mrc-epid.cam.ac.uk
Issued by R3
About this certificate
This digital certificate with serial number 04:41:e7:15:90:b1:52:39:44:04:9b:7b:2e:5a:55:d7:22:bd 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=mrc-epid.cam.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:41:e7:15:90:b1:52:39:44:04:9b:7b:2e:5a:55:d7:22:bdSerial Number (int): 370874661216878146201284234607397359264445
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: b4:ff:1d:66:c2:d1:3b:44:75:fd:2e:59:02:03:d2:a4:af:8f:86:f6
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 9e:65:d4:63:39:04:76:16:e6:a1:af:b7:63:c0:80:80:e1:a8:7a:30
Fingerprint (sha256): 00:9e:4f:4d:ab:d9:96:1b:68:53:60:15:db:61:55:eb:52:b0:81:5a:bd:4a:62:c2:95:5a:8c:af:84:0f:17:de
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate mrc-epid.cam.ac.uk
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for mrc-epid.cam.ac.uk
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
mrc-epid.cam.ac.uk
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Certificate
The complete raw certificate details for mrc-epid.cam.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFKjCCBBKgAwIBAgISBEHnFZCxUjlEBJt7LlpV1yK9MA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzA0MjAwODQzNDdaFw0yMzA3MTkwODQzNDZaMB0xGzAZBgNVBAMT Em1yYy1lcGlkLmNhbS5hYy51azCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoC ggEBAMZFGR5JFEqveosEK6mBxHqfGgo4IJzm5eZXbFV+8pMmZvJQiysEXk4Hb2m9 T16/1zB0lHtifMFPJf8It0BIoRWEZpebY1AwhaT8KfO8EEOaFG/3vHJj71iKRU2g +D5bFSAVxTVkS4P3/5wvXjtfPlcr9LMjlVkqoj6oqRkl3V82Nn3pCyabih0TiwQO U5ZRxcbQhHjK+O1nGAJ53WZ5MOhZpkn7TTnIQ1HY+gH2E/ckoXWcjxuZpCbZ569D 71RvK+zjqY0JBQnXnoLCprlyOOmLrGb+xBtqeDfCxXV6p7zsTscl/Qz+Nj5Fis9i oKrYcyRKLdY6TdCHE4miCxtYH3ECAwEAAaOCAk0wggJJMA4GA1UdDwEB/wQEAwIF oDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAd BgNVHQ4EFgQUtP8dZsLRO0R1/S5ZAgPSpK+PhvYwHwYDVR0jBBgwFoAUFC6zF7dY VsuuUAlA5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRw Oi8vcjMuby5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNy Lm9yZy8wHQYDVR0RBBYwFIISbXJjLWVwaWQuY2FtLmFjLnVrMEwGA1UdIARFMEMw CAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9j cHMubGV0c2VuY3J5cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHUAtz77 JN+cTbp18jnFulj0bF38Qs96nzXEnh0JgSXttJkAAAGHngxuXAAABAMARjBEAiB3 VcQFHBkLtRQ8uE+o5Tx5W7YI9xqyUeJAGDb2VDaIxgIgLrkso1CM9XiqR9ko0ncn RpOb7Il/DNq7YAO6Ta9jbEEAdwDoPtDaPvUGNTLnVyi8iWvJA9PL0RFr7Otp4Xd9 bQa9bgAAAYeeDG6PAAAEAwBIMEYCIQCSfjDHe6AkygEuguc2y/tuqVnvU6eFHHCr rq2Nk3hBmAIhAJObut5PO2s3h3XSjMqW29x0ZXNguspatZrhS66hqrVUMA0GCSqG SIb3DQEBCwUAA4IBAQBeoIsEr7mP4PBSRrIkvCVODT6ss4WmqK8VeFZ8W5Lu4/8v Nugi+Jny7N11xIgu1z+ExFb3VCXbB5X8n9l8JPLekR/7nHOOYuOgvHTCHoEOfquK 7tB7hpyIF1M2ahQzYzsEoA0DJ9f6hoW7r0+Zf90odFHB+6OLNwtn13hmL7p6L/j+ JmzcMsYF5w5HDvmNHuwlsf/eLnK9LBVHOhfQuK1Wg6j/o8MKUAEHVC4XOmsZseIq C0yQyIlq8uYNJqLqeKIR+Ai8NciKP1NKRM6tbRaOhi0KfL7uAAtSQ/Tv7/mGHWkF PCFkAIK4ewTrUm+nQK9dz40KU5Xxv4WsaP0MSnPC -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxkUZHkkUSq96iwQrqYHE ep8aCjggnObl5ldsVX7ykyZm8lCLKwReTgdvab1PXr/XMHSUe2J8wU8l/wi3QEih FYRml5tjUDCFpPwp87wQQ5oUb/e8cmPvWIpFTaD4PlsVIBXFNWRLg/f/nC9eO18+ Vyv0syOVWSqiPqipGSXdXzY2fekLJpuKHROLBA5TllHFxtCEeMr47WcYAnndZnkw 6FmmSftNOchDUdj6AfYT9yShdZyPG5mkJtnnr0PvVG8r7OOpjQkFCdeegsKmuXI4 6YusZv7EG2p4N8LFdXqnvOxOxyX9DP42PkWKz2KgqthzJEot1jpN0IcTiaILG1gf cQIDAQAB -----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 370874661216878146201284234607397359264445 . . . . . . . . [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 2023-04-20 08:43:47 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-07-19 08:43:46 +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 'mrc-epid.cam.ac.uk' . . . . . . . . [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 25029257935386303449823627758156754649299980284068469241639169974648842588893816977347526375364798584461433389403877110435000379211588415742978822177726072828425543658082729368412564189441029738405312976667152036367720495471833012090980382556006153642757299469523120686284486234620158193514930822540331911364307188926130599895468039870766554145843688106763760600039028262319733022438962347532224558493173740381120400014936805216369417971790348428833819579149858056766856988141257768477220673967656689443043183147309898926933333112720107263352457821626108845610510255793210243202005772540599330295730256917731789512561 . . . . . . . . . . . . . . . . . . . . [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) b4ff1d66c2d13b4475fd2e590203d2a4af8f86f6 . . . . . . . . . . . . . . . . [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 (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mrc-epid.cam.ac.uk' . . . . . . . . . . . . . . . . [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) 00f0007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb499000001879e0c6e5c000004030046304402207755c4051c190bb5143cb84fa8e53c795bb608f71ab251e2401836f6543688c602202eb92ca3508cf578aa47d928d2772746939bec897f0cdabb6003ba4daf636c41007700e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e000001879e0c6e8f0000040300483046022100927e30c77ba024ca012e82e736cbfb6ea959ef53a7851c70abaead8d93784198022100939bbade4f3b6b378775d28cca96dbdc74657360baca5ab59ae14baea1aab554 . . . . [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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