Look into getting rid of `crypto-browserify`

[sidvishnoi]

crypto-browserify has enough methods that are available in SubtleCrypto API, readily available in the browser. Check what specific functions we need this particular library for, and see if we can have a thin wrapper over SubtleCrypto to get the same polyfill effect.

Presently, that this library a lot of outdated packages to our bundle, and I see a lot of dependabot security alerts due to this.

Relates to interledger/open-payments-node#4.

[sidvishnoi]

Following are the usage of crypto:

// node_modules/.pnpm/httpbis-digest-headers@1.0.0/node_modules/httpbis-digest-headers/lib/index.js
crypto_1.createHash // only sha256 or sha512

// node_modules/.pnpm/@interledger+open-payments@7.4.0/node_modules/@interledger/open-payments/dist/test/helpers.js
(crypto_1.generateKeyPairSync)('ed25519')

// node_modules/.pnpm/@interledger+open-payments@7.4.0/node_modules/@interledger/open-payments/dist/client/index.js
const parseKey = (deps, privateKey) => {
    if (privateKey instanceof crypto_1.KeyObject) 

return (0, crypto_1.createPrivateKey)(privateKey);

// node_modules/.pnpm/@interledger+http-signature-utils@2.0.3/node_modules/@interledger/http-signature-utils/dist/utils/key.js
key = crypto.createPrivateKey(fileBuffer);

const keypair = crypto.generateKeyPairSync('ed25519');

const key = crypto.createPrivateKey(privateKey);

// node_modules/.pnpm/@interledger+http-signature-utils@2.0.3/node_modules/@interledger/http-signature-utils/dist/utils/jwk.js
? providedPrivateKey
        : (0, crypto_1.generateKeyPairSync)('ed25519').privateKey;
    const jwk = (0, crypto_1.createPublicKey)(privateKey).export({


// node_modules/.pnpm/@interledger+http-signature-utils@2.0.3/node_modules/@interledger/http-signature-utils/dist/test-utils/keys.js
crypto_1.default.generateKeyPairSync('ed25519');

// node_modules/.pnpm/@interledger+http-signature-utils@2.0.3/node_modules/@interledger/http-signature-utils/dist/utils/validation.js
return crypto.verify(null, data, publicKey, Buffer.from(sig.replace('sig1=', ''), 'base64'));

// node_modules/.pnpm/http-message-signatures@1.0.4/node_modules/http-message-signatures/lib/algorithm/index.js
signer.sign = async (data) => (0, crypto_1.createHmac)('sha256', key).update(data).digest();

crypto_1.timingSafeEqual

signer.sign = async (data) => (0, crypto_1.createSign)('sha512').update(data).sign({

async (data, signature) => (0, crypto_1.createVerify)('sha512').update(data).verify({

signer.sign = async (data) => (0, crypto_1.sign)(null, data, key);