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HARICA Server Certificate Chains

On this page, you will find the certificate chains for server certificates issued by HARICA and requested via RA-Portal (opens in new tab).

RSA certificate chain from 06.03.2025 onwards

Please download both intermediate certificates in RA-Portal.

RSA key	Serial number and fingerprint	Subject	Issuer	Validity
Root Certificate (RSA Key) (opens in new tab) crt_id=12731951	Serial Number: 00 SHA256 Fingerprint: A0:40:92:9A:02:CE:53:B4:AC:F4:F2:FF:C6:98:1C:E4:49:6F:75:5E:6D:45:FE:0B:2A:69:2B:CD:52:52:3F:36	Subject: C=GR,L=Athens,O=Hellenic Academic and Research Institutions Cert. Authority,CN=Hellenic Academic and Research Institutions RootCA 2015 X509v3 Subject Key Identifier: 71:15:67:C8:C8:C9:BD:75:5D:72:D0:38:18:6A:9D:F3:71:24:54:0B	Issuer: C=GR,L=Athens,O=Hellenic Academic and Research Institutions Cert. Authority,CN=Hellenic Academic and Research Institutions RootCA 2015	07.07.2015 10:11:21 GMT 30.06.2040 10:11:21 GMT
intermediate certificate (RSA-Key)	Serial Number: 2a:60:86:d4:d4:de:45:c9:5e:4b:98:fb:bf:2f:bf:26 SHA256 Fingerprint: 4A:CD:8D:C6:02:0A:54:5A:85:89:43:A5:53:B5:E0:F3:FC:5B:85:9A:EA:17:46:65:0D:69:CF:12:10:F9:56:D8	Subject: C = GR, O = Hellenic Academic and Research Institutions CA, CN = HARICA TLS RSA Root CA 2021 X509v3 Subject Key Identifier: 0A:48:23:A6:60:A4:92:0A:33:EA:93:5B:C5:57:EA:25:4D:BD:12:EE	Issuer: C = GR, L = Athens, O = Hellenic Academic and Research Institutions Cert. Authority, CN = Hellenic Academic and Research Institutions RootCA 2015 X509v3 Authority Key Identifier: 71:15:67:C8:C8:C9:BD:75:5D:72:D0:38:18:6A:9D:F3:71:24:54:0B	02.09.2021 07:41:55 GMT 31.08.2029 07:41:54 GMT
GÉANT intermediate certificate (RSA-Key)	Serial Number: 14:d5:7b:f3:69:22:28:21:9a:55:67:fa:91:65:1b:22 SHA256 Fingerprint: 5B:67:8D:C4:40:95:A5:28:95:B6:3B:31:F2:72:27:F4:B3:6C:3E:34:74:91:BF:2B:FA:69:18:37:A5:FB:8C:79	Subject: C = GR, O = Hellenic Academic and Research Institutions CA, CN = GEANT TLS RSA 1 X509v3 Subject Key Identifier: 86:01:72:3F:8C:A9:70:E2:31:06:53:16:CE:01:5F:5B:79:C8:3C:3B	Issuer: C = GR, O = Hellenic Academic and Research Institutions CA, CN = HARICA TLS RSA Root CA 2021 X509v3 Authority Key Identifier: 0A:48:23:A6:60:A4:92:0A:33:EA:93:5B:C5:57:EA:25:4D:BD:12:EE	03.01.2025 11:15:00 GMT 31.12.2039 11:14:59 GMT
Server certificate (RSA-Key)		Subject: C = DE, ST = Nordrhein-Westfalen, O = RWTH Aachen University, CN = <FQDN>	Issuer: C = GR, O = Hellenic Academic and Research Institutions CA, CN = GEANT TLS RSA 1 X509v3 Authority Key Identifier: 86:01:72:3F:8C:A9:70:E2:31:06:53:16:CE:01:5F:5B:79:C8:3C:3B	1 year

EC certificate chain from 06.03.2025 onwards

Please download both intermediate certificates in RA-Portal.

