Reference record for OID 1.2.840.10045

Parent

1.2.840 (us, us-iso)

Node code

10045

Node names

ansi-x962
ansi-X9-62
ansi-x9-62

Numeric OID

1.2.840.10045

URN notation

urn:oid:1.2.840.10045

ASN.1 notation

{1 2 840 10045}

{iso(1) member-body(2) us(840) ansi-x962(10045)}
{iso(1) member-body(2) us(840) ansi-X9-62(10045)}
{iso(1) member-body(2) us(840) ansi-x9-62(10045)}
{iso(1) member-body(2) us-iso(840) ansi-x962(10045)}
{iso(1) member-body(2) us-iso(840) ansi-X9-62(10045)}
{iso(1) member-body(2) us-iso(840) ansi-x9-62(10045)}
{iso(1) memberBody(2) us(840) ansi-x962(10045)}
{iso(1) memberBody(2) us(840) ansi-X9-62(10045)}
{iso(1) memberBody(2) us(840) ansi-x9-62(10045)}
{iso(1) memberBody(2) us-iso(840) ansi-x962(10045)}
{iso(1) memberBody(2) us-iso(840) ansi-X9-62(10045)}
{iso(1) memberBody(2) us-iso(840) ansi-x9-62(10045)}

OID-IRI notation

/1/2/840/10045
/ISO/Member-Body/US/10045
/ISO/Member-Body/840/10045
/ISO/2/840/10045

Named path variants

/iso/member-body/us/ansi-x962
/iso/member-body/us/ansi-X9-62
/iso/member-body/us/ansi-x9-62
/iso/member-body/us-iso/ansi-x962
/iso/member-body/us-iso/ansi-X9-62
/iso/member-body/us-iso/ansi-x9-62
/iso/memberBody/us/ansi-x962
/iso/memberBody/us/ansi-X9-62
/iso/memberBody/us/ansi-x9-62
/iso/memberBody/us-iso/ansi-x962
/iso/memberBody/us-iso/ansi-X9-62
/iso/memberBody/us-iso/ansi-x9-62

Descriptions

Descriptions may differ between sources. The primary description is shown first.

Primary description: OID Repository

ANSI X9.62 standard (1998) "Public Key Cryptography for the Financial Services Industry: The Elliptic Curve Digital Signature Algorithm (ECDSA)"
View at oid-base.com

Source records

ansi-x9-62

Status in source: unspecified.

Names: ansi-x9-62

Technical details

{
  "smi_kind": "OBJECT IDENTIFIER",
  "definition": [
    "ansi-x9-62",
    "ID",
    "::=",
    "{",
    "us-iso",
    "ansi-x962",
    "(",
    "10045",
    ")",
    "}"
  ]
}

ITU official formal descriptions · Publisher's source file: AlgorithmObjectIdentifiers.asn
Module: AlgorithmObjectIdentifiers
Published definition
```
ansi-x9-62              ID ::= { us-iso ansi-x962(10045) }
```
Module imports
```
{'UsefulDefinitions': ['algorithm', 'authenticationFramework'], 'AuthenticationFramework': ['ALGORITHM', 'AlgorithmIdentifier', 'SupportedAlgorithms', 'SupportedCurves']}
```
· Download AlgorithmObjectIdentifiers.asn
Related source files and packages:
- ASN.1 class AuthenticationFrameworkFile: wftp3/Public/t/fl/itu-t/x/x509/2016/AuthenticationFramework.asn; 17,912 bytes
Source location: AlgorithmObjectIdentifiers::ansi-x9-62.
Source version and references

Published package: ITU-T X.509 2016; file: AlgorithmObjectIdentifiers.asn.

Downloaded: 2026-10-19T21:40:37.022258+00:00.
ITU official formal descriptions · Publisher's source file: AlgorithmObjectIdentifiers.html · Official record
Module: AlgorithmObjectIdentifiers
Published definition
```
ansi-x9-62              ID ::= { us-iso ansi-x962(10045) }
```
Module imports
```
{'UsefulDefinitions': ['algorithm'], 'AuthenticationFramework': ['ALGORITHM', 'AlgorithmIdentifier', 'SupportedAlgorithms', 'SupportedCurves']}
```
· Download AlgorithmObjectIdentifiers.html
Related source files and packages:
- ASN.1 class AuthenticationFrameworkFile: ITU-T/formal-language/itu-t/x/x509/2019/AuthenticationFramework.html; 20,677 bytes
Source location: AlgorithmObjectIdentifiers::ansi-x9-62.
Source version and references

Published package: ITU-T X.509 2019-10; file: AlgorithmObjectIdentifiers.html.

