piazza-mastro-lorenzo.ch
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:25:54:0f:ab:08:d4:bf:aa:7c:45:07:68:5d:51:02:f7:c6 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=piazza-mastro-lorenzo.ch
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:25:54:0f:ab:08:d4:bf:aa:7c:45:07:68:5d:51:02:f7:c6Serial Number (int): 274039041876445984100313007889595366569926
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 7e:5b:e6:31:4f:43:aa:db:6a:72:ae:5a:92:74:5d:b6:3e:95:0e:9c
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): fd:ba:95:98:5f:b6:49:1e:fe:bf:1f:33:56:ef:2a:38:4b:34:c7:de
Fingerprint (sha256): 76:1f:fd:96:6a:a5:34:27:61:f2:ab:75:50:72:be:41:cb:79:ef:12:dc:21:8a:7b:9d:a4:28:e8:a0:17:40:cf
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate piazza-mastro-lorenzo.ch
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for piazza-mastro-lorenzo.ch
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
piazza-mastro-lorenzo.ch
Other certificates including the domain name piazza-mastro-lorenzo.ch
(limited to 100 certificates)
piazza-mastro-lorenzo.ch
piazza-mastro-lorenzo.ch
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piazza-mastro-lorenzo.ch
Certificate
The complete raw certificate details for piazza-mastro-lorenzo.ch in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGGjCCBQKgAwIBAgISAyVUD6sI1L+qfEUHaF1RAvfGMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODA0MDIyMTMyMzZaFw0x ODA3MDEyMTMyMzZaMCMxITAfBgNVBAMTGHBpYXp6YS1tYXN0cm8tbG9yZW56by5j aDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAL59XKj9gHhEW4ZELr4a TU5QtA5RYvgdqe/+TdgtJubVfN1TzSvMRL7GQ4FPba2KxA5efP4R6ONizeYHLTbs HsSGm4WTDPlIQErfyfFY0jo7cifVFlciOAm0fDxnDN8T0KN+ElkHV6NHOFU4cmf/ ZSTcTUcCnk4j3xQ4CAAb7MicmjoNsyN6tlPTfpHv3SJmEerUYokivdELK6hv/QaM ZtVetnYBeDIZOhtofgyl5VTF7Rjz0EHbd10vGi3Df/qnyWyt2innVCxokRTrzZTL 01fjoNYJDqcUr0UHJy4K0Xt0ucxkqKqJsLO0A3XsoMVGguhx2utsiakTzmrYCnDv dUUCAwEAAaOCAx8wggMbMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEF BQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUflvmMU9Dqttq cq5aknRdtj6VDpwwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYI KwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0 c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0 c2VuY3J5cHQub3JnLzAjBgNVHREEHDAaghhwaWF6emEtbWFzdHJvLWxvcmVuem8u Y2gwgf4GA1UdIASB9jCB8zAIBgZngQwBAgEwgeYGCysGAQQBgt8TAQEBMIHWMCYG CCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCBqwYIKwYBBQUH AgIwgZ4MgZtUaGlzIENlcnRpZmljYXRlIG1heSBvbmx5IGJlIHJlbGllZCB1cG9u IGJ5IFJlbHlpbmcgUGFydGllcyBhbmQgb25seSBpbiBhY2NvcmRhbmNlIHdpdGgg dGhlIENlcnRpZmljYXRlIFBvbGljeSBmb3VuZCBhdCBodHRwczovL2xldHNlbmNy eXB0Lm9yZy9yZXBvc2l0b3J5LzCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB2ANt0 r+7LKeyx/so+cW0s5bmquzb3hHGDx12dTze2H79kAAABYoh9nrEAAAQDAEcwRQIh ANYaqwgWne9HHvSdDXpU2v/CV18v1OGvqVCdISrPmtTFAiAPanmCFtIDaKherEzZ Y9CKwk8FNlnZL7OhljY528R9cgB1ACk8UZZUyDlluqpQ/FgH1Ldvv1h6KXLcpMMM 9OVFR/R4AAABYoh9nukAAAQDAEYwRAIgb6kjI3Fb3cgLCYuLx4Jl8jWptbmhwXnd eN+Ws6E8NjUCIHcVqdCvff1XQpccQJKbyEDwkmyXm+rMcR5ZQiKxf/kjMA0GCSqG SIb3DQEBCwUAA4IBAQAkb4GNcKyHHmQi7u8SrXcYPQ2VsmYvHwgbUpSRsCSc7F6c 5Be/mBlpWhpP401uUAJ7Kbc42LUexipxORYsGrJ01CZVi6bQC+1vtBCZmdyHssSy HOerdcZE5hDPEtVs7BL6oZpJCDrxaQJvGgGAKAZzEjIx5BP0DkW7iQAAEw/FQF66 NttPd8d8QVI+XGrpE0GjruBDp4y55V2H+7nHpvd3Rra6G8mIArQGL3SNGBwwRacB LXlYWEjszHy27Y+6qDf7tHbfr0uxIpQ6Q068HAia5Wbz0mLOK+oWXCLxNtZNuVzO Fe7ZkpfhaXlp1JN25tcf9o7ryWW7trrWEtjtMHO7 -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvn1cqP2AeERbhkQuvhpN TlC0DlFi+B2p7/5N2C0m5tV83VPNK8xEvsZDgU9trYrEDl58/hHo42LN5gctNuwe xIabhZMM+UhASt/J8VjSOjtyJ9UWVyI4CbR8PGcM3xPQo34SWQdXo0c4VThyZ/9l JNxNRwKeTiPfFDgIABvsyJyaOg2zI3q2U9N+ke/dImYR6tRiiSK90QsrqG/9Boxm 1V62dgF4Mhk6G2h+DKXlVMXtGPPQQdt3XS8aLcN/+qfJbK3aKedULGiRFOvNlMvT V+Og1gkOpxSvRQcnLgrRe3S5zGSoqomws7QDdeygxUaC6HHa62yJqRPOatgKcO91 RQIDAQAB -----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 274039041876445984100313007889595366569926 . . . . . . . . [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 2018-04-02 21:32:36 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-07-01 21:32:36 +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 'piazza-mastro-lorenzo.ch' . . . . . . . . [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 24047096226863587751775630450122870381062926733784552741159012621712251413497944523727601976068251534659362630422814366945173490312409895595894767776840453259644878207899378188056784132635701585563811538755392171745353777655832961827531027381754828691605909221689257636834015123491159540771663302622336382625774620146771261806517516826340703309136291184087089168464435012782559021808821601475905124864252534171504041491869959553410027577023785334526561311236658458843405052701442099900985334567856484452257422233091324582773485578970098490690479152371248977937490382801678915075927733531059355322186028890889166746949 . . . . . . . . . . . . . . . . . . . . [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) 7e5be6314f43aadb6a72ae5a92745db63e950e9c . . . . . . . . . . . . . . . . [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 (28 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'piazza-mastro-lorenzo.ch' . . . . . . . . . . . . . . . . [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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007600db74afeecb29ecb1feca3e716d2ce5b9aabb36f7847183c75d9d4f37b61fbf6400000162887d9eb10000040300473045022100d61aab08169def471ef49d0d7a54daffc2575f2fd4e1afa9509d212acf9ad4c502200f6a798216d20368a85eac4cd963d08ac24f053659d92fb3a1963639dbc47d72007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000162887d9ee9000004030046304402206fa92323715bddc80b098b8bc78265f235a9b5b9a1c179dd78df96b3a13c363502207715a9d0af7dfd5742971c40929bc840f0926c979beacc711e594222b17ff923 . . . . [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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