Dear Wayne, Both SwissSign certificates mentioned are roots that are cross-signed by our "SwissSign Gold CA – G2" and thus fall under the exception of MRSP 5.3. The corresponding self-signed roots can be found e.g. here:
* https://crt.sh/?id=5011200301 * https://crt.sh/?id=7044154542 Kind regards Roman From: [email protected] <[email protected]> On Behalf Of Wayne Sent: Montag, 20. Juli 2026 07:03 To: [email protected] Cc: Michael Stone <[email protected]>; Wayne <[email protected]> Subject: Re: MRSP Intermediate Violations (5.3), Mass Report of 26 Subordinate CAs Yup my bad had the notBefore >=2019-01-01 still active on the checks. Here is a revised list being more conservative on any self-signs: Layout: ID, Subject CN, Subject DN, SHA256s matching 1. AC Sector Público C=ES, O=FNMT-RCM, OU=Ceres, organizationIdentifier=VATES-Q2826004J, CN=AC Sector Público 8265756dd5cd8a37ee61e40351288e4b16a89dd248c1ec4eba25aaf161abf498 2. AC Unidades de Sellado de Tiempo C=ES, O=FNMT-RCM, OU=Ceres, organizationIdentifier=VATES-Q2826004J, CN=AC Unidades de Sellado de Tiempo 9ce630b35f8ae2c6419e734ad9d2fa30476dd9e7394b1e93b27f83f776a024ea 3. DigiCert Global Root G2 C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert Global Root G2 6523c34f1e879add7603cb2048a898a5e2f0c6c4b512c0d22782b85d43ae3371 79d57b15dfa65c2870eafe11b637765909cfe937b49c15ce7f194030cab395ad a0d609a7e3c434e878a9a1c1bd065b8dcf33aa7efee1b11bc75cce5e5a042080 caf8ad697f7bda712ab127a8ad8b83f74a91a0de1784a1b483fef9ac79b67513 4. GlobalSign OU=GlobalSign Root CA - R6, O=GlobalSign, CN=GlobalSign c84e1378b974a991acdcdd733421e3061e6fa21a0491c8902bafde3855e0063e dda8da736187d76f4f0ed5a5f667b54d99a98ae06091d0e3a01714e9221695ad 5. SwissSign RSA SMIME Root CA 2022 - 1 C=CH, O=SwissSign AG, CN=SwissSign RSA SMIME Root CA 2022 - 1 5a84c94054d340d650a29985ef97bb396352e215aed6c0b33ca7ffdd3bd5d2a2 6. SwissSign RSA SMIME Root CA 2021 - 1 C=CH, O=SwissSign AG, CN=SwissSign RSA SMIME Root CA 2021 - 1 bc8bbd7d279d2e5f070bcef6faf3aab1bef30da3eb2875424295ad147f2aef07 7. USERTrust RSA Certification Authority C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority 68b9c761219a5b1f0131784474665db61bbdb109e00f05ca9f74244ee5f5f52b - Wayne On Monday, July 20, 2026 at 4:45:35 AM UTC+1 Michael Stone wrote: Hi Wayne, Good day. Regarding the certificates you mentioned, for CFCA: - sha256 Fingerprint=6E:6E:B2:9F:5E:BA:91:0A:FF:D4:62:FC:92:1D:72:4E:52:68:05:EF:E9:08:AE:C4:5B:D4:09:B6:24:E1:4C:09 this is a root certificate, it's not in violation with MRSP 5.3 - sha256 Fingerprint=FA:A4:FA:0E:F7:05:6D:69:53:BB:DF:B3:64:61:E3:F7:CD:F3:33:52:AF:72:4F:D8:25:4B:18:4D:3E:2C:94:1F this is a cross certificate signed by CFCA EV ROOT, and within the 'exception' of MRSP 5.3. I've just checked BR, it seems not in violation with BR/MRSP. Let me know if you have any other concerns. On Monday, July 20, 2026 at 11:38:42 AM UTC+8 Matthew McPherrin wrote: The following two entries from Let's Encrypt are not intermediate certificates: They are roots, pending inclusion. I haven't validated this to be true of every entry on the list, but it appears to me certainly the majority are either roots, or are cross-signed which have an explicit exemption in the policy. 