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15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 2.1 Normative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which a... |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 2.2 Informative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks i... |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 3 Definitions and abbreviations | |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 3.1 Definitions | For the purposes of the present document, the terms and definitions given in ETSI TR 119 001 [i.3] apply. |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 3.2 Abbreviations | For the purposes of the present document, the abbreviations given in ETSI TR 119 001 [i.3] apply. |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 4 Overview | The present clause describes the main aspects of the technical approach used for specifying the set of checks to be performed for testing conformance to ETSI EN 319 142-2 [3]. ETSI EN 319 142-1 [1] defines requirements for building blocks and PAdES baseline signatures. For the purpose of identifying the whole set of te... |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 5.1 Introduction | The present clause specifies the set of assertions to be tested on signatures claiming conformance to the CMS signatures in PDF profile as specified by clause 4 of ETSI EN 319 142-2 [3]. The next clauses specify the assertions for testing the elements that are profiled by clause 4 of ETSI EN 319 142-2 [3]. The constrai... |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 5.2 Testing signature dictionary elements | This clause defines the test assertion for signature dictionary elements requirements. PAdES_BB/SDC/1 check as specified in ETSI TS 119 144-4 [6] shall apply. TA id: PAdES_AS/SDC/1 Normative source: [3] – Clause 4.2.1 Target: PAdES signature generator claiming conformance to PAdES signatures as specified in [3] Prerequ... |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 5.3 Testing PKCS #7 signature elements | This clause defines the test assertions for the signature, included in the signature dictionary entry with the key Contents, requirements. Test assertions for SignedData.certificates attribute: PAdES_BB/CER/1-2 checks as specified in ETSI TS 119 144-4 [6] shall apply. Test assertion for revocation data attribute: TA id... |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 6.1 Introduction | The present clause specifies the set of assertions to be tested on signatures claiming conformance to PAdES-E-BES and PAdES-E-EPES signatures level as specified by clause 5 of ETSI EN 319 142-2 [3]. The next clauses specify the assertions for testing whether the elements that are profiled by ETSI EN 319 142-2 [3], are ... |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 6.2.1 Testing signature dictionary elements | This clause specifies assertions for testing those constraints imposed by the CAdES specification [2] and the PAdES-E-BES level [3] to the signature dictionary elements. PAdES_BB/SDC/1 check as specified in ETSI TS 119 144-4 [6] shall apply. PAdES_BB/SDBR/1-2 checks as specified in ETSI TS 119 144-4 [6] shall apply. PA... |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 6.2.2 Testing CMS signature elements | This clause specifies assertions for testing those constraints imposed by the CAdES specification [2] and the PAdES-E-BES level [3] to the CMS signature elements. Test assertions for SignedData.certificates attribute: • PAdES_BB/CER/1-2 checks as specified in ETSI TS 119 144-4 [6] shall apply. Test assertion for timest... |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 6.3.1 Testing signature dictionary elements | This clause specifies assertions for testing those constraints imposed by the CAdES specification [2] and the PAdES-E-EPES level [3] to the signature dictionary elements. PAdES_BB/SDBR/1-2 checks as specified in ETSI TS 119 144-4 [6] shall apply. |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 6.3.2 Testing CMS signature elements | This clause specifies assertions for testing those constraints imposed by the CAdES specification [2] and the PAdES-E-EPES level [3] to the CMS signature elements. It defines the test assertion for signature-policy-identifier attribute presence in CMS signature. TA id: PAdES_AS/SPID/1 Normative source: [3] – Clause 5.4... |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 7.1 General requirements | The present clause specifies the set of assertions to be tested on signatures claiming conformance to the PAdES-E-LTV signatures level as specified by clause 5 of ETSI EN 319 142-2 [3]. The next clauses specify the assertions for testing whether the elements that are profiled by ETSI EN 319 142-2 [3], are actually conf... |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 7.2 Testing DSS dictionary | This clause defines the test assertion for Document Security Store dictionary elements requirements. PAdES_BB/DSS/1-2-3-4-5 checks as specified in ETSI TS 119 144-4 [6] shall apply. |
