www.cast.ruhr-uni-bochum.de
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:b1:8e:12:32:97:bd:e2:bf:c7:7a:ca:70:e5:5c:57:3a:0d was issued on by Let's Encrypt.
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We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=www.cast.ruhr-uni-bochum.de
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:b1:8e:12:32:97:bd:e2:bf:c7:7a:ca:70:e5:5c:57:3a:0dSerial Number (int): 321755681603174459165719309780003621124621
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 3a:1d:38:c5:49:47:92:d7:e7:42:64:dd:8f:d5:85:60:9d:cc:56:91
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 58:1b:b6:74:f7:26:22:7a:39:a3:58:16:41:9f:c9:3d:dc:4c:65:2f
Fingerprint (sha256): 02:ae:cc:7b:2c:93:ee:48:37:cd:d5:8d:f9:8e:f2:89:38:47:0c:22:75:84:6b:6a:82:ca:e7:35:e0:e9:ff:a2
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.cast.ruhr-uni-bochum.de
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.cast.ruhr-uni-bochum.de
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
www.cast.ruhr-uni-bochum.de
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Certificate
The complete raw certificate details for www.cast.ruhr-uni-bochum.de in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFbjCCBFagAwIBAgISA7GOEjKXveK/x3rKcOVcVzoNMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA1MjgxOTUyNThaFw0x OTA4MjYxOTUyNThaMCYxJDAiBgNVBAMTG3d3dy5jYXN0LnJ1aHItdW5pLWJvY2h1 bS5kZTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAM5AOiIj8dIDG7pI TO9pjH15JQQQgfzwYETsFCEruBaFo0PIcA9z8kjZiseVMUA7yUnGb0aXkesk+D3S HLY5Nuv11GU1NiPPNICxQxvCppX/Vqf3dSEcnW5EBfKctETQRleyrjSFhonTennU dKo9JF4fyMC1GWGD31oZLCZ6prtaqXqkth2FkwMtnFu8VhDBKZrlVh2z+AGMexmR gedkV/O3koT5irFiz4+T2IevGAiX7M7mwm40zqUOU8j3ioAHFyby0n6LuCg3j7Xm E+XR+PW4dFudxpoMbe3vCqvc3ui1W9ZbsSuXYM4lPccM2StpBvj/z7ljURBjRCmV NowemRMCAwEAAaOCAnAwggJsMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggr BgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUOh04xUlH ktfnQmTdj9WFYJ3MVpEwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEw bwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMu bGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMu bGV0c2VuY3J5cHQub3JnLzAmBgNVHREEHzAdght3d3cuY2FzdC5ydWhyLXVuaS1i b2NodW0uZGUwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAm BggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEE AdZ5AgQCBIH1BIHyAPAAdgBvU3asMfAxGdiZAKRRFf93FRwR2QLBACkGjbIImjfZ EwAAAWsAN7HuAAAEAwBHMEUCIQCZMFNTxz0YSIjFho3ulfDLjywAk8Kw+26Du3Ku XNGybwIgEnOcVobipPNPbvjPtlckDKiU7JRpzitT9d9GzJP3vLIAdgApPFGWVMg5 ZbqqUPxYB9S3b79Yeily3KTDDPTlRUf0eAAAAWsAN7G7AAAEAwBHMEUCIQDDF3I0 NM/Vm8sjZDHuLpj77D4FvmPpIVHw0oGR950eGQIgC78o2Q6zgYAyWyC+pko+gE0d RFQ8XgYtP+H0Mn8q+/0wDQYJKoZIhvcNAQELBQADggEBAAH0ALkO+J8oSZd4s0ZY Yizl3r0FJlWBBKCGHJ5vRPXJkbJFUpi3yJVGe6rKJaOLgurTjC8LM7VSi9eZh2X3 AgMDZeKH4uX13/v1uIVJFJA3omdoroV2lGMhv1WrfhfJ99TSoXwxfyLNi9YzKc1v +Eyix1q1tN9W2kt7jRSrhze52DyB/XkMtGte6pdM20pPB3NtQFqPt807zup5+8yt PkimYX4o811Ov5xTLEXXyG7KV/bJhMk+QVYi+c35/cQd9KCXZdBqebWP2LJDhO7j XQbM7pJb7bVDhZxoh8XiW1NiucVDTOtENMOmDtHjPx2Lu2QcND/D5Yo/8gjInSyC kGI= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzkA6IiPx0gMbukhM72mM fXklBBCB/PBgROwUISu4FoWjQ8hwD3PySNmKx5UxQDvJScZvRpeR6yT4PdIctjk2 6/XUZTU2I880gLFDG8Kmlf9Wp/d1IRydbkQF8py0RNBGV7KuNIWGidN6edR0qj0k Xh/IwLUZYYPfWhksJnqmu1qpeqS2HYWTAy2cW7xWEMEpmuVWHbP4AYx7GZGB52RX 87eShPmKsWLPj5PYh68YCJfszubCbjTOpQ5TyPeKgAcXJvLSfou4KDePteYT5dH4 9bh0W53Gmgxt7e8Kq9ze6LVb1luxK5dgziU9xwzZK2kG+P/PuWNREGNEKZU2jB6Z EwIDAQAB -----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 321755681603174459165719309780003621124621 . . . . . . . . [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 2019-05-28 19:52:58 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-26 19:52:58 +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 'www.cast.ruhr-uni-bochum.de' . . . . . . . . [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 26036762378268008027117446614702593953292239047654525529852598686916535998585508493486595364547491902188990262089075654479024508920599820724077600560338777583849020226970802502701698536707715925178816740647553483451162302300021114124054722733966849904085148161294675428713817172282140371421789966924620248847180620544697343059454152188821644177181402239028854207155586605650128935984498960524113438574186063770151968096082114210976745634022783338838783851488603617795404076025985396832936245108843748210574504752717923890384271585663083859917491250653315690428299512376511571395008068376844574292235259353112380348691 . . . . . . . . . . . . . . . . . . . . [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) 3a1d38c5494792d7e74264dd8fd585609dcc5691 . . . . . . . . . . . . . . . . [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 (31 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cast.ruhr-uni-bochum.de' . . . . . . . . . . . . . . . . [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) 00f00076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016b0037b1ee000004030047304502210099305353c73d184888c5868dee95f0cb8f2c0093c2b0fb6e83bb72ae5cd1b26f022012739c5686e2a4f34f6ef8cfb657240ca894ec9469ce2b53f5df46cc93f7bcb2007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016b0037b1bb0000040300473045022100c317723434cfd59bcb236431ee2e98fbec3e05be63e92151f0d28191f79d1e1902200bbf28d90eb38180325b20bea64a3e804d1d44543c5e062d3fe1f4327f2afbfd . . . . [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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