Reference record for OID 1.2.840.113549.1.9.5

Parent

1.2.840.113549.1.9 (pkcs-9, id-pkcs-9, pkcs9)

Node code

Node names

signing-time
id-signingTime
pkcs-9-at-signingTime
aa-signingTime
signingTime

Numeric OID

1.2.840.113549.1.9.5

URN notation

urn:oid:1.2.840.113549.1.9.5

ASN.1 notation

{1 2 840 113549 1 9 5}

{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) signing-time(5)}
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) id-signingTime(5)}
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) pkcs-9-at-signingTime(5)}
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) aa-signingTime(5)}
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) signingTime(5)}
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) id-pkcs-9(9) signing-time(5)}
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) id-pkcs-9(9) id-signingTime(5)}
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) id-pkcs-9(9) pkcs-9-at-signingTime(5)}
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) id-pkcs-9(9) aa-signingTime(5)}
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) id-pkcs-9(9) signingTime(5)}
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) signing-time(5)}
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) id-signingTime(5)}
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) pkcs-9-at-signingTime(5)}
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) aa-signingTime(5)}
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9) signingTime(5)}
{iso(1) member-body(2) us(840) rsadsi(113549) id-pkcs(1) pkcs-9(9) signing-time(5)}
Additional combinations skipped.

OID-IRI notation

/1/2/840/113549/1/9/5
/ISO/Member-Body/US/113549/1/9/5
/ISO/Member-Body/840/113549/1/9/5
/ISO/2/840/113549/1/9/5

Named path variants

/iso/member-body/us/rsadsi/pkcs/pkcs-9/signing-time
/iso/member-body/us/rsadsi/pkcs/pkcs-9/id-signingTime
/iso/member-body/us/rsadsi/pkcs/pkcs-9/pkcs-9-at-signingTime
/iso/member-body/us/rsadsi/pkcs/pkcs-9/aa-signingTime
/iso/member-body/us/rsadsi/pkcs/pkcs-9/signingTime
/iso/member-body/us/rsadsi/pkcs/id-pkcs-9/signing-time
/iso/member-body/us/rsadsi/pkcs/id-pkcs-9/id-signingTime
/iso/member-body/us/rsadsi/pkcs/id-pkcs-9/pkcs-9-at-signingTime
/iso/member-body/us/rsadsi/pkcs/id-pkcs-9/aa-signingTime
/iso/member-body/us/rsadsi/pkcs/id-pkcs-9/signingTime
/iso/member-body/us/rsadsi/pkcs/pkcs9/signing-time
/iso/member-body/us/rsadsi/pkcs/pkcs9/id-signingTime
/iso/member-body/us/rsadsi/pkcs/pkcs9/pkcs-9-at-signingTime
/iso/member-body/us/rsadsi/pkcs/pkcs9/aa-signingTime
/iso/member-body/us/rsadsi/pkcs/pkcs9/signingTime
/iso/member-body/us/rsadsi/id-pkcs/pkcs-9/signing-time
Additional combinations skipped.

Descriptions

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

Primary description: OID Repository

Signing Time
View at oid-base.com

See IETF RFC 3369

signingTime — RFC Editor

PKCS #7 signing time

Source records

aa-signingTime

Status in source: unspecified.

Names: aa-signingTime

Technical details

{
  "smi_kind": "ASN.1 information object",
  "definition": [
    "aa-signingTime",
    "ATTRIBUTE",
    "::=",
    "{",
    "TYPE",
    "SigningTime",
    "IDENTIFIED",
    "BY",
    "id-signingTime",
    "}"
  ]
}

RFC Editor · RFC 5911 · RFC errata · Publisher's source file: New ASN.1 Modules for Cryptographic Message Syntax (CMS) and S/MIME

Module: CryptographicMessageSyntax-2009

Published definition

aa-signingTime ATTRIBUTE ::=
      { TYPE SigningTime IDENTIFIED BY id-signingTime }

Module imports

{'PKIX1Explicit-2009': ['Certificate', 'CertificateList', 'CertificateSerialNumber', 'Name', 'ATTRIBUTE'], 'AlgorithmInformation-2009': ['ParamOptions', 'DIGEST-ALGORITHM', 'SIGNATURE-ALGORITHM', 'PUBLIC-KEY', 'KEY-DERIVATION', 'KEY-WRAP', 'MAC-ALGORITHM', 'KEY-AGREE', 'KEY-TRANSPORT', 'CONTENT-ENCRYPTION', 'ALGORITHM', 'AlgorithmIdentifier'], 'PKIXAttributeCertificate-2009': ['AttributeCertificate'], 'AttributeCertificateVersion1-2009': ['AttributeCertificateV1'], 'CryptographicMessageSyntaxAlgorithms-2009': ['SignatureAlgs', 'MessageDigestAlgs', 'KeyAgreementAlgs', 'MessageAuthAlgs', 'KeyWrapAlgs', 'ContentEncryptionAlgs', 'KeyTransportAlgs', 'KeyDerivationAlgs', 'KeyAgreePublicKeys']}

Source data warning: The AttributeCertificateVersion1-2009 import uses the wrong arc; use IANA-confirmed 1.3.6.1.5.5.7.0.49, as clarified by erratum 2665. Original IMPORTS remains in the downloaded file.

