0x56bcdfde	0xd5e62f59	0xed93467c	0x9d3bd1bf	0x1c4f469d	0x8042c220
60	0xd64f40e3	0x4aa28171	0xd5e62f59	0x3b64d19f	0x9d3bd1bf	0x1c4f469d
61	0x40c01431	0xef7b7a46	0x4aa28171	0x75798bd6	0x3b64d19f	0x9d3bd1bf
62	0x50ddb7db	0xacab6f85	0xef7b7a46	0x52a8a05c	0x75798bd6	0x3b64d19f
63	0x82769e53	0xe6567449	0xacab6f85	0xbbdede91	0x52a8a05c	0x75798bd6
64	0x616ab211	0xb1f29a41	0xe6567449	0x6b2adbe1	0xbbdede91	0x52a8a05c
65	0x25214a3b	0xb72265dc	0xb1f29a41	0x79959d12	0x6b2adbe1	0xbbdede91
66	0x8ae5977a	0x98c1d029	0xb72265dc	0x6c7ca690	0x79959d12	0x6b2adbe1
67	0x8f420e3f	0x7fd50f87	0x98c1d029	0x2dc89977	0x6c7ca690	0x79959d12
68	0x05da00e7	0x1dea408c	0x7fd50f87	0x6630740a	0x2dc89977	0x6c7ca690
69	0x16c81047	0x3f1d6d2a	0x1dea408c	0xdff543e1	0x6630740a	0x2dc89977
70	0x575e05cd	0xd7667dc8	0x3f1d6d2a	0x077a9023	0xdff543e1	0x6630740a
71	0xcf2015f3	0xd415c3d5	0xd7667dc8	0x8fc75b4a	0x077a9023	0xdff543e1
72	0x68fea89d	0xf5eadfaf	0xd415c3d5	0x35d99f72	0x8fc75b4a	0x077a9023
73	0xdfaf76fb	0xdcf3c6df	0xf5eadfaf	0x750570f5	0x35d99f72	0x8fc75b4a
74	0xa5e1aea9	0x53bad7ec	0xdcf3c6df	0xfd7ab7eb	0x750570f5	0x35d99f72
75	0xe380da9b	0xafa43b2e	0x53bad7ec	0xf73cf1b7	0xfd7ab7eb	0x750570f5
76	0xb9cf0248	0x47bb2c98	0xafa43b2e	0x14eeb5fb	0xf73cf1b7	0xfd7ab7eb
77	0xe33e6918	0xeef7f543	0x47bb2c98	0xabe90ecb	0x14eeb5fb	0xf73cf1b7
78	0x0ad3b539	0xa42ea8eb	0xeef7f543	0x11eecb26	0xabe90ecb	0x14eeb5fb
79	0xa37187a7	0x5d884d9a	0xa42ea8eb	0xfbbdfd50	0x11eecb26	0xabe90ecb

H0	H1	H2	H3	H4
0xc4cd709b	0x93fc5474	0x9478da4e	0x22211f9c	0x6fbbf0bb

process M(2)

