| 1 | import { u8aToU8a } from '@polkadot/util';
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| 2 | import { vrfSign } from '@polkadot/wasm-crypto';
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| 3 | const EMPTY_U8A = new Uint8Array();
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| 4 | /**
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| 5 | * @name sr25519VrfSign
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| 6 | * @description Sign with sr25519 vrf signing (deterministic)
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| 7 | */
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| 8 | export function sr25519VrfSign(message, { secretKey }, context = EMPTY_U8A, extra = EMPTY_U8A) {
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| 9 | if (secretKey?.length !== 64) {
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| 10 | throw new Error('Invalid secretKey, expected 64-bytes');
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| 11 | }
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| 12 | return vrfSign(secretKey, u8aToU8a(context), u8aToU8a(message), u8aToU8a(extra));
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| 13 | }
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