Function createKeyPairFromBytes

  • createKeyPairFromBytes(bytes, extractable?): Promise<CryptoKeyPair>

  • Given a 64-byte Uint8Array secret key, creates an Ed25519 public/private key pair for use with other methods in this package that accept CryptoKey objects.

    Parameters

    • bytes: ReadonlyUint8Array<ArrayBufferLike>

      64 bytes, the first 32 of which represent the private key and the last 32 of which represent its associated public key

    • Optionalextractable: boolean

      Setting this to true makes it possible to extract the bytes of the private key using the crypto.subtle.exportKey() API. Defaults to false.

    Returns Promise<CryptoKeyPair>

    Example

    import fs from 'fs';
    import { createKeyPairFromBytes } from '@solana/keys';

    // Get bytes from local keypair file.
    const keypairFile = fs.readFileSync('~/.config/solana/id.json');
    const keypairBytes = new Uint8Array(JSON.parse(keypairFile.toString()));

    // Create a CryptoKeyPair from the bytes.
    const { privateKey, publicKey } = await createKeyPairFromBytes(keypairBytes);

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