Downloaded: 2026-10-20T15:07:33.839767+00:00.

ansi-X9-62

Status in source: unspecified.

Names: ansi-X9-62

Technical details

{
  "smi_kind": "OBJECT IDENTIFIER",
  "definition": [
    "ansi-X9-62",
    "OBJECT",
    "IDENTIFIER",
    "::=",
    "{",
    "iso",
    "(",
    "1",
    ")",
    "member-body",
    "(",
    "2",
    ")",
    "us",
    "(",
    "840",
    ")",
    "10045",
    "}"
  ]
}

RFC Editor · RFC 3279 · RFC errata · Publisher's source file: Algorithms and Identifiers for the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile
Module: PKIX1Algorithms88
Published definition
```
ansi-X9-62 OBJECT IDENTIFIER ::= {
        iso(1) member-body(2) us(840) 10045 }
```
· Download Algorithms and Identifiers for the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile
Related source files and packages:
- RFC TXT — rfc3447.txtFile: rfc/rfc3447.txt; 143,173 bytes
- RFC TXT — rfc5912.txtFile: rfc/rfc5912.txt; 216,154 bytes
- RFC TXT — rfc8017.txtFile: rfc/rfc8017.txt; 154,696 bytes
Source location: PKIX1Algorithms88::ansi-X9-62.
Source version and references

Downloaded: 2026-10-19T00:19:37.636853+00:00.
ITU official formal descriptions · Publisher's source file: ANSI-X9-62.asn
Module: ANSI-X9-62
Published definition
```
ansi-X9-62 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) 10045 }
```
· Download ANSI-X9-62.asn
Source location: ANSI-X9-62::ansi-X9-62.
Source version and references

Published package: ITU-T X.894 2018-cor1; file: ANSI-X9-62.asn.

Downloaded: 2026-10-19T21:41:01.280052+00:00.
ITU official formal descriptions · Publisher's source file: TransientKey.asn
Module: ANSI-X9-62
Published definition
```
ansi-X9-62 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840) 10045 }
```
· Download TransientKey.asn
Source location: ANSI-X9-62::ansi-X9-62.
Source version and references

Published package: ITU-T X.894 2018-cor1; file: TransientKey.asn.

Downloaded: 2026-10-19T21:41:03.278840+00:00.
RFC Editor · RFC 5759 · RFC errata · Publisher's source file: Suite B Certificate and Certificate Revocation List (CRL) Profile · Official record
Published definition
```
ansi-X9-62 OBJECT IDENTIFIER ::= {
         iso(1) member-body(2) us(840) 10045 }
```
RFC 5759 use documented in January 2010

Suite B Object Identifiers · Section 3.2: Suite B Object Identifiers

· Download Suite B Certificate and Certificate Revocation List (CRL) Profile
Source location: RFC5759 section 3.2::ansi-X9-62.
Source version and references

Downloaded: 2026-10-19T00:22:05.980423+00:00.
RFC Editor · RFC 8603 · RFC errata · Publisher's source file: Commercial National Security Algorithm (CNSA) Suite Certificate and Certificate Revocation List (CRL) Profile · Official record
Published definition
```
ansi-X9-62 OBJECT IDENTIFIER ::= {
            iso(1) member-body(2) us(840) 10045 }
```
RFC 8603 use documented in May 2019

CNSA Suite Object Identifiers for ECDSA · Section 4.2.1: CNSA Suite Object Identifiers for ECDSA

· Download Commercial National Security Algorithm (CNSA) Suite Certificate and Certificate Revocation List (CRL) Profile
Source location: RFC8603 section 4.2.1::ansi-X9-62.
Source version and references

Downloaded: 2026-10-19T00:25:18.691597+00:00.

ansi-x9-62

Status in source: unspecified.

Names: ansi-x9-62

Technical details

{
  "smi_kind": "OBJECT IDENTIFIER",
  "definition": [
    "ansi-x9-62",
    "OBJECT",
    "IDENTIFIER",
    "::=",
    "{",
    "iso",
    "(",
    "1",
    ")",
    "member-body",
    "(",
    "2",
    ")",
    "us",
    "(",
    "840",
    ")",
    "10045",
    "}"
  ]
}

