doc/uImage.FIT/signature.txt

11 that it can be verified using a public key later. Provided that the private
13 any image can be verified in this way.
15 See verified-boot.txt for more general information on verified boot.
150 - required: If present this indicates that the key must be verified for the
152 normally verified by the FIT image booting algorithm. Valid values are
311 verified later even if the FIT has been signed with other keys in the
317 FITs are verified when loaded. After the configuration is selected a list
319 each image must be verified against those keys. This means that every image
349 Simple Verified Boot Test
352 Please see doc/uImage.FIT/verified-boot.txt for more information
358 Test Verified Boot Run: unsigned signatures:: OK
360 Test Verified Boot Run: signed images: OK
362 Test Verified Boot Run: unsigned config: OK
364 Test Verified Boot Run: signed config: OK
368 Test Verified Boot Run: signed config: OK
369 Test Verified Boot Run: signed config with bad hash: OK
372 Test Verified Boot Run: unsigned signatures:: OK
374 Test Verified Boot Run: signed images: OK
376 Test Verified Boot Run: unsigned config: OK
378 Test Verified Boot Run: signed config: OK
382 Test Verified Boot Run: signed config: OK
383 Test Verified Boot Run: signed config with bad hash: OK