2021-12-07 13:18:08 -05:00

89 lines
2.3 KiB
JavaScript

const { JWKKeySupport, JOSENotSupported } = require('../errors')
const { KEY_MANAGEMENT_ENCRYPT, KEY_MANAGEMENT_DECRYPT } = require('../help/consts')
const { JWA, JWK } = require('../registry')
// sign, verify
require('./hmac')(JWA, JWK)
require('./ecdsa')(JWA, JWK)
require('./eddsa')(JWA, JWK)
require('./rsassa_pss')(JWA, JWK)
require('./rsassa')(JWA, JWK)
require('./none')(JWA)
// encrypt, decrypt
require('./aes_cbc_hmac_sha2')(JWA, JWK)
require('./aes_gcm')(JWA, JWK)
// wrapKey, unwrapKey
require('./rsaes')(JWA, JWK)
require('./aes_kw')(JWA, JWK)
require('./aes_gcm_kw')(JWA, JWK)
// deriveKey
require('./pbes2')(JWA, JWK)
require('./ecdh/dir')(JWA, JWK)
require('./ecdh/kw')(JWA, JWK)
const check = (key, op, alg) => {
const cache = `_${op}_${alg}`
let label
let keyOp
if (op === 'keyManagementEncrypt') {
label = 'key management (encryption)'
keyOp = KEY_MANAGEMENT_ENCRYPT
} else if (op === 'keyManagementDecrypt') {
label = 'key management (decryption)'
keyOp = KEY_MANAGEMENT_DECRYPT
}
if (cache in key) {
if (key[cache]) {
return
}
throw new JWKKeySupport(`the key does not support ${alg} ${label || op} algorithm`)
}
let value = true
if (!JWA[op].has(alg)) {
throw new JOSENotSupported(`unsupported ${label || op} alg: ${alg}`)
} else if (!key.algorithms(keyOp).has(alg)) {
value = false
}
Object.defineProperty(key, cache, { value, enumerable: false })
if (!value) {
return check(key, op, alg)
}
}
module.exports = {
check,
sign: (alg, key, payload) => {
check(key, 'sign', alg)
return JWA.sign.get(alg)(key, payload)
},
verify: (alg, key, payload, signature) => {
check(key, 'verify', alg)
return JWA.verify.get(alg)(key, payload, signature)
},
keyManagementEncrypt: (alg, key, payload, opts) => {
check(key, 'keyManagementEncrypt', alg)
return JWA.keyManagementEncrypt.get(alg)(key, payload, opts)
},
keyManagementDecrypt: (alg, key, payload, opts) => {
check(key, 'keyManagementDecrypt', alg)
return JWA.keyManagementDecrypt.get(alg)(key, payload, opts)
},
encrypt: (alg, key, cleartext, opts) => {
check(key, 'encrypt', alg)
return JWA.encrypt.get(alg)(key, cleartext, opts)
},
decrypt: (alg, key, ciphertext, opts) => {
check(key, 'decrypt', alg)
return JWA.decrypt.get(alg)(key, ciphertext, opts)
}
}