| 1 | import { u8aConcat } from '@polkadot/util';
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| 2 | import { naclEncrypt, scryptEncode, scryptToU8a } from '@polkadot/util-crypto';
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| 3 | import { PKCS8_DIVIDER, PKCS8_HEADER } from './defaults.js';
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| 4 | export function encodePair({ publicKey, secretKey }, passphrase) {
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| 5 | if (!secretKey) {
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| 6 | throw new Error('Expected a valid secretKey to be passed to encode');
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| 7 | }
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| 8 | const encoded = u8aConcat(PKCS8_HEADER, secretKey, PKCS8_DIVIDER, publicKey);
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| 9 | if (!passphrase) {
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| 10 | return encoded;
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| 11 | }
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| 12 | const { params, password, salt } = scryptEncode(passphrase);
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| 13 | const { encrypted, nonce } = naclEncrypt(encoded, password.subarray(0, 32));
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| 14 | return u8aConcat(scryptToU8a(salt, params), nonce, encrypted);
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| 15 | }
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