15464d2cb35e56a6f04feba86a8fe760 | 119 144-5 | 7.3 Testing DTS dictionary | This clause defines the test assertion for Document Time-Stamp dictionary element requirements. PAdES_BB/DTS/2-3-4-5 checks as specified in ETSI TS 119 144-4 [6] shall apply. 8 Testing conformance to profiles for XAdES signatures signing XML content in PDF specification A PAdES signature conformant to the profiles for ... |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 1 Scope | The present document defines the set of checks to be performed for testing conformance of PAdES signatures against PAdES baseline signatures as specified in ETSI EN 319 142-1 [1]. The present document does not specify checks leading to conclude whether a signature is technically valid or not (for instance, it does not ... |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 2 References | |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 2.1 Normative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which a... |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 2.2 Informative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks i... |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 3 Definitions and abbreviations | |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 3.1 Definitions | For the purposes of the present document, the terms and definitions given in ETSI TR 119 001 [i.2] apply. |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 3.3 Abbreviations | For the purposes of the present document, the abbreviations given in ETSI TR 119 001 [i.2] apply. |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 4 Overview | The present clause describes the main aspects of the technical approach used for specifying the whole set of checks to be performed for testing conformance to ETSI EN 319 142-1 [1]. ETSI EN 319 142-1 [1] defines requirements for building blocks and PAdES baseline signatures. For the purpose of identifying the whole set... |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 5 Testing conformance to PAdES-B-B signatures | |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 5.1 Introduction | The present clause specifies the whole set of assertions to be tested on applications claiming conformance to PAdES-B-B signatures as specified in ETSI EN 319 142-1 [1]. Clause 5.2 specifies assertions for testing those constraints imposed by the PAdES building blocks and baseline signatures specification [1] to the si... |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 5.2 Testing signature dictionary elements | This clause defines the test assertions for signature dictionary elements requirements. TA id: PAdES_BS/SDM/1 Normative source: [1] – Clause 6.3 Target: PAdES signature generator claiming conformance to PAdES signatures as specified in [1] Predicate: For new signatures, applications include the claimed time of signing ... |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 5.3 Testing CMS signature elements | This clause defines the test assertions for the CMS signature, included in the signature dictionary entry with the key Contents, requirements. Test assertions for SignedData.certificates attribute: TA id: PAdES_BB/CER/1 Normative source: [1] – Clause 6.3 Target: PAdES signature generator claiming conformance to PAdES s... |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 6 Testing conformance to PAdES-B-T signatures | |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 6.1 General requirements | PAdES-B-T signatures as specified in ETSI EN 319 142-1 [1] are built on PAdES-B-B signatures. In consequence, PAdES-B-T signatures shall fulfil the requirements specified in clause 5 of the present document and all the requirements defined in clause 6.2. |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 6.2 Testing trusted signing time | This clause defines the test assertions for trusted time attribute presence in CMS and/or PAdES signature. TA id: PAdES_BS/TT/1 Normative source: [1] – Clause 6.3 Target: PAdES signature generator claiming conformance to PAdES signatures as specified in [1] ETSI ETSI TS 119 144-4 V1.1.1 (2016-06) 12 Predicate: For new ... |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 7 Testing conformance to PAdES-B-LT signatures | |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 7.1 General requirements | PAdES-B-LT signatures as specified in ETSI EN 319 142-1 [1] are built on PAdES-B-T signatures. In consequence, PAdES-B-LT signatures shall fulfil the requirements specified in clauses 5 and 6 of the present document and all the requirements defined in clause 7.2. |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 7.2 Testing DSS dictionary | This clause defines the test assertion for Document Security Store dictionary elements requirements. TA id: PAdES_BB/DSS/1 Normative source: [1] – Clause 6.3 Target: PAdES signature generator claiming conformance to PAdES signatures as specified in [1] or in [2] Predicate: For new signatures, applications include the D... |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 8 Testing conformance to PAdES-B-LTA signatures | |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 8.1 General requirements | PAdES-B-LTA signatures as specified in ETSI EN 319 142-1 [1] are built on PAdES-B-LT signatures. In consequence, PAdES-B-LTA signatures shall fulfil the requirements specified in clauses 5, 6 and 7 of the present document and all the requirements defined in clause 8.2. |
