Export encryption public key for encryption?

[pwFoo]

To exchange encrypted data sender need the encrytion public key, but haven't found a way to export public key only with works to encrypt data?
Looks like WebCrypto.encrypt() uses the full priv + pub pair ?
If I exportKey (is it public only?!) encrypt data fails

key = await WebCrypto.exportKey(user.crypt)
Uint8Array(16) [48, 145, 82, 140, 48, 167, 237, 210, 49, 48, 243, 75, 144, 29, 236, 61, buffer: ArrayBuffer(16), byteLength: 16, byteOffset: 0, length: 16, Symbol(Symbol.toStringTag): 'Uint8Array']0: 481: 1452: 823: 1404: 485: 1676: 2377: 2108: 499: 4810: 24311: 7512: 14413: 2914: 23615: 61buffer: ArrayBuffer(16)byteLength: 16byteOffset: 0length: 16Symbol(Symbol.toStringTag): "Uint8Array"[[Prototype]]: TypedArray

enc = await WebCrypto.encrypt(key, msg)
easy-web-crypto.js:2 Uncaught Error: Invalid key type
    at o (easy-web-crypto.js:1:28754)
    at easy-web-crypto.js:1:31329
    at Generator.next (<anonymous>)
    at easy-web-crypto.js:1:28694
    at new Promise (<anonymous>)
    at e (easy-web-crypto.js:1:28439)
    at Module.B (easy-web-crypto.js:1:31293)
    at <anonymous>:1:23

Why encryption needs the full key pair with priv and pub? Encryption should work with public key part only, right?
Priv + Pub works:

await WebCrypto.encrypt(user.crypt, "Data to encrypt...")
{ciphertext: '9dace44e07c2c98f6fbe92fd287eb3bc4d93a66edd71adbd3306b919c0cc8eeba6cf918a', iv: '1e5ec0fff2fdc951a945034f'}

No problems with signing. Use keypairs private key to sign data and just the public key to verify

user.pub
CryptoKey {type: 'public', extractable: true, algorithm: {…}, usages: Array(1)}
user.priv
CryptoKey {type: 'private', extractable: true, algorithm: {…}, usages: Array(1)}

msg = "Just a simple message to sign..."

signed = await WebCrypto.sign(user.priv, msg)
'gkTm55qj6jI0wg4K7+bmln2H41rT0aYE0Zzyrk/jMnSWsmR2mL/kzj97x/7Ctgw+g53plTTwx4bowUXFSJTBeQ=='

await WebCrypto.verify(user.pub, msg, signed)
true

[deiu]

From what I can remember about the browser native WebCrypto API, you use asymmetric keys for signatures, and symmetric (AES) keys for encryption. You cannot encrypt data using the public key, it has to be done with AES.

[Swar511]

swar511