ASN.1 class source excerpt

ATTRIBUTE ::= CLASS {
      &id             OBJECT IDENTIFIER UNIQUE,
      &Type           OPTIONAL,
      &equality-match MATCHING-RULE OPTIONAL,
      &minCount       INTEGER DEFAULT 1,
      &maxCount       INTEGER OPTIONAL
  } WITH SYNTAX {
      [TYPE &Type]
      [EQUALITY MATCHING RULE &equality-match]
      [COUNTS [MIN &minCount] [MAX &maxCount]]
      IDENTIFIED BY &id
  }










  -- Specification of MATCHING-RULE information object class
  --

· Download New ASN.1 Modules for Cryptographic Message Syntax (CMS) and S/MIME

Related source files and packages:

RFC TXT — rfc5035.txtFile: rfc/rfc5035.txt; 32,674 bytes
ASN.1 class PKIX-CommonTypes-2009File: rfc/rfc5912.txt; 216,154 bytes
RFC XML — rfc9169.xmlFile: rfc/rfc9169.xml; 31,149 bytes

Show all 5 related files and packages

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: CryptographicMessageSyntax-2009::aa-signingTime.

Source version and references

Downloaded: 2026-10-19T00:22:16.376195+00:00.

ITU official formal descriptions · Publisher's source file: CryptographicMessageSyntax-2010.asn · Official record

Module: CryptographicMessageSyntax-2010

Published definition

aa-signingTime ATTRIBUTE ::=
{ TYPE SigningTime IDENTIFIED BY id-signingTime }

Module imports

{'PKIX1Explicit-2009': ['Certificate', 'CertificateList', 'CertificateSerialNumber', 'Name', 'ATTRIBUTE'], 'CMSProfileAttributes': ['CMSProfileAttributes'], 'TokenizationManifest': ['tokenizedParts'], 'AlgorithmInformation-2009': ['ParamOptions', 'DIGEST-ALGORITHM', 'SIGNATURE-ALGORITHM', 'PUBLIC-KEY', 'KEY-DERIVATION', 'KEY-WRAP', 'MAC-ALGORITHM', 'KEY-AGREE', 'KEY-TRANSPORT', 'CONTENT-ENCRYPTION', 'ALGORITHM', 'AlgorithmIdentifier'], 'PKIXAttributeCertificate-2009': ['AttributeCertificate'], 'AttributeCertificateVersion1-2009': ['AttributeCertificateV1'], 'CryptographicMessageSyntaxAlgorithms-2009': ['SignatureAlgs', 'MessageDigestAlgs', 'KeyAgreementAlgs', 'MessageAuthAlgs', 'KeyWrapAlgs', 'ContentEncryptionAlgs', 'KeyTransportAlgs', 'KeyDerivationAlgs', 'KeyAgreePublicKeys']}

Source data warning: This published ITU X.894 copy uses 1.2.840.113549.1.9.16.0.49 for AttributeCertificateVersion1-2009. IANA assigns that S/MIME value to MD5-XOR-EXPERIMENT and confirms 1.3.6.1.5.5.7.0.49 for the PKIX module. Only the module identifier is corrected; ASN.1 tags and other definitions are unchanged.

ASN.1 class source excerpt

ATTRIBUTE ::= CLASS {
&id				OBJECT IDENTIFIER UNIQUE,
&Type			OPTIONAL,
&equality-match	MATCHING-RULE OPTIONAL,
&minCount		INTEGER DEFAULT 1,
&maxCount		INTEGER OPTIONAL
} WITH SYNTAX {
[TYPE &Type]
[EQUALITY MATCHING RULE &equality-match]
[COUNTS [MIN &minCount] [MAX &maxCount]]
IDENTIFIED BY &id
}
-- Specification of MATCHING-RULE information object class
--

· Download CryptographicMessageSyntax-2010.asn

Related source files and packages:

ASN.1 class PKIX-CommonTypes-2009File: wftp3/Public/t/fl/itu-t/x/x894/2018-cor1/PKIX-CommonTypes-2009.asn; 4,785 bytes

Source location: CryptographicMessageSyntax-2010::aa-signingTime.

Source version and references

Published package: ITU-T X.894 2018-cor1; file: CryptographicMessageSyntax-2010.asn.

Downloaded: 2026-10-19T21:41:02.134765+00:00.

pkcs-9-at-signingTime

Status in source: unspecified.