EC key	Serial number and fingerprint	Subject	Issuer	Validity
Root certificate (EC-Key) (opens in new tab) crt_id=12729857	Serial Number: 00 SHA256 Fingerprint: 44:B5:45:AA:8A:25:E6:5A:73:CA:15:DC:27:FC:36:D2:4C:1C:B9:95:3A:06:65:39:B1:15:82:DC:48:7B:48:33	Subject: C = GR, L = Athens, O = Hellenic Academic and Research Institutions Cert. Authority, CN = Hellenic Academic and Research Institutions ECC RootCA 2015 X509v3 Subject Key Identifier: B4:22:0B:82:99:24:01:0E:9C:BB:E4:0E:FD:BF:FB:97:20:93:99:2A	Issuer: C = GR, L = Athens, O = Hellenic Academic and Research Institutions Cert. Authority, CN = Hellenic Academic and Research Institutions ECC RootCA 2015	07.07.2015 10:37:12 GMT 30.06.2040 10:37:12 GMT
intermediate certificate (EC-Key)	Serial Number: 71:60:27:c8:85:7a:73:54:2d:ef:51:6c:1c:2e:eb:0f SHA256 Fingerprint: 50:E2:7F:90:EB:6A:F4:95:B0:E6:EE:B6:55:CC:89:44:4C:27:D3:C9:5B:68:23:FA:02:AB:DC:95:F1:63:6A:E1	Subject: C = GR, O = Hellenic Academic and Research Institutions CA, CN = HARICA TLS ECC Root CA 2021 X509v3 Subject Key Identifier: C9:1B:53:81:12:FE:04:D5:16:D1:AA:BC:9A:6F:B7:A0:95:19:6E:CA	Issuer: C = GR, L = Athens, O = Hellenic Academic and Research Institutions Cert. Authority, CN = Hellenic Academic and Research Institutions ECC RootCA 2015 X509v3 Authority Key Identifier: B4:22:0B:82:99:24:01:0E:9C:BB:E4:0E:FD:BF:FB:97:20:93:99:2A	02.09.2021 07:44:37 GMT 31.08.2029 07:44:36 GMT
GÉANT intermediate certificate (EC-Key)	Serial Number: 42:fd:dc:e1:26:16:07:e1:a5:e6:93:5a:40:01:61:dd SHA256 Fingerprint: 6C:DF:0B:A1:71:1E:85:6D:22:8B:A0:0C:A0:4C:5C:1C:3D:79:94:4C:03:7B:71:3B:15:5A:4E:E4:B4:7E:C5:3C	Subject: C = GR, O = Hellenic Academic and Research Institutions CA, CN = GEANT TLS ECC 1 X509v3 Subject Key Identifier: E9:99:06:8D:17:1F:AB:FB:96:1A:5A:C8:5B:5E:5D:5E:EC:DA:9C:8F	Subject: C = GR, O = Hellenic Academic and Research Institutions CA, CN = HARICA TLS ECC Root CA 2021 X509v3 Authority Key Identifier: C9:1B:53:81:12:FE:04:D5:16:D1:AA:BC:9A:6F:B7:A0:95:19:6E:CA	03.01.2025 11:14:21 GMT 31.12.2039 11:14:20 GMT
Server certificate (EC-Key)		Subject: C = DE, ST = Nordrhein-Westfalen, O = RWTH Aachen University, CN = <FQDN>	Issuer: C = GR, O = Hellenic Academic and Research Institutions CA, CN = GEANT TLS ECC 1 X509v3 Authority Key Identifier: E9:99:06:8D:17:1F:AB:FB:96:1A:5A:C8:5B:5E:5D:5E:EC:DA:9C:8F	1 year

Alternativ RSA certificate chain

(e.g. for windows clients, that do not trust "Hellenic Academic and Research Institutions RootCA 2015")

The Root-2021 (in table below) is not available in RA-Portal und musst replace the Intermediate-2021 (that you get in RA-Portal) so that the certificate chain can work without the Root-2015.

