Decrypt Text

UiPath.Cryptography.Activities.DecryptText

Description

Decrypts a string using a symmetric algorithm and key, or using PGP with a private key. Returns the plaintext string. The encrypted input is Base64-encoded for symmetric algorithms and ASCII-armored for PGP.

Compatibilité du projet

Windows - Héritage | Windows | Multiplate-forme

Windows, configuration multiplate-forme

• Algorithm - A drop-down menu which enables you to select the decryption algorithm you want to use. The following options are available: AES GCM, ChaCha20-Poly1305 (Non-FIPS), PGP - Pretty Good Privacy (Non-FIPS), AES (Deprecated), DES (Deprecated), RC2 (Non-FIPS) (Deprecated), Rijndael (Non-FIPS) (Deprecated), and TripleDES (Deprecated). Select PGP to decrypt with a private key instead of a symmetric key. The algorithm must match the one used to encrypt the input.
• Text - The text that you want to decrypt. This field supports only strings and String variables.
• Key - The key that you want to use to decrypt the specified text. Used by the symmetric algorithms only. This field supports only strings and String variables. To enter the key as a secure string instead of plain text, select the field's input menu and choose Toggle to Secure input - this uses the Key Secure String property (a SecureString).

Options avancées

Options

• Key Encoding - The encoding used to interpret the key specified in the Key property. Used by the symmetric algorithms only. The dropdown lists all text encodings (code pages) available on the machine, with the most common ones shown first: System default, Unicode (UTF-8) (default), Unicode, Unicode (Big-Endian), Unicode (UTF-32), Unicode (UTF-32 Big-Endian), US-ASCII, and Western European (ISO). Additional regional and legacy code pages follow in the list.
• Text Encoding - The encoding used to convert the decrypted bytes back to text. Set this to match the encoding used by the tool that produced the ciphertext. Independent from Key Encoding - both offer the same full list of text encodings and default to Unicode (UTF-8). Used by the symmetric algorithms only.
• Continue On Error - Specifies if the automation should continue even if the activity throws an error. This field only supports Boolean values (True, False). The default value is False. As a result, if the field is blank and an error is thrown, the execution of the project stops. If the value is set to True, the execution of the project continues regardless of any error.

Symmetric wire format and interoperability

These options apply to the symmetric algorithms only. They let you decrypt ciphertext produced by external tools such as openssl enc, Java, and Python. Each option must match what was used at encrypt time.

• Wire Format - The symmetric ciphertext layout to decrypt. Must match the format used at encrypt time. The following options are available:
  • UiPath (Classic) (default) - UiPath's byte-stable layout (salt(8) + IV + ciphertext [+ tag], PBKDF2-HMAC-SHA1 at 10,000 iterations). The IV, when present, is read from the ciphertext stream prefix automatically.
  • UiPath (OWASP 2026) - The Classic layout with a stronger, OWASP-recommended KDF iteration count.
  • Raw (caller-supplied key and IV) - A caller-supplied key, for third-party interoperability. Requires Key Bytes Format to be Hex or Base64.
  • OpenSSL enc (Salted__ + PBKDF2-SHA256) - Decrypts openssl enc-compatible input.
• Key Bytes Format - How the Key string is interpreted. The following options are available: Hex and Base64. Required when Wire Format is Raw (caller-supplied key and IV); otherwise the key is treated as a password.
• KDF Iterations - The PBKDF2 iteration count. Must match the value used at encrypt time, because it is not carried in the wire format. 0 uses the format's OWASP-recommended default. Rejected for UiPath (Classic) and Raw (caller-supplied key and IV).
• AES Key Size - The AES key size, in bits, used to encrypt the input. The following options are available: 128-bit, 192-bit, and 256-bit (default). Applies only when Algorithm is AES and Wire Format is OpenSSL enc (Salted__ + PBKDF2-SHA256). Must match the key size the producer used; it is not stored in the wire format.

PGP

These options apply when Algorithm is PGP.

• Private Key File Path - The path to your PGP private key file. Required when Algorithm is PGP.
• Passphrase - The passphrase that unlocks your private key. To provide it as a secure string instead of plain text, select the field's input menu and switch to the Passphrase (Secure) input (a SecureString).
• Verify Signature - When enabled, verifies the PGP signature of the decrypted data using the public key. This field only supports Boolean values (True, False). The default value is False.
• Public Key File Path - The path to the signer's PGP public key file. Required only when Verify Signature is enabled.

Sortie

• Decrypted Text - Reference to the decrypted text stored in a String variable for use in other activities.

Configuration Windows - Héritage

Panneau propriétés

Commun

• Continue On Error - Specifies if the automation should continue even if the activity throws an error. This field only supports Boolean values (True, False). The default value is False. As a result, if the field is blank and an error is thrown, the execution of the project stops. If the value is set to True, the execution of the project continues regardless of any error.
  Remarque :

  Si cette activité est incluse dans Essayer de capturer (Try Catch) et que la valeur de la propriété Poursuite sur erreur (ContinueOnError) est True, aucune erreur n'est détectée lors de l'exécution du projet.

• NomAffichage (DisplayName) - Nom affiché de l'activité.

Entrée

• Algorithm - A drop-down menu which enables you to select the decryption algorithm you want to use. The following options are available: AES (Deprecated), AES GCM, DES (Deprecated), RC2 (Non-FIPS) (Deprecated), Rijndael (Non-FIPS) (Deprecated), and TripleDES.

  Remarque :

  Lors de l'utilisation de l'algorithme AES GCM , l'entrée de déchiffrement doit être fournie au format de (octets concaténés) : Salt (8bytes) + IV (12 bytes) + encryptedData (variable bytes) + Tag (16 bytes). L'activité utilise également les paramètres suivants :

  • Le nombre d'itérations PBKDF2 est de 10 000
  • La clé générée est de 256 bits (32 octets)

  Notez que la Clé générée 256 bits n'est pas la même que l'option d'entrée Clé .

• Encoding : l'encodage utilisé pour interpréter le texte d'entrée et la clé spécifiés dans la propriété Key. Ce champ prend uniquement en charge les variables Encoding. Pour plus d'informations sur ce type de variable, consultez la documentation officielle de Microsoft.

• Key - The key that you want to use to decrypt the specified file. This field supports only strings and String variables.

• Key Secure String - The secure string used to decrypt the input string.

• Text - The text that you want to decrypt. This field supports only strings and String variables.

Divers

• Privé (Private) - Si cette option est sélectionnée, les valeurs des variables et des arguments ne sont plus enregistrées au niveau Détaillé (Verbose).

Sortie

• Result - The decrypted text, stored in a String variable.