Reference record for OID 1.2.840.10045.3.1.1

Parent

1.2.840.10045.3.1 (prime, primeCurve)

Node code

Node names

prime192v1
secp192r1
ansix9p192r1

Numeric OID

1.2.840.10045.3.1.1

URN notation

urn:oid:1.2.840.10045.3.1.1

ASN.1 notation

{1 2 840 10045 3 1 1}

{iso(1) member-body(2) us(840) ansi-x962(10045) curves(3) prime(1) prime192v1(1)}
{iso(1) member-body(2) us(840) ansi-x962(10045) curves(3) prime(1) secp192r1(1)}
{iso(1) member-body(2) us(840) ansi-x962(10045) curves(3) prime(1) ansix9p192r1(1)}
{iso(1) member-body(2) us(840) ansi-x962(10045) curves(3) primeCurve(1) prime192v1(1)}
{iso(1) member-body(2) us(840) ansi-x962(10045) curves(3) primeCurve(1) secp192r1(1)}
{iso(1) member-body(2) us(840) ansi-x962(10045) curves(3) primeCurve(1) ansix9p192r1(1)}
{iso(1) member-body(2) us(840) ansi-x962(10045) ellipticCurve(3) prime(1) prime192v1(1)}
{iso(1) member-body(2) us(840) ansi-x962(10045) ellipticCurve(3) prime(1) secp192r1(1)}
{iso(1) member-body(2) us(840) ansi-x962(10045) ellipticCurve(3) prime(1) ansix9p192r1(1)}
{iso(1) member-body(2) us(840) ansi-x962(10045) ellipticCurve(3) primeCurve(1) prime192v1(1)}
{iso(1) member-body(2) us(840) ansi-x962(10045) ellipticCurve(3) primeCurve(1) secp192r1(1)}
{iso(1) member-body(2) us(840) ansi-x962(10045) ellipticCurve(3) primeCurve(1) ansix9p192r1(1)}
{iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3) prime(1) prime192v1(1)}
{iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3) prime(1) secp192r1(1)}
{iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3) prime(1) ansix9p192r1(1)}
{iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3) primeCurve(1) prime192v1(1)}
Additional combinations skipped.

OID-IRI notation

/1/2/840/10045/3/1/1
/ISO/Member-Body/US/10045/3/1/1
/ISO/Member-Body/840/10045/3/1/1
/ISO/2/840/10045/3/1/1

Named path variants

/iso/member-body/us/ansi-x962/curves/prime/prime192v1
/iso/member-body/us/ansi-x962/curves/prime/secp192r1
/iso/member-body/us/ansi-x962/curves/prime/ansix9p192r1
/iso/member-body/us/ansi-x962/curves/primeCurve/prime192v1
/iso/member-body/us/ansi-x962/curves/primeCurve/secp192r1
/iso/member-body/us/ansi-x962/curves/primeCurve/ansix9p192r1
/iso/member-body/us/ansi-x962/ellipticCurve/prime/prime192v1
/iso/member-body/us/ansi-x962/ellipticCurve/prime/secp192r1
/iso/member-body/us/ansi-x962/ellipticCurve/prime/ansix9p192r1
/iso/member-body/us/ansi-x962/ellipticCurve/primeCurve/prime192v1
/iso/member-body/us/ansi-x962/ellipticCurve/primeCurve/secp192r1
/iso/member-body/us/ansi-x962/ellipticCurve/primeCurve/ansix9p192r1
/iso/member-body/us/ansi-X9-62/curves/prime/prime192v1
/iso/member-body/us/ansi-X9-62/curves/prime/secp192r1
/iso/member-body/us/ansi-X9-62/curves/prime/ansix9p192r1
/iso/member-body/us/ansi-X9-62/curves/primeCurve/prime192v1
Additional combinations skipped.

Descriptions

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

Primary description: OID Repository

Elliptic curve domain "secp192r1" listed in "SEC 2" recommended elliptic curve domain
View at oid-base.com

The SEC (Standards for Efficient Cryptography) curves provide elliptic curve domain parameters at commonly required security levels for use by implementers of ECC standards like ANSI X9.62, ANSI X9.63, IEEE P1363, and other standards.

Source records

secp192r1

Status in source: unspecified.