Details

t	W(t)	A	B	C	D	E
-	-	0xc4cd709b	0x93fc5474	0x9478da4e	0x22211f9c	0x6fbbf0bb
0	0x00000000	0x1465d998	0xc4cd709b	0x24ff151d	0x9478da4e	0x22211f9c
1	0x0376de3f	0x21d344d3	0x1465d998	0xf1335c26	0x24ff151d	0x9478da4e
2	0x80000000	0xda1f4a50	0x21d344d3	0x05197666	0xf1335c26	0x24ff151d
3	0x00000000	0x949c3537	0xda1f4a50	0xc874d134	0x05197666	0xf1335c26
4	0x00000000	0xac50f0e7	0x949c3537	0x3687d294	0xc874d134	0x05197666
5	0x00000000	0x469edd08	0xac50f0e7	0xe5270d4d	0x3687d294	0xc874d134
6	0x00000000	0xad59ee2a	0x469edd08	0xeb143c39	0xe5270d4d	0x3687d294
7	0x00000000	0x1f7d2dcf	0xad59ee2a	0x11a7b742	0xeb143c39	0xe5270d4d
8	0x00000000	0x7254f6dc	0x1f7d2dcf	0xab567b8a	0x11a7b742	0xeb143c39
9	0x00000000	0x9c0c4cea	0x7254f6dc	0xc7df4b73	0xab567b8a	0x11a7b742
10	0x00000000	0xb90a1980	0x9c0c4cea	0x1c953db7	0xc7df4b73	0xab567b8a
11	0x00000000	0x86f334ed	0xb90a1980	0xa703133a	0x1c953db7	0xc7df4b73
12	0x00000000	0xa65f97f3	0x86f334ed	0x2e428660	0xa703133a	0x1c953db7
13	0x00000000	0x6a4cbd36	0xa65f97f3	0x61bccd3b	0x2e428660	0xa703133a
14	0x00000000	0x7339b8d3	0x6a4cbd36	0xe997e5fc	0x61bccd3b	0x2e428660
15	0x00000240	0x59b101e4	0x7339b8d3	0x9a932f4d	0xe997e5fc	0x61bccd3b
16	0x00000001	0x8cf6f0cd	0x59b101e4	0xdcce6e34	0x9a932f4d	0xe997e5fc
17	0x06edbc7e	0xc46863f1	0x8cf6f0cd	0x166c4079	0xdcce6e34	0x9a932f4d
18	0x00000481	0xd68e7a18	0xc46863f1	0x633dbc33	0x166c4079	0xdcce6e34
19	0x00000002	0x5b4c4b22	0xd68e7a18	0x711a18fc	0x633dbc33	0x166c4079
20	0x0ddb78fc	0xc154e838	0x5b4c4b22	0x35a39e86	0x711a18fc	0x633dbc33
21	0x00000902	0x1caa8546	0xc154e838	0x96d312c8	0x35a39e86	0x711a18fc
22	0x00000004	0xd76911da	0x1caa8546	0x30553a0e	0x96d312c8	0x35a39e86
23	0x1bb6f578	0x67836879	0xd76911da	0x872aa151	0x30553a0e	0x96d312c8
24	0x00001206	0x5630aa20	0x67836879	0xb5da4476	0x872aa151	0x30553a0e
25	0x0ddb78f4	0xc893700b	0x5630aa20	0x59e0da1e	0xb5da4476	0x872aa151
26	0x376de3f2	0xf9eaa6a5	0xc893700b	0x158c2a88	0x59e0da1e	0xb5da4476
27	0x00002408	0xe708a97b	0xf9eaa6a5	0xf224dc02	0x158c2a88	0x59e0da1e
28	0x00000010	0xc812457a	0xe708a97b	0x7e7aa9a9	0xf224dc02	0x158c2a88
29	0x6edbd160	0x60e173b2	0xc812457a	0xf9c22a5e	0x7e7aa9a9	0xf224dc02
30	0x0000481a	0xccd84c96	0x60e173b2	0xb204915e	0xf9c22a5e	0x7e7aa9a9
31	0x3ab696ac	0xee3c8781	0xccd84c96	0x98385cec	0xb204915e	0xf9c22a5e
32	0xddb78fcc	0xf4c9172c	0xee3c8781	0xb3361325	0x98385cec	0xb204915e
33	0x166d1924	0x95a14409	0xf4c9172c	0x7b8f21e0	0xb3361325	0x98385cec
34	0x00001246	0xf7ab01ee	0x95a14409	0x3d3245cb	0x7b8f21e0	0xb3361325
35	0xbb6f4589	0xa5fba24f	0xf7ab01ee	0x65685102	0x3d3245cb	0x7b8f21e0
36	0x376cc398	0x913b3034	0xa5fba24f	0xbdeac07b	0x65685102	0x3d3245cb
37	0xeada7eb8	0x3bc5e9ec	0x913b3034	0xe97ee893	0xbdeac07b	0x65685102
38	0x76de3f23	0x898cd229	0x3bc5e9ec	0x244ecc0d	0xe97ee893	0xbdeac07b
