Certificate Pinning allows increased security on top of the commonly used SSL protocol for mobile apps. It assists to prevent certificate hijacks and mitigates implications from compromised certificate authorities. By using Certificate Pinning, apps have an additional validation of the server’s certificate.

In order to use Certificate Pinning, the brand will need to go through an on-boarding process. This process includes setting up the Vanity URL feature, which is a prerequisite to using Certificate Pinning. The on-boarding process includes the following steps:

  • Request to use the feature from the account team.

  • Filling the Vanity URL feature request form.

  • Purchasing a SAN certificate according to a CSR which will be provided by the account team.

  • Providing the purchased certificate to LivePerson.

  • LivePerson internal configuration.

The duration of the on-boarding process will be according to LivePerson's SLA.

Using the feature

The iOS SDK will check the entire trust chain against the supplied public keys in the authenticationParams. This means you could supply a key from any of the certificates against any part of the chain. Using the described functionality without having the feature configured will result in failures while trying to communicate with LivePerson’s servers.


In order to add the feature on iOS, please perform the following steps:

  1. Add the domains for lptags and csds (both will be provided by the account team)

    LPConfig.defaultConfiguration.csdsDomain = "<SOME DOMAIN>"

    LPConfig.defaultConfiguration.lpTagDomain = "<SOME DOMAIN>"

The configuration should be added anywhere inside the code before calling the method showConversation(conversationViewParams, authenticationParams: authenticationParams)

  1. Adding the public keys to the SDK: The brand should extract the public keys of the SAN certificate that was provided to LivePerson. The keys should be added to the object LPAuthenticationParams.

Multiple keys can be added, as long as one of the keys will match the returned key, the connection will be initiated.

Code sample

func certPinningExample() {

  LPConfig.defaultConfiguration.csdsDomain = "<SOME DOMAIN>"
  LPConfig.defaultConfiguration.lpTagDomain = "<SOME DOMAIN>"

  let conversationQuery = LPMessaging.instance.getConversationBrandQuery("accountNumber")
  let conversationViewParams = LPConversationViewParams(conversationQuery: conversationQuery, containerViewController: self, isViewOnly: false)
  let authenticationParams = LPAuthenticationParams(certPinningPublicKeys: ["key1", "key2", "key3"])

  LPMessaging.instance.showConversation(conversationViewParams, authenticationParams: authenticationParams)