ubwins.cse.buffalo.edu
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:1c:82:9c:a8:65:89:c4:fa:15:3e:ac:eb:69:ee:a9:ae:22 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=ubwins.cse.buffalo.edu
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:1c:82:9c:a8:65:89:c4:fa:15:3e:ac:eb:69:ee:a9:ae:22Serial Number (int): 271038377122318482817644749839096749862434
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: f8:b2:66:0b:91:da:92:c9:08:97:0c:10:65:b6:3c:13:84:79:a0:e8
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 83:3b:2f:1c:3e:d2:40:7a:5d:bf:e0:54:cc:29:27:07:e5:04:a6:43
Fingerprint (sha256): 04:8c:fc:e5:4a:42:50:87:09:fc:9c:37:65:47:17:be:c0:7e:7f:c7:96:4e:42:60:11:fe:d3:00:aa:24:9e:2c
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate ubwins.cse.buffalo.edu
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for ubwins.cse.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
ubwins.cse.buffalo.edu
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Certificate
The complete raw certificate details for ubwins.cse.buffalo.edu in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGFzCCBP+gAwIBAgISAxyCnKhlicT6FT6s62nuqa4iMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODA3MDkwMzQzMDZaFw0x ODEwMDcwMzQzMDZaMCExHzAdBgNVBAMTFnVid2lucy5jc2UuYnVmZmFsby5lZHUw ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDU9XtC/ldZFWzs4qDC3QC7 sZ+tKM3dW/rFwrKAejQZQ4q2FwWjysUi2U269j4LWwCjDuFcNan3V05sKsf6FN8F lsbg3skmwukpPn16c4Vywy6A0v4gXAkVXRr0idcTgH71Pws9VEDPXa5yJVtQ4ca1 A22Ng98wpUv3/1N0oUHlgx388A6JgwF8CZzLPd6SVJVsfY9AmfCb6Q0M7RUtWgwy +INZTEv3vyb9LmM+/1pWbNgHPzoV4bzYzx5fQjuDUKd68yISNEA0SZKms9TX4aC/ LQ3v/dOrgvuE56OrebEBZ+X3QMeRbKMu107y691PvnRCAfbE0gLJYM8m6O+KABYh AgMBAAGjggMeMIIDGjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUH AwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFPiyZguR2pLJCJcM EGW2PBOEeaDoMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsG AQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNl bmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNl bmNyeXB0Lm9yZy8wIQYDVR0RBBowGIIWdWJ3aW5zLmNzZS5idWZmYWxvLmVkdTCB /gYDVR0gBIH2MIHzMAgGBmeBDAECATCB5gYLKwYBBAGC3xMBAQEwgdYwJgYIKwYB BQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIGrBggrBgEFBQcCAjCB ngyBm1RoaXMgQ2VydGlmaWNhdGUgbWF5IG9ubHkgYmUgcmVsaWVkIHVwb24gYnkg UmVseWluZyBQYXJ0aWVzIGFuZCBvbmx5IGluIGFjY29yZGFuY2Ugd2l0aCB0aGUg Q2VydGlmaWNhdGUgUG9saWN5IGZvdW5kIGF0IGh0dHBzOi8vbGV0c2VuY3J5cHQu b3JnL3JlcG9zaXRvcnkvMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHUAKTxRllTI OWW6qlD8WAfUt2+/WHopctykwwz05UVH9HgAAAFkfVmtHgAABAMARjBEAiBsDgn1 3NL2AVpAPT17pXr46S5BS4nCgHXxauF0XZ/GowIgf+BKUXxOEPYqBn4+QkdMegXl /Jvy2Z06J/NEMH5eXSIAdwDbdK/uyynssf7KPnFtLOW5qrs294Rxg8ddnU83th+/ ZAAAAWR9WbEmAAAEAwBIMEYCIQCz2dPNqEnCOxB6zS5qoQtsRo8tzNi5bJe0XQx5 wwsBhQIhAP+YqkI2HG5aPgBo/LXjuJFWmswu0VrGC2r6cXde1r3MMA0GCSqGSIb3 DQEBCwUAA4IBAQBLruTdgjfDsNhrTJ50YF990oNfvXmtj9KwuZuYcsDZ8VPicDTo Wf9eFDnNxL555AP/6BNVpz3cmQIxeecXj83CHi/qSsnLuzCXQbypDa5X+IDZag/j xF7bo58kX/UsTAG19yd054OYOSpG2/su6ogyzfZYZOjkbUe3qe59vPtPRjNb8Luv eCY7ylbunyIANRjbsLYsQLFf6IAvJXQTnIg3c+tK5h8NQiQnNxWJeUEIGZU9/5+3 jcnAblcDX7huyt55Zdc8Wz2MruE053Q+K4m5tGJwxn056PWRcd1/+RVUkNbFYbuK t+OHOtfKC22dfvebxc171/wjHKo90ruEeivy -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1PV7Qv5XWRVs7OKgwt0A u7GfrSjN3Vv6xcKygHo0GUOKthcFo8rFItlNuvY+C1sAow7hXDWp91dObCrH+hTf BZbG4N7JJsLpKT59enOFcsMugNL+IFwJFV0a9InXE4B+9T8LPVRAz12uciVbUOHG tQNtjYPfMKVL9/9TdKFB5YMd/PAOiYMBfAmcyz3eklSVbH2PQJnwm+kNDO0VLVoM MviDWUxL978m/S5jPv9aVmzYBz86FeG82M8eX0I7g1CnevMiEjRANEmSprPU1+Gg vy0N7/3Tq4L7hOejq3mxAWfl90DHkWyjLtdO8uvdT750QgH2xNICyWDPJujvigAW IQIDAQAB -----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 271038377122318482817644749839096749862434 . . . . . . . . [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 2018-07-09 03:43:06 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-10-07 03:43:06 +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 'ubwins.cse.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 26883572087660356765094541273366539952807838903122534105105976512515296910215939327860207947088108784048469920347837069119500551452095534939544337920584413565701043226888282734977638361917767605099816501092208551594382500130916706220239539206417123425687490504617108989534850346699871215871080415914215436241407392096940048031140477872182539912529170904453695866360059526661194978133373475661739024084100111829540916320937323704542536034434922698580683435695712196591295675315649293713337231689561501409411875246752788056686568362998362207037293811075947611485448486578140446254502903499051268967362362187176344557089 . . . . . . . . . . . . . . . . . . . . [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) f8b2660b91da92c908970c1065b63c138479a0e8 . . . . . . . . . . . . . . . . [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 (26 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ubwins.cse.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 (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 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f478000001647d59ad1e000004030046304402206c0e09f5dcd2f6015a403d3d7ba57af8e92e414b89c28075f16ae1745d9fc6a302207fe04a517c4e10f62a067e3e42474c7a05e5fc9bf2d99d3a27f344307e5e5d22007700db74afeecb29ecb1feca3e716d2ce5b9aabb36f7847183c75d9d4f37b61fbf64000001647d59b1260000040300483046022100b3d9d3cda849c23b107acd2e6aa10b6c468f2dccd8b96c97b45d0c79c30b0185022100ff98aa42361c6e5a3e0068fcb5e3b891569acc2ed15ac60b6afa71775ed6bdcc . . . . [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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