CASA 1.0 and CASA 1.1

CSV information

Status active
Valid from 02.10.2023
Valid until 01.10.2031
Scheme 🇩🇪 DE
Manufacturer EMH metering GmbH & Co. KG
Category Other Devices and Systems
Security level EAL4+, AVA_VAN.5, ALC_FLR.2
Maintenance updates BSI-DSZ-CC-0919-V3-MA-03CASA 1.0 (SW: 31000000__X026f HW: 10 301 / 10 302 / 10 303 / 10 304)CASA 1.1 ( SW: 31000000__X026f HW: 11 301 / 11 302from EMG metering GmbH & Co. KG (13.03.2025) Certification report Security target
BSI-DSZ-CC-0919-V3-2023-MA-01CASA 1.0 (SW: 31000000__X026eHW: 10 301 / 10 302 / 10 303 / 10 304)CASA 1.1 (SW: 31000000__X026eHW: 11 301 / 11 302) (10.10.2023) Certification report Security target
CASA 1.0 (SW: 31000000__X026fHW: 10 301 / 10 302 / 10 303 / 10 304)CASA 1.1 (SW: 31000000__X026fHW: 11 301 / 11 302) (17.06.2024) Certification report

Heuristics summary

Certificate ID: BSI-DSZ-CC-0919-V3-2023

Certificate

Certificate PDF TXT

Extracted keywords

Security level
EAL 4, EAL 5, EAL 2, EAL 4 augmented
Security Assurance Requirements (SAR)
ALC_FLR.2, ALC_FLR, AVA_VAN.5
Certificates
BSI-DSZ-CC-0919-V3-2023

Standards
ISO/IEC 15408, ISO/IEC 18045

File metadata

Title Certification Report BSI-DSZ-CC-0919-V3-2023
Subject Common Criteria, Certification, Zertifizierung, Smartmeter Gateway, SMGW, SMart Grid, EMH
Keywords "Common Criteria, Certification, Zertifizierung, Smartmeter Gateway, SMGW, SMart Grid, EMH"
Author Bundesamt für Sicherheit in der Informationstechnik
Pages 1

Certification report

Certification report PDF TXT

Extracted keywords

Symmetric Algorithms
AES, CMAC
Asymmetric Algorithms
ECC
Hash functions
SHA-256, SHA-512
Protocols
SSH, TLS
Elliptic Curves
secp256r1
Block cipher modes
GCM

Security level
EAL 4, EAL 5, EAL 2, EAL 1, EAL 5+, EAL 6, EAL 4 augmented
Security Assurance Requirements (SAR)
ALC_FLR.2, ALC_FLR, AVA_VAN.5
Protection profiles
BSI-CC-PP-0073-2014, BSI-CC-PP-0077-V2
Certificates
BSI-DSZ-CC-0919-V3-2023, BSI-DSZ-CC-0919-V2-2021, BSI-DSZ-CC-0957-V2-2016
Evaluation facilities
TÃœV Informationstechnik, TÃœViT

Certification process
being maintained, is not given any longer. In particular, prior to the dissemination of confidential documentation and information related to the TOE or resulting from the evaluation and certification, GmbH & Co. KG [7] Evaluation Technical Report, Version 3, 2023-09-26, TÜV Informationstechnik GmbH (confidential document) [8] Protection Profile for the Gateway of a Smart Metering System, Version 1.3, 31 March 2014, list for the TOE CASA-Konfigurationsliste, Version 17, 2023-09-14, EMH metering GmbH & Co. KG (confidential document) [10] CASA 1.0 und CASA 1.1 Benutzerhandbuch für Letztverbraucher, Version 1.53, 2023-06-15, EMH

Standards
FIPS 140-2, FIPS 197, FIPS 180-4, FIPS180-4, AIS 34, AIS 46, AIS 48, AIS 32, AIS 38, RFC5289, RFC 2104, RFC 5639, RFC 3394, RFC 5084, RFC 4493, RFC 5289, ISO/IEC 15408, ISO/IEC 18045, ISO/IEC 17065
Technical reports
BSI TR-03109, BSI TR-03109-1, BSI TR-03109-3, BSI 7148

