HmacContext

Represents an HMAC (Hash-based Message Authentication Code) context. This class provides functionality for creating and verifying HMAC signatures.

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Extends

• BaseCryptoClass

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Constructors

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new HmacContext()

new HmacContext(): HmacContext

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Returns

HmacContext

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Methods

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sign()

sign(message: ArrayBuffer): Promise<ArrayBuffer>

Sign a message using the HMAC context.

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Parameters

message

ArrayBuffer The message to be signed.

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Throws

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

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Returns

Promise<ArrayBuffer> Promise<ArrayBuffer> A promise that resolves to the HMAC signature as an ArrayBuffer.

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verify()

verify(message: ArrayBuffer, tag: ArrayBuffer): Promise<boolean>

Verify the authenticity of a message using the HMAC context.

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Parameters

message

ArrayBuffer The original message to verify.

tag

ArrayBuffer The HMAC tag (signature) to verify against the message.

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Throws

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

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Returns

Promise<boolean> Promise<boolean> A promise that resolves to true if the message is authentic, false otherwise.