---
oid: "2.5.44.2.1"
description: "\"aes-ecb128\" algorithm (Advanced Encryption Standard - Cipher Block Chaining (AES-CBC) 128)"
last-modified: "2023-11-16"
parent-oid: "2.5.44.2"
---

## OID: `2.5.44.2.1`

```asn1
{joint-iso-itu-t(2) ds(5) algo(44) ska(2) ecb128(1)}
```

### Description

"aes-ecb128" algorithm (Advanced Encryption Standard - Cipher Block Chaining (AES-CBC) 128)

### Supplementary information

Defined in Amendment 1 to Rec. ITU-T X.510 (2020) \| ISO/IEC 9594-11:2020.

### Child OIDs

- `2.5.44.2.1.2`: `cam(2)`
- `2.5.44.2.1.3`: `seed(3)`
- `2.5.44.2.1.4`: `sm4(4)`

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