List of the ZT Browser trusted SM2 certificate transparency log system

Updated Dec 3, 2025

There are 3 SM2 certificate transparency log systems included and trusted by ZT Browser, and there are 3 SM2 CT Logs are in the ReadOnly period, the specific parameters are shown in the following table. Welcome more SM2 certificate transparency log service release and submit for ZT Browser certification, after passing the certification, it will be included in ZT Browser for verifying the transparency signature data in the SM2 SSL certificate. More SM2 CT log, more secure for SM2 SSL certificate.

Part I Usable CT Logs


SM2 CT log 1

SM2 CT log 2

SM2 CT log 3

Log Name
ZoTrus ‘SM2CTcn2027’
Log ID(SM3)
15f210e3ff65507a42a5c06d667c9b33beace25e7c802115e83b69f7e32167de
Log ID(SHA-2)
931ce2a26bf16ed712c3857e18f006c4663dba6c3e550ef922f65bdde4b11e8a
Log URL
https://log.sm2ct.cn/2027
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAEErPgTMQUITrYJeyWbIvtoy/sPZsn
c/RR6ffNbH8HT2nfKzod7ohn1wt4GpiaARulybopcKOCPVUWBX5JY20UEA==
-----END PUBLIC KEY-----
Usable Period
2026-01-01-00:00:00 – 2027-01-01-00:00:00 (China Time)
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
ZoTrus IDC Shenzhen Node, Alibaba CDN, China
Log Operator
ZoTrus Technology Limited
Log Name
CerSign ‘SM2CT2027’
Log ID(SM3)
735700ef13f144455aa7f400c9220449804ef9de3a59c892d3b29dde286901eb
Log ID(SHA-2)
4454a3c6d46991abeeb479b79820d6e22b1d987e455cb174f60491cedaf35f9a
Log URL
https://sm2ct.cersign.cn/2027
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAEefok9v5eFg9soZfPysLOYFUF3mTC
Zq8XrhsKST5DPdaQVEfSvYhSEnidQEO3mpPjsd8Wg0bpho4bR7nYA9pQAg==
-----END PUBLIC KEY-----
Usable Period
2026-01-01-00:00:00 – 2027-01-01-00:00:00 (China Time)
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
ZoTrus IDC Shenzhen Node, Alibaba CDN, China
Log Operator
CerSign Technology Limited
Log Name
ZoTrus ‘SM2CTcom2027’
Log ID(SM3)
78a41057f11f9bddf841c05e4a326df11bee4bb3ddb5b463cd9e810e1c0f8aae
Log ID(SHA-2)
af7b777d4849615be0bbd80788a580e13d74b2d22f0424e727cf2960316b75ee
Log URL
https://log.sm2ct.com/2027
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAEpW1iwgWHi8BYqMr6lTnYINcwvNdn
FixGJfXaVJXZH4aUAt/hHGS/pHlGfYnRTetl/dNAtSAB9fSyNQZdj9ruVQ==
-----END PUBLIC KEY-----
Usable Period
2026-01-01-00:00:00 – 2027-01-01-00:00:00 (China Time)
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
ZoTrus IDC Shenzhen Node, Alibaba CDN, China
Log Operator
ZoTrus Technology Limited

Part II ReadOnly CT Logs


2025
2024
2023
2022

SM2 CT log 1

SM2 CT log 2

SM2 CT log 3

Log Name
ZoTrus ‘SM2CTcn2026’
Log ID(SM3)
41fcbe98bed36d7ce2a118a97e7b93adf623f83a1f93f9f4f965bec6e539591d
Log ID(SHA-2)
50b13dc42e810ae544d18eea296bdc126acc9cc0b8a71750ab7a26e743162086
Log URL
https://log.sm2ct.cn/2026
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAEZPcBQNQlV5s7w5ns78UjqjaXu3hD
sreExEDQYaIWrFlnY18TXR6V6UtJZx3OTZgRXR6p1fBQug0h6BFn53sLjA==
-----END PUBLIC KEY-----
Usable Period
2025-01-01-00:00:00 – 2026-01-01-00:00:00 (China Time)
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
ZoTrus IDC Shenzhen Node, Alibaba CDN, China
Log Operator
ZoTrus Technology Limited
Log Name
CerSign ‘SM2CT2026’
Log ID(SM3)
d808093fc47d491eed39fe0e3270f4d717d426ca847a82bf2f2b009347f480e0
Log ID(SHA-2)
56c85d8bc4cf9c2111a73881c8430c0bfd7de774465cb72e8ce5b197bad3fb88
Log URL
https://sm2ct.cersign.cn/2026
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAE8p3TlUJsnx8j3M6fHlIXg6lCmeYc
hofKJqVerVKPdPhaE+n+5SDksUqatntanAfs6yi8MuzEKCboPoAhbjS8gg==
-----END PUBLIC KEY-----
Usable Period
2025-01-01-00:00:00 – 2026-01-01-00:00:00 (China Time)
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
ZoTrus IDC Shenzhen Node, Alibaba CDN, China
Log Operator
CerSign Technology Limited
Log Name
ZoTrus ‘SM2CTcom2026’
Log ID(SM3)
e44cb07620a50b4182f2f3e300e49866943f189ff88e0a5633d33f947907d031
Log ID(SHA-2)
09634095edebcf3460c84497bcf733d270ee90b528546f08071cc54c81cedffa
Log URL
https://log.sm2ct.com/2026
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAEGUS1+U382zPV1mfOYjIKt0kkv+mQ
NjVOW15ZmmKp4UAyoASozbOM0iz8gnsmRGfAXG91dSjpqmbQ3nEtJQOxDw==
-----END PUBLIC KEY-----
Usable Period
2025-01-01-00:00:00 – 2026-01-01-00:00:00 (China Time)
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
ZoTrus IDC Shenzhen Node, Alibaba CDN, China
Log Operator
ZoTrus Technology Limited