39	0x376fb170	0x8cc4702f	0x898cd229	0x0ef17a7b	0x244ecc0d	0xe97ee893
40	0x00000100	0x1df58689	0x8cc4702f	0x6263348a	0x0ef17a7b	0x244ecc0d
41	0xdad0f5f6	0x5bcdc02d	0x1df58689	0xe3311c0b	0x6263348a	0x0ef17a7b
42	0x000481a8	0x7b3ad335	0x5bcdc02d	0x477d61a2	0xe3311c0b	0x6263348a
43	0xab6963c3	0x47bffc03	0x7b3ad335	0x56f3700b	0x477d61a2	0xe3311c0b
44	0xdb78fcc9	0x9d40c73b	0x47bffc03	0x5eceb4cd	0x56f3700b	0x477d61a2
45	0x7d6771b9	0x53196bb5	0x9d40c73b	0xd1efff00	0x5eceb4cd	0x56f3700b
46	0x0001366c	0x270cd106	0x53196bb5	0xe75031ce	0xd1efff00	0x5eceb4cd
47	0x81998463	0x24779254	0x270cd106	0x54c65aed	0xe75031ce	0xd1efff00
48	0x41a1da67	0x98e43295	0x24779254	0x89c33441	0x54c65aed	0xe75031ce
49	0xefa73e6e	0x87609210	0x98e43295	0x091de495	0x89c33441	0x54c65aed
50	0x6de3a82b	0xc79d3699	0x87609210	0x66390ca5	0x091de495	0x89c33441
51	0x76fb052b	0x8aba4e15	0xc79d3699	0x21d82484	0x66390ca5	0x091de495
52	0xeada7c38	0x41f704df	0x8aba4e15	0x71e74da6	0x21d82484	0x66390ca5
53	0x9a622cb5	0xf091dea2	0x41f704df	0x62ae9385	0x71e74da6	0x21d82484
54	0x00481ac8	0x255ed60d	0xf091dea2	0xd07dc137	0x62ae9385	0x71e74da6
55	0x0df979bb	0xab951988	0x255ed60d	0xbc2477a8	0xd07dc137	0x62ae9385
56	0xb78eecf5	0xd0794598	0xab951988	0x4957b583	0xbc2477a8	0xd07dc137
57	0x3cad6527	0x5484cbdc	0xd0794598	0x2ae54662	0x4957b583	0xbc2477a8
58	0x76cd59e3	0x9b1c4f73	0x5484cbdc	0x341e5166	0x2ae54662	0x4957b583
59	0x2ef7f748	0x9f799b80	0x9b1c4f73	0x152132f7	0x341e5166	0x2ae54662
60	0x1a1da774	0xb8bc4ca1	0x9f799b80	0xe6c713dc	0x152132f7	0x341e5166
61	0x20a30118	0xa34d6336	0xb8bc4ca1	0x27de66e0	0xe6c713dc	0x152132f7
62	0xde3e0316	0xa1139854	0xa34d6336	0x6e2f1328	0x27de66e0	0xe6c713dc
63	0xf3b4c984	0xb20dc0c8	0xa1139854	0xa8d358cd	0x6e2f1328	0x27de66e0
64	0x76df3f43	0x12c854c0	0xb20dc0c8	0x2844e615	0xa8d358cd	0x6e2f1328
65	0xf79ebae8	0xbbd5a5f8	0x12c854c0	0x2c837032	0x2844e615	0xa8d358cd
66	0x048088e8	0x087b2589	0xbbd5a5f8	0x04b21530	0x2c837032	0x2844e615
67	0x6963c32b	0xff54dd31	0x087b2589	0x2ef5697e	0x04b21530	0x2c837032
68	0x0e22f6d8	0x11e128e6	0xff54dd31	0x421ec962	0x2ef5697e	0x04b21530
69	0x6771b9fd	0x066b2af2	0x11e128e6	0x7fd5374c	0x421ec962	0x2ef5697e
70	0x01366c00	0xf41ecc5c	0x066b2af2	0x84784a39	0x7fd5374c	0x421ec962
71	0x99844781	0x27a5b5de	0xf41ecc5c	0x819acabc	0x84784a39	0x7fd5374c
72	0xa1da6751	0xd2c56910	0x27a5b5de	0x3d07b317	0x819acabc	0x84784a39
73	0xc9e4890f	0x0ca583ad	0xd2c56910	0x89e96d77	0x3d07b317	0x819acabc
74	0xe3a863fd	0x2a821da0	0x0ca583ad	0x34b15a44	0x89e96d77	0x3d07b317
75	0x8ddaa455	0x978681e5	0x2a821da0	0x432960eb	0x34b15a44	0x89e96d77
76	0x07cbb76a	0xaa024a78	0x978681e5	0x0aa08768	0x432960eb	0x34b15a44
77	0xaf9c2538	0xcd08f6cd	0xaa024a78	0x65e1a079	0x0aa08768	0x432960eb
78	0x481be800	0xbc0a51e3	0xcd08f6cd	0x2a80929e	0x65e1a079	0x0aa08768
79	0x34cb070f	0x0d8250ee	0xbc0a51e3	0x73423db3	0x2a80929e	0x65e1a079