Names: secp192r1

Technical details

{
  "smi_kind": "OBJECT IDENTIFIER",
  "definition": [
    "secp192r1",
    "OBJECT",
    "IDENTIFIER",
    "::=",
    "{",
    "iso",
    "(",
    "1",
    ")",
    "member-body",
    "(",
    "2",
    ")",
    "us",
    "(",
    "840",
    ")",
    "ansi-X9-62",
    "(",
    "10045",
    ")",
    "curves",
    "(",
    "3",
    ")",
    "prime",
    "(",
    "1",
    ")",
    "1",
    "}"
  ]
}

RFC Editor · RFC 5480 · RFC errata · Publisher's source file: Elliptic Curve Cryptography Subject Public Key Information
Module: PKIX1Algorithms2008
Published definition
```
secp192r1 OBJECT IDENTIFIER ::= {
     iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3)
     prime(1) 1 }
```
Module imports
```
{'PKIX1-PSS-OAEP-Algorithms': ['id-sha224', 'id-sha256', 'id-sha384', 'id-sha512']}
```
· Download Elliptic Curve Cryptography Subject Public Key Information
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: PKIX1Algorithms2008::secp192r1.
Source version and references

Downloaded: 2026-10-19T00:21:49.385773+00:00.
RFC Editor · RFC 5912 · RFC errata · Publisher's source file: New ASN.1 Modules for the Public Key Infrastructure Using X.509 (PKIX)
Module: PKIXAlgs-2009
Published definition
```
secp192r1 OBJECT IDENTIFIER ::= {









    iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3)
    prime(1) 1 }
```
Module imports
```
{'AlgorithmInformation-2009': ['PUBLIC-KEY', 'SIGNATURE-ALGORITHM', 'DIGEST-ALGORITHM', 'SMIME-CAPS'], 'PKIX1-PSS-OAEP-Algorithms-2009': ['mda-sha224', 'mda-sha256', 'mda-sha384', 'mda-sha512']}
```
· Download New ASN.1 Modules for the Public Key Infrastructure Using X.509 (PKIX)
Related source files and packages:
- RFC TXT — rfc2985.txtFile: rfc/rfc2985.txt; 70,703 bytes
- RFC TXT — rfc3447.txtFile: rfc/rfc3447.txt; 143,173 bytes
- ASN.1 class CryptographicMessageSyntax-2009File: rfc/rfc5911.txt; 101,576 bytes
Show all 12 related files and packages
- RFC TXT — rfc8017.txtFile: rfc/rfc8017.txt; 154,696 bytes
- RFC XML — rfc9174.xmlFile: rfc/rfc9174.xml; 300,633 bytes
- RFC XML — rfc9480.xmlFile: rfc/rfc9480.xml; 214,691 bytes
- RFC XML — rfc9608.xmlFile: rfc/rfc9608.xml; 49,591 bytes
- RFC XML — rfc9654.xmlFile: rfc/rfc9654.xml; 49,657 bytes
- RFC XML — rfc9810.xmlFile: rfc/rfc9810.xml; 578,791 bytes
- RFC XML — rfc10002.xmlFile: rfc/rfc10002.xml; 387,783 bytes
- RFC Editor — verified errata original JSON11.2 MiB
- IANA SMI — definitive module identifier 1.3.6.1.5.5.7.0.49File: assignments/smi-numbers/smi-numbers.xml; 441,011 bytes
Source location: PKIXAlgs-2009::secp192r1.
Source version and references

Downloaded: 2026-10-19T00:22:16.502984+00:00.
ITU official formal descriptions · Publisher's source file: PKIXAlgs-2009.asn
Module: PKIXAlgs-2009
Published definition
```
secp192r1 OBJECT IDENTIFIER ::= {
iso(1) member-body(2) us(840) ansi-X9-62(10045) curves(3)
prime(1) 1 }
```
Module imports
```
{'AlgorithmInformation-2009': ['PUBLIC-KEY', 'SIGNATURE-ALGORITHM', 'DIGEST-ALGORITHM', 'SMIME-CAPS'], 'PKIX1-PSS-OAEP-Algorithms-2009': ['mda-sha224', 'mda-sha256', 'mda-sha384', 'mda-sha512']}
```
· Download PKIXAlgs-2009.asn
Related source files and packages:
- ASN.1 class AlgorithmInformation-2009File: wftp3/Public/t/fl/itu-t/x/x894/2018-cor1/AlgorithmInformation-2009.asn; 15,426 bytes
Source location: PKIXAlgs-2009::secp192r1.
Source version and references

Published package: ITU-T X.894 2018-cor1; file: PKIXAlgs-2009.asn.