Names: pkcs-9-at-signingTime

Technical details

{
  "smi_kind": "OBJECT IDENTIFIER",
  "definition": [
    "pkcs-9-at-signingTime",
    "OBJECT",
    "IDENTIFIER",
    "::=",
    "{",
    "pkcs-9",
    "5",
    "}"
  ]
}

RFC Editor · RFC 2985 · RFC errata · Publisher's source file: PKCS #9: Selected Object Classes and Attribute Types Version 2.0
Module: PKCS-9
Published definition
```
pkcs-9-at-signingTime         OBJECT IDENTIFIER ::= {pkcs-9 5}
```
Module imports
```
{'PKCS-8': ['EncryptedPrivateKeyInfo'], 'PKCS-12': ['PFX'], 'PKCS-15': ['PKCS15Token'], 'UpperBounds': ['ub-name'], 'UsefulDefinitions': ['informationFramework', 'authenticationFramework', 'selectedAttributeTypes', 'upperBounds', 'id-at'], 'InformationFramework': ['upperBounds', 'OBJECT-CLASS', 'ATTRIBUTE', 'MATCHING-RULE', 'Attribute', 'top', 'objectIdentifierMatch'], 'SelectedAttributeTypes': ['authenticationFramework', 'DirectoryString', 'octetStringMatch', 'caseIgnoreMatch', 'caseExactMatch', 'generalizedTimeMatch', 'integerMatch', 'serialNumber'], 'AuthenticationFramework': ['informationFramework', 'ALGORITHM', 'Extensions', 'Time'], 'CryptographicMessageSyntax': ['selectedAttributeTypes', 'ContentInfo', 'SignerInfo']}
```
· Download PKCS #9: Selected Object Classes and Attribute Types Version 2.0
Related source files and packages:
- RFC TXT — rfc5912.txtFile: rfc/rfc5912.txt; 216,154 bytes
- RFC XML — rfc9480.xmlFile: rfc/rfc9480.xml; 214,691 bytes
- RFC Editor — verified errata original JSON11.2 MiB
Show all 7 related files and packages
- ITU X.501 — UsefulDefinitions, imported id-at prefixFile: wftp3/Public/t/fl/itu-t/x/x501/1997-TC1/UsefulDefinitions.asn; 6,109 bytes
- ITU X.501 — UsefulDefinitions, imported id-at prefixFile: wftp3/Public/t/fl/itu-t/x/x501/1997-TC2/UsefulDefinitions.asn; 6,105 bytes
- ASN.1 class InformationFrameworkFile: wftp3/Public/t/fl/itu-t/x/x501/1997-TC2/InformationFramework.asn; 27,974 bytes
- RFC5280 — checked primary numeric parent namespaceFile: rfc/rfc5280.txt; 352,580 bytes
Source location: PKCS-9::pkcs-9-at-signingTime.
Source version and references

Downloaded: 2026-10-19T00:19:19.942038+00:00.

signingTime

Status in source: unspecified.

Names: signingTime

Technical details

{
  "smi_kind": "ASN.1 information object",
  "definition": [
    "signingTime",
    "ATTRIBUTE",
    "::=",
    "{",
    "WITH",
    "SYNTAX",
    "SigningTime",
    "EQUALITY",
    "MATCHING",
    "RULE",
    "signingTimeMatch",
    "SINGLE",
    "VALUE",
    "TRUE",
    "ID",
    "pkcs-9-at-signingTime",
    "}"
  ]
}

RFC Editor · RFC 2985 · RFC errata · Publisher's source file: PKCS #9: Selected Object Classes and Attribute Types Version 2.0

Module: PKCS-9

Published definition

signingTime ATTRIBUTE ::= {
           WITH SYNTAX SigningTime
           EQUALITY MATCHING RULE signingTimeMatch
           SINGLE VALUE TRUE
           ID pkcs-9-at-signingTime
   }

Module imports

{'PKCS-8': ['EncryptedPrivateKeyInfo'], 'PKCS-12': ['PFX'], 'PKCS-15': ['PKCS15Token'], 'UpperBounds': ['ub-name'], 'UsefulDefinitions': ['informationFramework', 'authenticationFramework', 'selectedAttributeTypes', 'upperBounds', 'id-at'], 'InformationFramework': ['OBJECT-CLASS', 'ATTRIBUTE', 'MATCHING-RULE', 'Attribute', 'top', 'objectIdentifierMatch'], 'SelectedAttributeTypes': ['DirectoryString', 'octetStringMatch', 'caseIgnoreMatch', 'caseExactMatch', 'generalizedTimeMatch', 'integerMatch', 'serialNumber'], 'AuthenticationFramework': ['ALGORITHM', 'Extensions', 'Time'], 'CryptographicMessageSyntax': ['ContentInfo', 'SignerInfo']}