H0	H1	H2	H3	H4
0xd24fc189	0x5006a657	0x07bb1801	0x4ca1b23a	0xd59d9134

d2 4f c1 89 50 06 a6 57 07 bb 18 01 4c a1 b2 3a d5 9d 91 34

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

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

SHA-1 Details

input + padding

3f de 22 e2 32 ac 3c bd e3 f6 9f 0f dc c0 d4 38 36 be 9d 9e 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
d2 4f c1 89 50 06 a6 57 07 bb 18 01 4c a1 b2 3a d5 9d 91 34 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	0x3fde22e2	0xdf92bb95	0x67452301	0x7bf36ae2	0x98badcfe	0x10325476
1	0x32ac3cbd	0x8bb47c85	0xdf92bb95	0x59d148c0	0x7bf36ae2	0x98badcfe
2	0xe3f69f0f	0xc7b4cf39	0x8bb47c85	0x77e4aee5	0x59d148c0	0x7bf36ae2
3	0xdcc0d438	0xfdb5ccb0	0xc7b4cf39	0x62ed1f21	0x77e4aee5	0x59d148c0
4	0x36be9d9e	0x14b025fb	0xfdb5ccb0	0x71ed33ce	0x62ed1f21	0x77e4aee5
5	0x5c5c5c5c	0x38b557bd	0x14b025fb	0x3f6d732c	0x71ed33ce	0x62ed1f21
6	0x5c5c5c5c	0xa5e41fe9	0x38b557bd	0xc52c097e	0x3f6d732c	0x71ed33ce
7	0x5c5c5c5c	0xecbc2833	0xa5e41fe9	0x4e2d55ef	0xc52c097e	0x3f6d732c
8	0x5c5c5c5c	0xd1fd659d	0xecbc2833	0x697907fa	0x4e2d55ef	0xc52c097e
9	0x5c5c5c5c	0x25f0e92b	0xd1fd659d	0xfb2f0a0c	0x697907fa	0x4e2d55ef
10	0x5c5c5c5c	0xbc5653b6	0x25f0e92b	0x747f5967	0xfb2f0a0c	0x697907fa
11	0x5c5c5c5c	0xa9a19fed	0xbc5653b6	0xc97c3a4a	0x747f5967	0xfb2f0a0c
12	0x5c5c5c5c	0xaebef7f9	0xa9a19fed	0xaf1594ed	0xc97c3a4a	0x747f5967
13	0x5c5c5c5c	0xec9ae380	0xaebef7f9	0x6a6867fb	0xaf1594ed	0xc97c3a4a
14	0x5c5c5c5c	0x3ee0e859	0xec9ae380	0x6bafbdfe	0x6a6867fb	0xaf1594ed
15	0x5c5c5c5c	0xacfc1c04	0x3ee0e859	0x3b26b8e0	0x6bafbdfe	0x6a6867fb
16	0xb8517bdb	0x97ef9bea	0xacfc1c04	0x4fb83a16	0x3b26b8e0	0x6bafbdfe
17	0xdcd9d10b	0xc0ba3ed8	0x97ef9bea	0x2b3f0701	0x4fb83a16	0x3b26b8e0
18	0xaa900523	0xa2c035c8	0xc0ba3ed8	0xa5fbe6fa	0x2b3f0701	0x4fb83a16
19	0xc9235fc6	0x7723f462	0xa2c035c8	0x302e8fb6	0xa5fbe6fa	0x2b3f0701
20	0xd4ce992b	0x8a7b749f	0x7723f462	0x28b00d72	0x302e8fb6	0xa5fbe6fa
21	0xed98b2ff	0xc19a9031	0x8a7b749f	0x9dc8fd18	0x28b00d72	0x302e8fb6
22	0x2afe0735	0x3c5c0db9	0xc19a9031	0xe29edd27	0x9dc8fd18	0x28b00d72
23	0x11258aef	0xf2fdeb37	0x3c5c0db9	0x7066a40c	0xe29edd27	0x9dc8fd18
24	0xab939248	0xc6985691	0xf2fdeb37	0x4f17036e	0x7066a40c	0xe29edd27
25	0xec4fac7d	0xde5f93d2	0xc6985691	0xfcbf7acd	0x4f17036e	0x7066a40c
26	0x776b1f99	0x97ce58d3	0xde5f93d2	0x71a615a4	0xfcbf7acd	0x4f17036e
27	0xc5619b1c	0xd064a158	0x97ce58d3	0xb797e4f4	0x71a615a4	0xfcbf7acd
28	0x71026aac	0x3b2fa5b7	0xd064a158	0xe5f39634	0xb797e4f4	0x71a615a4
29	0x35e75acd	0xfe5ce691	0x3b2fa5b7	0x34192856	0xe5f39634	0xb797e4f4
30	0x1725775c	0xf3f93605	0xfe5ce691	0xcecbe96d	0x34192856	0xe5f39634
31	0xc144da29	0x99c74466	0xf3f93605	0x7f9739a4	0xcecbe96d	0x34192856
32	0x196b6cfb	0x37ecf491	0x99c74466	0x7cfe4d81	0x7f9739a4	0xcecbe96d
33	0xdd20abd9	0xb3134350	0x37ecf491	0xa671d119	0x7cfe4d81	0x7f9739a4
34	0x90e2b371	0xcf1faad5	0xb3134350	0x4dfb3d24	0xa671d119	0x7cfe4d81
35	0xf16235bd	0x19c97905	0xcf1faad5	0x2cc4d0d4	0x4dfb3d24	0xa671d119
