Class: CompactEncrypt

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The CompactEncrypt class is used to build and encrypt Compact JWE strings.

This class is exported (as a named export) from the main 'jose' module entry point as well as from its subpath export 'jose/jwe/compact/encrypt'.

Example

const jwe = await new jose.CompactEncrypt(
  new TextEncoder().encode('It’s a dangerous business, Frodo, going out your door.'),
)
  .setProtectedHeader({ alg: 'RSA-OAEP-256', enc: 'A256GCM' })
  .encrypt(publicKey)

console.log(jwe)

Constructors

Constructor

▸ new CompactEncrypt(plaintext): CompactEncrypt

CompactEncrypt constructor

Parameters

Parameter	Type	Description
`plaintext`	`Uint8Array`	Binary representation of the plaintext to encrypt.

Returns

CompactEncrypt

Methods

encrypt()

▸ encrypt(key, options?): Promise<string>

Encrypts and resolves the value of the Compact JWE string.

Parameters

Parameter	Type	Description
`key`	`KeyInput`	Public Key or Secret to encrypt the JWE with. See Algorithm Key Requirements.
`options?`	`EncryptOptions`	JWE Encryption options.

Returns

Promise<string>

setContentEncryptionKey()

▸ setContentEncryptionKey(cek): this

Sets a content encryption key to use, by default a random suitable one is generated for the JWE "enc" (Encryption Algorithm) Header Parameter.

Parameters

Parameter	Type	Description
`cek`	`Uint8Array`	JWE Content Encryption Key.

Returns

this

Deprecated

You should not use this method. It is only really intended for test and vector validation purposes.

setInitializationVector()

▸ setInitializationVector(iv): this

Sets the JWE Initialization Vector to use for content encryption, by default a random suitable one is generated for the JWE "enc" (Encryption Algorithm) Header Parameter.

Parameters

Parameter	Type	Description
`iv`	`Uint8Array`	JWE Initialization Vector.

Returns

this

Deprecated

You should not use this method. It is only really intended for test and vector validation purposes.

setKeyManagementParameters()

▸ setKeyManagementParameters(parameters): this

Sets the JWE Key Management parameters to be used when encrypting. Use this method instead of the header setters to configure algorithm inputs such as ECDH-ES "apu" (Agreement PartyUInfo) and "apv" (Agreement PartyVInfo), or PBES2 "p2c" (PBES2 Count). The parameters are added to the appropriate JOSE Header.

Parameters

Parameter	Type	Description
`parameters`	`JWEKeyManagementHeaderParameters`	JWE Key Management parameters.

Returns

this

setProtectedHeader()

▸ setProtectedHeader(protectedHeader): this

Sets the JWE Protected Header on the CompactEncrypt object.

Parameters

Parameter	Type	Description
`protectedHeader`	`CompactJWEHeaderParameters`	JWE Protected Header object.

Returns

this