---
id: object/codeunit/1258
type: object
title: Codeunit 1258 "Rijndael Cryptography"
summary: Codeunit 1258 "Rijndael Cryptography" in System Application (System.Security.Encryption). 21 public procedures. Present since at least BC23, still in BC30, changed in BC24, BC27.
tier: official
language: en
tags:
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  - system application
versions:
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  last_changed: "27"
  deprecated: null
review:
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generated:
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    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/System%20Application/App/Cryptography%20Management/src/RijndaelCryptography.Codeunit.al
    title: src/System Application/App/Cryptography Management/src/RijndaelCryptography.Codeunit.al (releases/29.x)
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object_type: codeunit
object_id: 1258
name: Rijndael Cryptography
namespace: System.Security.Encryption
app: System Application
extends: null
first_version: "23"
last_version: "30"
present_in:
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  - "24"
  - "25"
  - "26"
  - "27"
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  - "29"
  - "30"
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  - "27"
source_major: "29"
obsolete: null
countries: []
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counts:
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  procedures: 21
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---

# Codeunit 1258 "Rijndael Cryptography"

> Codeunit 1258 "Rijndael Cryptography" in System Application (System.Security.Encryption). 21 public procedures. Present since at least BC23, still in BC30, changed in BC24, BC27.

System Application · System.Security.Encryption · BC23-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/System%20Application/App/Cryptography%20Management/src/RijndaelCryptography.Codeunit.al) · facts from BC29

## Properties

| Property | Value |
|---|---|
| Access | Public |

## Procedures

- `InitRijndaelProvider()`: Initializes a new instance of the RijndaelManaged class with default values.
- `InitRijndaelProvider(EncryptionKey: SecretText)`: Initializes a new instance of the RijndaelManaged class providing the encryption key.
- `InitRijndaelProvider(EncryptionKey: SecretText; BlockSize: Integer)`: Initializes a new instance of the RijndaelManaged class providing the encryption key and block size.
- `InitRijndaelProvider(EncryptionKey: SecretText; BlockSize: Integer; CipherMode: Text)`: Initializes a new instance of the RijndaelManaged class providing the encryption key, block size and cipher mode.
- `InitRijndaelProvider(EncryptionKey: SecretText; BlockSize: Integer; CipherMode: Text; PaddingMode: Text)`: Initializes a new instance of the RijndaelManaged class providing the encryption key, block size, cipher mode and padding mode.
- `SetBlockSize(BlockSize: Integer)`: Sets a new block size value for the RijndaelManaged class.
- `SetCipherMode(CipherMode: Text)`: Sets a new cipher mode value for the RijndaelManaged class.
- `SetPaddingMode(PaddingMode: Text)`: Sets a new padding mode value for the RijndaelManaged class.
- `SetEncryptionData(KeyAsBase64: SecretText; VectorAsBase64: Text)`: Sets the key and vector for the RijndaelManaged class.
- `IsValidKeySize(KeySize: Integer): Boolean`: Determines whether the specified key size is valid for the current algorithm.
- `GetLegalKeySizeValues(var MinSize: Integer; var MaxSize: Integer; var SkipSize: Integer)`: Specifies the key sizes, in bits, that are supported by the symmetric algorithm.
- `GetLegalBlockSizeValues(var MinSize: Integer; var MaxSize: Integer; var SkipSize: Integer)`: Specifies the block sizes, in bits, that are supported by the symmetric algorithm.
- `GetEncryptionData(var KeyAsBase64: SecretText; var VectorAsBase64: Text)`: Gets the key and vector from the RijndaelManaged class
- `Encrypt(PlainText: Text): Text`: Returns plain text as an encrypted value.
- `Encrypt(PlainText: SecretText): SecretText`: Returns plain text as an encrypted value.
- `EncryptBinaryData(BinaryDataAsBase64: Text): Text`: Returns encrypted binary data as base64
- `EncryptBinaryData(BinaryDataAsBase64: SecretText): SecretText`: Returns encrypted binary data as base64
- `Decrypt(CryptedText: Text): Text`: Returns encrypted text as plain text.
- `Decrypt(CryptedText: SecretText): SecretText`: Returns encrypted text as plain text.
- `DecryptBinaryData(CryptedBinaryDataAsBase64: Text): Text`: Returns decrypted binary data as base64
- `DecryptBinaryData(CryptedBinaryDataAsBase64: SecretText): SecretText`: Returns decrypted binary data as base64

## Calls

From the extracted call graph of BC29 (graphify-al on the snapshot checkout): calls whose target is known from a declared type or an `Object::"Name"` argument. Interface dispatch and calls through events are not counted, so the list is not complete.

- [Codeunit 1279 "Cryptography Management Impl."](../codeunit/1279.md) (13 calls: `Decrypt → DecryptRijndael`, `DecryptBinaryData → DecryptBinaryDataRijndael`, `Encrypt → EncryptRijndael`, …)

## Across versions

- Present in: BC23-30
- Changed (declaration) in: BC24, BC27

Source: AL metadata extracted from the code (names, ids, signatures, properties); no code bodies (D10).

## Ask your agent

Procedure bodies are not stored here (D10). The call sections above are our own, per object, from the BC29 call graph. For a procedure body or the calls of one procedure, ask bc-code-atlas (external, by Stefan Maron, MIT; default corpus w1-28), which the bc-observatory plugin connects: `bcatlas_resolve_node(object_type: "codeunit", object_name: "Rijndael Cryptography")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.