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Add a util that wraps all libsodium calls

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This commit is contained in:
Vishnu Mohandas 2020-10-01 06:58:21 +05:30
parent 07502e1bfc
commit 212f8f2ccd
1 changed files with 99 additions and 0 deletions
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src/utils/crypto/libsodium.ts Normal file
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import sodium from 'libsodium-wrappers';
export async function encryptToB64(data: string, key: string) {
await sodium.ready;
var bKey: Uint8Array;
if (key == null) {
bKey = sodium.crypto_secretbox_keygen();
} else {
bKey = await fromB64(key)
}
const nonce = sodium.randombytes_buf(sodium.crypto_secretbox_NONCEBYTES);
const encryptedData = sodium.crypto_secretbox_easy(data, nonce, key);
return {
encryptedData: await toB64(encryptedData),
key: await toB64(bKey),
nonce: await toB64(nonce),
}
}
export async function decryptToB64(data: string, nonce: string, key: string) {
await sodium.ready;
const decrypted = await decrypt(await fromB64(data),
await fromB64(nonce),
await fromB64(key))
return await toB64(decrypted);
}
export async function encrypt(data: Uint8Array, key?: Uint8Array) {
await sodium.ready;
if (key == null) {
key = sodium.crypto_secretbox_keygen();
}
const nonce = sodium.randombytes_buf(sodium.crypto_secretbox_NONCEBYTES);
const encryptedData = sodium.crypto_secretbox_easy(data, nonce, key);
return {
encryptedData: encryptedData,
key: key,
nonce: nonce,
}
}
export async function decrypt(data: Uint8Array, nonce: Uint8Array, key: Uint8Array) {
await sodium.ready;
return sodium.crypto_secretbox_open_easy(data, nonce, key);
}
export async function verifyHash(hash: string, input: Uint8Array) {
// hash =
// '$argon2id$v=19$m=262144,t=4,p=1$WxOZeKEfky2PulhotYHn2Q$JzOaXBmxDkAmFyK+HJZfgvEEHYE41Awk53In8BK2cCE<43>';
console.log(hash);
await sodium.ready;
return (sodium.crypto_pwhash_str_verify(hash, input) == 0);
}
export async function hash(input: string | Uint8Array) {
await sodium.ready;
return sodium.crypto_pwhash_str(
input,
sodium.crypto_pwhash_MEMLIMIT_SENSITIVE,
sodium.crypto_pwhash_MEMLIMIT_SENSITIVE,
);
}
export async function deriveKey(passphrase: Uint8Array, salt: Uint8Array) {
await sodium.ready;
return sodium.crypto_pwhash(
sodium.crypto_secretbox_KEYBYTES,
passphrase,
salt,
sodium.crypto_pwhash_OPSLIMIT_INTERACTIVE,
sodium.crypto_pwhash_MEMLIMIT_INTERACTIVE,
sodium.crypto_pwhash_ALG_DEFAULT,
);
}
export async function generateMasterKey() {
await sodium.ready;
return sodium.crypto_kdf_keygen();
}
export async function generateSaltToDeriveKey() {
await sodium.ready;
return sodium.randombytes_buf(sodium.crypto_pwhash_SALTBYTES);
}
export async function fromB64(input: string) {
await sodium.ready;
return sodium.from_base64(input, sodium.base64_variants.ORIGINAL);
}
export async function toB64(input: Uint8Array) {
await sodium.ready;
return sodium.to_base64(input, sodium.base64_variants.ORIGINAL);
}
export async function fromString(input: string) {
await sodium.ready;
return sodium.from_string(input);
}