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yakivmospan/KeyStoreWrapper.kt

Last active November 20, 2017 19:57
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KeyStoreWrapper.kt
@TargetApi(23)
fun createAndroidKeyStoreSymmetricKey(alias: String): SecretKey {
val keyGenerator = KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, "AndroidKeyStore")
val builder = KeyGenParameterSpec.Builder(alias, KeyProperties.PURPOSE_ENCRYPT or KeyProperties.PURPOSE_DECRYPT)
.setBlockModes(KeyProperties.BLOCK_MODE_CBC)
.setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7)
keyGenerator.init(builder.build())
return keyGenerator.generateKey()
}
fun getAndroidKeyStoreSymmetricKey(alias: String): SecretKey? = keyStore.getKey(alias, null) as SecretKey?
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