mcotton.microduino.cn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:86:2f:75:d6:7a:0a:b5:05:59:d5:89:47:da:91:50:13:14 was issued on by Let's Encrypt.
This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.
We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=mcotton.microduino.cn
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:86:2f:75:d6:7a:0a:b5:05:59:d5:89:47:da:91:50:13:14Serial Number (int): 306997780527325638363961176058564959015700
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 11:6b:0a:c9:c7:0a:2b:d6:41:86:4a:e0:4b:ad:e9:f9:03:c9:4e:47
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): c4:a9:e5:72:86:23:93:14:93:86:c8:a2:48:ea:5e:1c:b4:19:d1:8e
Fingerprint (sha256): 40:8e:22:dd:ac:a7:38:61:2a:38:78:30:11:bd:26:b8:36:8d:ed:da:22:83:e6:2a:f4:87:d2:39:ee:68:64:fa
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate mcotton.microduino.cn
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for mcotton.microduino.cn
Public Key Algorithm
RSA
Key Size
4096
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
mcotton.microduino.cn
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Certificate
The complete raw certificate details for mcotton.microduino.cn in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGYzCCBUugAwIBAgISA4YvddZ6CrUFWdWJR9qRUBMUMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAzMDkwMTM0NTNaFw0y MDA2MDcwMTM0NTNaMCAxHjAcBgNVBAMTFW1jb3R0b24ubWljcm9kdWluby5jbjCC AiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBANZruFMG3aP2G2eqnp2RCYjl 6YtqpiId03SB9pAwRpLl/npPFoMrb7aujY81DyP/XtwIR73E4AqncAr10WQgCGyj dt1HhMjsLqfL1qiFlOQ+N+myrPcwncC0Tiktq0Uc3qAJd0UvwWFQ1+DzKcbCIz8U p9rz/yfOt+OP8RW5/fNsXflm/Q11g2hunaWBeK5Q/yKMpwytDDVXcuL5LGs6huzI elOfo+0Gy1NEcmSO9g2zY7+V+FXsxD89TBAUbA1oB+UWjO/ywRXXYMKAX1qdMipP jm95Zllh8km0sPS6qCWZ2eiU30ivUWhV7sRLVgZINK6XAT73haUPA8vSStDBT/3P dNgoZqI7iFBw3Kc0eEdoHa61rYdgwPKLDk3hEVe912L2PQnUrjZtgzWWSav/akjX BSy8/owvrUndZJWEHsPfun5rQrHJlfQo8cFWxd1C8/AWnjDTprqnjlRFSs6MXHcL 1O9Z9khJDPmfab0fYswsnbIgUS0KmS4fXay/+xrrgvLZZoxveFyJuylOTfNagCjF JPB/793SgwA4yx4GB5vFuUFRxEgGL5FGdr3PZqrs0BsFTJYrq07tBFmFxFBJkxv6 f079OZLfl2yiyHfmP0Vd5Db/2KNgSV6mHiaGVUC8N24pIhaieSxFM0mo1VEVPqOM GDIbIB9F2/4I1oowlDc7AgMBAAGjggJrMIICZzAOBgNVHQ8BAf8EBAMCBaAwHQYD VR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0O BBYEFBFrCsnHCivWQYZK4Eut6fkDyU5HMB8GA1UdIwQYMBaAFKhKamMEfd265tE5 t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29j c3AuaW50LXgzLmxldHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2Nl cnQuaW50LXgzLmxldHNlbmNyeXB0Lm9yZy8wIAYDVR0RBBkwF4IVbWNvdHRvbi5t aWNyb2R1aW5vLmNuMEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEB MCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBBQYK KwYBBAHWeQIEAgSB9gSB8wDxAHYAXqdz+d9WwOe1Nkh90EngMnqRmgyEoRIShBh1 loFxRVgAAAFwvSUmyQAABAMARzBFAiAQzuHiqrgx2890QrvBRlapUnZC11roa1lu 0q1ucmqbQQIhAI4ap0ueJu3kV2cgr42FyDlpStYv9a5O+lFerKJKH/glAHcAB7dc G+V9aP/xsMYdIxXHuuZXfFeUt2ruvGE6GmnTohwAAAFwvSUnBgAABAMASDBGAiEA 5zLMJJSlp5sKqu3CVI+RB87tK0aKN1SIuFkk1oF0fHsCIQCj6ED2hoETkjtCzYDd 7swZwiS228TCscDiYZrt86AewzANBgkqhkiG9w0BAQsFAAOCAQEAMm+vnrtCOO40 bgXjCUU6XvbJdxsKJt5MbzOUvQko6Cl1Z+rpjVK882wwUtViuGzsmp9mArpLe8ak 5cTHYAi1i72dw1Rqy4HaAs/ZQ7bi2KoFd4M7kQRRjP0bC8jAh+wkpWwqB/UB0eo0 JT2ae2lm3Oi13R1mstNVUEhQ8OujEWPavxcd/T4+Qucuvr1K3tLgVbmFRAlmAv4r 8jBdvZBSJ7Z0U/+uIDCSb35zMBiiK9RUmkuNSbIoJrzS0CMf3XnpmROqiIFRyiqE