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• .. (вверх)
• [DIR] ..
• [FILE] Arguments.ts
• [FILE] Commands.ts
• [FILE] Inputs.ts
• [FILE] ObjectCache.ts
• [FILE] Transaction.ts
• [FILE] TransactionData.ts
• [DIR] __tests__
• [DIR] data
• [DIR] executor
• [FILE] hash.ts
• [FILE] index.ts
• [DIR] intents
• [FILE] json-rpc-resolver.ts
• [FILE] object.ts
• [FILE] pure.ts
• [FILE] serializer.ts
• [FILE] utils.ts

Просмотр файла: hash.ts

// Copyright (c) Mysten Labs, Inc.
// Modifications Copyright (c) 2024 IOTA Stiftung
// SPDX-License-Identifier: Apache-2.0

import { blake2b } from '@noble/hashes/blake2b';

/**
 * Generates a Blake2b hash of typed data as a base64 string.
 *
 * @param typeTag type tag (e.g. TransactionData, SenderSignedData)
 * @param data data to hash
 */
export function hashTypedData(typeTag: string, data: Uint8Array): Uint8Array {
    const typeTagBytes = Array.from(`${typeTag}::`).map((e) => e.charCodeAt(0));

    const dataWithTag = new Uint8Array(typeTagBytes.length + data.length);
    dataWithTag.set(typeTagBytes);
    dataWithTag.set(data, typeTagBytes.length);

    return blake2b(dataWithTag, { dkLen: 32 });
}

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