AsymmetricCipherContextBuilder

Provides support for building contexts for asymmetric cryptographic operations.

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Extends

• BaseCryptoClass

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Extended by

• RsaOaepContextBuilder

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Constructors

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new AsymmetricCipherContextBuilder()

new AsymmetricCipherContextBuilder(): AsymmetricCipherContextBuilder

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Returns

AsymmetricCipherContextBuilder

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Methods

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buildDecryptionContext()

buildDecryptionContext(key: PrivateKey): DecryptionContext

Build a decryption context using the given private key. This context can be used to decrypt data that was encrypted with the corresponding public key.

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Parameters

key

PrivateKey The private key to use for decryption.

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Throws

• AccessDeniedError If the key lacks the KeyPurpose.DECRYPT purpose.

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Returns

DecryptionContext DecryptionContext A decryption context.

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buildEncryptionContext()

buildEncryptionContext(key: PublicKey): EncryptionContext

Build an encryption context using the given public key. This context can be used to encrypt data that only the holder of the corresponding private key can decrypt.

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Parameters

key

PublicKey The public key to use for encryption.

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Throws

• AccessDeniedError If the key lacks the KeyPurpose.ENCRYPT purpose.

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Returns

EncryptionContext EncryptionContext An encryption context.

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buildWrappingContext()

buildWrappingContext(pubKey: PublicKey, privKey: PrivateKey, scheme: WrappingScheme): WrappingContext

Build a wrapping context using the given public/private key and wrapping scheme. This context can be used for key wrapping operations, which involve encrypting cryptographic keys.

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Parameters

pubKey

PublicKey The public key. Required for wrapping operations.

privKey

PrivateKey The private key. Required for unwrapping operations.

scheme

WrappingScheme The wrapping scheme to be used.

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Throws

• AccessDeniedError Thrown when: - A public key is provided but the key lacks the KeyPurpose.WRAP purpose. - A private key is provided but the key lacks the KeyPurpose.UNWRAP purpose.
• NotSupportedError If the implementation does not support wrapping operations.

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Returns

WrappingContext WrappingContext A wrapping context.