Downloaded: 2026-10-19T21:41:02.877759+00:00.
RFC Editor · RFC 9481 · RFC errata · Publisher's source file: Certificate Management Protocol (CMP) Algorithms · Official record
Published definition
```
secp192r1 OBJECT IDENTIFIER ::= { iso(1) member-body(2)
         us(840) ansi-X9-62(10045) curves(3) prime(1) 1 }
```
CMP use documented in November 2023

ECDSA signatures and named curves · Section 3.2: ECDSA

ECDH/ECMQV key agreement and named curves · Section 4.1.2: ECDH

· Download Certificate Management Protocol (CMP) Algorithms
Related source files and packages:
- RFC 5753 — independent published ECDH/ECMQV identifiersFile: rfc/rfc5753.txt; 112,095 bytes
Source location: RFC9481 section 3.2 declaration 18::secp192r1.
Source version and references

Downloaded: 2026-10-19T00:26:22.977233+00:00.

ansix9p192r1

Status in source: unspecified.

Names: ansix9p192r1

Technical details

{
  "smi_kind": "OBJECT IDENTIFIER",
  "definition": [
    "ansix9p192r1",
    "OBJECT",
    "IDENTIFIER",
    "::=",
    "{",
    "primeCurve",
    "1",
    "}"
  ]
}

ITU official formal descriptions · Publisher's source file: ANSI-X9-62.asn
Module: ANSI-X9-62
Published definition
```
ansix9p192r1 OBJECT IDENTIFIER ::= {primeCurve  1 }
```
· Download ANSI-X9-62.asn
Source location: ANSI-X9-62::ansix9p192r1.
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
```
ansix9p192r1 OBJECT IDENTIFIER ::= {primeCurve  1 }
```
· 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::ansix9p192r1.
Source version and references

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

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

secp192r1

Status in source: unspecified.

Names: secp192r1

Technical details

{
  "smi_kind": "OBJECT IDENTIFIER",
  "definition": [
    "secp192r1",
    "ID",
    "::=",
    "{",
    "ansi-x9-62",
    "curves",
    "(",
    "3",
    ")",
    "prime",
    "(",
    "1",
    ")",
    "1",
    "}"
  ]
}

ITU official formal descriptions · Publisher's source file: AlgorithmObjectIdentifiers.asn
Module: AlgorithmObjectIdentifiers
Published definition
```
secp192r1       ID ::= { ansi-x9-62 curves(3) prime(1) 1 }
```
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::secp192r1.
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
```
secp192r1       ID ::= { ansi-x9-62 curves(3) prime(1) 1 }
```
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::secp192r1.
Source version and references

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

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

prime192v1

Status in source: unspecified.

Names: prime192v1

Technical details

{
  "smi_kind": "OBJECT IDENTIFIER",
  "definition": [
    "prime192v1",
    "OBJECT",
    "IDENTIFIER",
    "::=",
    "{",
    "primeCurve",
    "1",
    "}"
  ]
}

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
```
prime192v1  OBJECT IDENTIFIER  ::=  { primeCurve  1 }
```
· 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::prime192v1.
Source version and references

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

Current Registration Authority (inferred from ancestor 1.2.840.10045)

X9F

Siblings (6)

OID	Name	Description
1.2.840.10045.3.1.2	prime192v2	Prime 192 V2
1.2.840.10045.3.1.3	prime192v3	Prime 192 V3
1.2.840.10045.3.1.4	prime239v1	Prime 239 V1
1.2.840.10045.3.1.5	prime239v2	Prime 239 V2
1.2.840.10045.3.1.6	prime239v3	Prime 239 V3
1.2.840.10045.3.1.7	prime256v1, secp256r1, ansix9p256r1, NIST P-256, ansip256r1	256 bit elliptic curve (szOID_ECC_CURVE_P256) Also: Standards for Efficient Cryptography (SEC) 2 recommended elliptic curve do…