5c0b350c91042dc33e3f254a26cb35a1 | 119 144-4 | 8.2 Testing DTS dictionary | This clause defines the test assertion for Document Security Store and Document Time-Stamp dictionary elements requirements. TA id: PAdES_BB/DTS/2 Normative source: [1] – Clause 6.3 Target: PAdES signature generator claiming conformance to PAdES signatures as specified in [1] or in [2] Predicate: For new signatures, ap... |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 1 Scope | The present document provides a generic schema for machine-readable cryptographic algorithms, and cipher suites catalogues based on IETF RFC 5698 [1] and specifies different formats such as XML [i.4] and JSON [i.5]. The present document is limited to a descriptive schema for algorithms and all parameters involved. No a... |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 2 References | |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 2.1 Normative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which a... |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 2.2 Informative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks i... |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 3 Definition of terms, symbols and abbreviations | |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 3.1 Terms | For the purposes of the present document, the terms given in ETSI TR 119 001 [i.1], IETF RFC 5698 [1] and the following apply: AdES (digital) signature: digital signature that is either a CAdES signature (CMS), or a PAdES signature (PDF), or a XAdES signature (XML), or a JAdES signature (JSON) |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 3.2 Symbols | Void. |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 3.3 Abbreviations | For the purposes of the present document, the abbreviations given in ETSI TR 119 001 [i.1] and the following apply: CMS Cryptographic Message Syntax DSA Digital Signature Algorithm DSSC Data Structure for the Security Suitability of Cryptographic Algorithms JSON JavaScript Object Notation OCSP Online Certificate Status... |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.1 Overview | The present document is based on IETF RFC 5698 [1]. A machine-readable catalogue may contain only a subset of the defined algorithms. Clause 4.2 describes the semantic of the different elements of the machine-readable algorithm catalogue independent of the specific format used. Annexes A and B specify the format-specif... |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2 Elements of a machine-readable algorithm catalogue | |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.1 Security-suitability-policy | The security-suitability-policy element shall be the root element of the machine-readable catalogue. The semantic of the security-suitability-policy element shall be as defined IETF RFC 5698 [1], clause 3.1. |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.2 Policy-name | The semantic of the policy-name element shall be as defined in IETF RFC 5698 [1], clause 3.2. |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.3 Publisher | The semantic of the publisher element shall be as defined in IETF RFC 5698 [1], clause 3.3. |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.4 Policy-issue-date | The semantic of the policy-issue-date element shall be as defined in IETF RFC 5698 [1], clause 3.4. |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.5 NextUpdate | The semantic of the next-update element shall be as defined in IETF RFC 5698 [1], clause 3.5. |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.6 Usage | The semantic of the usage element shall be as defined in IETF RFC 5698 [1], clause 3.6. |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.7 Algorithm | The semantic of the algorithm element shall be as defined in IETF RFC 5698 [1], clause 3.7. |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.8 Algorithm-identifier | The semantic of the algorithm-identifier element shall be as defined in IETF RFC 5698 [1], clause 3.8. |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.9 Evaluation | |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.9.1 General description | The semantic of the evaluation element shall be as defined in IETF RFC 5698 [1], clause 3.9. The evaluation element may contain a more-details element. The more-details element may contain zero, one or more algorithm-usage elements as defined in clause 4.2.9.2 to allow parameter- and context-specific evaluations of cry... |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.9.2 Algorithm-usage | The algorithm-usage element shall contain a URI which allows to further distinguish the validity period of an algorithm based on the usage. ETSI ETSI TS 119 322 V1.2.1 (2024-12) 9 EXAMPLE 1: It allows to differentiate between signature creation and signature validation use cases. NOTE 1: The amount of data of certifica... |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.9.3 Recommendation | The recommendation element shall be used to indicate that a mechanism and its parameters are either Recommended (R) or Legacy (L), as defined in ETSI TS 119 312 [i.2], clause 3.1. Omitting this element shall be equivalent to a recommended mechanism when the end date is absent or lies in the future. |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.10 Parameter | The semantic of the parameter element shall be as defined in IETF RFC 5698 [1], clause 3.10. |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.11 Validity | The semantic of the validity element shall be as defined in IETF RFC 5698 [1], clause 3.11. |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.12 Information | The semantic of the information element shall be as defined in IETF RFC 5698 [1], clause 3.12. |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 4.2.13 Signature | The signature element shall be as defined in IETF RFC 5698 [1], clause 3.13. 