signData

signData

Signs data with a WebCrypto private key and returns the signature beside the resolved AlgorithmIdentifier material for embedding in a signed structure.

The algorithm is inferred from the key (RSASSA-PKCS1-v1_5, ECDSA, Ed25519); RSA-PSS keys require an explicit { kind: 'rsa-pss' } profile. ECDSA signatures are returned DER-encoded. Throws on unsupported key algorithms.

function signData(
	privateKey: CryptoKey,
	data: Uint8Array,
	profile?: SignatureProfileInput,
): Promise<SignDataResult>

Parameters

• privateKey: CryptoKey
• data: Uint8Array
• profile?: SignatureProfileInput