mcotton.microduino.cn
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:e1:3b:c7:c2:81:12:50:2e:54:15:62:ff:a4:ea:cf:40:aa 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): 04:e1:3b:c7:c2:81:12:50:2e:54:15:62:ff:a4:ea:cf:40:aaSerial Number (int): 425092137948091863068740727833811068338346
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 26:7d:8b:a0:d7:43:b2:a5:ad:d0:e9:92:ca:30:d4:1a:86:73:ff:b4
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): e9:d6:2b:99:19:e2:0b:eb:c1:d0:cf:63:49:92:c4:3a:7d:3c:11:92
Fingerprint (sha256): 3b:3f:ec:02:eb:41:4b:e4:9c:89:fb:87:c5:70:25:77:d8:2d:b8:b3:fa:ca:4a:bc:52:af:c2:32:e8:84:a2:04
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
8 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----- MIIGDTCCBPWgAwIBAgISBOE7x8KBElAuVBVi/6Tqz0CqMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODAyMDgwMTUxMjhaFw0x ODA1MDkwMTUxMjhaMCAxHjAcBgNVBAMTFW1jb3R0b24ubWljcm9kdWluby5jbjCC AiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAPCaIMzT//yDsctW+mhNtBhT IIObeJtJhVptFwP9exZsLJnCqmgrFJD9kxOIOy/4DFR+WmPLwCw4mTep78KUp4MO EmkPrbmZOmTDB2H5XijdjRIUoXxqDomcS6+vGZRdWOj51VfiTOEvAHVfbrrnOErO Auxp7abOzYnTv3uCIeBy+Vs+CbKeB4Nct5Xf4lDXJmHHIirKf549Oh+FOYOD/1j3 5OHhALxjPdwdWBGuyFbpf8RzGMwTClQ5Y0Fd6y9rEHETsM8Qu6T6itGHuKClJvLP LChoVFcreTA+ITniMWSaygjQyJDEAA0b2r2jU+xad7wapFjAHNy8h9H2OOeTWVqo uPZNKsT7msKk9r45IKXYnvoA2dVtMT1VoCN1UI0gIlrKunYK/0L4TAkAqCPyWjQw /ancF6IGIUAqCZSgoK8xBp1bTwZYQM+KLUGw9qxa3wYld88aDkqlxBBg1m7o15DT 519//2yRnRGP3XNV5aISrE48jPfqHHQUv/PfC505ratcllDC3Zpb/NsmCUTPgKOg R/+M7tDSLX/2JD/oU8+Vq+wfXieUIgxN225HQZdpAFr7nY9o+A4ybtZXFN/TBWip hl1NLBQIgI1qltzjtIkYqdcEzef+JEqJmTjO4SbemeX9l4kmyIYhvmpNTd2n1Bxh PouTsszDCaJVIikMFIe9AgMBAAGjggIVMIICETAOBgNVHQ8BAf8EBAMCBaAwHQYD VR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0O BBYEFCZ9i6DXQ7KlrdDpksow1BqGc/+0MB8GA1UdIwQYMBaAFKhKamMEfd265tE5 t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29j c3AuaW50LXgzLmxldHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2Nl cnQuaW50LXgzLmxldHNlbmNyeXB0Lm9yZy8wIAYDVR0RBBkwF4IVbWNvdHRvbi5t aWNyb2R1aW5vLmNuMIH+BgNVHSAEgfYwgfMwCAYGZ4EMAQIBMIHmBgsrBgEEAYLf EwEBATCB1jAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcw gasGCCsGAQUFBwICMIGeDIGbVGhpcyBDZXJ0aWZpY2F0ZSBtYXkgb25seSBiZSBy ZWxpZWQgdXBvbiBieSBSZWx5aW5nIFBhcnRpZXMgYW5kIG9ubHkgaW4gYWNjb3Jk YW5jZSB3aXRoIHRoZSBDZXJ0aWZpY2F0ZSBQb2xpY3kgZm91bmQgYXQgaHR0cHM6 Ly9sZXRzZW5jcnlwdC5vcmcvcmVwb3NpdG9yeS8wDQYJKoZIhvcNAQELBQADggEB AEOQx1TBddH7hqBSye7wLzEUs0BFLeEJY8zdbJAxGPk6EKT1BOLuMSWmdziUX3To dbep2IlMSbV/ONEyQCrxewuCON/RVatrSEx6RW1DF8xMAACzmLYUih3Zh7lACjXF 8BBoKTM0BHNt+p+k0QstYwr6oD/h8hGMH3FABtbdcxl2ApXenUNxYI9oOtgEYgbx Tr3YCvOcEXXsYXCGPw61Yy/bkSTeCCdU5ZRuHuwzDcP4dDkt3L3k/8uO7w0SbtCy JeicSAvwC6rUefKUJAXnj1FVkrJ+ffZMGDXIdLqmoC0Ut2HjWCcgN1FOjJ+cAD/q