Trusted indicators to secure visual outputs

A storage device or storage disk comprising instructions that, when executed, cause at least one processor to at least:

• check for proof of trust information in one or more pre-determined positions in a trusted digital image, the proof of trust information including a secure output marker, the secure output marker indicative of information corresponding to a trusted output area of the trusted digital image;
• decrypt the secure output marker using one or more security keys from a trusted execution environment (TEE), the TEE isolated from a computing application;
• and
• enable activation of a trusted output indicator in response to a match between first data corresponding to the secure output marker and second data corresponding to the trusted output area of the trusted digital image.

An apparatus comprising:

• means for checking for proof of trust information in one or more pre-determined positions in a trusted digital image, the proof of trust information including a secure output marker, the secure output marker indicative of information corresponding to a trusted output area of the trusted digital image;
• means for decrypting the secure output marker using one or more security keys from a trusted execution environment (TEE), the TEE isolated from a computing application;
• and
• means for enabling activation of a trusted output indicator in response to a match between first data corresponding to the secure output marker and second data corresponding to the trusted output area of the trusted digital image.