36	0xa424bed6	0xa0bfe358	0x19c97905	0x73c7eab5	0x2cc4d0d4	0x4dfb3d24
37	0xb371a358	0xcf0d7a95	0xa0bfe358	0x46725e41	0x73c7eab5	0x2cc4d0d4
38	0xce55af38	0xe0ae1612	0xcf0d7a95	0x282ff8d6	0x46725e41	0x73c7eab5
39	0x301484db	0xc9c9f98f	0xe0ae1612	0x73c35ea5	0x282ff8d6	0x46725e41
40	0xedc484e4	0x5d413090	0xc9c9f98f	0xb82b8584	0x73c35ea5	0x282ff8d6
41	0x74b66700	0xcdf40c42	0x5d413090	0xf2727e63	0xb82b8584	0x73c35ea5
42	0x4d3e853f	0x07025d99	0xcdf40c42	0x17504c24	0xf2727e63	0xb82b8584
43	0xd840e111	0xd74422f3	0x07025d99	0xb37d0310	0x17504c24	0xf2727e63
44	0x6d6b884d	0xeece6f16	0xd74422f3	0x41c09766	0xb37d0310	0x17504c24
45	0x15d94d06	0x69573c55	0xeece6f16	0xf5d108bc	0x41c09766	0xb37d0310
46	0x30b6ab1c	0x83f704eb	0x69573c55	0xbbb39bc5	0xf5d108bc	0x41c09766
47	0x8236facc	0xcbc70553	0x83f704eb	0x5a55cf15	0xbbb39bc5	0xf5d108bc
48	0xe3282cd0	0x7ced2ca6	0xcbc70553	0xe0fdc13a	0x5a55cf15	0xbbb39bc5
49	0xd084a4f0	0x83cf5773	0x7ced2ca6	0xf2f1c154	0xe0fdc13a	0x5a55cf15
50	0xf79ce4a9	0x4bf72040	0x83cf5773	0x9f3b4b29	0xf2f1c154	0xe0fdc13a
51	0xf2f6b648	0x75ef7fd8	0x4bf72040	0xe0f3d5dc	0x9f3b4b29	0xf2f1c154
52	0xaf3c7aa7	0xbb2d352d	0x75ef7fd8	0x12fdc810	0xe0f3d5dc	0x9f3b4b29
53	0xc2411c58	0xc73ea7ec	0xbb2d352d	0x1d7bdff6	0x12fdc810	0xe0f3d5dc
54	0xc3a26d11	0x3704da95	0xc73ea7ec	0x6ecb4d4b	0x1d7bdff6	0x12fdc810
55	0xd350c760	0xa5816ee0	0x3704da95	0x31cfa9fb	0x6ecb4d4b	0x1d7bdff6
56	0x032662a7	0x97bba568	0xa5816ee0	0x4dc136a5	0x31cfa9fb	0x6ecb4d4b
57	0x7fa09fe1	0x9abd85fb	0x97bba568	0x29605bb8	0x4dc136a5	0x31cfa9fb
58	0x09325d76	0x2fafbb68	0x9abd85fb	0x25eee95a	0x29605bb8	0x4dc136a5
59	0x7892f1f0	0x75541c70	0x2fafbb68	0xe6af617e	0x25eee95a	0x29605bb8
60	0x1a838c2f	0xa5b86b17	0x75541c70	0x0bebeeda	0xe6af617e	0x25eee95a
61	0xb939edc8	0xf8a98fc0	0xa5b86b17	0x1d55071c	0x0bebeeda	0xe6af617e
62	0xd15c365a	0x4aa6d49e	0xf8a98fc0	0xe96e1ac5	0x1d55071c	0x0bebeeda
63	0x36c22ae7	0x6e7e0179	0x4aa6d49e	0x3e2a63f0	0xe96e1ac5	0x1d55071c
64	0x5d568e2d	0xb2b133f7	0x6e7e0179	0x92a9b527	0x3e2a63f0	0xe96e1ac5
65	0x191d7607	0xe612a946	0xb2b133f7	0x5b9f805e	0x92a9b527	0x3e2a63f0
66	0xcea1d33e	0x150b286e	0xe612a946	0xecac4cfd	0x5b9f805e	0x92a9b527
67	0x2ae7ab9a	0x7a7a963e	0x150b286e	0xb984aa51	0xecac4cfd	0x5b9f805e
68	0xde01db3c	0x937ab401	0x7a7a963e	0x8542ca1b	0xb984aa51	0xecac4cfd
69	0xcd13cb9c	0x3a365115	0x937ab401	0x9e9ea58f	0x8542ca1b	0xb984aa51
70	0x767f24ec	0xc9d78f4f	0x3a365115	0x64dead00	0x9e9ea58f	0x8542ca1b
71	0x886752b4	0xd3752238	0xc9d78f4f	0x4e8d9445	0x64dead00	0x9e9ea58f
72	0x34a2f4c1	0xefcd594a	0xd3752238	0xf275e3d3	0x4e8d9445	0x64dead00
73	0xd0a079f4	0x691a67d5	0xefcd594a	0x34dd488e	0xf275e3d3	0x4e8d9445
74	0xaaeea1a6	0x1091e485	0x691a67d5	0xbbf35652	0x34dd488e	0xf275e3d3
75	0xbfdc86c7	0x7526361b	0x1091e485	0x5a4699f5	0xbbf35652	0x34dd488e
76	0x8afc317b	0x20272a6f	0x7526361b	0x44247921	0x5a4699f5	0xbbf35652
77	0xd00d5a2b	0xc68d9706	0x20272a6f	0xdd498d86	0x44247921	0x5a4699f5
78	0x8b5234b8	0x3af95023	0xc68d9706	0xc809ca9b	0xdd498d86	0x44247921
79	0x5a887e5e	0x9c078dd7	0x3af95023	0xb1a365c1	0xc809ca9b	0xdd498d86

