Reference record for OID 1.3.6.1.5.5.7.21

Parent

1.3.6.1.5.5.7 (pkix, id-pkix)

Node code

Node name

id-ppl

Numeric OID

1.3.6.1.5.5.7.21

URN notation

urn:oid:1.3.6.1.5.5.7.21

ASN.1 notation

{1 3 6 1 5 5 7 21}

{iso(1) identified-organization(3) dod(6) internet(1) security(5) mechanisms(5) pkix(7) id-ppl(21)}
{iso(1) identified-organization(3) dod(6) internet(1) security(5) mechanisms(5) id-pkix(7) id-ppl(21)}
{iso(1) identified-organization(3) dod(6) internet(1) intSecurity(5) mechanisms(5) pkix(7) id-ppl(21)}
{iso(1) identified-organization(3) dod(6) internet(1) intSecurity(5) mechanisms(5) id-pkix(7) id-ppl(21)}
{iso(1) org(3) dod(6) internet(1) security(5) mechanisms(5) pkix(7) id-ppl(21)}
{iso(1) org(3) dod(6) internet(1) security(5) mechanisms(5) id-pkix(7) id-ppl(21)}
{iso(1) org(3) dod(6) internet(1) intSecurity(5) mechanisms(5) pkix(7) id-ppl(21)}
{iso(1) org(3) dod(6) internet(1) intSecurity(5) mechanisms(5) id-pkix(7) id-ppl(21)}
{iso(1) iso-identified-organization(3) dod(6) internet(1) security(5) mechanisms(5) pkix(7) id-ppl(21)}
{iso(1) iso-identified-organization(3) dod(6) internet(1) security(5) mechanisms(5) id-pkix(7) id-ppl(21)}
{iso(1) iso-identified-organization(3) dod(6) internet(1) intSecurity(5) mechanisms(5) pkix(7) id-ppl(21)}
{iso(1) iso-identified-organization(3) dod(6) internet(1) intSecurity(5) mechanisms(5) id-pkix(7) id-ppl(21)}
{iso(1) iso-organization(3) dod(6) internet(1) security(5) mechanisms(5) pkix(7) id-ppl(21)}
{iso(1) iso-organization(3) dod(6) internet(1) security(5) mechanisms(5) id-pkix(7) id-ppl(21)}
{iso(1) iso-organization(3) dod(6) internet(1) intSecurity(5) mechanisms(5) pkix(7) id-ppl(21)}
{iso(1) iso-organization(3) dod(6) internet(1) intSecurity(5) mechanisms(5) id-pkix(7) id-ppl(21)}

OID-IRI notation

/1/3/6/1/5/5/7/21
/ISO/Identified-Organization/6/1/5/5/7/21
/ISO/3/6/1/5/5/7/21

Named path variants

/iso/identified-organization/dod/internet/security/mechanisms/pkix/id-ppl
/iso/identified-organization/dod/internet/security/mechanisms/id-pkix/id-ppl
/iso/identified-organization/dod/internet/intSecurity/mechanisms/pkix/id-ppl
/iso/identified-organization/dod/internet/intSecurity/mechanisms/id-pkix/id-ppl
/iso/org/dod/internet/security/mechanisms/pkix/id-ppl
/iso/org/dod/internet/security/mechanisms/id-pkix/id-ppl
/iso/org/dod/internet/intSecurity/mechanisms/pkix/id-ppl
/iso/org/dod/internet/intSecurity/mechanisms/id-pkix/id-ppl
/iso/iso-identified-organization/dod/internet/security/mechanisms/pkix/id-ppl
/iso/iso-identified-organization/dod/internet/security/mechanisms/id-pkix/id-ppl
/iso/iso-identified-organization/dod/internet/intSecurity/mechanisms/pkix/id-ppl
/iso/iso-identified-organization/dod/internet/intSecurity/mechanisms/id-pkix/id-ppl
/iso/iso-organization/dod/internet/security/mechanisms/pkix/id-ppl
/iso/iso-organization/dod/internet/security/mechanisms/id-pkix/id-ppl
/iso/iso-organization/dod/internet/intSecurity/mechanisms/pkix/id-ppl
/iso/iso-organization/dod/internet/intSecurity/mechanisms/id-pkix/id-ppl

Source records

1.3.6.1.5.5.7.21

Status in source: unspecified.

Names: id-ppl

Technical details

{
  "smi_kind": "OBJECT IDENTIFIER",
  "definition": [
    "id-ppl",
    "OBJECT",
    "IDENTIFIER",
    "::=",
    "{",
    "id-pkix",
    "21",
    "}"
  ]
}

RFC Editor · RFC 3820 · RFC errata · Publisher's source file
Module: PKIXproxy88
Published definition
```
id-ppl  OBJECT IDENTIFIER ::= { id-pkix 21 }
```
· Archived source file · RFC TXT — rfc5912.txt
Source location: PKIXproxy88::id-ppl.
Source version and references

Downloaded: 2026-10-19T00:20:11.003848+00:00.
RFC Editor · RFC 7299 · RFC errata · Publisher's source file · Official record
Published definition
```
id-ppl  OBJECT IDENTIFIER ::= { id-pkix 21 }
```
Historical registry context (July 2014)

SMI Security for PKIX Proxy Certificate Policy Languages · 1.3.6.1.5.5.7.21.