ASN.1 class source excerpt

ATTRIBUTE ::= CLASS {
  &derivation            ATTRIBUTE OPTIONAL,
  &Type                  OPTIONAL, -- either &Type or &derivation required 
  &equality-match        MATCHING-RULE OPTIONAL,
  &ordering-match        MATCHING-RULE OPTIONAL,
  &substrings-match      MATCHING-RULE OPTIONAL,
  &single-valued         BOOLEAN DEFAULT FALSE,
  &collective            BOOLEAN DEFAULT FALSE,
  -- operational extensions 
  &no-user-modification  BOOLEAN DEFAULT FALSE,
  &usage                 AttributeUsage DEFAULT userApplications,
  &id                    OBJECT IDENTIFIER UNIQUE
}
WITH SYNTAX {
  [SUBTYPE OF &derivation]
  [WITH SYNTAX &Type]
  [EQUALITY MATCHING RULE &equality-match]
  [ORDERING MATCHING RULE &ordering-match]
  [SUBSTRINGS MATCHING RULE &substrings-match]
  [SINGLE VALUE &single-valued]
  [COLLECTIVE &collective]
  [NO USER MODIFICATION &no-user-modification]
  [USAGE &usage]
  ID &id
}

Related ASN.1 types

SigningTime ::= Time -- imported from ISO/IEC 9594-8

· Download PKCS #9: Selected Object Classes and Attribute Types Version 2.0

Related source files and packages:

RFC TXT — rfc5912.txtFile: rfc/rfc5912.txt; 216,154 bytes
RFC XML — rfc9480.xmlFile: rfc/rfc9480.xml; 214,691 bytes
RFC Editor — verified errata original JSON11.2 MiB

Show all 7 related files and packages

ITU X.501 — UsefulDefinitions, imported id-at prefixFile: wftp3/Public/t/fl/itu-t/x/x501/1997-TC1/UsefulDefinitions.asn; 6,109 bytes
ITU X.501 — UsefulDefinitions, imported id-at prefixFile: wftp3/Public/t/fl/itu-t/x/x501/1997-TC2/UsefulDefinitions.asn; 6,105 bytes
ASN.1 class InformationFrameworkFile: wftp3/Public/t/fl/itu-t/x/x501/1997-TC2/InformationFramework.asn; 27,974 bytes
RFC5280 — checked primary numeric parent namespaceFile: rfc/rfc5280.txt; 352,580 bytes

Source location: PKCS-9::signingTime.

Source version and references

Downloaded: 2026-10-19T00:19:19.942038+00:00.

signingTime

Status in source: unspecified.

Names: signingTime

Technical details

{
  "smi_kind": "OBJECT IDENTIFIER",
  "definition": [
    "signingTime",
    "OBJECT",
    "IDENTIFIER",
    "::=",
    "{",
    "iso",
    "(",
    "1",
    ")",
    "member-body",
    "(",
    "2",
    ")",
    "us",
    "(",
    "840",
    ")",
    "rsadsi",
    "(",
    "113549",
    ")",
    "pkcs",
    "(",
    "1",
    ")",
    "pkcs-9",
    "(",
    "9",
    ")",
    "5",
    "}"
  ]
}

RFC Editor · RFC 2311 · RFC errata · Publisher's source file: S/MIME Version 2 Message Specification · Official record
Published definition
```
signingTime OBJECT IDENTIFIER ::=
     {iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) 5}
```
RFC 2311 use documented in March 1998

Signed Attributes · Section A.5: Signed Attributes

· Download S/MIME Version 2 Message Specification
Source location: RFC2311 appendix A.5::signingTime.
Source version and references

Downloaded: 2026-10-19T00:18:39.808581+00:00.

signingTime

Status in source: unspecified.

Names: signingTime

Technical details

{
  "ldap_definition": "( 1.2.840.113549.1.9.5 NAME 'signingTime' DESC 'PKCS #7 signing time' EQUALITY signingTimeMatch SYNTAX 1.2.840.113549.1.9.26.2 SINGLE-VALUE )"
}

RFC Editor · RFC 2985 · RFC errata · Publisher's source file: PKCS #9: Selected Object Classes and Attribute Types Version 2.0 · Official record
Published LDAP definition
```
( 1.2.840.113549.1.9.5 NAME 'signingTime' DESC 'PKCS #7 signing time' EQUALITY signingTimeMatch SYNTAX 1.2.840.113549.1.9.26.2 SINGLE-VALUE )
```
Published LDAP schemas
```
(
           1.2.840.113549.1.9.5
           NAME 'signingTime'
           DESC 'PKCS #7 signing time'
           EQUALITY signingTimeMatch
           SYNTAX 1.2.840.113549.1.9.26.2
           SINGLE-VALUE
   )
```
RFC 2985 use documented in November 2000

BNF schema summary This appendix provides augmented BNF [2] · Section B: BNF schema summary This appendix provides augmented BNF [2]