File metadata

Title Certification Report BSI-DSZ-CC-0919-V3-2023
Subject Common Criteria, Certification, Zertifizierung, Smartmeter Gateway, SMGW, SMart Grid, EMH
Keywords "Common Criteria, Certification, Zertifizierung, Smartmeter Gateway, SMGW, SMart Grid, EMH"
Author Bundesamt für Sicherheit in der Informationstechnik
Pages 27

Frontpage

Certificate ID BSI-DSZ-CC-0919-V3-2023
Certified item CASA 1.0 and CASA 1.1
Certification lab BSI
Developer EMH metering GmbH & Co. KG

References

Outgoing Incoming
  • BSI-DSZ-CC-0919-V4-2025 - active - CASA 1.0 (SW: 31100000__X026b, HW: 10 301, 10 302, 10 303, 10 304)CASA 1.1 (SW: 31100000__X026b, HW: 11 301, 11 302, 11 501, 11 502)

Security target

Security target PDF TXT

Extracted keywords

Symmetric Algorithms
AES, CMAC
Asymmetric Algorithms
ECDSA, ECC
Hash functions
SHA-256, SHA-512, SHA-384
Schemes
MAC
Protocols
TLS, TLS 1.2
Elliptic Curves
P-256, P-384, ansip384r1, NIST P-256, NIST P-384, secp256r1, secp384r1, prime256v1, brainpoolP256r1, brainpoolP384r1, brainpoolP512r1
Block cipher modes
GCM
TLS cipher suites
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384

Security level
EAL 4, EAL4, EAL 4 augmented, EAL4 augmented
Claims
OE.SM, OSP.SM
Security Assurance Requirements (SAR)
ADV_ARC.1, ADV_IMP.1, AGD_OPE.1, ALC_FLR.2, ALC_CMC.4, ALC_DEL.1, ALC_LCD.1, ATE_COV.2, ATE_FUN.1, AVA_VAN.5, ASE_CCL.1, ASE_INT.1, ASE_REQ.2, ASE_TSS.1
Security Functional Requirements (SFR)
FAU_ARP, FAU_GEN, FAU_SAA, FAU_SAR, FAU_STG, FAU_GEN.2, FAU_STG.2, FAU_ARP.1, FAU_SAA.1, FAU_GEN.1, FAU_SAR.1, FAU_STG.4, FAU_STG.3, FAU_STG.1, FAU_GEN.2.1, FAU_STG.2.1, FAU_STG.2.2, FAU_STG.2.3, FAU_CON.1.2, FCO_NRO, FCO_NRO.2, FCO_NRO.2.1, FCO_NRO.2.2, FCO_NRO.2.3, FCO_NRO.1, FCS_CKM, FCS_COP, FCS_CKM.4, FCS_CKM.1, FCS_CKM.2, FCS_COP.1, FCS_CKM.4.1, FDP_IFC, FDP_ACC.2, FDP_ACF.1, FDP_IFF, FDP_RIP.2, FDP_SDI.2, FDP_ITC.1, FDP_ITC.2, FDP_ACC, FDP_ACC.2.1, FDP_ACC.2.2, FDP_ACC.1, FDP_ACF.1.1, FDP_ACF.1.2, FDP_ACF.1.3, FDP_ACF.1.4, FDP_IFC.2, FDP_IFC.1, FDP_IFF.1, FDP_IFF.1.3, FDP_RIP, FDP_RIP.2.1, FDP_RIP.1, FDP_SDI, FDP_SDI.2.1, FDP_SDI.2.2, FDP_SDI.1, FIA_ATD, FIA_AFL, FIA_UAU, FIA_UID, FIA_USB, FIA_ATD.1, FIA_AFL.1, FIA_UAU.2, FIA_UAU.5, FIA_UAU.6, FIA_UID.2, FIA_USB.1, FIA_UID.1, FIA_ATD.1.1, FIA_AFL.1.1, FIA_AFL.1.2, FIA_UAU.1, FIA_UAU.2.1, FIA_UAU.5.1, FIA_UAU.5.2, FIA_UAU.6.1, FIA_UID.2.1, FIA_USB.1.1, FIA_USB.1.2, FIA_USB.1.3, FMT_SMR, FMT_MOF.1, FMT_SMF.1, FMT_SMR.1, FMT_MSA, FMT_MSA.3, FMT_MOF, FMT_MOF.1.1, FMT_SMF, FMT_SMF.1.1, FMT_SMR.1.1, FMT_SMR.1.2, FMT_MSA.1, FPR_CON, FPR_CON.1, FPR_PSE, FPR_CON.1.2, FPR_CON.1.1, FPR_PSE.1, FPR_PSE.1.1, FPR_PSE.1.2, FPR_PSE.1.3, FPT_FLS, FPT_RPL, FPT_STM, FPT_TST, FPT_PHP, FPT_FLS.1, FPT_RPL.1, FPT_STM.1, FPT_TST.1, FPT_PHP.1, FPT_FLS.1.1, FPT_RPL.1.1, FPT_RPL.1.2, FPT_STM.1.1, FPT_TST.1.1, FPT_TST.1.2, FPT_TST.1.3, FPT_PHP.1.1, FPT_PHP.1.2, FPT_SDI.2, FTP_ITC, FTP_ITC.1
Protection profiles
BSI-CC-PP-0077-2013, BSI-CC-PP- 0073, BSI-CC-PP-0077-V2
Certificates
BSI-DSZ-CC-0957-V2-2016
Evaluation facilities
TÃœV Informationstechnik