18. Root YE - C=US, O=ISRG, CN=Root YE e14ffcad5b0025731006caa43a121a22d8e9700f4fb9cf852f02a708aa5d5666 19. Root YR - C=US, O=ISRG, CN=Root YR e57b7e6f150c419102e8d5c055729ff967b9d1a829bf00cec89ca604ebf4a86f On Sunday, July 19, 2026 at 8:16:37 PM UTC-4 Wayne wrote: I have been performing some unrelated research and had a read of the Mozilla Root Store Policy. >5.3 Intermediate Certificates >All certificates that are capable of being used to issue new certificates and >that directly or transitively chain to a CA certificate included in Mozilla’s >root store MUST be operated in accordance with this policy. > >... > >Intermediate certificates created after January 1, 2019, with the exception of >cross-certificates that share a private key with a corresponding root >certificate: >- MUST contain an EKU extension; >- MUST NOT include the anyExtendedKeyUsage KeyPurposeId; and >- MUST NOT include both the id-kp-serverAuth and id-kp-emailProtection >KeyPurposeIds in the same certificate. Thanks to Censys and the following query I've been about to check the above. (cert.validation.nss.is_valid=true and not cert.labels="revoked" and (cert.labels = "intermediate" and not cert.labels="root")) and cert.parsed.validity_period.not_before>='2019-01-01' and not (cert.parsed.extensions.extended_key_usage.server_auth=false or cert.parsed.extensions.extended_key_usage.server_auth=true) The following concerns all known intermediate certificates that chain to the NSS store that lack an EKU extension. No corresponding root certificate was found through checks. Layout: ID, Subject CN, Subject DN, SHA256s matching 1. AC Sector Público C=ES, O=FNMT-RCM, OU=Ceres, organizationIdentifier=VATES-Q2826004J, CN=AC Sector Público 8265756dd5cd8a37ee61e40351288e4b16a89dd248c1ec4eba25aaf161abf498 2. AC Unidades de Sellado de Tiempo C=ES, O=FNMT-RCM, OU=Ceres, organizationIdentifier=VATES-Q2826004J, CN=AC Unidades de Sellado de Tiempo 9ce630b35f8ae2c6419e734ad9d2fa30476dd9e7394b1e93b27f83f776a024ea 3. Amazon ECDSA 256 Root EU M1 C=DE, O=Amazon, CN=Amazon ECDSA 256 Root EU M1 9ead32c9285fe68ba2c5b0fe427d149b103fdfa1d0958d77c3da0ff246e853d3 4. Amazon ECDSA 384 Root EU M1 C=DE, O=Amazon, CN=Amazon ECDSA 384 Root EU M1 8e136ce0e77c848f2d2910abd4e3a764358bb1b7a4932202bc9b915732462d85 5. Amazon RSA 2048 Root EU M1 C=DE, O=Amazon, CN=Amazon RSA 2048 Root EU M1 eaffac50c7e3e15a68f779a5e70ec2f5e9fc4a03ff69ab337b4d6c4510432395 6. Certum EC-384 CA C=PL, O=Asseco Data Systems S.A., OU=Certum Certification Authority, CN=Certum EC-384 CA b72450abf5047a8af63ec9d87e331484850b1849a2550a82a86db6b41ed38760 7. Certum Trusted Network CA 2 C=PL, O=Unizeto Technologies S.A., OU=Certum Certification Authority, CN=Certum Trusted Network CA 2 08e7eac998a62c4155cc4cbc5eda32f5b41a12c012f29ab3433bd366348149f0 8. Certum Trusted Root CA C=PL, O=Asseco Data Systems S.A., OU=Certum Certification Authority, CN=Certum Trusted Root CA fb13890c7ab14ff7b94b2714503e31123bfdd340fc4d979743166e0469b47a88 9. CFCA Global RSA ROOT G2 C=CN, O=China Financial Certification Authority, CN=CFCA Global RSA ROOT G2 6e6eb29f5eba910affd462fc921d724e526805efe908aec45bd409b624e14c09 faa4fa0ef7056d6953bbdfb36461e3f7cdf33352af724fd8254b184d3e2c941f 10. DigiCert Assured ID Root G2 C=US, O=DigiCert Inc, OU=www.digicert.com<http://www.digicert.com/>, CN=DigiCert Assured ID