· Download PKCS #9: Selected Object Classes and Attribute Types Version 2.0
Related source files and packages:
- RFC TXT — rfc5912.txtFile: rfc/rfc5912.txt; 216,154 bytes
- RFC XML — rfc9480.xmlFile: rfc/rfc9480.xml; 214,691 bytes
- RFC Editor — verified errata original JSON11.2 MiB
Show all 7 related files and packages
- ITU X.501 — UsefulDefinitions, imported id-at prefixFile: wftp3/Public/t/fl/itu-t/x/x501/1997-TC1/UsefulDefinitions.asn; 6,109 bytes
- ITU X.501 — UsefulDefinitions, imported id-at prefixFile: wftp3/Public/t/fl/itu-t/x/x501/1997-TC2/UsefulDefinitions.asn; 6,105 bytes
- ASN.1 class InformationFrameworkFile: wftp3/Public/t/fl/itu-t/x/x501/1997-TC2/InformationFramework.asn; 27,974 bytes
- RFC5280 — checked primary numeric parent namespaceFile: rfc/rfc5280.txt; 352,580 bytes
Source location: RFC2985 LDAP B::1.2.840.113549.1.9.5 signingTime.
Source version and references

Downloaded: 2026-10-19T00:19:19.942038+00:00.

id-signingTime

Status in source: unspecified.

Names: id-signingTime

Technical details

{
  "smi_kind": "OBJECT IDENTIFIER",
  "definition": [
    "id-signingTime",
    "OBJECT",
    "IDENTIFIER",
    "::=",
    "{",
    "iso",
    "(",
    "1",
    ")",
    "member-body",
    "(",
    "2",
    ")",
    "us",
    "(",
    "840",
    ")",
    "rsadsi",
    "(",
    "113549",
    ")",
    "pkcs",
    "(",
    "1",
    ")",
    "pkcs9",
    "(",
    "9",
    ")",
    "5",
    "}"
  ]
}

RFC Editor · RFC 2630 · RFC errata · Publisher's source file: Cryptographic Message Syntax
Module: CryptographicMessageSyntax
Published definition
```
id-signingTime OBJECT IDENTIFIER ::= { iso(1) member-body(2)
    us(840) rsadsi(113549) pkcs(1) pkcs9(9) 5 }
```
Module imports
```
{'InformationFramework': ['Name'], 'AuthenticationFramework': ['AlgorithmIdentifier', 'AttributeCertificate', 'Certificate', 'CertificateList', 'CertificateSerialNumber']}
```
· Download Cryptographic Message Syntax
Related source files and packages:
- RFC TXT — rfc5911.txtFile: rfc/rfc5911.txt; 101,576 bytes
- RFC TXT — rfc5912.txtFile: rfc/rfc5912.txt; 216,154 bytes
Source location: CryptographicMessageSyntax::id-signingTime.
Source version and references

Downloaded: 2026-10-19T00:18:57.316701+00:00.
RFC Editor · RFC 3369 · RFC errata · Publisher's source file: Cryptographic Message Syntax (CMS)
Module: CryptographicMessageSyntax
Published definition
```
id-signingTime OBJECT IDENTIFIER ::= { iso(1) member-body(2)
       us(840) rsadsi(113549) pkcs(1) pkcs9(9) 5 }
```
Module imports
```
{'PKIX1Explicit88': ['AlgorithmIdentifier', 'Certificate', 'CertificateList', 'CertificateSerialNumber', 'Name'], 'PKIXAttributeCertificate': ['AttributeCertificate'], 'AttributeCertificateVersion1': ['AttributeCertificateV1']}
```
· Download Cryptographic Message Syntax (CMS)
Related source files and packages:
- RFC TXT — rfc5911.txtFile: rfc/rfc5911.txt; 101,576 bytes
Source location: CryptographicMessageSyntax::id-signingTime.
Source version and references

Downloaded: 2026-10-19T00:19:43.749080+00:00.
RFC Editor · RFC 3852 · RFC errata · Publisher's source file: Cryptographic Message Syntax (CMS)
Module: CryptographicMessageSyntax2004
Published definition
```
id-signingTime OBJECT IDENTIFIER ::= { iso(1) member-body(2)
       us(840) rsadsi(113549) pkcs(1) pkcs9(9) 5 }
```
Module imports
```
{'PKIX1Explicit88': ['AlgorithmIdentifier', 'Certificate', 'CertificateList', 'CertificateSerialNumber', 'Name'], 'PKIXAttributeCertificate': ['AttributeCertificate'], 'AttributeCertificateVersion1': ['AttributeCertificateV1']}
```
· Download Cryptographic Message Syntax (CMS)
Related source files and packages:
- RFC TXT — rfc5911.txtFile: rfc/rfc5911.txt; 101,576 bytes
Source location: CryptographicMessageSyntax2004::id-signingTime.
Source version and references