Side-channel analysis
physical tampering, malfunction

Standards
FIPS 180-4, FIPS 197, FIPS 140-2, RFC 5289, RFC 5246, RFC 2104, RFC 5639, RFC 3394, RFC 3565, RFC 5084, RFC 4493, RFC 5905, RFC 2616, RFC5246
Technical reports
BSI TR-03109-1, BSI TR-03109

File metadata

Title CASA 1.0 and CASA 1.1 Security Target
Author EMH metering GmbH & Co. KG
Pages 131

References

Outgoing

Heuristics

Automated inference - use with caution

All attributes shown in this section (e.g., links between certificates, products, vendors, and known CVEs) are generated by automated heuristics and have not been reviewed by humans. These methods can produce false positives or false negatives and should not be treated as definitive without independent verification. For details on our data sources and inference methods, see our methodology. If you believe any information here is inaccurate or harmful, please submit feedback.

Certificate ID

BSI-DSZ-CC-0919-V3-2023

Extracted SARs

ADV_ARC.1, ADV_IMP.1, AGD_OPE.1, ALC_CMC.4, ALC_DEL.1, ALC_FLR.2, ALC_LCD.1, ASE_CCL.1, ASE_INT.1, ASE_REQ.2, ASE_TSS.1, ATE_COV.2, ATE_FUN.1, AVA_VAN.5

References

Updates

  • The certificate data changed.
  • The certificate data changed.
  • The certificate data changed.
  • The certificate data changed.
  • The certificate data changed.
  • The certificate data changed.
  • The certificate data changed.
  • The certificate data changed.
  • The certificate data changed.
  • The certificate data changed.
  • The certificate data changed.
  • The certificate data changed.
  • The certificate data changed.
  • The certificate data changed.
  • The certificate data changed.
  • The certificate data changed.
  • The certificate was first processed.

