Reference record for OID 1.2.840.10045.2

Parent

1.2.840.10045 (ansi-x962, ansi-X9-62, ansi-x9-62)

Node code

Node names

keyType
id-publicKeyType
id-public-key-type

Numeric OID

1.2.840.10045.2

URN notation

urn:oid:1.2.840.10045.2

ASN.1 notation

{1 2 840 10045 2}

{iso(1) member-body(2) us(840) ansi-x962(10045) keyType(2)}
{iso(1) member-body(2) us(840) ansi-x962(10045) id-publicKeyType(2)}
{iso(1) member-body(2) us(840) ansi-x962(10045) id-public-key-type(2)}
{iso(1) member-body(2) us(840) ansi-X9-62(10045) keyType(2)}
{iso(1) member-body(2) us(840) ansi-X9-62(10045) id-publicKeyType(2)}
{iso(1) member-body(2) us(840) ansi-X9-62(10045) id-public-key-type(2)}
{iso(1) member-body(2) us(840) ansi-x9-62(10045) keyType(2)}
{iso(1) member-body(2) us(840) ansi-x9-62(10045) id-publicKeyType(2)}
{iso(1) member-body(2) us(840) ansi-x9-62(10045) id-public-key-type(2)}
{iso(1) member-body(2) us-iso(840) ansi-x962(10045) keyType(2)}
{iso(1) member-body(2) us-iso(840) ansi-x962(10045) id-publicKeyType(2)}
{iso(1) member-body(2) us-iso(840) ansi-x962(10045) id-public-key-type(2)}
{iso(1) member-body(2) us-iso(840) ansi-X9-62(10045) keyType(2)}
{iso(1) member-body(2) us-iso(840) ansi-X9-62(10045) id-publicKeyType(2)}
{iso(1) member-body(2) us-iso(840) ansi-X9-62(10045) id-public-key-type(2)}
{iso(1) member-body(2) us-iso(840) ansi-x9-62(10045) keyType(2)}
Additional combinations skipped.

OID-IRI notation

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

Named path variants

/iso/member-body/us/ansi-x962/keyType
/iso/member-body/us/ansi-x962/id-publicKeyType
/iso/member-body/us/ansi-x962/id-public-key-type
/iso/member-body/us/ansi-X9-62/keyType
/iso/member-body/us/ansi-X9-62/id-publicKeyType
/iso/member-body/us/ansi-X9-62/id-public-key-type
/iso/member-body/us/ansi-x9-62/keyType
/iso/member-body/us/ansi-x9-62/id-publicKeyType
/iso/member-body/us/ansi-x9-62/id-public-key-type
/iso/member-body/us-iso/ansi-x962/keyType
/iso/member-body/us-iso/ansi-x962/id-publicKeyType
/iso/member-body/us-iso/ansi-x962/id-public-key-type
/iso/member-body/us-iso/ansi-X9-62/keyType
/iso/member-body/us-iso/ansi-X9-62/id-publicKeyType
/iso/member-body/us-iso/ansi-X9-62/id-public-key-type
/iso/member-body/us-iso/ansi-x9-62/keyType
Additional combinations skipped.

Descriptions

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

Primary description: OID Repository

Public key type
View at oid-base.com

Source records

id-public-key-type

Status in source: unspecified.

Names: id-public-key-type

Technical details

{
  "smi_kind": "OBJECT IDENTIFIER",
  "definition": [
    "id-public-key-type",
    "OBJECT",
    "IDENTIFIER",
    "::=",
    "{",
    "ansi-X9",
    ".",
    "62",
    "2",
    "}"
  ]
}

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 · Official record
Published definition
```
id-public-key-type OBJECT IDENTIFIER  ::= { ansi-X9.62 2 }
```
Source data warning: The public-key-type reference prints ansi-X9.62; the declared local namespace is ansi-X9-62. Only this reviewed identifier spelling is repaired for numeric resolution. The original declaration and numeric arcs are preserved.
Related ASN.1 definitions
```
id-public-key-type OBJECT IDENTIFIER  ::= { ansi-X9.62 2 }
```
```
id-public-key-type OBJECT IDENTIFIER  ::= { ansi-X9.62 2 }

     id-ecPublicKey OBJECT IDENTIFIER ::= { id-publicKeyType 1 }
```
RFC 3279 use documented in May 2002

ECDSA and ECDH Keys · Section 2.3.5:

Literal namespace and value references from this RFC edition, with checked primary parent namespaces.

· 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: RFC3279 supplemental 2.3.5::id-public-key-type.
Source version and references

Downloaded: 2026-10-19T00:19:37.636853+00:00.

id-publicKeyType

Status in source: unspecified.

Names: id-publicKeyType

Technical details

{
  "smi_kind": "OBJECT IDENTIFIER",
  "definition": [
    "id-publicKeyType",
    "OBJECT",
    "IDENTIFIER",
    "::=",
    "{",
    "ansi-X9-62",
    "keyType",
    "(",
    "2",
    ")",
    "}"
  ]
}

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
```
id-publicKeyType OBJECT IDENTIFIER  ::= { ansi-X9-62 keyType(2) }
```
· 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::id-publicKeyType.
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
```
id-publicKeyType OBJECT IDENTIFIER  ::= { ansi-X9-62 keyType(2) }
```
· Download ANSI-X9-62.asn
Source location: ANSI-X9-62::id-publicKeyType.
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
```
id-publicKeyType OBJECT IDENTIFIER  ::= { ansi-X9-62 keyType(2) }
```
· Download TransientKey.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: ANSI-X9-62::id-publicKeyType.
Source version and references

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

Downloaded: 2026-10-19T21:41:03.278840+00:00.

id-publicKeyType

Status in source: unspecified.

Names: id-publicKeyType

Technical details

{
  "definition": [
    "id-publicKeyType",
    "OBJECT",
    "IDENTIFIER",
    "::=",
    "{",
    "ansi-X9-62",
    "keyType",
    "(",
    "2",
    ")",
    "}"
  ]
}

BSI published OID specifications · Publisher's source file: BSI-TR-03111_V-2-0_pdf.pdf
Published definition
```
id-publicKeyType   OBJECT IDENTIFIER ::= { ansi-X9-62 keyType(2) }
```
· Download BSI-TR-03111_V-2-0_pdf.pdf
Source location: Physical PDF page 30 / id-publicKeyType.
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
```
id-publicKeyType   OBJECT IDENTIFIER ::= { ansi-X9-62 keyType(2) }
```
· Download BSI-TR-03111_V-2-1_pdf.pdf
Source location: Physical PDF page 30 / id-publicKeyType.
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 (2)

OID	Name	Direct children	Descendants	Description
1.2.840.10045.2.1	ecPublicKey, id-ecPublicKey, ecPublicKeyType, pk-ec	0	0	Elliptic curve public key cryptography
1.2.840.10045.2.2	id-ecPublicKeyRestricted, ecPublicKeyTypeRestricted	0	0

Siblings (5)

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
1.2.840.10045.3	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