Downloaded: 2026-10-19T00:20:12.774800+00:00.
RFC Editor · RFC 5652 · RFC errata · Publisher's source file: Cryptographic Message Syntax (CMS)
Module: CryptographicMessageSyntax2004
Published definition
```
id-signingTime OBJECT IDENTIFIER ::= { iso(1) member-body(2)
       us(840) rsadsi(113549) pkcs(1) pkcs9(9) 5 }
```
Module imports
```
{'PKIX1Explicit88': ['AlgorithmIdentifier', 'Certificate', 'CertificateList', 'CertificateSerialNumber', 'Name'], 'PKIXAttributeCertificate': ['AttributeCertificate'], 'AttributeCertificateVersion1': ['AttributeCertificateV1']}
```
· Download Cryptographic Message Syntax (CMS)
Related source files and packages:
- RFC TXT — rfc5911.txtFile: rfc/rfc5911.txt; 101,576 bytes
Source location: CryptographicMessageSyntax2004::id-signingTime.
Source version and references

Downloaded: 2026-10-19T00:21:59.873838+00:00.
RFC Editor · RFC 5911 · RFC errata · Publisher's source file: New ASN.1 Modules for Cryptographic Message Syntax (CMS) and S/MIME
Module: CryptographicMessageSyntax-2009
Published definition
```
id-signingTime OBJECT IDENTIFIER ::= { iso(1) member-body(2)
     us(840) rsadsi(113549) pkcs(1) pkcs9(9) 5 }
```
Module imports
```
{'PKIX1Explicit-2009': ['Certificate', 'CertificateList', 'CertificateSerialNumber', 'Name', 'ATTRIBUTE'], 'AlgorithmInformation-2009': ['ParamOptions', 'DIGEST-ALGORITHM', 'SIGNATURE-ALGORITHM', 'PUBLIC-KEY', 'KEY-DERIVATION', 'KEY-WRAP', 'MAC-ALGORITHM', 'KEY-AGREE', 'KEY-TRANSPORT', 'CONTENT-ENCRYPTION', 'ALGORITHM', 'AlgorithmIdentifier'], 'PKIXAttributeCertificate-2009': ['AttributeCertificate'], 'AttributeCertificateVersion1-2009': ['AttributeCertificateV1'], 'CryptographicMessageSyntaxAlgorithms-2009': ['SignatureAlgs', 'MessageDigestAlgs', 'KeyAgreementAlgs', 'MessageAuthAlgs', 'KeyWrapAlgs', 'ContentEncryptionAlgs', 'KeyTransportAlgs', 'KeyDerivationAlgs', 'KeyAgreePublicKeys']}
```
Source data warning: The AttributeCertificateVersion1-2009 import uses the wrong arc; use IANA-confirmed 1.3.6.1.5.5.7.0.49, as clarified by erratum 2665. Original IMPORTS remains in the downloaded file.
· Download New ASN.1 Modules for Cryptographic Message Syntax (CMS) and S/MIME
Related source files and packages:
- RFC TXT — rfc5035.txtFile: rfc/rfc5035.txt; 32,674 bytes
- ASN.1 class PKIX-CommonTypes-2009File: rfc/rfc5912.txt; 216,154 bytes
- RFC XML — rfc9169.xmlFile: rfc/rfc9169.xml; 31,149 bytes
Show all 5 related files and packages
- 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: CryptographicMessageSyntax-2009::id-signingTime.
Source version and references

Downloaded: 2026-10-19T00:22:16.376195+00:00.
RFC Editor · RFC 6268 · RFC errata · Publisher's source file: Additional New ASN.1 Modules for the Cryptographic Message Syntax (CMS) and the Public Key Infrastructure Using X.509 (PKIX)
Module: CryptographicMessageSyntax-2010
Published definition
```
id-signingTime OBJECT IDENTIFIER ::= { iso(1) member-body(2)
     us(840) rsadsi(113549) pkcs(1) pkcs9(9) 5 }
```
Module imports
```
{'PKIX1Explicit-2009': ['Certificate', 'CertificateList', 'CertificateSerialNumber', 'Name', 'ATTRIBUTE'], 'PKIXAttributeCertificate-2009': ['AttributeCertificate'], 'AttributeCertificateVersion1-2009': ['AttributeCertificateV1'], 'CryptographicMessageSyntaxAlgorithms-2009': ['SignatureAlgs', 'MessageDigestAlgs', 'KeyAgreementAlgs', 'MessageAuthAlgs', 'KeyWrapAlgs', 'ContentEncryptionAlgs', 'KeyTransportAlgs', 'KeyDerivationAlgs', 'KeyAgreePublicKeys']}
```
· Download Additional New ASN.1 Modules for the Cryptographic Message Syntax (CMS) and the Public Key Infrastructure Using X.509 (PKIX)
Related source files and packages:
- RFC TXT — rfc2898.txtFile: rfc/rfc2898.txt; 68,692 bytes
- RFC TXT — rfc5911.txtFile: rfc/rfc5911.txt; 101,576 bytes
- RFC TXT — rfc7292.txtFile: rfc/rfc7292.txt; 58,991 bytes
Show all 8 related files and packages
- RFC TXT — rfc8018.txtFile: rfc/rfc8018.txt; 80,887 bytes
- RFC XML — rfc9579.xmlFile: rfc/rfc9579.xml; 67,148 bytes
- RFC XML — rfc9879.xmlFile: rfc/rfc9879.xml; 71,463 bytes
- RFC XML — rfc10002.xmlFile: rfc/rfc10002.xml; 387,783 bytes
- RFC 5912 — numeric namespace used by the typed supplementFile: rfc/rfc5912.txt; 216,154 bytes
Source location: CryptographicMessageSyntax-2010::id-signingTime.
Source version and references