5 Machine-readable cryptographic algorithms, and cipher suites catalogues Machine-readable cryptographic algorithms, and cipher suites catalogues may be defined in different formats. Two formats are specified in the annexes A (XML [i.4]) and B... |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 6 Definition of Parameters | For interoperability reasons the recommendation of parameters names for RSA and DSA of IETF RFC 5698 [1], clause 5 should be followed. |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 7 Processing | The processing shall be as defined in IETF RFC 5698 [1], clause 6. ETSI ETSI TS 119 322 V1.2.1 (2024-12) 11 |
5598eb5c085b1600fb1024360b9fc028 | 119 322 | 8 Security Considerations | The security considerations shall be as defined in IETF RFC 5698 [1], clause 7. ETSI ETSI TS 119 322 V1.2.1 (2024-12) 12 Annex A (normative): XML Policy Schema A.1 SecuritySuitabilityPolicy The SecuritySuitabilityPolicy element shall be as defined in IETF RFC 5698 [1], clause 3.1. The id attribute shall be included whe... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 1 Scope | The present document lists cryptographic suites used for the creation and validation of digital signatures and electronic time stamps and related certificates. The present document builds on the agreed cryptographic mechanisms from SOG-IS [14]. It may be used also for electronic registered delivery services in the futu... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 2 References | |
08752d782f34fc3424740df1e49ff117 | 119 312 | 2.1 Normative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which a... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 2.2 Informative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks i... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 3 Definition of terms, symbols and abbreviations | |
08752d782f34fc3424740df1e49ff117 | 119 312 | 3.1 Terms | For the purposes of the present document, the following terms apply: cryptographic suite: combination of a signature scheme with a padding method and a cryptographic hash function (digital) signature: data associated to, including a cryptographic transformation of, a data unit that: a) allows to prove the source and in... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 3.2 Symbols | For the purposes of the present document, the following symbols apply: FR Identifier for Elliptic Curves defined by ANSSI |
08752d782f34fc3424740df1e49ff117 | 119 312 | 3.3 Abbreviations | For the purposes of the present document, the following abbreviations apply: ANSI American National Standards Institute ANSSI Agence Nationale de la Sécurité des Systèmes d'Information (National Agency for Security of Information Systems) CA Certification Authority CMS Cryptographic Message Syntax CRL Certificate Revoc... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 5 Hash functions | |
08752d782f34fc3424740df1e49ff117 | 119 312 | 5.1 General | The list of hash functions in table 1 shall be used. The functions shall be implemented as per the reference listed in table 1 and shall follow the recommendations provided in the SOG-IS Agreed Cryptographic Mechanisms [14]. The present document provides additional recommendations in the following clauses. Table 1: Agr... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 5.2 SHA hash functions | |
08752d782f34fc3424740df1e49ff117 | 119 312 | 5.2.1 SHA-512/256 | SHA-512/256 should not be used if SHA3-256 or SHA-512 can be used instead without truncation. NOTE: The difference to SHA-256 is the bigger inner state, which gives a better collision resistance. |
08752d782f34fc3424740df1e49ff117 | 119 312 | 6 Signature schemes | |
08752d782f34fc3424740df1e49ff117 | 119 312 | 6.1 Introduction | NOTE: A signature scheme consists of three algorithms: a key generation algorithm, a signature creation algorithm and a signature verification algorithm. The two latter are identified hereafter as a pair of algorithms. Each pair has its own name. |
08752d782f34fc3424740df1e49ff117 | 119 312 | 6.2 Signature algorithms | |
08752d782f34fc3424740df1e49ff117 | 119 312 | 6.2.1 General | The list of signature algorithms given in table 2 shall be used. The algorithms shall be implemented as per the reference listed in table 2 and shall follow the recommendations provided in the SOG-IS Agreed Cryptographic Mechanisms [14]. The present document provides additional recommendations and requirements in the f... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 6.2.2 Signature algorithms | |
