---
oid: "1.2.840.113549.1.9.16.0.49"
asn1-notation: "{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) modules(0) id-mod-MD5-XOR-EXPERIMENT(49)}"
description: "ASN.1 module named `MD5-HASH-EXPERIMENT`"
classification: "ASN.1 module"
last-modified: "2025-01-20"
---

## OID : `1.2.840.113549.1.9.16.0.49`

```asn1
{iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs-9(9) smime(16) modules(0) id-mod-MD5-XOR-EXPERIMENT(49)}
```

### Description

ASN.1 module named `MD5-HASH-EXPERIMENT`

**Classification**: ASN.1 module

### Supplementary information

This module is defined in IETF [RFC 6210](https://www.rfc-editor.org/rfc/rfc6210.html) with [Errata 3866](https://www.rfc-editor.org/errata_search.php?eid=3866) applied.
This OID was identifying the [ASN.1 module named `AttributeCertificateVersion1-2009`](https://oid-base.com/get/1.3.6.1.5.5.7.0.49?see=md) in IETF [RFC 5912](https://tools.ietf.org/html/rfc6210) but this has been mended in [RFC Errata 2649](https://www.rfc-editor.org/errata/eid2649) (where the IETF made another mistake because OID `{iso(1) member-body(2) dod(6)}` is illegal and should have been [`{iso(1) identified-organization(3) dod(6)}`](https://oid-base.com/get/1.3.6?see=md)!).

### Child OIDs

No child OID

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