config BR2_PACKAGE_HOST_UBOOT_TOOLS bool "host u-boot tools" help Companion tools for Das U-Boot bootloader. http://www.denx.de/wiki/U-Boot/WebHome if BR2_PACKAGE_HOST_UBOOT_TOOLS config BR2_PACKAGE_HOST_UBOOT_TOOLS_FIT_SIGNATURE_SUPPORT bool "FIT signature verification support" help Enables support for FIT Signature Verification. Flat Image Trees (FIT) supports hashing of images so that these hashes can be checked on loading. This protects against corruption of the image. However it does not prevent the substitution of one image for another. The signature feature allows the hash to be signed with a private key such that it can be verified using a public key later. Provided that the private key is kept secret and the public key is stored in a non-volatile place, any image can be verified in this way. endif