Raw data 

{
  "_type": "sec_certs.sample.cc.CCCertificate",
  "category": "Other Devices and Systems",
  "cert_link": "https://www.commoncriteriaportal.org/nfs/ccpfiles/files/epfiles/0919V3c_pdf.pdf",
  "dgst": "8d5dbc2a431f6dc1",
  "heuristics": {
    "_type": "sec_certs.sample.cc.CCCertificate.Heuristics",
    "annotated_references": null,
    "cert_id": "BSI-DSZ-CC-0919-V3-2023",
    "cert_lab": [
      "BSI"
    ],
    "cpe_matches": null,
    "direct_transitive_cves": null,
    "eal": "EAL4+",
    "extracted_sars": {
      "_type": "Set",
      "elements": [
        {
          "_type": "sec_certs.sample.sar.SAR",
          "family": "ALC_CMC",
          "level": 4
        },
        {
          "_type": "sec_certs.sample.sar.SAR",
          "family": "ASE_CCL",
          "level": 1
        },
        {
          "_type": "sec_certs.sample.sar.SAR",
          "family": "AVA_VAN",
          "level": 5
        },
        {
          "_type": "sec_certs.sample.sar.SAR",
          "family": "ALC_LCD",
          "level": 1
        },
        {
          "_type": "sec_certs.sample.sar.SAR",
          "family": "ALC_DEL",
          "level": 1
        },
        {
          "_type": "sec_certs.sample.sar.SAR",
          "family": "ADV_ARC",
          "level": 1
        },
        {
          "_type": "sec_certs.sample.sar.SAR",
          "family": "AGD_OPE",
          "level": 1
        },
        {
          "_type": "sec_certs.sample.sar.SAR",
          "family": "ASE_INT",
          "level": 1
        },
        {
          "_type": "sec_certs.sample.sar.SAR",
          "family": "ATE_FUN",
          "level": 1
        },
        {
          "_type": "sec_certs.sample.sar.SAR",
          "family": "ASE_REQ",
          "level": 2
        },
        {
          "_type": "sec_certs.sample.sar.SAR",
          "family": "ALC_FLR",
          "level": 2
        },
        {
          "_type": "sec_certs.sample.sar.SAR",
          "family": "ATE_COV",
          "level": 2
        },
        {
          "_type": "sec_certs.sample.sar.SAR",
          "family": "ADV_IMP",
          "level": 1
        },
        {
          "_type": "sec_certs.sample.sar.SAR",
          "family": "ASE_TSS",
          "level": 1
        }
      ]
    },
    "extracted_versions": {
      "_type": "Set",
      "elements": [
        "1.0",
        "1.1"
      ]
    },
    "indirect_transitive_cves": null,
    "next_certificates": null,
    "prev_certificates": null,
    "protection_profiles": null,
    "related_cves": null,
    "report_references": {
      "_type": "sec_certs.sample.certificate.References",
      "directly_referenced_by": {
        "_type": "Set",
        "elements": [
          "BSI-DSZ-CC-0919-V4-2025"
        ]
      },
      "directly_referencing": {
        "_type": "Set",
        "elements": [
          "BSI-DSZ-CC-0919-V2-2021",
          "BSI-DSZ-CC-0957-V2-2016"
        ]
      },
      "indirectly_referenced_by": {
        "_type": "Set",
        "elements": [
          "BSI-DSZ-CC-0919-V4-2025"
        ]
      },
      "indirectly_referencing": {
        "_type": "Set",
        "elements": [
          "BSI-DSZ-CC-0919-2019",
          "BSI-DSZ-CC-0957-2015",
          "BSI-DSZ-CC-0845-V2-2013",
          "BSI-DSZ-CC-0666-2012",
          "BSI-DSZ-CC-0845-2012",
          "BSI-DSZ-CC-0957-V2-2016",
          "BSI-DSZ-CC-0919-V2-2021",
          "BSI-DSZ-CC-0978-2016"
        ]
      }
    },
    "scheme_data": null,
    "st_references": {
      "_type": "sec_certs.sample.certificate.References",
      "directly_referenced_by": null,
      "directly_referencing": {
        "_type": "Set",
        "elements": [
          "BSI-DSZ-CC-0957-V2-2016"
        ]
      },
      "indirectly_referenced_by": null,
      "indirectly_referencing": {
        "_type": "Set",
        "elements": [
          "BSI-DSZ-CC-0978-2016",
          "BSI-DSZ-CC-0957-V2-2016"
        ]