RSA key	Serial number and fingerprint	Subject	Issuer	Validity
alternativ Root-Certificate (RSA-Key) (opens in new tab) crt_id=4147041876	Serial Number: 39:ca:93:1c:ef:43:f3:c6:8e:93:c7:f4:64:89:38:7e SHA256 Fingerprint: D9:5D:0E:8E:DA:79:52:5B:F9:BE:B1:1B:14:D2:10:0D:32:94:98:5F:0C:62:D9:FA:BD:9C:D9:99:EC:CB:7B:1D	Subject: C = GR, O = Hellenic Academic and Research Institutions CA, CN = HARICA TLS RSA Root CA 2021 X509v3 Subject Key Identifier: 0A:48:23:A6:60:A4:92:0A:33:EA:93:5B:C5:57:EA:25:4D:BD:12:EE	Issuer: C = GR, O = Hellenic Academic and Research Institutions CA, CN = HARICA TLS RSA Root CA 2021	19.02.2021 10:55:38 GMT 13.02.2045 10:55:37 GMT
GÉANT intermediate certificate (RSA-Key)	Serial Number: 14:d5:7b:f3:69:22:28:21:9a:55:67:fa:91:65:1b:22 SHA256 Fingerprint: 5B:67:8D:C4:40:95:A5:28:95:B6:3B:31:F2:72:27:F4:B3:6C:3E:34:74:91:BF:2B:FA:69:18:37:A5:FB:8C:79	Subject: C = GR, O = Hellenic Academic and Research Institutions CA, CN = GEANT TLS RSA 1 X509v3 Subject Key Identifier: 86:01:72:3F:8C:A9:70:E2:31:06:53:16:CE:01:5F:5B:79:C8:3C:3B	Issuer: C = GR, O = Hellenic Academic and Research Institutions CA, CN = HARICA TLS RSA Root CA 2021 X509v3 Authority Key Identifier: 0A:48:23:A6:60:A4:92:0A:33:EA:93:5B:C5:57:EA:25:4D:BD:12:EE	03.01.2025 11:15:00 GMT 31.12.2039 11:14:59 GMT
Server certificate (RSA-Key)		Subject: C = DE, ST = Nordrhein-Westfalen, O = RWTH Aachen University, CN = <FQDN>	Issuer: C = GR, O = Hellenic Academic and Research Institutions CA, CN = GEANT TLS RSA 1 X509v3 Authority Key Identifier: 86:01:72:3F:8C:A9:70:E2:31:06:53:16:CE:01:5F:5B:79:C8:3C:3B	1 Jahr

Alternativ EC certificate chain

(e.g. for windows clients, that do not trust "Hellenic Academic and Research Institutions RootCA 2015")

The Root-2021 (in table below) is not available in RA-Portal und musst replace the Intermediate-2021 (that you get in RA-Portal) so that the certificate chain can work without the Root-2015.

EC key	Serial number and fingerprint	Subject	Issuer	Validity
alternativ Root-Certificate (EC-Key) (opens in new tab) crt_id=4147045948	Serial Number: 67:74:9d:8d:77:d8:3b:6a:db:22:f4:ff:59:e2:bf:ce SHA256 Fingerprint: 3F:99:CC:47:4A:CF:CE:4D:FE:D5:87:94:66:5E:47:8D:15:47:73:9F:2E:78:0F:1B:B4:CA:9B:13:30:97:D4:01	Subject: C = GR, O = Hellenic Academic and Research Institutions CA, CN = HARICA TLS ECC Root CA 2021 X509v3 Subject Key Identifier: C9:1B:53:81:12:FE:04:D5:16:D1:AA:BC:9A:6F:B7:A0:95:19:6E:CA	Issuer: C = GR, O = Hellenic Academic and Research Institutions CA, CN = HARICA TLS ECC Root CA 2021	19.02.2021 11:01:10 GMT 13.02.2045 11:01:09 GMT
GÉANT intermediate certificate (EC-Key)	Serial Number: 42:fd:dc:e1:26:16:07:e1:a5:e6:93:5a:40:01:61:dd SHA256 Fingerprint: 6C:DF:0B:A1:71:1E:85:6D:22:8B:A0:0C:A0:4C:5C:1C:3D:79:94:4C:03:7B:71:3B:15:5A:4E:E4:B4:7E:C5:3C	Subject: C = GR, O = Hellenic Academic and Research Institutions CA, CN = GEANT TLS ECC 1 X509v3 Subject Key Identifier: E9:99:06:8D:17:1F:AB:FB:96:1A:5A:C8:5B:5E:5D:5E:EC:DA:9C:8F	Subject: C = GR, O = Hellenic Academic and Research Institutions CA, CN = HARICA TLS ECC Root CA 2021 X509v3 Authority Key Identifier: C9:1B:53:81:12:FE:04:D5:16:D1:AA:BC:9A:6F:B7:A0:95:19:6E:CA	03.01.2025 11:14:21 GMT 31.12.2039 11:14:20 GMT
Server certificate (EC-Key)		Subject: C = DE, ST = Nordrhein-Westfalen, O = RWTH Aachen University, CN = <FQDN>	Issuer: C = GR, O = Hellenic Academic and Research Institutions CA, CN = GEANT TLS ECC 1 X509v3 Authority Key Identifier: E9:99:06:8D:17:1F:AB:FB:96:1A:5A:C8:5B:5E:5D:5E:EC:DA:9C:8F	1 Jahr

Additional information:

To create a SHA256 fingerprint, use the following command:

openssl x509 -in <zertifikatsdatei.pem> -fingerprint -sha256 -noout

For more information on certificates see:

last changed on 08/21/2026

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