Allocation policy in this publication: Specification Required. Current IANA registry

· Archived source file
Source location: RFC7299 section 2::id-ppl.
Source version and references

Downloaded: 2026-10-19T00:23:50.834312+00:00.

Proxy certificate policy languages

Status in source: unspecified.

Technical details

{
  "value": "21",
  "description": "Proxy certificate policy languages"
}

iana-smi · Publisher's source file · Archived source file
Source location: smi-numbers-1.3.6.1.5.5.7/record[22].
Source version and references

Downloaded: 2026-10-18T22:58:17.903721+00:00.
RFC Editor · RFC 7299 · RFC errata · Publisher's source file · Official record
Historical registry context (July 2014)

SMI Security for PKIX · 1.3.6.1.5.5.7.

Status in this publication: Assigned.

Allocation policy in this publication: Specification Required. Current IANA registry
```
21       Proxy certificate policy languages      [RFC7299]
```
· Archived source file
Source location: RFC7299 section 3.2 allocation 21.
Source version and references

Downloaded: 2026-10-19T00:23:50.834312+00:00.

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

Primary description: OID Repository

Proxy certificate policy languages
View at oid-base.com

Information from OID Repository

See IETF RFC 3820.

First Registration Authority (inferred from ancestor 1.3.6.1.5.5.7)

IETF PKIX Working group

Current Registration Authority (inferred from ancestor 1.3.6.1.5.5.7)

Internet Assigned Numbers Authority (IANA)

Direct children (3)

OID	Name	Direct children	Descendants	Description
1.3.6.1.5.5.7.21.0	id-ppl-anyLanguage	0	0
1.3.6.1.5.5.7.21.1	id-ppl-inheritAll, id-ppl-inheritALL	0	0
1.3.6.1.5.5.7.21.2	id-ppl-independent	0	0

Siblings (26)

OID	Name	Direct children	Descendants	Description
1.3.6.1.5.5.7.0	mod, id-mod, id-pkixmod	128	128	ASN.1 modules
1.3.6.1.5.5.7.1	pe, id-pe	38	40	Public-Key Infrastructure X.509 (PKIX) certificate extensions
1.3.6.1.5.5.7.2	qt, id-qt	5	5	PKIX Policy Qualifier Types
1.3.6.1.5.5.7.3	kp, id-kp, send-kp	45	52	Extended Key Purposes (KPs)
1.3.6.1.5.5.7.4	it, id-it	24	24	Certificate Management Protocol (CMP) information types
1.3.6.1.5.5.7.5	pkip, id-pkip	3	19	Certificate Request Message Format (CRMF) registration
1.3.6.1.5.5.7.6	algorithms, id-alg	55	55	PKIX algorithms
1.3.6.1.5.5.7.7	cmc, id-cmc	34	46	Certificate Management over CMS (CMC) controls
1.3.6.1.5.5.7.8	on, id-on	12	12	Other name forms
1.3.6.1.5.5.7.9	pda, ietf-at, id-pda	5	5	Personal data attributes
1.3.6.1.5.5.7.10	attributeCertificate, id-aca	7	7	Attribute certificate attributes
1.3.6.1.5.5.7.11	qcs, id-qcs	2	2	Qualified Certificate (QC) statements
1.3.6.1.5.5.7.12	cct, id-cct	3	3	Certificate Management over Cryptographic message syntax (CMC) content types
1.3.6.1.5.5.7.13	test, id-TEST	8	8	Certificate policy identifiers provided for testing certificate handling software
1.3.6.1.5.5.7.14	cp, id-cp	3	3	Certificate policies
1.3.6.1.5.5.7.15	cet, id-cet	1	1	Certificate Management over Cryptographic message syntax (CMC) error types
1.3.6.1.5.5.7.16	ri, id-ri	4	4	Revocation information types
1.3.6.1.5.5.7.17	id-sct, id-stc	7	7	Server-based Certificate Validation Protocol (SCVP) check type
1.3.6.1.5.5.7.18	id-swb	20	20	Server-based Certificate Validation Protocol (SCVP) want back types
1.3.6.1.5.5.7.19	id-svp	4	21	Server-based Certificate Validation Protocol (SCVP) validation policies
1.3.6.1.5.5.7.20	id-logo	3	3	Other logotype identifiers
1.3.6.1.5.5.7.22	id-mr	1	1	Matching rules
1.3.6.1.5.5.7.23	id-skis	3	3	Subject key identifier semantics
1.3.6.1.5.5.7.24	id-scep	1	1
1.3.6.1.5.5.7.25	25	3	3
1.3.6.1.5.5.7.48	ad, id-ad, id-pkix-ocsp	15	25	Access descriptors