SM2 CT log 1

SM2 CT log 2

SM2 CT log 3

Log Name
ZoTrus ‘SM2CTcn2025’
Log ID(SM3)
78838426d55ea4e987f59d406664cee4a8684088634b333d52de7c124b5efaa5
Log ID(SHA-2)
007d288d8f3bf05015ca20314b4df6134c2ba6244764e9c6de232e94099aced1
Log URL
https://log.sm2ct.cn/2025
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAEv4GTkU4OqBiMTrTfXnLg3mTPIgrW
TFGVsM06m7O35mIYyoClixsDcSdV7MLNNvoS5hs7gkf9+E6io5kpWxcHBQ==
-----END PUBLIC KEY-----
Usable Period
2024-01-01-00:00:00 – 2025-01-01-00:00:00 (China Time)
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
JD Cloud Guangzhou Node, China
Log Operator
ZoTrus Technology Limited
Log Name
CerSign ‘SM2CT2025’
Log ID(SM3)
1f573146c7cd227d1e2d348c20eebf9719ab249f70058d8f1c6db5303f398b23
Log ID(SHA-2)
2f1c80441b80635dbcc49984f438b5541ec4c08ead2cdd5df9cb3e7f64d92e08
Log URL
https://sm2ct.cersign.cn/2025
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAEoKrhM5W/cnJ6bqS9IMD0W2W7QmX/
O9IhMqWwAsAmuNzYv3iBv1uAZ1QsK8QAJDa1QiQA8q9wuvpvzEAzyP6Exg==
-----END PUBLIC KEY-----
Usable Period
2024-01-01-00:00:00 – 2025-01-01-00:00:00 (China Time)
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
Tencent Cloud Guangzhou Node, China
Log Operator
CerSign Technology Limited
Log Name
ZoTrus ‘SM2CTcom2025’
Log ID(SM3)
a5fd47299e1441eca3d4d4e3b20db358650dcdecf65c536a83ec1bc3f30ae4ef
Log ID(SHA-2)
e67a7ee439ca3623598d0574fb9700667e6eec93639d6ed684cb1249369735bf
Log URL
https://log.sm2ct.com/2025
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAEWAniXf992Qv6OBtiplVotiho6Gr1
skFdRcasvV9hf6mBmMRLoXmQNWhSakenJbEJP6p/KBIctf/jODvICfNolg==
-----END PUBLIC KEY-----
Usable Period
2024-01-01-00:00:00 – 2025-01-01-00:00:00 (China Time)
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
China Telecom Tianyi Cloud Guizhou Node, China
Log Operator
ZoTrus Technology Limited