08752d782f34fc3424740df1e49ff117 | 119 312 | 6.2.2.1 RSA | The RSA algorithm shall be used (SOG-IS recommended mechanism), if used with the padding scheme RSASSA-PSS [3], section 8.1. If RSA is used with the legacy padding scheme RSASSA-PKCS-v1_5 [3], section 8.2, it may be used (SOG-IS legacy mechanism). The key length shall be selected according to clause 8. The public expon... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 6.2.2.2 DSA | The DSA algorithm may be used (SOG-IS recommended mechanism) if the key length is chosen according to clause 8. NOTE: The dissemination of DSA in trust services is low. Therefore it is suggested to use other more widely deployed algorithms unless it is the only alternative for interoperability. Due to this fact signatu... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 6.2.2.3 EC based DSA algorithms | The EC-DSA algorithm shall be used (SOG-IS recommended mechanism) if the key length is chosen according to clause 8. EC-DSA and EC-SDSA-opt shall be used (SOG-IS recommended mechanisms) only if the elliptic curves are selected from the following table 3. When used, the algorithms shall be as specified by the references... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 6.3 Key generation | The key generation shall follow the recommendations and requirements in their normative references of table 2. |
08752d782f34fc3424740df1e49ff117 | 119 312 | 7 Signature suites | |
08752d782f34fc3424740df1e49ff117 | 119 312 | 7.1 Introduction | NOTE: The primary criteria for inclusion of an algorithm in the present document are: the algorithm is considered as agreed [14]; the algorithm is commonly used; and the algorithm can easily and unambiguously be referenced (for example by means of an OID). |
08752d782f34fc3424740df1e49ff117 | 119 312 | 7.2 General | NOTE 1: A cryptographic signature suite is a combination of message encoding functions including a hash function and a defined signature scheme using a standardized signature algorithm. A signature suite consists therefore of the following components: a message encoding method including the hash function; and a sig... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 7.3 Signature suites | Table 4 reflects the combination of the recommended hash functions and signature algorithms. Whereas the signature suites based on elliptic curves can be implemented in principle with any recommended curve, only those combinations are recommended by the present document where the output length of the hash function is t... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 8 Hash functions and key sizes versus time | |
08752d782f34fc3424740df1e49ff117 | 119 312 | 8.1 Introduction | In this clause recommendations are provided regarding the use of hash functions given in clause 5 and the key sizes to be used with the algorithms mentioned in clause 6. This clause is structured as follows: • Clause 8.2 explains the considerations on which the recommendations are based. ETSI ETSI TS 119 312 V1.4.3 (20... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 8.2 Basis for the recommendations | NOTE 1: The recommendations for algorithm and parameter strengths are characterized by taking a reasonable margin above minimum key lengths based on both extrapolations of current trends as well as estimations based on the necessary computing power needed to break a given algorithm. Such extrapolations are made in the ... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 8.3 Hash functions versus time | The hash functions listed in table 5 are expected to remain suitable during X years. Table 5: Recommended hash functions for a resistance during X years Entry name of the hash function 1 year 3 years 6 years SHA-224 usable usable unusable SHA-256 usable usable usable SHA-384 usable usable usable SHA-512 usable usable u... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 8.4 Recommended key sizes versus time | The parameters defined in following tables should be used. The key size (security parameter) for RSA is the bit length of the modulus n. Table 6: Recommended parameters for RSA for a resistance during X years Parameter 1 year 3 years 6 years Key size (log2(n) ≥ 1 900 ≥ 1 900 ≥ 3 000 ETSI ETSI TS 119 312 V1.4.3 (2023-08... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 9 Life time and resistance of hash functions and keys | |
08752d782f34fc3424740df1e49ff117 | 119 312 | 9.1 General notes | NOTE 1: The hash functions and signature algorithms defined in the present document are suitable to be used in the context of advanced electronic signatures ETSI TS 101 733 [i.6], ETSI TS 101 903 [i.7], ETSI TS 102 778 [i.8], ETSI EN 319 122 [i.17], ETSI EN 319 132 [i.18] and ETSI EN 319 142 [i.19]. NOTE 2: The time pe... |
08752d782f34fc3424740df1e49ff117 | 119 312 | 9.2 Time period resistance for hash functions | Hash functions should remain suitable as long as a signature verification still needs to be done. If not, a specific signature maintenance process shall be performed (see annex B for more information). A hash function used to compute the hash of a certificate, which is not a self-signed certificate, should remain suita... |
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