yBQsoL6KdqNp57PEo4VaZ7o= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA8JogzNP//IOxy1b6aE20 GFMgg5t4m0mFWm0XA/17FmwsmcKqaCsUkP2TE4g7L/gMVH5aY8vALDiZN6nvwpSn gw4SaQ+tuZk6ZMMHYfleKN2NEhShfGoOiZxLr68ZlF1Y6PnVV+JM4S8AdV9uuuc4 Ss4C7Gntps7NidO/e4Ih4HL5Wz4Jsp4Hg1y3ld/iUNcmYcciKsp/nj06H4U5g4P/ WPfk4eEAvGM93B1YEa7IVul/xHMYzBMKVDljQV3rL2sQcROwzxC7pPqK0Ye4oKUm 8s8sKGhUVyt5MD4hOeIxZJrKCNDIkMQADRvavaNT7Fp3vBqkWMAc3LyH0fY455NZ Wqi49k0qxPuawqT2vjkgpdie+gDZ1W0xPVWgI3VQjSAiWsq6dgr/QvhMCQCoI/Ja NDD9qdwXogYhQCoJlKCgrzEGnVtPBlhAz4otQbD2rFrfBiV3zxoOSqXEEGDWbujX kNPnX3//bJGdEY/dc1XlohKsTjyM9+ocdBS/898LnTmtq1yWUMLdmlv82yYJRM+A o6BH/4zu0NItf/YkP+hTz5Wr7B9eJ5QiDE3bbkdBl2kAWvudj2j4DjJu1lcU39MF aKmGXU0sFAiAjWqW3OO0iRip1wTN5/4kSomZOM7hJt6Z5f2XiSbIhiG+ak1N3afU HGE+i5OyzMMJolUiKQwUh70CAwEAAQ== -----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 425092137948091863068740727833811068338346 . . . . . . . . [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 2018-02-08 01:51:28 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-05-09 01:51:28 +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 981570779030385533602266633863634008771937297300751471702591906962173265714058202736276392078203765346653030528471149827179375688292414672244770575806915322848710932862256325291761347911593454945814211194455780707556119371211222102715024352332491239152639065789441408600551058572964032593239567271166190150588765859880366389238921086742463418411220543374103656109338993599076975505198490486836701154619215879203645603021414537909105049893551900262290901926863219190332747828147751746970576404777355150407076972424447293282641352350947228170940911593739781931509466210653146280520072424734006261413337827212483178006312619566092023825156083031982936485240395370855807989351520274229036514220235955667459427324927445450557177649498402676784710526570185495818584341858664481916302493728710452661317776483157971236784018308132884542551216956333221701088298220943270153824704436843670285999407822038394045405567372135122783317522736022640991785479451708403416855028886280908992907537622442452670313569272215342618908147605205037802908008865579864501147056392451681794768562461603553031047854684275955484879155513380196316209343597125052921107034011520487054461799489245280471500434047480261650690135593398633250211678172331112147660867517 . . . . . . . . . . . . . . . . . . . . [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) 267d8ba0d743b2a5add0e992ca30d41a8673ffb4 . . . . . . . . . . . . . . . . [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 (246 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 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . [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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