Downloaded: 2026-10-19T00:22:44.054495+00:00.
ITU official formal descriptions · Publisher's source file: CryptographicMessageSyntax-2010.asn · Official record
Module: CryptographicMessageSyntax-2010
Published definition
```
id-signingTime OBJECT IDENTIFIER ::= { iso(1) member-body(2)
us(840) rsadsi(113549) pkcs(1) pkcs9(9) 5 }
```
Module imports
```
{'PKIX1Explicit-2009': ['Certificate', 'CertificateList', 'CertificateSerialNumber', 'Name', 'ATTRIBUTE'], 'CMSProfileAttributes': ['CMSProfileAttributes'], 'TokenizationManifest': ['tokenizedParts'], 'AlgorithmInformation-2009': ['ParamOptions', 'DIGEST-ALGORITHM', 'SIGNATURE-ALGORITHM', 'PUBLIC-KEY', 'KEY-DERIVATION', 'KEY-WRAP', 'MAC-ALGORITHM', 'KEY-AGREE', 'KEY-TRANSPORT', 'CONTENT-ENCRYPTION', 'ALGORITHM', 'AlgorithmIdentifier'], 'PKIXAttributeCertificate-2009': ['AttributeCertificate'], 'AttributeCertificateVersion1-2009': ['AttributeCertificateV1'], 'CryptographicMessageSyntaxAlgorithms-2009': ['SignatureAlgs', 'MessageDigestAlgs', 'KeyAgreementAlgs', 'MessageAuthAlgs', 'KeyWrapAlgs', 'ContentEncryptionAlgs', 'KeyTransportAlgs', 'KeyDerivationAlgs', 'KeyAgreePublicKeys']}
```
Source data warning: This published ITU X.894 copy uses 1.2.840.113549.1.9.16.0.49 for AttributeCertificateVersion1-2009. IANA assigns that S/MIME value to MD5-XOR-EXPERIMENT and confirms 1.3.6.1.5.5.7.0.49 for the PKIX module. Only the module identifier is corrected; ASN.1 tags and other definitions are unchanged.
· Download CryptographicMessageSyntax-2010.asn
Related source files and packages:
- ASN.1 class PKIX-CommonTypes-2009File: wftp3/Public/t/fl/itu-t/x/x894/2018-cor1/PKIX-CommonTypes-2009.asn; 4,785 bytes
Source location: CryptographicMessageSyntax-2010::id-signingTime.
Source version and references

Published package: ITU-T X.894 2018-cor1; file: CryptographicMessageSyntax-2010.asn.

Downloaded: 2026-10-19T21:41:02.134765+00:00.
RFC Editor · RFC 6488 · RFC errata · Publisher's source file: Signed Object Template for the Resource Public Key Infrastructure (RPKI) · Official record
Published definition
```
id-signingTime OBJECT IDENTIFIER ::= { iso(1) member-body(2)
             us(840) rsadsi(113549) pkcs(1) pkcs9(9) 5 }
```
RFC 6488 use documented in February 2012

Signing-Time Attribute · Section 2.1.6.4.3: Signing-Time Attribute

The signing-time attribute MAY be present. Note that the presence or absence of the signing-time attribute MUST NOT affect the validity of the signed object (as specified in Section 3). The attrType OID for the signing-time attribute is 1.2.840.113549.1.9.5.

· Download Signed Object Template for the Resource Public Key Infrastructure (RPKI)
Related source files and packages:
- RFC 2630 — independent name and numeric OID corroborationFile: rfc/rfc2630.txt; 128,599 bytes
- RFC 4049 — independent name and numeric OID corroborationFile: rfc/rfc4049.txt; 12,302 bytes
Source location: RFC6488 section 2.1.6.4.3::id-signingTime.
Source version and references

Downloaded: 2026-10-19T00:23:01.486470+00:00.
RFC Editor · RFC 6492 · RFC errata · Publisher's source file: A Protocol for Provisioning Resource Certificates · Official record
Published definition
```
id-signingTime OBJECT IDENTIFIER ::= { iso(1) member-body(2)
          us(840) rsadsi(113549) pkcs(1) pkcs9(9) 5 }
```
Related ASN.1 definitions
```
id-signingTime OBJECT IDENTIFIER ::= { iso(1) member-body(2)
          us(840) rsadsi(113549) pkcs(1) pkcs9(9) 5 }
```
```
id-signingTime OBJECT IDENTIFIER ::= { iso(1) member-body(2)
          us(840) rsadsi(113549) pkcs(1) pkcs9(9) 5 }
```
RFC 6492 use documented in February 2012