H0	H1	H2	H3	H4
0x034cb0d8	0x2ac6fbac	0x4a5e42bf	0xd83c1f11	0xa11c6f76

process M(2)

Details

t	W(t)	A	B	C	D	E
-	-	0x034cb0d8	0x2ac6fbac	0x4a5e42bf	0xd83c1f11	0xa11c6f76
0	0xd24fc189	0x12030c55	0x034cb0d8	0x0ab1beeb	0x4a5e42bf	0xd83c1f11
1	0x5006a657	0x0d39bc92	0x12030c55	0x00d32c36	0x0ab1beeb	0x4a5e42bf
2	0x07bb1801	0x5c872558	0x0d39bc92	0x4480c315	0x00d32c36	0x0ab1beeb
3	0x4ca1b23a	0x477d15fd	0x5c872558	0x834e6f24	0x4480c315	0x00d32c36
4	0xd59d9134	0x209cddb0	0x477d15fd	0x1721c956	0x834e6f24	0x4480c315
5	0x80000000	0xb9c25e06	0x209cddb0	0x51df457f	0x1721c956	0x834e6f24
6	0x00000000	0x2dd9ef0a	0xb9c25e06	0x0827376c	0x51df457f	0x1721c956
7	0x00000000	0x75013bb1	0x2dd9ef0a	0xae709781	0x0827376c	0x51df457f
8	0x00000000	0x78ffccaa	0x75013bb1	0x8b767bc2	0xae709781	0x0827376c
9	0x00000000	0x0e1405d4	0x78ffccaa	0x5d404eec	0x8b767bc2	0xae709781
10	0x00000000	0xa6b44b83	0x0e1405d4	0x9e3ff32a	0x5d404eec	0x8b767bc2
11	0x00000000	0x1bd6b0f7	0xa6b44b83	0x03850175	0x9e3ff32a	0x5d404eec
12	0x00000000	0x4d289891	0x1bd6b0f7	0xe9ad12e0	0x03850175	0x9e3ff32a
13	0x00000000	0xa75a90cc	0x4d289891	0xc6f5ac3d	0xe9ad12e0	0x03850175
14	0x00000000	0x2dff1f13	0xa75a90cc	0x534a2624	0xc6f5ac3d	0xe9ad12e0
15	0x000002a0	0x48029db3	0x2dff1f13	0x29d6a433	0x534a2624	0xc6f5ac3d
16	0xabe9b311	0x498bb387	0x48029db3	0xcb7fc7c4	0x29d6a433	0x534a2624
17	0x394e28da	0x8267df00	0x498bb387	0xd200a76c	0xcb7fc7c4	0x29d6a433
18	0xa44d172b	0x3816fc4b	0x8267df00	0xd262ece1	0xd200a76c	0xcb7fc7c4
19	0xce900256	0xc9d4b986	0x3816fc4b	0x2099f7c0	0xd262ece1	0xd200a76c
20	0xd9a773dd	0x20071f2d	0xc9d4b986	0xce05bf12	0x2099f7c0	0xd262ece1
21	0x489a2e56	0xb203ddd0	0x20071f2d	0xb2752e61	0xce05bf12	0x2099f7c0
22	0x9d2004ad	0xc9873082	0xb203ddd0	0x4801c7cb	0xb2752e61	0xce05bf12
23	0xb34ee2fb	0x698bd281	0xc9873082	0x2c80f774	0x4801c7cb	0xb2752e61
24	0xc6e73a8f	0xc6b6a4fb	0x698bd281	0xb261cc20	0x2c80f774	0x4801c7cb
25	0x48dc58ef	0xcdf795a8	0xc6b6a4fb	0x5a62f4a0	0xb261cc20	0x2c80f774
26	0x2e07eba0	0xb70b2049	0xcdf795a8	0xf1ada93e	0x5a62f4a0	0xb261cc20