      }
    },
    "verified_cpe_matches": null
  },
  "maintenance_updates": {
    "_type": "Set",
    "elements": [
      {
        "_type": "sec_certs.sample.cc.CCCertificate.MaintenanceReport",
        "maintenance_date": "2024-06-17",
        "maintenance_report_link": "https://www.commoncriteriaportal.org/nfs/ccpfiles/files/epfiles/0919V3ma2a_pdf.pdf",
        "maintenance_st_link": null,
        "maintenance_title": "CASA 1.0 (SW: 31000000__X026fHW: 10 301 / 10 302 / 10 303 / 10 304)CASA 1.1 (SW: 31000000__X026fHW: 11 301 / 11 302)"
      },
      {
        "_type": "sec_certs.sample.cc.CCCertificate.MaintenanceReport",
        "maintenance_date": "2023-10-10",
        "maintenance_report_link": "https://www.commoncriteriaportal.org/nfs/ccpfiles/files/epfiles/0919V3ma1a_pdf.pdf",
        "maintenance_st_link": "https://www.commoncriteriaportal.org/nfs/ccpfiles/files/epfiles/0919V3b_pdf.pdf",
        "maintenance_title": "BSI-DSZ-CC-0919-V3-2023-MA-01CASA 1.0 (SW: 31000000__X026eHW: 10 301 / 10 302 / 10 303 / 10 304)CASA 1.1 (SW: 31000000__X026eHW: 11 301 / 11 302)"
      },
      {
        "_type": "sec_certs.sample.cc.CCCertificate.MaintenanceReport",
        "maintenance_date": "2025-03-13",
        "maintenance_report_link": "https://www.commoncriteriaportal.org/nfs/ccpfiles/files/epfiles/0919V3ma3a_pdf.pdf",
        "maintenance_st_link": "https://www.commoncriteriaportal.org/nfs/ccpfiles/files/epfiles/0919V3ma3b_pdf.pdf",
        "maintenance_title": "BSI-DSZ-CC-0919-V3-MA-03CASA 1.0 (SW: 31000000__X026f HW: 10 301 / 10 302 / 10 303 / 10 304)CASA 1.1 ( SW: 31000000__X026f HW: 11 301 / 11 302from EMG metering GmbH \u0026 Co. KG"
      }
    ]
  },
  "manufacturer": "EMH metering GmbH \u0026 Co. KG",
  "manufacturer_web": "https://emh-metering.de",
  "name": "CASA 1.0 and CASA 1.1",
  "not_valid_after": "2031-10-01",
  "not_valid_before": "2023-10-02",
  "pdf_data": {
    "_type": "sec_certs.sample.cc.CCCertificate.PdfData",
    "cert_filename": "0919V3c_pdf.pdf",
    "cert_frontpage": null,
    "cert_keywords": {
      "asymmetric_crypto": {},
      "cc_cert_id": {
        "DE": {
          "BSI-DSZ-CC-0919-V3-2023": 1
        }
      },
      "cc_claims": {},
      "cc_protection_profile_id": {},
      "cc_sar": {
        "ALC": {
          "ALC_FLR": 1,
          "ALC_FLR.2": 1
        },
        "AVA": {
          "AVA_VAN.5": 1
        }
      },
      "cc_security_level": {
        "EAL": {
          "EAL 2": 1,
          "EAL 4": 2,
          "EAL 4 augmented": 1,
          "EAL 5": 1
        }
      },
      "cc_sfr": {},
      "certification_process": {},
      "cipher_mode": {},
      "cplc_data": {},
      "crypto_engine": {},
      "crypto_library": {},
      "crypto_protocol": {},
      "crypto_scheme": {},
      "device_model": {},
      "ecc_curve": {},
      "eval_facility": {},
      "hash_function": {},
      "ic_data_group": {},
      "javacard_api_const": {},
      "javacard_packages": {},
      "javacard_version": {},
      "os_name": {},
      "pq_crypto": {},
      "randomness": {},
      "side_channel_analysis": {},
      "standard_id": {
        "ISO": {
          "ISO/IEC 15408": 2,
          "ISO/IEC 18045": 2
        }
      },
      "symmetric_crypto": {},
      "technical_report_id": {},
      "tee_name": {},
      "tls_cipher_suite": {},
      "vendor": {},
      "vulnerability": {}
    },
    "cert_metadata": {
      "/Author": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "/Keywords": "\"Common Criteria, Certification, Zertifizierung, Smartmeter Gateway, SMGW, SMart Grid, EMH\"",
      "/Subject": "Common Criteria, Certification, Zertifizierung, Smartmeter Gateway, SMGW, SMart Grid, EMH",
      "/Title": "Certification Report BSI-DSZ-CC-0919-V3-2023",
      "pdf_file_size_bytes": 336982,
      "pdf_hyperlinks": {
        "_type": "Set",
        "elements": []
      },
      "pdf_is_encrypted": false,