Signing-Time Attribute · Section 3.1.1.6.4.3:

ASN.1 Specification of the CMS Signed Object · Section 3.1.3:
Related ASN.1 types
```
Time ::= CHOICE {
        utcTime UTCTime,
        generalizedTime GeneralizedTime }
```
```
SigningTime ::= Time
```
· Download A Protocol for Provisioning Resource Certificates
Related source files and packages:
- RFC Editor — reviewed parameter corrections and held proposals11.2 MiB
Source location: RFC6492 3.1.1.6.4.3::id-signingTime.
Source version and references

Downloaded: 2026-10-19T00:23:01.847232+00:00.

Current Registration Authority (inferred from ancestor 1.2.840.113549.1.9)

RSA Security Data Inc.

Siblings (26)

OID	Name	Direct children	Descendants	Description
1.2.840.113549.1.9.0	modules, pkcs-9-mo	1	1	ASN.1 modules
1.2.840.113549.1.9.1	emailAddress, email, pkcs-9-at-emailAddress, pkcs9email, at-emailAddress, id-emailAddress, e-mailAddress	0	0	PKCS #9 Email Address attribute for use in signatures
1.2.840.113549.1.9.2	unstructuredName, pkcs-9-at-unstructuredName	0	0	PKCS#9 unstructuredName
1.2.840.113549.1.9.3	contentType, id-contentType, pkcs-9-at-contentType, aa-contentType	0	0	Content type
1.2.840.113549.1.9.4	messageDigest, id-messageDigest, pkcs-9-at-messageDigest, aa-messageDigest	0	0	Message digest
1.2.840.113549.1.9.6	countersignature, id-countersignature, pkcs-9-at-counterSignature, aa-countersignature, counterSignature	0	0	countersignature attribute
1.2.840.113549.1.9.7	challengePassword, pkcs-9-at-challengePassword	0	0	Challenge Password attribute for use in signatures
1.2.840.113549.1.9.8	unstructuredAddress, pkcs-9-at-unstructuredAddress	0	0	PKCS#9 unstructuredAddress
1.2.840.113549.1.9.9	extendedCertificateAttributes, pkcs-9-at-extendedCertificateAttributes	0	0	PKCS#9 extendedCertificateAttributes
1.2.840.113549.1.9.10	10, pkcs-9-at-issuerAndSerialNumber	0	0	PKCS #9 (1 2 840 113549 1 9) experimental issuerAndSerialNumber
1.2.840.113549.1.9.11	11, pkcs-9-at-passwordCheck	0	0	PKCS #9 (1 2 840 113549 1 9) experimental passwordCheck
1.2.840.113549.1.9.12	12, pkcs-9-at-publicKey	0	0	PKCS #9 (1 2 840 113549 1 9) experimental publicKey
1.2.840.113549.1.9.13	signingDescription, pkcs-9-at-signingDescription	0	0	PKCS #9 experimental Signing Description
1.2.840.113549.1.9.14	extensionRequest, id-ExtensionReq, pkcs-9-at-extensionRequest, at-extension-req	0	0	PKCS#9 experimental extension request
1.2.840.113549.1.9.15	smimeCapabilities, pkcs-9-at-smimeCapabilities, aa-smimeCapabilities	6	6	S/MIME (Multipurpose Internet Mail Extensions) capabilities
1.2.840.113549.1.9.16	smime, id-smime	16	337	S/MIME
1.2.840.113549.1.9.17	pgpKeyID	0	0	Key ID of an OpenPGP Key (e.g., 0x12345678)
1.2.840.113549.1.9.20	friendlyName, pkcs-9-at-friendlyName	0	0	PKCS #9 attribute friendlyName (for PKCS #12)
1.2.840.113549.1.9.21	localKeyID, pkcs-9-at-localKeyId, localKeyId	0	0	PKCS #9 localKeyID (for PKCS #12)
1.2.840.113549.1.9.22	certTypes	2	2	PKCS #9 certTypes (for PKCS #12)
1.2.840.113549.1.9.23	crlTypes	1	1	PKCS #9 crlTypes (for PKCS #12)
1.2.840.113549.1.9.24	pkcs-9-oc	2	2
1.2.840.113549.1.9.25	pkcs-9-at	5	5
1.2.840.113549.1.9.26	pkcs-9-sx	2	2
1.2.840.113549.1.9.27	pkcs-9-mr	3	3
1.2.840.113549.1.9.52	id-aa-CMSAlgorithmProtection, id-aa-cmsAlgorithmProtect	0	0	CMS algorithm protection attribute