27	0x10ee71b2	0x79c6fadf	0xb70b2049	0x337de56a	0xf1ada93e	0x5a62f4a0
28	0x22f65665	0x9aedfeb2	0x79c6fadf	0x6dc2c812	0x337de56a	0xf1ada93e
29	0xcd3b8eac	0xb2fcd185	0x9aedfeb2	0xde71beb7	0x6dc2c812	0x337de56a
30	0x4c4f8c1c	0x77a015f4	0xb2fcd185	0xa6bb7fac	0xde71beb7	0x6dc2c812
31	0x51ed3dc9	0xecc2c0a8	0x77a015f4	0x6cbf3461	0xa6bb7fac	0xde71beb7
32	0x08f02032	0xac383de0	0xecc2c0a8	0x1de8057d	0x6cbf3461	0xa6bb7fac
33	0xe69bfcff	0x20cf1615	0xac383de0	0x3b30b02a	0x1de8057d	0x6cbf3461
34	0x0401653e	0x845dd09b	0x20cf1615	0x2b0e0f78	0x3b30b02a	0x1de8057d
35	0x3c28fb01	0x8596a8d6	0x845dd09b	0x4833c585	0x2b0e0f78	0x3b30b02a
36	0x01d5bbd5	0x46158cd6	0x8596a8d6	0xe1177426	0x4833c585	0x2b0e0f78
37	0x65dc4e7e	0xef27fdd4	0x46158cd6	0xa165aa35	0xe1177426	0x4833c585
38	0x5740927e	0xf9b55106	0xef27fdd4	0x91856335	0xa165aa35	0xe1177426
39	0x57547811	0xbdb72d8b	0xf9b55106	0x3bc9ff75	0x91856335	0xa165aa35
40	0x0b997ec7	0xac860a84	0xbdb72d8b	0xbe6d5441	0x3bc9ff75	0x91856335
41	0xd3d28fb9	0x45227da0	0xac860a84	0xef6dcb62	0xbe6d5441	0x3bc9ff75
42	0xbf4941d4	0xdcebfc6d	0x45227da0	0x2b2182a1	0xef6dcb62	0xbe6d5441
43	0xd4c8f5b1	0x2ef36029	0xdcebfc6d	0x11489f68	0x2b2182a1	0xef6dcb62
44	0x797ddc2b	0xefdd07f7	0x2ef36029	0x773aff1b	0x11489f68	0x2b2182a1
45	0x8c87799e	0x79e0b741	0xefdd07f7	0x4bbcd80a	0x773aff1b	0x11489f68
46	0x8e6f97c3	0xdaa7bb51	0x79e0b741	0xfbf741fd	0x4bbcd80a	0x773aff1b
47	0x32beca19	0x0a01c194	0xdaa7bb51	0x5e782dd0	0xfbf741fd	0x4bbcd80a
48	0x17de84ab	0x0de675e3	0x0a01c194	0x76a9eed4	0x5e782dd0	0xfbf741fd
49	0x0e1c3f09	0xb427e817	0x0de675e3	0x02807065	0x76a9eed4	0x5e782dd0
50	0x1046aa4d	0x89780cd4	0xb427e817	0xc3799d78	0x02807065	0x76a9eed4
51	0x35c588cb	0xecaec781	0x89780cd4	0xed09fa05	0xc3799d78	0x02807065
52	0x43e99512	0x34d84ee4	0xecaec781	0x225e0335	0xed09fa05	0xc3799d78
53	0x5c93cb79	0x3641c558	0x34d84ee4	0x7b2bb1e0	0x225e0335	0xed09fa05
54	0xcee7e763	0x45a04d2e	0x3641c558	0x0d3613b9	0x7b2bb1e0	0x225e0335
55	0xeba35147	0x904a4918	0x45a04d2e	0x0d907156	0x0d3613b9	0x7b2bb1e0
56	0xff3ae183	0x207bc48f	0x904a4918	0x9168134b	0x0d907156	0x0d3613b9