Root G2 d9ae5ed27c9c6485296c89a29d222f4ab2bc7eeca51ecc8d2d7a23fe9c1151da 11. DigiCert Global Root G2 C=US, O=DigiCert Inc, OU=www.digicert.com<http://www.digicert.com/>, CN=DigiCert Global Root G2 6523c34f1e879add7603cb2048a898a5e2f0c6c4b512c0d22782b85d43ae3371 79d57b15dfa65c2870eafe11b637765909cfe937b49c15ce7f194030cab395ad a0d609a7e3c434e878a9a1c1bd065b8dcf33aa7efee1b11bc75cce5e5a042080 caf8ad697f7bda712ab127a8ad8b83f74a91a0de1784a1b483fef9ac79b67513 12. DigiCert Trusted Root G4 C=US, O=DigiCert Inc, OU=www.digicert.com<http://www.digicert.com/>, CN=DigiCert Trusted Root G4 33846b545a49c9be4903c60e01713c1bd4e4ef31ea65cd95d69e62794f30b941 13. e-Szigno RSA TLS Root CA 2025 C=HU, L=Budapest, O=Microsec Ltd., CN=e-Szigno RSA TLS Root CA 2025 a01c4f8f68112fa9dac50b96809a791480168c8acb9e51c5482d8d3819688557 14. GlobalSign OU=GlobalSign ECC Root CA - R5, O=GlobalSign, CN=GlobalSign f349954e8fb6d44011bcb789d97d9a2cb2032bd5f0b598d1fb8a099f5848d523 15. GlobalSign OU=GlobalSign Root CA - R6, O=GlobalSign, CN=GlobalSign c84e1378b974a991acdcdd733421e3061e6fa21a0491c8902bafde3855e0063e dda8da736187d76f4f0ed5a5f667b54d99a98ae06091d0e3a01714e9221695ad 16. GTS Root R1 C=US, O=Google Trust Services LLC, CN=GTS Root R1 3ee0278df71fa3c125c4cd487f01d774694e6fc57e0cd94c24efd769133918e5 17. Microsoft TLS RSA Root G2 C=US, O=Microsoft Corporation, CN=Microsoft TLS RSA Root G2 6a170583db584151e1c454eeca2a64cc5d8e484a5bd1156e720b4458654ee9e5 18. Root YE C=US, O=ISRG, CN=Root YE e14ffcad5b0025731006caa43a121a22d8e9700f4fb9cf852f02a708aa5d5666 19. Root YR C=US, O=ISRG, CN=Root YR e57b7e6f150c419102e8d5c055729ff967b9d1a829bf00cec89ca604ebf4a86f 20. SSL.com EV Root Certification Authority ECC C=US, ST=Texas, L=Houston, O=SSL Corporation, CN=SSL.com EV Root Certification Authority ECC 60ef412eabe7c3fc6399eed1b633b777747515b29d721b963dd258bc498ab292 21. SSL.com Root Certification Authority ECC C=US, ST=Texas, L=Houston, O=SSL Corporation, CN=SSL.com Root Certification Authority ECC 06b9722a699c57dff1869f430b479bb6eb49aae1184eac9c5325c1334a34ea4c 22. SwissSign RSA SMIME Root CA 2021 - 1 C=CH, O=SwissSign AG, CN=SwissSign RSA SMIME Root CA 2021 - 1 bc8bbd7d279d2e5f070bcef6faf3aab1bef30da3eb2875424295ad147f2aef07 23. SwissSign RSA SMIME Root CA 2022 - 1 C=CH, O=SwissSign AG, CN=SwissSign RSA SMIME Root CA 2022 - 1 5a84c94054d340d650a29985ef97bb396352e215aed6c0b33ca7ffdd3bd5d2a2 24. TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 2 C=TR, ST=Kocaeli, O=TUBITAK Kamu Sertifikasyon Merkezi, CN=TUBITAK Kamu SM SSL Kok Sertifikasi - Surum 2 ec6431ba9fc13e405df80ade58a048136f789a03fdca4cf5daa4336ac522225b 25. USERTrust ECC Certification Authority C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust ECC Certification Authority a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea 26. USERTrust RSA Certification Authority C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority 68b9c761219a5b1f0131784474665db61bbdb109e00f05ca9f74244ee5f5f52b Whether directly or indirectly because of chaining these are currently in violation of the Mozilla Root Store Policy. - Wayne -- You received this message because you are subscribed to the Google Groups "[email protected]<mailto:[email protected]>" group. 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