      "pdf_number_of_pages": 1
    },
    "report_filename": "0919V3a_pdf.pdf",
    "report_frontpage": {
      "DE": {
        "cc_security_level": "Common Criteria Part 3 conformant EAL 4 augmented by ALC_FLR.2 and AVA_VAN.5 valid until: 01 October 2031",
        "cc_version": "PP conformant Common Criteria Part 2 extended",
        "cert_id": "BSI-DSZ-CC-0919-V3-2023",
        "cert_item": "CASA 1.0 and CASA 1.1",
        "cert_lab": "BSI",
        "developer": "EMH metering GmbH \u0026 Co. KG",
        "match_rules": [
          "(BSI-DSZ-CC-.+?) (?:for|For) (.+?) from (.*)"
        ],
        "ref_protection_profiles": "Protection Profile for the Gateway of a Smart Metering System, Version 1.3, 31 March 2014, BSI- CC-PP-0073-2014"
      }
    },
    "report_keywords": {
      "asymmetric_crypto": {
        "ECC": {
          "ECC": {
            "ECC": 3
          }
        }
      },
      "cc_cert_id": {
        "DE": {
          "BSI-DSZ-CC-0919-V2-2021": 3,
          "BSI-DSZ-CC-0919-V3-2023": 14,
          "BSI-DSZ-CC-0957-V2-2016": 1
        }
      },
      "cc_claims": {},
      "cc_protection_profile_id": {
        "BSI": {
          "BSI-CC-PP-0073-2014": 3,
          "BSI-CC-PP-0077-V2": 1
        }
      },
      "cc_sar": {
        "ALC": {
          "ALC_FLR": 3,
          "ALC_FLR.2": 4
        },
        "AVA": {
          "AVA_VAN.5": 5
        }
      },
      "cc_security_level": {
        "EAL": {
          "EAL 1": 1,
          "EAL 2": 3,
          "EAL 4": 8,
          "EAL 4 augmented": 3,
          "EAL 5": 3,
          "EAL 5+": 1,
          "EAL 6": 1
        }
      },
      "cc_sfr": {},
      "certification_process": {
        "ConfidentialDocument": {
          "GmbH \u0026 Co. KG [7] Evaluation Technical Report, Version 3, 2023-09-26, T\u00dcV Informationstechnik GmbH (confidential document) [8] Protection Profile for the Gateway of a Smart Metering System, Version 1.3, 31 March 2014": 1,
          "being maintained, is not given any longer. In particular, prior to the dissemination of confidential documentation and information related to the TOE or resulting from the evaluation and certification": 1,
          "list for the TOE CASA-Konfigurationsliste, Version 17, 2023-09-14, EMH metering GmbH \u0026 Co. KG (confidential document) [10] CASA 1.0 und CASA 1.1 Benutzerhandbuch f\u00fcr Letztverbraucher, Version 1.53, 2023-06-15, EMH": 1
        }
      },
      "cipher_mode": {
        "GCM": {
          "GCM": 2
        }
      },
      "cplc_data": {},
      "crypto_engine": {},
      "crypto_library": {},
      "crypto_protocol": {
        "SSH": {
          "SSH": 1
        },
        "TLS": {
          "TLS": {
            "TLS": 4
          }
        }
      },
      "crypto_scheme": {},
      "device_model": {},
      "ecc_curve": {
        "NIST": {
          "secp256r1": 1
        }
      },
      "eval_facility": {
        "TUV": {
          "T\u00dcV Informationstechnik": 3,
          "T\u00dcViT": 1
        }
      },
      "hash_function": {
        "SHA": {
          "SHA2": {
            "SHA-256": 1,
            "SHA-512": 1
          }
        }
      },
      "ic_data_group": {},
      "javacard_api_const": {},
      "javacard_packages": {},
      "javacard_version": {},
      "os_name": {},
      "pq_crypto": {},
      "randomness": {},
      "side_channel_analysis": {},
      "standard_id": {
        "BSI": {
          "AIS 32": 1,
          "AIS 34": 2,
          "AIS 38": 1,
          "AIS 46": 2,
          "AIS 48": 2
        },
        "FIPS": {
          "FIPS 140-2": 2,
          "FIPS 180-4": 2,
          "FIPS 197": 6,
          "FIPS180-4": 1
        },
        "ISO": {
          "ISO/IEC 15408": 4,
          "ISO/IEC 17065": 2,
          "ISO/IEC 18045": 4
        },
        "RFC": {
          "RFC 2104": 3,
          "RFC 3394": 3,
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