Class JWE
dw.crypto
Class JWE
Object
dw.crypto.JWE
This class represents a JSON Web Encryption (JWE) object.

Note: this class handles sensitive security-related data. Pay special attention to PCI DSS v3 requirements 2, 4, and 12.

Properties
algorithm  :  String  (Read Only)
Get the algorithm (alg) from the header.
encryptionMethod  :  String  (Read Only)
Get the encryption method (enc) from the header.
headerMap  :  Map  (Read Only)
Get a copy of the JWE headers as a Map.
keyID  :  String  (Read Only)
Get the key id (kid) from the header.
payload  :  String  (Read Only)
Get the decrypted payload.
Constructor Summary
This class does not have a constructor, so you cannot create it directly.
Method Summary
decrypt(privateKey : KeyRef) : void
Decrypt the payload of this JWE object.
getAlgorithm() : String
Get the algorithm (alg) from the header.
getEncryptionMethod() : String
Get the encryption method (enc) from the header.
getHeaderMap() : Map
Get a copy of the JWE headers as a Map.
getKeyID() : String
Get the key id (kid) from the header.
getPayload() : String
Get the decrypted payload.
static parse(jwe : String) : JWE
Parse a JSON Web Encryption (JWE) object from its compact serialization format.
Methods inherited from class Object
assign, create, create, defineProperties, defineProperty, entries, freeze, fromEntries, getOwnPropertyDescriptor, getOwnPropertyNames, getOwnPropertySymbols, getPrototypeOf, hasOwnProperty, is, isExtensible, isFrozen, isPrototypeOf, isSealed, keys, preventExtensions, propertyIsEnumerable, seal, setPrototypeOf, toLocaleString, toString, valueOf, values
Method Detail
decrypt
decrypt(privateKey : KeyRef) : void
Decrypt the payload of this JWE object.

Elliptic Curve (EC) and RSA keys are both supported.

Supported EC key management algorithms:

  • ECDH-ES
  • ECDH-ES+A128KW
  • ECDH-ES+A192KW
  • ECDH-ES+A256KW
Supported EC curves:
  • P-256
  • P-384
  • P-521
Supported RSA key management algorithms:
  • RSA-OAEP-256
  • RSA-OAEP-384
  • RSA-OAEP-512
Supported content encryption algorithms:
  • A128CBC-HS256
  • A128CBC-HS384
  • A128CBC-HS512
  • A128GCM
  • A192GCM
  • A256GCM
Parameters:
privateKey - Reference to private RSA or EC key to use for decryption.
getAlgorithm
getAlgorithm() : String
Get the algorithm (alg) from the header.
Returns:
Value of the algorithm or null if missing.
getEncryptionMethod
getEncryptionMethod() : String
Get the encryption method (enc) from the header.
Returns:
Value of the encryption method or null if missing.
getHeaderMap
getHeaderMap() : Map
Get a copy of the JWE headers as a Map.
Returns:
Copy of the JWE headers.
getKeyID
getKeyID() : String
Get the key id (kid) from the header.
Returns:
Value of the key id or null if missing.
getPayload
getPayload() : String
Get the decrypted payload.
Returns:
Payload or null if the payload is encrypted.
parse
static parse(jwe : String) : JWE
Parse a JSON Web Encryption (JWE) object from its compact serialization format.
Parameters:
jwe - JWE in compact serialization format.
Returns:
JWE object.
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