sciwrite.mit.edu
Issued by R3
About this certificate
This digital certificate with serial number 03:59:a0:ac:ab:c8:81:3c:f2:06:23:00:5e:d3:ce:c9:2d:60 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.
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- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=sciwrite.mit.edu
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:59:a0:ac:ab:c8:81:3c:f2:06:23:00:5e:d3:ce:c9:2d:60Serial Number (int): 291835561489807189690159286788295104212320
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: e8:70:03:18:80:4c:c0:60:50:8d:78:a8:f1:dd:de:17:57:7b:c2:d7
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 4d:e5:8e:e7:85:60:44:43:31:a5:ca:19:f9:93:cb:97:e2:f4:4d:61
Fingerprint (sha256): 00:58:e6:f8:5d:da:d3:e1:e3:aa:e6:90:1a:57:87:16:d2:e0:cd:22:d6:aa:ab:68:1c:b3:31:e4:3d:49:8a:5c
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate sciwrite.mit.edu
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for sciwrite.mit.edu
Public Key Algorithm
RSA
Key Size
2048
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
sciwrite.mit.edu
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Certificate
The complete raw certificate details for sciwrite.mit.edu in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFJjCCBA6gAwIBAgISA1mgrKvIgTzyBiMAXtPOyS1gMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzAzMTcwNzA1NDFaFw0yMzA2MTUwNzA1NDBaMBsxGTAXBgNVBAMT EHNjaXdyaXRlLm1pdC5lZHUwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIB AQDlOe39WFJhiSVASNpGwM5yzcuKFn0P4/xI0q6Al9Y6VNiHM6a+PTdTiEgSQVsl 0Zk36kR7GVGrDZ5IalcLU6LFhEG1AwSuKazoVHgRT/Q+wp2rpbFWuonQdrp8kZss W4+0PrUl1VRnMJRJ+e/AXzuwuU5JRVZLGbJuPsh5ZPe22OuxyQq2qHVxZWhPAqx8 aaj2rxk7aTkBzwEjTS3IEO8dstApPY9eQiDRpSWvknGPoeHmvZteFl0l+vXVYqMv lFIVEe4zz5QdLYw5CrdPr1YlLcBCHK3QuTAO6WvZDh/iXje61jP+4vJVm5nLZs8x OR9wsja3o8ConTRJlpETOjclAgMBAAGjggJLMIICRzAOBgNVHQ8BAf8EBAMCBaAw HQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYD VR0OBBYEFOhwAxiATMBgUI14qPHd3hdXe8LXMB8GA1UdIwQYMBaAFBQusxe3WFbL rlAJQOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDov L3IzLm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5v cmcvMBsGA1UdEQQUMBKCEHNjaXdyaXRlLm1pdC5lZHUwTAYDVR0gBEUwQzAIBgZn gQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5s ZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHyAPAAdQC3Pvsk35xN unXyOcW6WPRsXfxCz3qfNcSeHQmBJe20mQAAAYbummUsAAAEAwBGMEQCIBl3qJvi J6RjSDGDsD3OoQlVqBLWNfZ3eMcW+NMu8ipsAiAEN9EQ/YMH2K4m7nipYT8yZbrz MEDXgstvvLkbAkVEGQB3AHoyjFTYty22IOo44FIe6YQWcDIThU070ivBOlejUutS AAABhu6aZT4AAAQDAEgwRgIhALnoW+juto0+F9I3fTrNzP+13YUaYm8m86ZmwYUK kQX1AiEA6VIt+RzWLTb3K6OucNRsRRbfV2iJ/vbZOQBx5PQv95wwDQYJKoZIhvcN AQELBQADggEBAGoGKYzeT9yYjYxYCHz3Pfa6XRDJ8cA9jALalJKa5AQbm9q9u3YL qd78s08Q4bEo2cMHB9+GbkUWXuHWdWUDwRbWPc62/Uhfq2Fxm2OMWximqXYuE2qu 2qg/lGzeFXFdexQmlOCSVbeSHUysYpoAFdkMW93wIcE4X4zz/9rWcFR4BJyZHDuZ Qk9a+CBrH5KIF+hDdw7LHWOcDxYZVOmG5TQCSOnKEJnDI/G1XMBuAyS/4IQzS+0M p4tE7XNk1ICfi53LZKVnIo0xJOWHlj15ZLPltQyNTQICeLZkKeOFmE6HDk3Fm3Cq /jmCIlDcho8t2jCzubPACWNf63ivhKtHZ4Q= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5Tnt/VhSYYklQEjaRsDO cs3LihZ9D+P8SNKugJfWOlTYhzOmvj03U4hIEkFbJdGZN+pEexlRqw2eSGpXC1Oi xYRBtQMErims6FR4EU/0PsKdq6WxVrqJ0Ha6fJGbLFuPtD61JdVUZzCUSfnvwF87 sLlOSUVWSxmybj7IeWT3ttjrsckKtqh1cWVoTwKsfGmo9q8ZO2k5Ac8BI00tyBDv HbLQKT2PXkIg0aUlr5Jxj6Hh5r2bXhZdJfr11WKjL5RSFRHuM8+UHS2MOQq3T69W JS3AQhyt0LkwDulr2Q4f4l43utYz/uLyVZuZy2bPMTkfcLI2t6PAqJ00SZaREzo3 JQIDAQAB -----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 291835561489807189690159286788295104212320 . . . . . . . . [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 'R3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-03-17 07:05:41 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-06-15 07:05:40 +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 'sciwrite.mit.edu' . . . . . . . . [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 (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 28937138010833088904673015047839290179189330387579459652779248088541619983210995221343807312282524335135314787042189096693313589188174933095399736012557688725985558517784113589227046338647375668567652632680588662763459951604394165301203311088747271181614987495885682728425545695055068338715324698725548424436059212614326087632362510553173708040435618042848873219687461776977614239721838485578518654218653312493130227883674779817244116654066697115958673572632691909317499194711756566312000697091222809676273379653666921109277930460799017132583521938869765328146036412034961804721015591894093803809984499378009354680101 . . . . . . . . . . . . . . . . . . . . [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) e8700318804cc060508d78a8f1ddde17577bc2d7 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (20 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'sciwrite.mit.edu' . . . . . . . . . . . . . . . . [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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000186ee9a652c000004030046304402201977a89be227a463483183b03dcea10955a812d635f67778c716f8d32ef22a6c02200437d110fd8307d8ae26ee78a9613f3265baf33040d782cb6fbcb91b024544190077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000186ee9a653e0000040300483046022100b9e85be8eeb68d3e17d2377d3acdccffb5dd851a626f26f3a666c1850a9105f5022100e9522df91cd62d36f72ba3ae70d46c4516df576889fef6d9390071e4f42ff79c . . . . [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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