Where can I download iOS 8.x firmware / IPSW files for the iPhone 5s?

Where can I download iOS 8.x firmware / IPSW files for the iPhone 5s?

The iPhone 5s was the first iPhone to feature Touch ID. The iPhone 5s was originally released with iOS 7 installed. Here are official iOS 8 firmware / IPSW files for the iPhone 5s:

iPhone 5s (AT&T / GSM) iOS 8.1.1: iPhone6,1_8.1.1_12B435_Restore.ipsw
iPhone 5s (GSM & CDMA) iOS 8.1.1: iPhone6,2_8.1.1_12B435_Restore.ipsw

iPhone 5s (AT&T / GSM) iOS 8.1.0: iPhone6,1_8.1_12B411_Restore.ipsw
iPhone 5s (GSM & CDMA) iOS 8.1.0: iPhone6,2_8.1_12B411_Restore.ipsw

iPhone 5s (AT&T / GSM) iOS 8.0.2: iPhone6,1_8.0.2_12A405_Restore.ipsw
iPhone 5s (GSM & CDMA) iOS 8.0.2: iPhone6,2_8.0.2_12A405_Restore.ipsw

iPhone 5s (AT&T / GSM) iOS 8.0.1: iPhone6,1_8.0.1_12A402_Restore.ipsw
iPhone 5s (GSM & CDMA) iOS 8.0.1: iPhone6,2_8.0.1_12A402_Restore.ipsw

iPhone 5s (AT&T / GSM) iOS 8.0.0: iPhone6,1_8.0_12A365_Restore.ipsw
iPhone 5s (GSM & CDMA) iOS 8.0.0: iPhone6,2_8.0_12A365_Restore.ipsw