---
oid: "1.2.840.113549.1.7.0"
description: "ASN.1 module named `PKCS7`"
last-modified: "2017-06-21"
parent-oid: "1.2.840.113549.1.7"
---

## OID: `1.2.840.113549.1.7.0`

```asn1
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-7(7) module(0)}
```

Other identifiers that can be used in the last arc of the ASN.1 notation: `modules`

### Description

ASN.1 module named `PKCS7`

**Classification:** ASN.1 module

### Supplementary information

The ASN.1 code in version 1.5 of the PKCS#7 document is not defined in an ASN.1 module. This prevents an IMPORTS of it 
into other ASN.1 modules. Annex O of Recommendation [ITU-T X.420](http://itu.int/rec/T-REC-X.420) contains a module of PKCS#7 ASN.1 definitions conforming to current ASN.1 standards rather than the obsolescent (and now deprecated) 1988/90 version of ASN.1 used in version 1.5 of PKCS#7. Extensions to PKCS#7 defined in IETF RFC 2630 are underlined. If differences are found between the ASN.1 in the following module and that in PKCS#7, the latter is definitive. 
 
This module is available in the [ITU-T ASN.1 module database](http://itu.int/ITU-T/recommendations/fl.aspx?oid=1.0.840.113549.1.7.0). 
 
Note: Identifier `modules` (plural) is used in IETF [RFC 7292](https://www.rfc-editor.org/rfc/rfc7292.txt) where OID [`{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-7(7) modules(0) pkcs-7(1)}`](https://oid-base.com/get-md/1.2.840.113549.1.7.0.1) also identifies an ASN.1 module named "`PKCS7`".

### Child OIDs

- `1.2.840.113549.1.7.0.1`: `pkcs-7(1)`

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