All files / src/crypto verify.ts

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import {getCurve} from './curves'
 
/**
 * Verify signature using message and public key.
 * @internal
 */
export function verify(
    signature: Uint8Array,
    message: Uint8Array,
    pubkey: Uint8Array,
    type: string
) {
    const curve = getCurve(type)
    const r = signature.subarray(1, 33)
    const s = signature.subarray(33, 33 + 32)
    return curve.verify(new Uint8Array([...r, ...s]), message, pubkey, {
        prehash: false,
        format: 'compact',
        lowS: false,
    })
}