learning.buffalo.edu
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:b0:e5:ad:7a:01:bd:72:bf:1c:b4:82:f1:a0:1a:8e:5e:30 was issued on by Let's Encrypt.
With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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=learning.buffalo.edu
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:b0:e5:ad:7a:01:bd:72:bf:1c:b4:82:f1:a0:1a:8e:5e:30Serial Number (int): 321531848326349012964419577639641291841072
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: fc:4a:d0:b3:1a:b7:4f:27:09:d5:47:ce:3c:0d:46:33:fe:f1:5e:42
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): cf:9c:76:6d:55:7e:2e:ea:50:6d:c9:98:3f:ba:55:88:3c:eb:c7:18
Fingerprint (sha256): 00:95:ff:8d:aa:c5:a3:27:f7:e8:05:63:b6:24:92:8c:9e:b2:75:fa:f4:da:0c:bc:6c:d9:ba:cb:4e:50:fb:93
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate learning.buffalo.edu
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for learning.buffalo.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
learning.buffalo.edu
studio-learning.buffalo.edu
studio-learning.buffalo.edu
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Certificate
The complete raw certificate details for learning.buffalo.edu in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFezCCBGOgAwIBAgISA7DlrXoBvXK/HLSC8aAajl4wMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAxMzAxNjQyMTNaFw0x OTA0MzAxNjQyMTNaMB8xHTAbBgNVBAMTFGxlYXJuaW5nLmJ1ZmZhbG8uZWR1MIIB IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA05bO8Fry/u62dHfLz5sVFxCJ iE/Lfs+hfe1ICeBy2RNWqmFefDrjnfuv/2fo1Lgrlf/SMM9pDe6fNEZ6ZxMPfBcq O1mL2JQ8IIhOka7SXrlY5fXgAjhERkpPz94EaEAVP35f+DvKGz2DX3QogcX/3505 1Fte9uLntzzbssmAYi1Y6DnKO7Tw2PTO9Kj05I41hdWeiaMOf2rMNGN65cVFG32u qgwBj4Kt8zErTzUzJQE/7r4COyKB7VWxZ9D4Ccxy3k+OKIZLRzPR78JjStphm1VV buo0UYXXAmJJVgdEi2q9zKEVDZ3CaFoHC67ZW8IWceF7jqUqpHmhe5wX469aKQID AQABo4IChDCCAoAwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMB BggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBT8StCzGrdPJwnVR848 DUYz/vFeQjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEF BQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5j cnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5j cnlwdC5vcmcvMDwGA1UdEQQ1MDOCFGxlYXJuaW5nLmJ1ZmZhbG8uZWR1ghtzdHVk aW8tbGVhcm5pbmcuYnVmZmFsby5lZHUwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYL KwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlw dC5vcmcwggECBgorBgEEAdZ5AgQCBIHzBIHwAO4AdQDiaUuuJujpQAnohhu2O4PU Puf+dIj7pI8okwGd3fHb/gAAAWif2qniAAAEAwBGMEQCIG7mdY3r4GiifPeOfNCX Gbf6WnE7UNLXpYTIboL0E8KMAiAbl7fBRp3/Uo53gVlRs4Yr6Z7QP7LVRETAFfmr 2Urv0wB1ACk8UZZUyDlluqpQ/FgH1Ldvv1h6KXLcpMMM9OVFR/R4AAABaJ/ap+0A AAQDAEYwRAIgCSGMDbXjB2FiDarsFlfAVoh+SYfbPHEEft7uhigkeXoCIB9MOACH sMYNTWVJ6ijhhIGoHA8d12jhZkFViamZfaLFMA0GCSqGSIb3DQEBCwUAA4IBAQCC 29SgtEWg3/UWReGqjCHTTLK+rglfuCHq+nvW3pysdjpqBgQj85CGa/zfW8W5tBic Vnzubph8Y8JnK8d8LHeNphhVbkb1pFimy0eIHlQ2Q16WtoTi2a3T64Ka8luJLiRh S3hr6vKVYtRBT7Dn2xnMn5UnhIWninBxi/ip2U2fPt1xc2scGKWXkOtDtm/9+0i1 pS+6mRLgZbt0rfv3N8dEnwTgvJEk9pPdB4JxNFyc7i2gs2g00f7EzCsHO5LizABv FYhHDA29NZnrfzAAkTEPiJSbfdMhUZ8cRKyAg0Ud+GLraB7DhkjRQlFX+B5mQK/0 BDPtPKlLM1Z0XkIz+kXe -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA05bO8Fry/u62dHfLz5sV FxCJiE/Lfs+hfe1ICeBy2RNWqmFefDrjnfuv/2fo1Lgrlf/SMM9pDe6fNEZ6ZxMP fBcqO1mL2JQ8IIhOka7SXrlY5fXgAjhERkpPz94EaEAVP35f+DvKGz2DX3QogcX/ 35051Fte9uLntzzbssmAYi1Y6DnKO7Tw2PTO9Kj05I41hdWeiaMOf2rMNGN65cVF G32uqgwBj4Kt8zErTzUzJQE/7r4COyKB7VWxZ9D4Ccxy3k+OKIZLRzPR78JjStph m1VVbuo0UYXXAmJJVgdEi2q9zKEVDZ3CaFoHC67ZW8IWceF7jqUqpHmhe5wX469a KQIDAQAB -----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 321531848326349012964419577639641291841072 . . . . . . . . [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 2019-01-30 16:42:13 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-04-30 16:42:13 +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 'learning.buffalo.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 26710648719376468818255587895384190704986604343772715425143220904443966911899884689338137461805364733178993369498686351597826354602223953686007025980860349524714146268086782293175379844843255406472358034644381810339382604072739958361940970954239413884959286302280993913179002456086310127849492870680927044783768807765181963577992325657869231311477854436832537934644021248913798329646786013031093449354715351987813482278514533563908186217712225783746654718301870058684746949218511950575585950526579848751996075357476591106431506235024455021880506163502158036408824967565755388676772023100977184926115203120223140928041 . . . . . . . . . . . . . . . . . . . . [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) fc4ad0b31ab74f2709d547ce3c0d4633fef15e42 . . . . . . . . . . . . . . . . [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 (53 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'learning.buffalo.edu' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'studio-learning.buffalo.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 (243 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes) 00ee007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe000001689fdaa9e2000004030046304402206ee6758debe068a27cf78e7cd09719b7fa5a713b50d2d7a584c86e82f413c28c02201b97b7c1469dff528e77815951b3862be99ed03fb2d54444c015f9abd94aefd3007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f478000001689fdaa7ed0000040300463044022009218c0db5e30761620daaec1657c056887e4987db3c71047edeee862824797a02201f4c380087b0c60d4d6549ea28e18481a81c0f1dd768e166415589a9997da2c5 . . . . [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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