IDANhpSs1z0A5/78bgm1AD/bbmqzwsO22NuOJ2ngd7++UJX3G28wGKkaF+56u/NS 2D+hILJzww== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA1mu4Uwbdo/YbZ6qenZEJ iOXpi2qmIh3TdIH2kDBGkuX+ek8Wgytvtq6NjzUPI/9e3AhHvcTgCqdwCvXRZCAI bKN23UeEyOwup8vWqIWU5D436bKs9zCdwLROKS2rRRzeoAl3RS/BYVDX4PMpxsIj PxSn2vP/J86344/xFbn982xd+Wb9DXWDaG6dpYF4rlD/IoynDK0MNVdy4vksazqG 7Mh6U5+j7QbLU0RyZI72DbNjv5X4VezEPz1MEBRsDWgH5RaM7/LBFddgwoBfWp0y Kk+Ob3lmWWHySbSw9LqoJZnZ6JTfSK9RaFXuxEtWBkg0rpcBPveFpQ8Dy9JK0MFP /c902ChmojuIUHDcpzR4R2gdrrWth2DA8osOTeERV73XYvY9CdSuNm2DNZZJq/9q SNcFLLz+jC+tSd1klYQew9+6fmtCscmV9CjxwVbF3ULz8BaeMNOmuqeOVEVKzoxc dwvU71n2SEkM+Z9pvR9izCydsiBRLQqZLh9drL/7GuuC8tlmjG94XIm7KU5N81qA KMUk8H/v3dKDADjLHgYHm8W5QVHESAYvkUZ2vc9mquzQGwVMliurTu0EWYXEUEmT G/p/Tv05kt+XbKLId+Y/RV3kNv/Yo2BJXqYeJoZVQLw3bikiFqJ5LEUzSajVURU+ o4wYMhsgH0Xb/gjWijCUNzsCAwEAAQ== -----END PUBLIC KEY-----
ASN.1 decoded
[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 306997780527325638363961176058564959015700 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-09 01:34:53 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-07 01:34:53 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'mcotton.microduino.cn' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 874760468555944336931917016016898833294943128809733140690138715618349317311467556412121963064036957891229878964405159845346961267155472416823964590293462773919089957369010997946246238349563059511192558502585491172485694733481782687646444347400807687905811084682721273208776717851515433842421282925181689331406036688846142194342690908367618634444006583114582518529457582353091539753918131529071225482049071197901095675194484421605861423869330890856779809187807747561093490896660929872171036080025209120771706746305086293845094270511277572529355118822089001849953116108269914539505131738053187551500715549854318494183149523849424257698323568960630447143951936717261975481794463029995375368279659190287437433046640519728972958080603730861783789020550968515236036403267935589382084778766777759907330337485455344103204034307490426652160739282746844541077820286137826298780657977772257980835853215841721766173731006669496113582206006364872877442048337293013134529543325535760290103780535075557675772818016247602738974417033651768468435082226308911957045408988771086307972693616703282454422610548551075277495124151406241652146190572601085351257390535894505147612494627957527535927126850923475403277548907452452679061851318262098839483987771 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits) 05a0 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes) 116b0ac9c70a2bd641864ae04bade9f903c94e47 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (25 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mcotton.microduino.cn' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f10076005ea773f9df56c0e7b536487dd049e0327a919a0c84a11212841875968171455800000170bd2526c90000040300473045022010cee1e2aab831dbcf7442bbc14656a9527642d75ae86b596ed2ad6e726a9b410221008e1aa74b9e26ede4576720af8d85c839694ad62ff5ae4efa515eaca24a1ff82500770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c00000170bd2527060000040300483046022100e732cc2494a5a79b0aaaedc2548f9107ceed2b468a375488b85924d681747c7b022100a3e840f6868113923b42cd80ddeecc19c224b6dbc4c2b1c0e2619aedf3a01ec3 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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