SM2 CT log 1

SM2 CT log 2

SM2 CT log 3

Log Name
ZoTrus ‘SM2CTcn2024’
Log ID(SM3)
a20e6b69d5914415c7edb1a071b7c1402e79b879cf636f1bffbdef1cd9212bd3
Log ID(SHA-2)
406d334d74f99d559a167b384de64e6375c597f319c65cf6f46529c58bb2c285
Log URL
https://log.sm2ct.cn/2024
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAE1qrl3QzqQi0udgVguCXacGUkBd3f
5qLnoPY0b5XpC/Re9aYndtptBiIbOGAKPJJaM4Tp8yGQu27BsgBM1thN1Q==
-----END PUBLIC KEY-----
Usable Period
2023-01-01-00:00:00 – 2024-01-01-00:00:00 (China Time)
Read-Only Period
2024-01-01-00:00:00 – 2025-02-01-00:00:00 (China Time)
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
JD Cloud Guangzhou Node, China
Log Operator
ZoTrus Technology Limited
Log Name
CerSign ‘SM2CT2024’
Log ID(SM3)
6e4c953eb1bb8d0dadcc6bb9ae8b85e12208e0d5425b66840346c96089f11b5e
Log ID(SHA-2)
7d2023d48f8e231a4eb789f29be3bb6309aa15879f15a9cee0a4809ef8b75a27
Log URL
https://sm2ct.cersign.cn/2024
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAEB/lD/84MhVYQxH+od/9Wuao/qePW
3df63599BwTt5yUJcDnUj3IZ2gewfXMEt58mpUYNYHicW2iC5vReRlzTzg==
-----END PUBLIC KEY-----
Usable Period
2023-01-01-00:00:00 – 2024-01-01-00:00:00 (China Time)
Read-Only Period
2024-01-01-00:00:00 – 2025-02-01-00:00:00 (China Time)
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
Tencent Cloud Guangzhou Node, China
Log Operator
CerSign Technology Limited
Log Name
ZoTrus ‘SM2CTcom2024’
Log ID(SM3)
ace9a0cf5dae9b454bf80e31b05a520d4e2abf2af2d4b093dba18be5eb13ae29
Log ID(SHA-2)
ad55d88cc5f0fd0a44bec95b91ec47e0d702fc92aeadcc2270f3ee9a1186afbf
Log URL
https://log.sm2ct.com/2024
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAEv8JSTW48OFKO5MUYK890iCxe/nqB
bdCBUsSOj8c6bDvAp5Zy9j4pVEbioWaBMicqC0zQvQq/E0zkFnfInZ+Cgw==
-----END PUBLIC KEY-----
Usable Period
2023-01-01-00:00:00 – 2024-01-01-00:00:00 (China Time)
Read-Only Period
2024-01-01-00:00:00 – 2025-02-01-00:00:00 (China Time)
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
China Telecom Tianyi Cloud Guizhou Node, China
Log Operator
ZoTrus Technology Limited

SM2 CT log 1

SM2 CT log 2

SM2 CT log 3

Log Name
ZoTrus ‘SM2CTcn2023’
Log URL
https://log.sm2ct.cn/2023
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAEUxLyhJcO706GOj2tJRweJ4Mg6vxM
inGSerif22uLIfMivDzs+Ku+cmPM32O0LCyEu7hzk1RFGVDMFNLr8Fj+sA==
-----END PUBLIC KEY-----
Usable Period
2022-09-30-00:00:00 – 2023-01-01-00:00:00 (China Time)
Read-Only Period
2023-01-01-00:00:00 – 2024-02-01-00:00:00 (China Time)
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
JD Cloud Guangzhou Node, China
Log Operator
ZoTrus Technology Limited
Log Name
CerSign ‘SM2CT2023’
Log URL
https://sm2ct.cersign.cn/2023
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAEmBZTOZ+eYoCl4LKoeJY+gDlYweIc
/ZxYKN9nIGSruAbaefpP3M/sLAn7YsPDvpDqEr8eZYEsbTNyI5wW8GvqzA==
-----END PUBLIC KEY-----
Usable Period
2022-09-30-00:00:00 – 2023-01-01-00:00:00 (China Time)
Read-Only Period
2023-01-01-00:00:00 – 2024-02-01-00:00:00 (China Time)
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
Tencent Cloud Guangzhou Node, China
Log Operator
CerSign Technology Limited
Log Name
ZoTrus ‘SM2CTcom2023’
Log URL
https://log.sm2ct.com/2023
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAEUPvpL2+kqmrYZYsBa4j/f03Y/zD0
aEowt6DmYsCUykPiaLzltS9wVElonPRggx0YKjBl9M21jSminbbHk3q1jg==
-----END PUBLIC KEY-----
Usable Period
2022-09-30-00:00:00 – 2023-01-01-00:00:00 (China Time)
Read-Only Period
2023-01-01-00:00:00 – 2024-02-01-00:00:00 (China Time)
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
China Telecom Tianyi Cloud Guizhou Node, China
Log Operator
ZoTrus Technology Limited

Part III Test CT Log


Log Name
ZoTrus 'SM2CTTest2024'
Log ID(SM3)
1215CA3B4E27555E7CBC9CF0A34FF5487CA1B7F4A669415B0B2DF03284D2997E
Log ID(SHA-2)
6d5f6925a1c84e3130a06e0b6b0ef3015abdb85088a7ae55661a35d089595e23
Log URL
https://testlog.sm2ct.cn/2024
CT Public Key
-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAELIOEMrxGodZlvYBMkCUhq8NhzrBQ
tXZZKsUX0gyQPHKeyMBFZEEj2+4/R0ZMOcEDyF582WK3WgPPhNqKFqbMTw==
-----END PUBLIC KEY-----
Algorithm
SM2
MMD
24 hours
Trusted SM2 root list
https://www.zotrus.com/en/browser/zt-browser-trusted-sm2-root-certificates.html
Please contact us to include the test root CA certificate, then CA can submit the SM2 test Precertificate.
SCT Algorithm
SM3_SM2
SSL Certificate Algorithm
SM2/RSA/ECC
System Location
JD Cloud Guangzhou Node, China
Log Operator
ZoTrus Technology Limited