RFC Editor · RFC 5753 · RFC errata · Publisher's source file: Use of Elliptic Curve Cryptography (ECC) Algorithms in Cryptographic Message Syntax (CMS) · Official record
Published definition
```
ansi-x9-62 OBJECT IDENTIFIER ::= {
        iso(1) member-body(2) us(840) 10045 }
```
Related ASN.1 definitions
```
ansi-x9-62 OBJECT IDENTIFIER ::= {
        iso(1) member-body(2) us(840) 10045 }
```
```
where

      ansi-x9-62 OBJECT IDENTIFIER ::= {
        iso(1) member-body(2) us(840) 10045 }

   When the object identifier id-ecPublicKey is used here with an
   algorithm identifier, the associated parameters MUST be either absent
   or ECParameters.  Implementations MUST accept id-ecPublicKey with
   absent and ECParameters parameters.  If ECParameters is present, its
```
RFC 5753 use documented in January 2010

Originator Public Key · Section 7.1.2:

Literal namespace and algorithm references from this RFC edition; the cited section specifies their protocol role.

· Download Use of Elliptic Curve Cryptography (ECC) Algorithms in Cryptographic Message Syntax (CMS)
Source location: RFC5753 supplemental 7.1.2::ansi-x9-62.
Source version and references

Downloaded: 2026-10-19T00:22:05.619181+00:00.
RFC Editor · RFC 3278 · RFC errata · Publisher's source file: Use of Elliptic Curve Cryptography (ECC) Algorithms in Cryptographic Message Syntax (CMS) · Official record
Published definition
```
ansi-x9-62 OBJECT IDENTIFIER ::= { iso(1) member-body(2) us(840)
        10045 }
```
RFC 3278 use documented in May 2002

Algorithm identifiers · Section 8.1: Algorithm identifiers

· Download Use of Elliptic Curve Cryptography (ECC) Algorithms in Cryptographic Message Syntax (CMS)
Source location: RFC3278 section 8.1::ansi-x9-62.
Source version and references

Downloaded: 2026-10-19T00:19:37.597513+00:00.

ansi-X9-62

Status in source: unspecified.

Names: ansi-X9-62

Technical details

{
  "definition": [
    "ansi-X9-62",
    "OBJECT",
    "IDENTIFIER",
    "::=",
    "{",
    "iso",
    "(",
    "1",
    ")",
    "member-body",
    "(",
    "2",
    ")",
    "us",
    "(",
    "840",
    ")",
    "10045",
    "}"
  ]
}

BSI published OID specifications · Publisher's source file: BSI-TR-03111_V-2-0_pdf.pdf
Published definition
```
ansi-X9-62 OBJECT IDENTIFIER ::= {
       iso(1) member-body(2) us(840) 10045 }
```
· Download BSI-TR-03111_V-2-0_pdf.pdf
Source location: Physical PDF page 30 / ansi-X9-62.
Source version and references

Published package: BSI TR-03111 Elliptic Curve Cryptography, Version 2.0 2.0; file: BSI-TR-03111_V-2-0_pdf.pdf.

Downloaded: 2026-10-20T01:31:35.437726+00:00.
BSI published OID specifications · Publisher's source file: BSI-TR-03111_V-2-1_pdf.pdf
Published definition
```
ansi-X9-62 OBJECT IDENTIFIER ::= {
       iso(1) member-body(2) us(840) 10045 }
```
· Download BSI-TR-03111_V-2-1_pdf.pdf
Source location: Physical PDF page 30 / ansi-X9-62.
Source version and references

Published package: BSI TR-03111 Elliptic Curve Cryptography, Version 2.10 2.10; file: BSI-TR-03111_V-2-1_pdf.pdf.

Downloaded: 2026-10-20T01:31:34.378088+00:00.

Current Registration Authority

X9F

Direct children (6)

OID	Name	Direct children	Descendants	Description
1.2.840.10045.0	0	1	1
1.2.840.10045.1	fieldType, id-fieldType	2	6	Field type
1.2.840.10045.2	keyType, id-publicKeyType, id-public-key-type	2	2	Public key type
1.2.840.10045.3	curves, ellipticCurve	2	29	ANSI X9.62 named elliptic curves
1.2.840.10045.4	signatures, id-ecSigType	3	7	ANSI X9.62 ECDSA signatures or modules
1.2.840.10045.5	module	1	1	Modules

Siblings (55)

OID	Name	Direct children	Descendants	Description
1.2.840.114283	114283, id-globalplatform	2	3	GlobalPlatform
1.2.840.114350	epic, epic-OID	0	0	Epic Systems Corporation
1.2.840.114398	medical-informatics-engineering	0	0	Medical Informatics Engineering
1.2.840.114402	incits	0	0	InterNational Committee for Information Technology Standards (INCITS)
1.2.840.912006	secure-identity-solutions	1	1	Secure Identity Solutions