57	0x8fc344c5	0xccd5f898	0x207bc48f	0x24129246	0x9168134b	0x0d907156
58	0x7ba2cdea	0xd388a184	0xccd5f898	0xc81ef123	0x24129246	0x9168134b
59	0x2561cacf	0x8310bb92	0xd388a184	0x33357e26	0xc81ef123	0x24129246
60	0x7671347e	0xefa1296b	0x8310bb92	0x34e22861	0x33357e26	0xc81ef123
61	0x32116a29	0x3d803874	0xefa1296b	0xa0c42ee4	0x34e22861	0x33357e26
62	0xe46e7d88	0x0d94fbf9	0x3d803874	0xfbe84a5a	0xa0c42ee4	0x34e22861
63	0x42e12053	0x5b71e675	0x0d94fbf9	0x0f600e1d	0xfbe84a5a	0xa0c42ee4
64	0x95674a99	0x67e7c9bc	0x5b71e675	0x43653efe	0x0f600e1d	0xfbe84a5a
65	0xa0e91d1e	0x7ba23770	0x67e7c9bc	0x56dc799d	0x43653efe	0x0f600e1d
66	0xd5d9a5cc	0x9641f2ad	0x7ba23770	0x19f9f26f	0x56dc799d	0x43653efe
67	0xb2a187c9	0xbd2f9ad1	0x9641f2ad	0x1ee88ddc	0x19f9f26f	0x56dc799d
68	0xb72cb622	0x0fafd8ea	0xbd2f9ad1	0x65907cab	0x1ee88ddc	0x19f9f26f
69	0xa1f0abb6	0x429fe8e2	0x0fafd8ea	0x6f4be6b4	0x65907cab	0x1ee88ddc
70	0xce25f942	0x10e2a831	0x429fe8e2	0x83ebf63a	0x6f4be6b4	0x65907cab
71	0x235b07e7	0x1de344f6	0x10e2a831	0x90a7fa38	0x83ebf63a	0x6f4be6b4
72	0x601f9a8d	0x59e5860d	0x1de344f6	0x4438aa0c	0x90a7fa38	0x83ebf63a
73	0x88dcd4ad	0xdd58632a	0x59e5860d	0x8778d13d	0x4438aa0c	0x90a7fa38
74	0xf6a2b77f	0x975fd624	0xdd58632a	0x56796183	0x8778d13d	0x4438aa0c
75	0x8b9d7b45	0x928d7f4d	0x975fd624	0xb75618ca	0x56796183	0x8778d13d
76	0x5bde56f3	0x75da8325	0x928d7f4d	0x25d7f589	0xb75618ca	0x56796183
77	0x4f44ad66	0x2b7dc77b	0x75da8325	0x64a35fd3	0x25d7f589	0xb75618ca
78	0x69636a2c	0x8f835db0	0x2b7dc77b	0x5d76a0c9	0x64a35fd3	0x25d7f589
79	0x351ad8b3	0x28697e84	0x8f835db0	0xcadf71de	0x5d76a0c9	0x64a35fd3

H0	H1	H2	H3	H4
0x2bb62f5c	0xba4a595c	0x153db49d	0x35b2bfda	0x05bfcf49

2b b6 2f 5c ba 4a 59 5c 15 3d b4 9d 35 b2 bf da 05 bf cf 49

Sbits = DT(HS)

Details

OffsetBits = low-order 4 bits of HS[19]	9
Offset = StToNum(OffsetBits)	9
P = HS[OffSet]...HS[OffSet+3]	3d b4 9d 35
Last 31 bits of P	3d b4 9d 35

3d b4 9d 35

Snum = StToNum(Sbits)

1035246901

D = Snum mod 10^Digit

246901

Step-by-Step TOTP

Inputs

TOTP Code

Intermediate values

References